CURRICULUM VITAE

Nombre y Apellido: Osvaldo Esteban Sala Dirección: Cátedra de Ecología e IFEVA Facultad de Agronomía, Universidad de Buenos Aires, Av San Martín 4453, Buenos Aires C1417DSE, Argentina. Tel (011) 4524-8070 int 8119 Fax (011) 4514-8730 e-mail sala@ifeva.edu.ar http://www.agro.uba.ar/users/sala ESTUDIOS CURSADOS Ingeniero Agrónomo, Facultad de Agronomía, Universidad de Buenos Aires, 1973. Master of Science in Ecology, Colorado State University, Estados Unidos de Norteamérica, 1979 Doctor of Philosophy in Ecology, Colorado State University, Estados Unidos de Norteamérica, 1982. PREMIOS Y DISTINCIONES * Andrew D. White Professor-at-Large, Cornell University, 2004 * Académico, American Academy of Arts and Sciences, USA, 2003 * Académico, Academia Nacional de Ciencias Exactas, Físicas y Naturales, Buenos Aires, 2003 * Premio Bernardo Houssay 2003 * Premio Konex de Platino 2003 * Académico, Academia Nacional de Ciencias, Córdoba, Argentina, 2002 * Guggenheim Fellow 1993 * Premio Bernardo Houssay 1987 ANTECEDENTES LABORALES CARGOS QUE OCUPA ACTUALMENTE 1990-presente Profesor Titular, Cátedra de Ecología, Facultad de Agronomía, UBA. 2003-presente Investigador Superior, CONICET, Carrera del Investigador Científico.

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CARGOS OCUPADOS 1971-1972 Ayudante de segunda, Cátedra de Botánica Agrícola, Departamento de Ecología,

Facultad de Agronomía, UBA. 1972-1974 Ayudante de segunda, Cátedra de Fisiología y Ecología Vegetales, Departamento

de Ecología, Facultad de Agronomía, UBA. 1974-1975 Ayudante de primera, Cátedra de Fisiología y Ecología Vegetales, Departamento

de Ecología, Facultad de Agronomía, UBA. 1975-1979 Jefe de trabajos prácticos, Cátedra de Fisiología y Ecología Vegetales,

Departamento de Ecología, Facultad de Agronomía, UBA. 1979-1980 Beca externa de perfeccionamiento, CONICET. 1980-1982 Profesor Adjunto, Departamento de Range Science, Colorado State University. 1982-1983 Profesor Adjunto, Cátedra de Fisiología y Ecología Vegetales, Departamento de

Ecología, Facultad de Agronomía, UBA. 1983-1987 Investigador Adjunto, CONICET, Carrera del Investigador Científico. 1985-1987 Investigador Científico, Natural Resource Ecology Laboratory, Colorado State

University. 1987-1988 Director del Departamento de Ecología, Facultad de Agronomía, UBA. 1983-1990 Profesor Asociado, Cátedra de Fisiología y Ecología Vegetales, Departamento de

Ecología, Facultad de Agronomía, UBA. 1987-1994 Investigador Independiente, CONICET, Carrera del Investigador Científico. 1993-1994 Profesor Invitado, Department of Biological Sciences, Stanford University. 1994-2003 Investigador Principal, CONICET, Carrera del Investigador Científico. FORMACION DE RECURSOS HUMANOS Dirección de las Tesis de Magister Scientiae o Doctorado, Escuela de Posgrado Facultad de Agronomía, UBA de: Rodolfo A. Golluscio finalizada y aprobada en 1990 José M. Paruelo finalizada y aprobada en 1991 Martín R. Aguiar finalizada y aprobada en 1991 Adriana Beltrán finalizada y aprobada en 1997 Esteban Jobbágy finalizada y aprobada en 1998 Pablo Roset finalizada y aprobada en 2000 Verónica Pancotto finalizada y aprobada en 2004 Laura Yahdjian en ejecución Pedro Flombaum en ejecución Victoria Marchesini en ejecución Lara Reichmann en ejecución Dirección de Becarios M. Oesterheld, Perfeccionamiento CIC, 1983-1984 R.A. Golluscio, Formación superior CONICET, 1987-1988 E.G. Jobbágy, Iniciación/Perfeccionamiento UBA, 1993-1998

2 P.A. Roset, Iniciación/Perfeccionamiento, CONICET, 1995-2000

P. Folgarait, Perfeccionamiento, CONICET, 1995-1998 M.L. Yahdjian, Iniciación, FONCYT, 1998- V. Pancotto, Iniciación, CONICET, 1998- P. Flombaum, Iniciación FONCyT, 1999- M. Pinillos, Iniciación Red LatinoAmericana de Botánica, 2000. L. Vivanco, Estímulo, Iniciación UBA, 1999- V. Marchesini, US National Science Foundation, 2003- L. Reichmann, Iniciación UBA, 2004- Dirección de Investigadores R.A. Golluscio, Investigador Asistente, CONICET, 1989-1995 J.M. Paruelo, Investigador Asistente, CONICET, 1990- 1998 M.A. Brizuela, Investigador Adjunto, Comisión de Investigaciones Científicas de la Provincia

de Buenos Aires, 1990-1995 M. Oesterheld, Investigador Asistente, CONICET, 1992-1997 S. Cid, Investigador Asistente, CONICET, 1994-1998. M.R. Aguiar, Investigador Asistente, CONICET, 1995-2000 E. Huber-Sannwald, Investigador, InterAmerican Institute for Global Change Research, 1997 P. Folgarait, Investigador Asistente, CONICET, 1998-2000 A. Vilela, Investigador Asistente, CONICET, 2003- SUBSIDIOS PARA TAREAS DE INVESTIGACIÓN 2004-2007 El cambio global y el ciclo del carbono en ecosistemas áridos y semiáridos:

Experimentos en la estepa patagónica. Universidad de Buenos Aires 2004-2007 Spatial and temporal controls of carbon cycling in arid and semiarid ecosystems

PICT, Agencia Nacional de Promoción Científica y Tecnológica 2002-2004 Ecophysiological consequences of infrequent massive flowering of monocarpic

bamboo grasses (Chusquea spp) in temperate and tropical South America, US National Science Foundation

2001-2002 El efecto de la biodiversidad sobre el funcionamiento de los ecosistemas: diversidad de especies, grupos funcionales, parches y recursos. Universidad de Buenos Aires

2000-2003 Global change effects on primary production in arid ecosystems: The Patagonian steppe as a model ecosystem. PICT, Agencia Nacional de Promoción Científica y Tecnológica

1999-2003 The role of biodiversity and climate in the functioning of ecosystems: A comparative study of grasslands, savannas, and forests. InterAmerican Institute for Global Change Research

1998-2001 Ecosystem responses to stratopheric ozone reduction in southernmost South America. US National Science Foundation

1998-2000 El efecto de la biodiversidad sobre el funcionamiento del ecosistema: Experimentos y modelos a dos escalas en la estepa patagónica. Universidad de Buenos Aires

1998-1999 El efecto del Cambio Global sobre el funcionamiento de la Estepa Patagónica, Agencia Nacional de Promoción Científica y Tecnológica

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1998-2000 Tecnología de manejo de pastizales para aumentar la productividad y disminuir el deterioro, PMT-SID Agencia Nacional de Promoción Científica y Tecnológica

1997-2000 Controles de la producción y la descomposición en la Estepa Patagónica,CONICET. 1997 Concurso 1996 de subsidios para las ciencias y las humanidades. Fundación

Antorchas 1997 Global Change Effects on Biodiversity and Ecosystem Functioning: Manipulation of a

Keystone Process. InterAmerican Institute for Global Change Research 1996 Subsidios para organizar el Taller “ Biodiversity Scenarios” en University of

California at Santa Barbara, California, USA. Junio1996. InterAmerican Institute for Global Change Research y United States National Center for Ecological Analysis and Synthesis

1995 Subsidios para organizar el Taller “ Global Change and Ecological Complexity” en Cedar Creek, Minnesota, USA, septiembre de 1995. Electric Power Research Insitute y International Geosphere Biosphere Programme

1995 Subsidio para organizar el Taller “Global Change Impacts on latin American Terrestrial Ecosystems and their Feedbacks to the Globe” Buenos Aires, marzo 95. Inter-American Insititute for Global Change Reserach

1995-1998 Ecosystem Responses to Stratospheric Ozone Reduction in Southernmost South America. US National Science Foundation

1994-1997 Dinámica estacional de la productividad primaria y sus controles UBA 1994-1997 Importancia de las precipitaciones pequeñas en la mineralización neta de nitrógeno en

la estepa patagónica UBA 1994-97 Constraints on Production and Decomposition in Temperate Semiarid Grasslands. US

National Science Foundation 1992-95 Sustentabilidad de los Recursos Naturales en Sistemas Naturales y Cultivados,

CONICET. 1993 Concurso 1992 de subsidios para las ciencias y las humanidades. Fundación

Antorchas 1992 Concurso 1991 de subsidios para las ciencias y las humanidades. Fundación

Antorchas 1991-93 Efecto del ambiente y el manejo sobre la dinámica del agua disponible para la

vegetación patagónica UBA 1991-93 Partición de nutrientes minerales entre pastos y arbustos en la estepa patagónica UBA. 1991-93 Dinámica cíclica entre los módulos estructurales de la vegetación de la estepa

patagónica UBA 1991 Concurso 1990 de subsidios para la colaboración científico académica con Chile.

Fundación Antorchas. 1991 Concurso 1990 de subsidios para las ciencias y las humanidades. Fundación

Antorchas 1989-93 Distribución de recursos entre pastos, arbustos y hierbas en regiones áridas y

semiáridas. CONICET 1989-93 La sucesión cíclica en la estepa patagónica: su relación estructura en módulos de la

vegetación. CONICET 1988-89 Dinámica del agua en la estepa patagónica: Principales controles de las salidas por

percolación UBA

41988-89 Partición del agua entre distintas formas de vida en la estepa árida patagónica UBA

1987-88 Interacciones pasto-arbusto en dos regiones semiáridas templadas, US National Science Foundation-CONICET

1985-88 Efecto de la defoliación sobre la dinámica de un pastizal natural de la Depresión del Salado. CONICET

1985-88 Partición de recursos entre las distintas formas de vida presentes en la estepa árida, CONICET

1983-84 Partición de recursos entre distintas formas de vida en el coironal del SW de Chubut UBA

1983-84 Convergencia en la partición de recursos y en su uso entre distintas formas de vida en dos regiones semiáridas, US National Science Foundation-CONICET

PUBLICACIONES CIENTÍFICAS

o 125. Yahdjian, L., O. E. Sala, and A. T. Austin. 2005. Differential controls of water input on litter decomposition and nitrogen dynamics in the Patagonian Steppe. Ecosystems (In press)

o 124. Cumming, G. S., J. Alcamo, O. E. Sala, R. Swart, E. M. Bennett, and M. Zurek 2005. Are existing global scenarios consistent with ecological feedbacks? Ecosystems (In press)

o 123. Huxman, T. E., M. D. Smith, P. A. Fay, A. K. Knapp, M. R. Shaw, M. E. Loik, S. D. Smith, D. T. Tissue, J. C. Zak, J. F. Weltzin, W. T. Pockman, O. E. Sala, B. Haddad, J. Harte, G. W. Koch, S. Schwinning, E. E. Small, and D. G. Williams. 2004. Convergence across biomes to a common rain-use efficiency. Nature 429:651-654

o 122. Schwinning, S., and O. E. Sala. 2004. Hierarchy of responses to resource pulses in arid and semi-arid ecosystems. Oecologia 141:221-220

o 121. Schwinning, S., O. E. Sala, M. Loik, and J. Ehleringer. 2004. Thresholds, memory, and seasonality: understanding pulse dynamics in arid/semiarid ecosystems. Oecologia 141: 191-193

o 120. Robson, T. M., V. A. Pancotto, C. L. Ballaré, O. E. Sala, A. L. Scopel, and M. M. Caldwell. 2004. Reduction of solar UV-B mediates changes in the Sphagnum capitulum microenvironment and the peatland microfungal community. Oecologia 140:480-490

o 119. Adler, P. B., D. G. Milchunas, W. K. Lauenroth, O. E. Sala, and I. C. Burke. 2004. Functional traits of graminoids in semi-arid steppes: a test of grazing histories. Journal of Applied Ecology 41:653-663

o 118. Zaller, J. G., P. S. Searles, M. M. Caldwell, S. D. Flint, A. L. Scopel, and O. E. Sala. 2004. Growth responses to ultraviolet-B radiation of two Carex species dominating an Argentinean fen ecosystem. Basic and Applied Ecology 5: 153-162.

o 117. Giordano, C. V., T. Mori, O. E. Sala, A. L. Scopel, M. M. Caldwell, and C. L. Ballaré. 2003. Functional acclimation to solar UV-B radiation in Gunnera magellanica, a native plant species of southernmost Patagonia. Plant Cell and Environment 26: 2027-2036.

o 116. López, N. I., A. T. Austin, O. E. Sala, and B. S. Méndez. 2003. Controls on nitrification in a water-limited ecosystem: experimental inhibition of ammonia-oxidising bacteria in the Patagonian steppe. Soil Biology & Biochemistry 35: 1609-1613.

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o 115.. Zaller, J. G., P. S. Searles, M. C. Rousseaux, S. D. Flint, M. M. Caldwell, O. E. Sala, C. L. Ballaré, and A. L. Scopel. 2003. Solar ultraviolet-B radiation can affect slug-feeding preference for some plant species native to a fen ecosystem in Tierra del Fuego, Argentina. Plant Ecology 169: 43-51.

o 114. Ollinger, S., O. E. Sala, G. Agren, B. Berg, E. Davidson, C. B. Field, M. Lerdau, J. Neff, M. Scholes, and R. Sterner. 2003. New frontiers in the study of element interactions. Pages 63-91 In J. M. Melillo, C. B. Field, and B. Moldan, editors. Interactions of the major biogeochemical cycles: Global change and human impacts. Island Press, Washington, DC.

o 113. Robson, T. M., V. A. Pancotto, S. D. Flint, C. L. Ballaré, O. E. Sala, A. L. Scopel, and M. M. Caldwell. 2003. Six years of solar UV-B manipulations affect growth of Sphagnum and vascular plants in a Tierra del Fuego peatland. New Phytologist 160:379-389.

o 112. Pancotto, V. A., O. E. Sala, M. Cabello, N. I. López, T. M. Robson, C. L. Ballare, M. M. Caldwell, and A. L. Scopel. 2003. Solar UV-B decreases decomposition in herbaceous plant litter in Tierra del Fuego, Argentina: Potential role of an altered decomposer community. Global Change Biology 9:1465-1474

o 111. Sala, O.E. 2003. Almost all about biodiversity. Science 299: 1521. o 110. Veron, S. R., J. M. Paruelo, O.E. Sala, and W.K. Lauenroth. 2002. Environmental

controls of primary production in agricultural systems of the Argentine Pampas. Ecosystems 5: 625-635.

o 109. Yahdjian, L., and O. E. Sala. 2002. A rainout shelter design for intercepting different amounts of rainfall. Oecologia 133:95-101.

o 108. Loreau, M., A. Downing, M. Emmerson, A. Gonzalez, J. Hughes, P. Inchausti, J. Joshi, J. Norberg, and O. E. Sala. 2002. A new look at the relationship between diversity and stability. Pages 79-91. In M. Loreau, S. Naeem, and P. Inchausti, editors. Biodiversity and ecosystem functioning: synthesis and perspectives. Oxford University Press, Oxford.

o 107. Zaller, J. G., M. M. Caldwell, S. D. Flint, A. L. Scopel, O. E. Sala, and C. L. Ballaré. 2002. Solar UV-B radiation affects below-ground parameters in a fen ecosystem in Tierra del Fuego, Argentina: implications of stratospheric ozone depletion. Global Change Biology. 8: 867-871.

o 106. Folgarait, P. J., and O. E. Sala. 2002. Granivory rates by rodents, insects, and birds at different microsites in the. Patagonian steppe Ecography. 25: 417-427.

o 105. Austin, A. T., and O. E. Sala. 2002. Carbon and nitrogen dynamics across a natural precipitation gradient in Patagonia, Argentina. Journal of Vegetation Science. 13: 351-360.

o 104. Jobbágy, E., O. E. Sala, and J. M. Paruelo. 2002. Patterns and controls of primary production in the Patagonian steppe: a remote sensing approach. Ecology. 83:307-319.

o 103. Loreti, J., M. Oesterheld, and O. E. Sala. 2001. Lack of intraspecific variation in resistance to defoliation in a grass that evolved under light grazing pressure. Plant Ecology 157:195-202.

o 102. Paruelo, J. M., E. G. Jobbágy, and O. E. Sala. 2001. Current distribution of ecosystem functional types in temperate South America. Ecosystems 4:683-698

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o 101. Ballaré, C. L., M. C. Rousseaux, P. S. Searles, J. G. Zaller, C. V. Giordano, T. M. Robson, M. M. Caldwell, O. E. Sala, and A. L. Scopel. 2001. Impacts of solar ultraviolet-B radiation on terrestrial ecosystems of Tierra del Fuego (southern Argentina). Journal of Photochemistry and Photobiology 62:67-77.

o 100. Sala, O. E., F. S. Chapin, and E. Huber-Sannwald. 2001. Potential biodiversity change: global patterns and biome comparisons. Pages 351-367 in F. S. Chapin, O. E. Sala, and E. Huber-Sannwald, editors. Global Biodiversity in a Changing Environment: Scenarios for the 21st Century. Springer Verlag, New York.

o 99. Sala, O. E. 2001. Temperate Grasslands. Pages 121-137 in F. S. Chapin, O. E. Sala, and E. Huber-Sannwald, editors. Global Biodiversity in a Changing Environment: Scenarios for the 21st Century. Springer Verlag, New York.

o 98. Chapin III, F. S., O. E. Sala, and E. Huber-Sannwald. 2001. The future of biodiversity in a changing world. Pages 1-4 in F. S. Chapin, O. E. Sala, and E. Huber Sannwald, editors. Global Biodiversity in a Changing Environment: Scenarios for the 21st Century. Springer Verlag, New York.

o 97. Chapin III, F. S., O. E. Sala, and E. Huber-Sannwald, editors. 2001. Global Biodiversity in a Changing Environment: Scenarios for the 21st Century. Springer-Verlag, New York.

o 96. Clark, J. S., S. R. Carpenter, M. Barber, S. Collins, A. Dobson, J. Foley, D. Lodge, M. Pascual, R. Pielke, W. Pizer, C. Pringle, W. V. Reid, K. A. Rose, O. E. Sala, W. Schlesinger, D. H. Wall, and D. Wear. 2001. Ecological Forecasts: an Emerging Imperative. Science 293:657-660.

o 95. Sala, O. E. 2001. Productivity of temperate grasslands. Pages 285-300 in J. Roy, B. Saugier, and H. A. Mooney, editors. Terrestrial Global Productivity. Academic Press, San Diego.

o 94. Rousseaux, M. C., A. L. Scopel, P. S. Searles, M. M. Caldwell, O. E. Sala, and C. L. Ballaré. 2001. Responses to solar ultraviolet-B radiation in a shrub-dominated natural ecosystem of Tierra del Fuego (southern Argentina). Global Change Biology 7:467-478.

o 93. Sala, O. E. 2001. Price put on biodiversity. Nature 412:34-36. o 92. Oesterheld, M., J. Loreti, M. Semmartin, and O. E. Sala. 2001. Inter-annual variation

in primary production of a semi-arid grassland related to previous-year production. Journal of Vegetation Science 12:137-142.

o 91. Sala, O. E., A. T. Austin, and L. Vivanco. 2001. Temperate grassland and shrubland ecosystems. Pages 627-635 in S. Levin, editor. Encyclopedia of Biodiversity. Academic Press, San Diego.

o 90. Paruelo, J. M., O. E. Sala, and A. B. Beltrán. 2000. Long term dynamics of water and carbon in semi-arid ecosystems: A gradient analysis in the Patagonian Steppe. Plant Ecology 150:133-143.

o 89. Wolters, V., W. L. Silver, D. E. Bignell, D. C. Coleman, P. Lavelle, W. van der Putten, P. de Ruiter, J. Rusek, D. H. Wall, D. A. Wardle, L. Brussaard, J. M. Dangerfield, V. K. Brown, K. Giller, D. U. Hooper, O. E. Sala, J. Tiedje, and J. A. van Veen. 2000. Effects of global changes on above and belowground biodiversity n terrestrial ecosystems: implications for ecosystem functioning. BioScience 50:1089-1098.

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o 88. Sala, O. E., and A. T. Austin. 2000. Methods of estimating aboveground net primary production. Pages 31-43 in O. E. Sala, R. B. Jackson, H. A. Mooney, and R. W. Howarth, editors. Methods in Ecosystem Science. Springer Verlag, New York.

o 87. Sala, O. E., R. B. Jackson, H. A. Mooney, and R. W. Howarth. 2000. Methods in ecosystem science: progress, tradeoffs, and limitations. Pages 1-3 in O. E. Sala, R. B. Jackson, H. A. Mooney, and R. W. Howarth, editors. Methods in Ecosystem Science. Springer Verlag, New York.

o 86. Sala, O. E., R. B. Jackson, H. A. Mooney, and R. W. Howarth, editors. 2000. Methods in Ecosystem Science. Springer Verlag, New York.

o 85. Chapin, F. S., E. S. Zavaleta, V. T. Eviner, R. L. Naylor, P. M. Vitousek, H. L. Reynolds, D. U. Hooper, S. Lavorel, O. E. Sala, S. E. Hobbie, M. C. Mack, and S. Diaz. 2000. Consequences of changing biodiversity. Nature 405:234-242.

o 84. Jobbágy, E., and O. E. Sala. 2000. Controls of grass and shrub aboveground production in the Patagonian steppe. Ecological Applications 10:541-549.

o 83. Jackson, R. B., H. J. Schenk, E. G. Jobbágy, J. Canadell, G. D. Colello, R. E. Dickinson, C. B. Field, P. Friedlingstein, M. Heimann, K. Hibbard, D. W. Kicklighter, A. Kleidon, R. P. Neilson, W. J. Parton, O. E. Sala, and M. T. Sykes. 2000. Belowground consequences of vegetation change and their treatment in models. Ecological Applications 10:470-483.

o 82. Sala, O. E., F. S. Chapin, J. J. Armesto, E. Berlow, J. Bloomfield, R. Dirzo, E. Huber- Sanwald, L. F. Huenneke, R. B. Jackson, A. Kinzig, R. Leemans, D. M. Lodge, H. A. Mooney, M. Oesterheld, N. L. Poff, M. T. Sykes, B. H. Walker, M. Walker, and D. H. Wall. 2000. Global biodiversity scenarios for the year 2100. Science 287:1770-1774.

o 81. Aguiar, M., and O. E. Sala. 1999. Patch structure, dynamics, and implications for the functioning of arid ecosystems. Trends in Ecology and Evolution 14:273-277.

o 80. Austin, A. T., and O. E. Sala., 1999. Foliar δ15N is negatively correlated with ranfall along the IGBP transect in Australia. Australian Journal of Plant Physiology 26:293-295.

o 79. Paruelo, J., W. K. Lauenroth, I. Burke, and O. E. Sala. 1999. Grassland precipitation-use efficiency varies across a resource gradient. Ecosystems 2:64-68.

o 78. Sala, O. E., F. S. Chapin III, R. H. Gardner, W. K. Lauenroth, H. A. Mooney, and P. S. Ramakrishnan. 1999. Global change, biodiversity and ecological complexity. Pages 304-328 in B. H. Walker, W. L. Steffen, J. Canadell, and J. S. I. Ingram, editors. The Terrestrial Biosphere and Global Change: Implications for Natural and Managed Ecosystems. Cambridge University Press, Cambridge.

o 77. Paruelo, J., E. Jobbágy, and O. E. Sala. 1998. Biozones of Patagonia (Argentina). Ecología Austral 8:145-153.

o 76. Paruelo, J., A. Beltrán, E. Jobbágy, O. E. Sala, and R. Golluscio. 1998. The climate of Patagonia: general patterns amd controls on biotic processes. Ecología Austral 8:85-101.

o 75. Aguiar, M., and O. E. Sala. 1998. Interactions among grasses, shrubs, and herbivores in Patagonian grass-shrub steppes. Ecología Austral 8:201-210.

o 74. Schulze, E., M. Caldwell, J. Canadell, H. A. Mooney, R. B. Jackson, D. Parson, R. Scholes, O. E. Sala, and P. Trimborn. 1998. Downward flux of water through roots (i.e. inverse hydraulic lift) in dry Kalahari sands. Oecologia 115:460-462.

o 73. Golluscio, R., O. E. Sala, and W. K. Lauenroth. 1998. Differential use of large summer rainfall events by shrubs and grasses: a manipulative experiment in the Patagonian steppe. Oecologia 115:17-25.

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o 72. Paruelo, J., E. Jobbágy, O. E. Sala, W. K. Lauenroth, and I. Burke. 1998. Functional and structural convergence of temperate grassland and shrubland ecosystems. Ecological Applications 8:194-206.

o 71. Jackson, R. B., O. E. Sala, J. M. Paruelo, and H. A. Mooney. 1998. Ecosystem water fluxes for two grasslands in elevated CO2: a modeling analysis. Oecologia 113:537-546.

o 70. Chapin, F. S. I., O. E. Sala, I. C. Burke, J. P. Grime, D. U. Hooper, W. K. Lauenroth, A. Lombard, H. A. Mooney, A. R. Mosier, S. Naeem, S. W. Pacala, J. Roy, W. Steffen, and D. Tilman. 1998. Ecosystem consequences of changing biodiversity. BioScience 48: 45-52.

o 69. Chapin, F. S., B. H. Walker, R. J. Hobbs, D. U. Hooper, J. H. Lawton, O. E. Sala, and D. Tilman. 1997. Biotic controls over the functioning of ecosystems. Science 277: 500-504.

o 68. Sala, O. E., W. K. Lauenroth, and R. A. Golluscio. 1997. Plant functional types in temperate semi-arid regions. Pages 217-233 in T. M. Smith, H. H. Shugart, and F. I. Woodward, editors. Plant Functional Types. Cambridge University Press, Cambridge.

o 67. Aguiar, M. R., and O. E. Sala. 1997. Seed distribution constrains the dynamics of the Patagonian steppe. Ecology 78:93-100.

o 66. Sala, O. E., and J. M. Paruelo. 1997. Ecosystem services in grasslands. Pages 237-252 in G. C. Daily, editor. Nature's Services: Societal Dependence on Natural Ecosystems. Island Press, Washington, D.C.

o 65. Schulze, E. D., H. A. Mooney, O. E. Sala, E. Jobbágy, N. Buchmann, G. Bauer, J. Canadell, R. B. Jackson, J. Loreti, M. Oesterheld, and J. R. Ehleringer. 1996. Rooting depth, water availability, and vegetation cover along an aridity gradient in Patagonia. Oecologia 108: 503-511.

o 64. Canadell, J., R. B. Jackson, J. R. Ehleringer, H. A. Mooney, O. E. Sala, and E. D. Schulze. 1996. Maximum rooting depth of vegetation types at the global scale. Oecologia 108: 583-606.

o 63. Jackson, R. B., J. Canadell, J. R. Ehleringer, H. A. Mooney, O. E. Sala, and E. D. Schulze. 1996. A global analysis of root distributions for terrestrial biomes. Oecologia 108:389-411.

o 62. Sala, O. E. 1996. Global change and ecological complexity. Pages 341-345 in B. Walker, and W. Steffen, editors. Global Change and Terrestrial Ecosystems. Cambridge University Press, Cambridge.

o 61. Sala, O. E., W. K. Lauenroth, and I. C. Burke. 1996. Carbon budgets of temperate grasslands and the effects of global change. Pages 101-119 in A. Breymeyer, D. O. Hall, J. M. Melillo, and G. I. Agren, editors. Global Change: Effects on Coniferous Forests and Grasslands. John Wiley and Sons, Chichester, New York.

o 60. Sala, O. E., W. K. Lauenroth, S. J. McNaughton, G. Rusch, and X. Zhang. 1996. Biodiversity and ecosystem functioning in grasslands. Pages 129-149 in H. A. Mooney, J. H. Cushman, E. Medina, O. E. Sala, and E. D. Schulze, editors. Functional Role of Biodiversity: A Global Perspective. J. Wiley and Sons, Chichester.

o 59. Mooney, H. A., J. H. Cushman, E. Medina, O. E. Sala, and E. D. Schulze. 1996. Conclusions. Pages 475-484 in H. A. Mooney, J. H. Cushman, E. Medina, O. E. Sala, and E. D. Schulze, editors. Functional Roles of Biodiversity: A Global Perspective. J. Wiley and Sons, Chichester.

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o 58. Mooney, H. A., J. H. Cushman, E. Medina, O. E. Sala, and E. D. Schulze. 1996. Introduction. Pages 1-6 in H. A. Mooney, J. H. Cushman, E. Medina, O. E. Sala, and E. D. Schulze, editors. Functional Roles of Biodiversity: A Global Perspective. J. Wiley and Sons, Chichester.

o 57. Mooney, H. A., J. H. Cushman, E. Medina, O. E. Sala, and E. D. Schulze, Editors. 1996. Functional Roles of Biodiversity: A Global Perspective. John Wiley & Sons, Chichester.

o 56. Sala, O. E., and M. R. Aguiar. 1996. Origin, maintenance, and ecosystem effect of vegetation patches in arid lands. Pages 29-32 in N. West, editor. Rangelands in a Sustainable Biosphere. Society for Range Management, Denver.

o 55. Aguiar, M. R., J. M. Paruelo, O. E. Sala, and W. K. Lauenroth. 1996. Ecosystem responses to changes in plant functional type composition: an example from the Patagonian steppe. Journal of Vegetation Science 7:381-390.

o 54. Melillo, J. M., I. C. Prentice, G. D. Farquhar, E. D. Schulze, and O. E. Sala. 1996. Terrestrial biotic responses to environmental change and feedbacks to climate. Pages 444-481 in J. T. Houghton, L. G. Meira Filho, B. A. Callander, N. Harris, A. Kattenberg, and K. Maskells, editors. Climate Change 1995: The Science of Climate Change. Cambridge University Press, Cambridge.

o 53. Parton, W., J. Scurlock, D. Ojima, D. Schimel, D. Hall, M. Coughenour, E. Garcia Moya, T. Gilmanov, A. Kamnalrut, J. Kinyamario, T. Kirchner, T. Kittel, J. Menaut, O. E. Sala, R. Scholes, and J. van Veen. 1995. Impact of climate change on grassland production and soil carbon worldwide. Global Change Biology 1:13-22.

o 52. Paruelo, J. M., W. K. Lauenroth, H. E. Epstein, I. C. Burke, M. R. Aguiar, and O. E. Sala. 1995. Regional climatic similarities in the temperate zones of North and South America. Journal of Biogeography 22:2689-2699.

o 51. Jackson, R. B., Y. Luo, Z. G. Cardon, O. E. Sala, C. B. Field, and H. A. Mooney. 1995. Photosynthesis, growth and density for the dominant species in a CO2-enriched grassland. Journal of Biogeography 22:221-225.

o 50. Sala, O. E., W. K. Lauenroth, S. J. McNaughton, G. Rusch, and X. Zhang. 1995. Temperate grasslands. Pages 361-366 in H. A. Mooney, J. Lubchenco, R. Dirzo and O. E. Sala, editors. Global Biodiversity Assessment, Cambridge University Press, Cambridge.

o 49. Sala, O. E. 1995. Human-induced perturbations, biodiversity and ecosystem functioning. Pages 318-323 in H. A. Mooney, J. Lubchenco, R. Dirzo and O. E. Sala, editors. Global Biodiversity Assessment, Cambridge University Press, Cambridge.

o 48. Cushman, J., R. Dirzo, A. Janetos, J. Lubchenco, H. A. Mooney, and O. E. Sala. 1995. Conclusions. Pages 446-452 in H. Mooney, J. Lubchenco, R. Dirzo, and O. E. Sala, editors. Biodiversity and Ecosystem Functioning: Ecosystem analyses. Global Biodiversity Assessment, Cambridge University Press, Cambridge.

o 47. Cushman, J., R. Dirzo, A. Janetos, J. Lubchenco, H. A. Mooney, and O. E. Sala. 1995. Introduction. Page 335 in H. A. Mooney, J. Lubchenco, R. Dirzo, and O. E. Sala, editors. Biodiversity and Ecosystem Functioning: Ecosystem Analyses. Global Biodiversity Assessment, Cambridge University Press, Cambridge.

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o 46. Cushman, J., R. Dirzo, A. Janetos, J. Lubchenco, H. A. Mooney, and O. E. Sala. 1995. Conclusions. Pages 323-325 in H. A. Mooney, J. Lubchenco, R. Dirzo, and O. E. Sala, editors. Biodiversity and Ecosystem Functioning: Basic Principles. Global Biodiversity Assessment, Cambridge University Press, Cambridge.

o 45. Cushman, J., R. Dirzo, A. Janetos, J. Lubchenco, H. A. Mooney, and O. E. Sala. 1995. Introduction. Pages 281-282 in H. A. Mooney, J. Lubchenco, R. Dirzo, and O. E. Sala, editors. Biodiversity and Ecosystem Functioning: Basic Principles. Global Biodiversity Assessment, Cambridge University Press, Cambridge.

o 44. Mooney, H. A., J. Lubchenco, R. Dirzo, and O. E. Sala. 1995. Biodiversity and ecosystem functioning: ecosystem analyses, section 6. Global Biodiversity Assessment, Cambridge University Press, Cambridge.

o 43. Mooney, H. A., J. Lubchenco, R. Dirzo, and O. E. Sala. 1995. Biodiversity and ecosystem functioning: basic principles, section 5. Global Biodiversity Assessment, Cambridge University Press, Cambridge.

o 42. Oesterheld, M., and O. E. Sala. 1995. Modelos ecológicos tradicionales y actuales para interpretar la dinámica de la vegetación: el caso del pastizal de la Pampa Deprimida. Revista Argentina de Producción Animal 14:9-14.

o 41. Paruelo, J. M., and O. E. Sala. 1995. Water losses in the Patagonian steppe: a modelling approach. Ecology 76: 510-520.

o 40. Golluscio, R. A., P. A. Roset, O. E. Sala, and J. M. Paruelo. 1994. Modelos en ecología. Ecología Austral 4:123-132.

o 39. Lauenroth, W. K., O. E. Sala, D. P. Coffin, and T. B. Kirchner. 1994. Recruitment of Bouteloua gracilis in the shortgrass steppe: a simulation analysis of the role of soil water. Ecological Applications 4: 741-749.

o 38. Jackson, R. B., O. E. Sala, C. B. Field, and H. A. Mooney. 1994. CO2 alters water use, carbon gain, and yield for the dominant species in a natural grassland. Oecologia 98: 257-262.

o 37. Soriano, A., O. E. Sala, and S. B. Perelman. 1994. Patch structure and dynamics of a Patagonian steppe. Vegetatio 111:127-135.

o 36. Aguiar, M. R., and O. E. Sala. 1994. Competition, facilitation, seed distribution, and the origin of patches in a Patagonian steppe. Oikos 70: 26-34.

o 35. Paruelo, J. M., and O. E. Sala. 1993. The effect of global change on maize production in the Argentinean pampas. Climate Research 3:161-167.

o 34. Mooney, H. A., and O. E. Sala. 1993. Science and sustainable use. Ecological Applications 3:564-566.

o 33. Golluscio, R. A., and O. E. Sala. 1993. Plant functional types and ecological strategies in Patagonian forbs. Journal of Vegetation Science 4:839-846.

o 32. McNaughton, S. J., O. E. Sala, and M. Oesterheld. 1993. Comparative ecology of African and South American arid to subhumid ecosystems. Pages 548-567 in P. Goldblatt, editor. Biological Relationships between Africa and South America. Yale University Press, New Haven.

o 31. Oesterheld, M., O. E. Sala, and S. J. McNaughton. 1992. The effect of animal husbandry on herbivore-carrying capacity at a regional scale. Nature 356:234-236.

o 30. Lauenroth, W. K., and O. E. Sala. 1992. Long term forage production of North American shortgrass steppe. Ecological Applications 2:397-403.

o 29. Sala, O. E., W. K. Lauenroth and W. J. Parton. 1992. Long term soil water dynamics of the shortgrass steppe. Ecology 73:1175-1181.

o 28. Aguiar, M. R., A. Soriano, and O. E. Sala. 1992. Competition and facilitation in the recruitment of grass seedlings in Patagonia. Functional Ecology 6:66-70.

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o 27. Sala, O. E. 1992. Achieving a sustainable biosphere: an international endeavour. Trends in Ecology and Evolution 7:324-325.

o 26. Sala, O. E. 1992. Structure and function. Pages 387-395 in A. Soriano (editors) Río de la Plata Grasslands. In R.T. Coupland, editor. Ecosystems of the World, Volume 8A, Natural Grasslands. Elsevier Scientific Publishing Company, Amsterdam.

o 25. Huntley, B. J., E. Ezcurra, E. R. Fuentes, K. Fujii, P. J. Grubb, W. Haber, J. R. E. Harger, M. M. Holland, S. A. Levin, J. Lubchenco, H. A. Mooney, V. Neronov, I. Noble, H. R. Pulliam, P. S. Ramakrishnan, P. G. Risser, O. E. Sala, J. Sarukhan, and W. G. Sombroek. 1991. A sustainable biosphere: the global imperative. Ecology International 20:1-14.

o 24. Fernández, R. J., O. E. Sala, and R. A. Golluscio. 1991. Woody and herbaceous aboveground production of a Patagonian steppe. Journal of Range Management 44:434-437.

o 23. Biondini, M. E., W. K. Lauenroth, and O. E. Sala. 1991. Correcting estimates of net primary production: are we overestimating plant production in rangelands? Journal of Range Management 44:194-198.

o 22. Oesterheld, M., and O. E. Sala. 1990. Grazing effect upon seedling establishment: the role of seed and safe-site availability. Journal of Vegetation Science 1:353-358.

o 21. Paruelo, J. M., and O. E. Sala. 1990. Characterization of the floods in the Flooding Pampa (Buenos Aires, Argentina): water table dynamics. Turrialba 40:5-11.

o 20. Sala, O. E., R. A. Golluscio, W. K. Lauenroth and A. Soriano. 1989. Resource partitioning between shrubs and grasses in the Patagonian steppe. Oecologia (Berl) 81:501-505.

o 19. Sala, O. E., M. E. Biondini, and W. K. Lauenroth. 1989. Bias in estimates of primary production: an analytical solution. Ecological Modelling 44:43-55.

o 18. Sala, O. E., W. J. Parton, L. A. Joyce, and W. K. Lauenroth. 1988. Primary production of the central grassland region of the United States: spatial pattern and major controls. Ecology 69:40-45.

o 17. Milchunas, D. G., O. E. Sala, and W. K. Lauenroth. 1988. A generalized model of the effects of grazing by large herbivores on grassland community structure. American Naturalist 132:87-106.

o 16. Sala, O. E. 1988. The effect of herbivory on vegetation structure. Pages 317-330 in M. J. A. Werger, P. J. M. van der Aart, H. J. During, and J. T. A. Verhoeven, editors. Plant Form and Vegetation Structure: Adaptation, Plasticity, and Relation to Herbivory . SPB Academic Publishing bv, The Hague, The Netherlands.

o 15. Senft, R. L., M. B. Coughenour, D. W. Bailey, L. R. Rittenhouse, O. E. Sala, and D. M. Swift. 1987. Large herbivore foraging and ecological hierarchies. BioScience 37:789-799.

o 14. Lauenroth, W. K., O. E. Sala, D. G. Milchunas, and R. W. Lathrop. 1987. Root dynamics of Bouteloua gracilis during short-term recovery from drought. Functional Ecology 1:117-124.

o 13. Soriano, A., and O. E. Sala. 1986. Emergence and survival of Bromus setifolius seedlings in different microsites of the Patagonian arid steppe. Israel Journal of Botany 35:91-100.

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o 12. Sala, O. E., M. Oesterheld, R. J. C. León, and A. Soriano. 1986. Grazing effect upon plant community structure in subhumid grasslands of Argentina. Vegetatio 67:27-32.

o 11. Sala, O. E. 1986. The energy analysis of food production systems and the role of animal production: a review. Turrialba 36:91-97.

o 10. Sala, O. E., and W. K. Lauenroth. 1985. Root profiles and the ecological effect of light rainshowers in arid and semiarid regions. American Midland Naturalist 114:406-408.

o 9. Soriano, A., and O. E. Sala. 1983. Ecological strategies in a Patagonian arid steppe. Vegetatio 56:9-15.

o 8. Cauhépé, M., R. J. C. León, O. E. Sala, and A. Soriano. 1982. Pastizales naturales y pasturas cultivadas, dos sistemas complementarios y no opuestos. Revista Facultad de Agronomía 3:1-11.

o 7. Sala, O. E., W. K. Lauenroth, and W. J. Parton. 1982. Plant recovery following prolonged drought in a shortgrass steppe. Agricultural Meteorology 27:49-58.

o 6. Sala, O. E., W. K. Lauenroth, and C. P. P. Reid. 1982. Water relations: a new dimension for niche separation between Bouteloua gracilis and Agropyron smithii in North American semiarid grasslands. Journal of Applied Ecology 19:647-657.

o 5. Sala, O. E., and W. K. Lauenroth. 1982. Small rainfall events: an ecological role in semiarid regions. Oecologia 53:301-304.

o 4. Sala, O. E., A. Soriano, and S. Perelman. 1981. Water relations of the major components of a grassland in the Salado River Basin. Revista Facultad de Agronomía 2:1-10.

o 3. Sala, O. E., W. K. Lauenroth, W. J. Parton, and M. J. Trlica. 1981. Water status of soil and vegetation in a shortgrass steppe. Oecologia (Berl.) 48:327-331.

o 2. Sala, O. E., V. A. Deregibus, T. Schlichter, and H. Alippe. 1981. Productivity dynamics of a native temperate grassland in Argentina. Journal of Range Management 34:48-51.

o 1. Soriano, A., O. E. Sala, and R. J. C. Leon, 1980. Actual and potencial vegetation of the Coiron Amargo prairie in the SW Chubut. Boletin de la Sociedad Argentina de Botánica 19:309-314.

PUBLICACIONES DE DIVULGACION Sala, O.E. 1992. El cambio ecológico global y su posible efecto sobre la producción

agropecuaria. Agromercado 69:48-49. Sala, O.E. y J.M. Paruelo, 1992. Los efectos del posible cambio climático en Argentina.

Agromercado 70:36-39. Sala, O.E. 1992. Los efectos directos del aumento de la concentración de dióxido de carbono en

la atmósfera. Agromercado 71:44-46. Golluscio, R.A., Paruelo, J.M. y Sala O.E. 1992. El uso de modelos con fines agronómicos.

Proceder Agrotecnológico 1:46-57. Sala, O.E. 1993. El cambio global y su efecto sobre las relaciones entre las plantas y los

animales. Agromercado 76:28. Sala, O.E. y J.M. Paruelo. 1993. El cambio global: Efectos posibles en la producción de maíz.

Agromercado 77:33-34. Lawford, R.G., E.R. Fuentes, H.A. Mooney, J.C. Castilla, and O.E. Sala. 1993. The AMIGO

framework: understanding and measuring global change at a regional scale. Bulletin of the Ecological Society of America 74:249-250.

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Sala, O.E. Una biosfera sustentable: el desafío de esta generación, 1994. Ciencia Hoy 5:8-13. Sala, O.E., 1994. Ecological Complexity and Ecosystem Function: The Effects of Global

Change. Global Change Newsletter 18: 1-2. Sala, O.E., 1994. Ecological Complexity and Ecosystem Function. SCOPE Newsletter 46:4-5 Sala, O.E., 1996. Efectos de la Radiación Ultravioleta sobre los Ecosistemas. Ciencia Hoy 6: 56-

57. Sala, O.E., and F.S. Chapin, 2000. Scenarios of Global Biodiversity for Year 2100. GCTE News

Newsletter of the Global Change amd Terrestrial Ecosystems Core Project of IGBP 16: 1-3.

Sala, O.E., and F.S. Chapin, 2000. Scenarios of Global Biodiversity.Global Change Newsletter 43: 7-19.

Melillo, J. M., and O. E. Sala. 2002. Ecosystem Services. Pages 13-18 in E. Chivian, editor. Biodiversity: Its Importance to Human Health. Harvard Medical School, Cambridge.

TRABAJOS PRESENTADOS EN REUNIONES CIENTIFICAS Sala, O.E. y V.A. Deregibus, 1976. Productividad primaria neta aérea de un pastizal de la

Depresión del Salado. Cuarta Reunión Argentina de Ecología, Rio Cuarto, Córdoba, Argentina.

Sala, O.E. y A. Soriano, 1978. Estructura aérea de dos comunidades de pastizal de la Depresión del Salado, Provincia de Buenos Aires. Sexta Reunión Argentina de Ecología, Corrientes, Corrientes, Argentina.

Sala, O.E. y A. Soriano, 1978. Relaciones hídricas en la Depresión del Salado. Simposio Florentino Ameghino: Aprovechamiento de los recursos naturales de la Pampa Deprimida, La Plata, Buenos Aires, Argentina.

Sala, O.E. 1978. Rasgos de la productividad de un pastizal natural de la Depresión del Salado, Provincia de Buenos Aires. Reunión Anual del Departamento de Producción Animal del INTA Balcarce, Balcarce, Buenos Aires, Argentina.

Sala, O.E. 1981. Water status of soil and vegetation in a shortgrass steppe. Annual Meeting of Society for Range Management, Tulsa, Oklahoma, USA.

Sala, O.E. 1984. Partición de recursos entre distintas formas de vida en regiones semiáridas. Ocatava Reunión Nacional para el Estudio de las Regiones Aridas y Semiáridas, Trelew, Chubut, Argentina.

Sala, O.E. 1984. Los ecosistemas áridos: el agua como factor limitante de la producción. Séptima Conferencia Científica Anual Alejandro von Humboldt, Buenos Aires, Argentina.

Sala, O.E. y A. Soriano. 1984. ¿Son todas las formas de vida capaces de utilizar las lluvias pequeñas? Simposio Internacional, Progresos en el manejo de recursos naturales en regiones semiáridas y áridas, Mendoza, Mendoza, Argentina.

Soriano, A. y O.E. Sala. 1984. Relaciones entre la estructura de la estepa árida patagónica y algunos procesos relacionados con la economia del agua. Simposio Internacional, Progresos en el manejo de recursos naturales en regiones semiáridas y áridas, Mendoza, Mendoza, Argentina.

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Sala, O.E. 1985. Disturbance effects on development and maintenance of grassland: A South American case. Taller"Disturbance in temperate grasslands: Its role as a major ecological factor", Buenos Aires, Argentina.

Sala, O.E. 1985. Partición de agua entre pastos y arbustos en la estepa árida patagónica. Duodécima Reunión Argentina de Ecología, Iguazú, Misiones, Argentina.

Sala, O.E., y M. Oesterheld 1985. Influencia de la defoliación sobre la dinámica de un pastizal subhúmedo. Duodécima Reunión Argentina de Ecología, Iguazú, Misiones, Argentina.

Soriano, A. y O.E. Sala 1985. Influencias micrambientales sobre la economia del agua, el crecimiento y la senecencia de dos pastos dominantes de la estepa árida patagónica. Duodécima Reunión Argentina de Ecología, Iguazú, Misiones, Argentina.

Sala, O.E., M. Oesterheld, R.J.C. León y A. Soriano 1985. Efecto del pastoreo sobre la estructura aérea de dos comunidades del pastizal de la Pampa Deprimida. XX Jornadas Argentinas de Botánica, Salta, Salta, Argentina.

Sala, O.E., W.J.Parton, W.K. Lauenroth y L.A. Joyce 1986. Regional net primary production and soil organic matter for the Great Plains of the United States. Symposium on the role of heterogeneity on the spread of disturbance. University of Georgia, Athens, Georgia, USA.

Sala, O.E., W.J. Parton, W.K. Lauenroth y L.A.Joyce 1986. Primary production of the Great Plains. Annual Meeting, Society for Range Management. Orlando, Florida, USA.

Sala, O.E., W.K. Lauenroth, D.G. Milchunas y R.A. Golluscio 1986. Convergence in resource partitioning among plant life forms in two semiarid regions. IV International Congress of Ecology, Syracuse, New York, USA.

Lauenroth, W.K., O.E. Sala y W.J. Parton 1986. Productivity of the North American shortgrass steppe: Temporal and spatial dynamics. IV International Congress of Ecology, Syracuse, New York, USA.

Parton, W.J., O.E. Sala y D.S. Schimel 1986. Regional controls over carbon balance in the United States Great Plains. IV International Congress of Ecology, Syracuse, New York, USA.

Sala, O.E. 1986. Partition of water resources between grasses and shrubs in arid and semiarid regions. Seminar, Department of Biology, New Mexico State University, Las Cruces, New Mexico, USA.

Sala, O.E., M.E. Biondini, and W.K. Lauenroth, 1987. Errors in estimating primary production: A corrected estimate and its confidence intervals. Annual Meeting, Society for Range Management. Boise, Idaho, USA.

Lauenroth, W.K., O.E. Sala, and T.B. Kirchner, 1987. Soil water dynamics and the establishment of seedlings of Bouteloua gracilis in the shortgrass steppe: A simulation analysis. Annual Meeting, Society for Range Management. Boise, Idaho, USA.

Sala, O.E., 1987. Dinámica de las raíces de Bouteloua gracilis durante la recuperación inmediata a la sequía. Sesiones Científicas C.M. Hicken. Academia Nacional de Ciencias Exactas, Físicas y Naturales, Buenos Aires, Argentina.

Sala, O.E., 1987. The effect of herbivory on vegetation structure. International Symposium on Vegetational Structure. University of Utrecht, Utrecht, Holanda.

Sala, O.E., 1988. El efecto del pastoreo sobre la estructura de la vegetación. 13º Congreso Argentino de Producción Animal. Mar del Plata, Buenos Aires, Argentina.

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Paruelo, J.M., M.R. Aguiar, R.A. Golluscio and O.E. Sala, 1989. Pérdidas de agua por evaporación en la estepa árida del SW de Chubut: Efectos de la vegetación. Reunión Argentina de Ecología, Jujuy, Argentina.

Aguiar, M.R., O.E. Sala and A. Soriano, 1989. Relación entre la estructura de la vegetación y el reclutamiento de nuevos individuos de Bromus setifolius var pictus en la estepa patagónica. Reunión Argentina de Ecología, Jujuy, Argentina.

Oesterheld, M. and O.E. Sala, 1989. El efecto del pastoreo sobre el establecimiento de plántulas: El papel de la disponibilidad de semillas y de sitios seguros. Reunión Argentina de Ecología, Jujuy, Argentina.

Golluscio, R.A. and O.E. Sala, 1989. Una clasificación ecológica de las hierbas patagónicas. Reunión Argentina de Ecología, Jujuy, Argentina.

Sala, O.E. 1989. Utilidad de las estimaciones de productividad primaria neta en pastizales. 14º Congreso Argentino de Producción Animal, Mendoza, Argentina.

Sala, O.E. 1989. Controles de la productividad; El papel del fuego. Jornadas pampeanas sobre pastizales naturales y uso del fuego, Santa Rosa, La Pampa, Argentina.

Sala, O.E., 1990. Resource partitioning among life forms in arid regions. Center for Environmental Research, Cornell University, New York, USA.

Sala, O.E., 1990. Interactions between shrubs and grasses in the Patagonian steppe. Department of Biology, Syracuse University, New York, USA.

Lauenroth, W.K., D.P. Coffin, O.E. Sala and W.J. Parton. 1990. Soil water dynamics in grasslands: an intersite comparative simulation analysis. Annual Meeting of the Ecological Society of America, Snowbird, Utah, USA.

Sala, O.E., 1990. Dinámica de la vegetación en zonas áridas y semiáridas. Deparatmento de Biología, Universidad de La Serena, La Serena, Chile.

Sala, O.E. and E. Fuentes, 1990. Distribution of shrub life forms: temperature and moisture constraints. Workshop Earth System Response to Global Change: Northern and Southern Hemisphere Contrasts. La Serena, Chile.

Sala, O.E. and J.M Paruelo, 1991. The effect of climate change upon maize production in Argentina. Second International Climate Change and Crop Modeling Workshop. Washington DC, USA.

Fernández A., R.J., O.E. Sala and R.A. Golluscio. 1991. Productividad aérea de pastos y arbustos en la estepa patagónica. Reunión Argentina de Ecología, Rosario, Argentina.

Aguiar, M.R. and O.E. Sala. 1991. Los espacios de suelo sin vegetación en la estepa patagónica. No son sitios seguros o no tienen semillas? Reunión Argentina de Ecología, Rosario, Argentina.

Paruelo, J.M. and O.E. Sala. 1991. Efectos del cambio climático global sobre la producción agrícola argentina. Una prospección para el maíz en la pampa ondulada. Reunión Argentina de Ecología, Rosario, Argentina.

Golluscio, R.A. and O.E. Sala. 1991. Los pastos de la estepa patagónica utilizan las lluvias pequeñas y los arbustos no. Reunión Argentina de Ecología, Rosario, Argentina.

Sala, O.E. and R.A. Golluscio. 1991. Partición de nutrientes entre pastos y arbustos en la estepa patagónica. Reunión Argentina de Ecología, Rosario, Argentina.

Sala, O.E. 1991. Cambios ambientales a escala global. Reunión Argentina de Ecología, Rosario, Argentina.

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Sala, O.E. 1991. La Argentina ante un cambio climático: Efecto del cambio climático sobre la productividad agrícola. Sexto Congreso Argentino de Meteorología, Buenos Aires, Argentina.

Sala, O.E. 1991. Relaciones agua-nitrógeno en zonas áridas. Décima Reunión Nacional del Comité Argentino para el Estudio de las Regiones Aridas y Semiáridas, Bahía Blanca, Argentina.

Paruelo, J.M. y O.E. Sala. 1991. La dinámica del agua en la estepa patagónica: Su caracterización mediante un modelo de simulación. Décima Reunión Nacional del Comité Argentino para el Estudio de las Regiones Aridas y Semiáridas, Bahía Blanca, Argentina.

Aguiar, M.R., O.E. Sala y A. Soriano. 1991. Recuperación de la cobertura de gramíneas en la estepa patagónica. Especies exóticas o nativas? Décima Reunión Nacional del Comité Argentino para el Estudio de las Regiones Aridas y Semiáridas, Bahía Blanca, Argentina.

Aguiar, M.R. and O.E. Sala. 1991. Effect of shrubs upon grass recruitment: The role of competition, facilitation, and seed density in the Patagonian steppe. Annual Meeting of the Ecological Society of America, San Antonio, Texas, USA.

Sala, O.E., R.A. Golluscio, W.K. Lauenroth, D.G. Milchunas and I.C. Burke. 1991. Coupling of water and nutrient capture strategies in the Patagonian steppe. Annual Meeting of the Ecological Society of America, San Antonio, Texas, USA.

Sala, O.E. 1992. Relaciones de competencia entre pastos y arbustos en la estepa patagónica. Centre de Recerca Ecologica, Universidad Autónoma de Barcelona, Barcelona, España.

Sala, O.E. 1992. Ecología de la estepa patagónica. Instituto Pirenaico de Ecología, Consejo Superior de Investigaciones Científicas, Zaragoza, España.

Sala, O.E., W.K. Lauenroth, and I.C. Burke, 1992. Carbon budgets of temperate grasslands and the effects of global change. SCOPE project: The Effects Climate Change on Production and Decomposition in Coniferous Forests and Grasslands, Uppsala, Sweden.

Sala, O.E., and H.A. Mooney, 1992. Arid and semiarid ecosystems of the Americas and their response to Global Change. Meeting of America's Interhemisphere Geo-Biosphere Organization, Victoria, Canada.

Sala, O.E., 1992. El Cambio Global y su efecto sobre la Agricultura. Ciclo de Conferencias en Conmemoración del XX Aniversario, Universidad de Lérida España.

Sala, O.E., 1992. Large scale ecosystem processes. Department of Geography, University of Colorado, Boulder, Colorado, USA.

Paruelo J.M. y O.E. Sala, 1992. El impacto de la desertificación sobre la capacidad de carga de las estepas patagónicas: sus consecuencias económicas. II Congreso Latinoamericano de Ecología. Caxambú Brasil.

Sala, O.E. and W.K. Lauenroth, 1993. Arid and semiarid plant functional types. Plant functional types workshop, University of Virginia, Charlottesville, Virginia, USA.

Golluscio, R.A. and O.E. Sala, 1993. Efectos de las lluvias grandes sobre los pastos y los arbustos de la estepa patagónica. Reunión Argentina de Ecología, Puerto Madryn, Argentina.

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Roset, P.A., R.A. Golluscio, O.E. Sala and J.M. Paruelo, 1993. Modelos de simulación con fines didácticos: un ejemplo sobre el flujo de materia en los sistemas áridos.Reunión Argentina de Ecología, Puerto Madryn, Argentina.

Semmartín, M, M. Oesterheld, and O.E. Sala, 1993. Efecto del diseño espacial del pastoreo sobre la productividad primaria y la competencia entre plantas pastoreadas y no pastoreadas. Reunión Argentina de Ecología, Puerto Madryn, Argentina.

Paruelo, J.M. and O.E. Sala, 1993. Water losses in the patagonian steppe: a modelling approach.Annual Meeting of the Ecological Society of America, Madison, Wisconsin, USA.

Sala, O.E., 1993. Long term ecological research in the patagonian steppe. LTER All Scientists Meeting & International Summit, Estes Park, Colorado, USA.

Sala, O.E., 1993. Water constraints on nutrient acquisition: The case of the Patagonian steppe. Invited Seminar, NASA Ames Research Center, Moffett Field, California, USA.

Sala, O.E., 1994. The ecology of the Patagonian steppe. Invited seminar, Department of Botany and Microbiology, University of Oklahoma, Norman, Oklahoma, USA.

Sala, O.E., W.K. Launeroth, S.J. McNaughton, G. Rusch, and X. Zhang, 1994. Biodiversity and ecosystem function in grasslands. Biodiversity and Ecosystem Function Synthesis Conference, organized by Scientific Committee on Problems of the Environment (SCOPE) and UNEP Global Biodiversity Assessment, Asilomar, California, USA.

Sala, O.E., 1994. Biodiversity and Regional Integration: Competing Demands? Environment, Integration and Rights in the Americas, Center for Latin American Studies, Institute of International Studies, Stanford University, Stanford, USA.

Jackson, R.B., O.E. Sala, C.B. Field, and H.A. Mooney, 1994. CO2 alters water use, carbon gain, and yield in a natural grassland. First GCTE Science Conference, Woods Hole, Massachusetts, USA.

Lauenroth, W.K., J.M. Paruelo, H.E. Epstein, I.C. Burke, M.R. Aguiar, and O.E. Sala, 1994. Regional climatic similarities in the temperate zones of North and South America. First GCTE Science Conference, Woods Hole, Massachusetts, USA.

Sala, O.E., 1994. Ecological complexity and ecosystem function: The effect of Global Change. First GCTE Science Conference, Woods Hole, Massachusetts, USA.

Sala, O.E., R.B. Jackson, C.B. Field, and H.A. Mooney, 1994. CO2 alters water use, carbon gain, and yield in a natural grassland. Annual Meeting of the Ecological Society of America, Knoxville, Tennessee, USA.

Sala, O.E. 1995. Global change and ecological complexity. Global Change Impacts on Latin American Terrestrial Ecosystems and their Feedbacks to the Globe, Buenos Aires, Argentina.

Sala, O.E. 1995. Biodiversidad y funcionamiento de ecosistemas. XVII Reunión Argentina de Ecología, Mar del Plata, Argentina.

Jobbágy, E.G. and O.E. Sala 1995. Variación espacial y temporal de la productividad primaria en Patagonia: Su análisis a partir de datos satelitales. XVII Reunión Argentina de Ecología, Mar del Plata, Argentina.

Roset, P.A., R.A. Golluscio, and O.E. Sala, 1995. Papel de las lluvias grandes en la economía del nitrógeno de los arbustos patagónicos. XVII Reunión Argentina de Ecología, Mar del Plata, Argentina.

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Sala, O.E. 1995. The response of arid zones of north and south america to global change. Meeting of America's Interhemisphere Geo-Biosphere Organization, Stanford, California, USA.

Sala, O.E. and M.R. Aguiar, 1995. Origin, maintenance and ecosystem effect of vegetation patches in arid lands. International Rangeland Congress, Salt Lake City, Utah, USA.

Sala, O.E., J.M. Paruelo, R.B. Jackson, C.B. Field, and H.A. Mooney, 1995. Elevated CO2 effects on long term water dynamics: A modelling approach. Annual Meeting of the Ecological Society of America, Snowbird, Utah, USA.

Lauenroth, W.K., D.P. Coffin, and O.E. Sala, 1995. Seasonalityof water availability and the effects of climate change on the distribution of C3 and C4 grasses in the Great Plains. Annual Meeting of the Ecological Society of America, Snowbird, Utah, USA.

Coffin, D.P., O.E. Sala, W.K. Lauenroth, 1995. Plant species biodiversity and ecosystem function: relative importance of biotic mechanisms and environmental constraints.Annual Meeting of the Ecological Society of America, Snowbird, Utah, USA.

Sala, O.E., 1995. Biodiversity and ecosystem functioning: Theoretical issues. Global Change and Ecological Complexity: GCTE Focus 4 Openning Workshop, Minneapolis, Minnesota, USA.

Sala, O.E., and J.M. Paruelo, 1995. Ecosystem Services in Grasslands. Pew Scholars Annual Meeting, East Madison, New Hampshire, USA.

Sala, O.E., 1996. Ecological Buffering in Global Change. International Geosphere-Biosphere Programme Congress, Bad Munstereifel, Germany.

Sala, O.E., 1996. Biodiversity Scenarios in Grasslands. Developing Biodiversity Scenarios Workshop. National Center for Ecological Analysis and Synthesis, University of California, Santa Barbara, California, USA.

Aguiar, M.R., O.E. Sala and M. Oesterheld, 1996. Desertification and the shrub encroachment paradigm: an experiment in the Patagonian steppe. Annual Meeting of the Ecological Society of America, Providence, Rhode Island, USA.

Jackson, R.B., J. Canadell, J.R. Ehleringer, H.A. Mooney, O.E. Sala, and E.D. Schulze, 1996. A global analysis of root distributions for terrestrial biomes. Annual Meeting of the Ecological Society of America, Providence, Rhode Island, USA.

Sala, O.E., EG. Jobbagy, J. Canadell, J.R. Ehleringer, R.B. Jackson, H.A. Mooney, J.M. Paruelo, and E.D. Schulze, 1996. Ecosystem rooting depth patterns and controls: a modelling approach. Annual Meeting of the Ecological Society of America, Providence, Rhode Island, USA.

Sala, O.E. 1996 Theoretical Approaches. Towards an Explicit Representation of Root Distributions in Global Models Workshop. National Center for Ecological Analysis and Synthesis, University of California, Santa Barbara, California, USA.

Sala, O.E. 1997. The importance of biodiversity and ecosystem functioning. Annual Meeting of the American Association for the Advancement of Science, Seattle, Washington, USA.

Folgarait, P.J., O.E. Sala, and D. Primrose, 1997. Granivoría por insectos, roedores y aves en el Distrito Occidental de la estepa Patagónica. XVIII Reunión Argentina de Ecología, Buenos Aires, Argentina.

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Loreti, J., M. Oesterheld, and O.E. Sala, 1997. Respuestas a la defoliación de poblaciones de Paspalum dilatatum de sitios con distinto régimen de pastoreo. XVIII Reunión Argentina de Ecología, Buenos Aires, Argentina.

Roset, P.A., O.E. Sala, and M.R. Aguiar, 1997. Efecto del aumento de la temperatura y de la precipitación sobre la PPNA y la descomposición en pastos patagónicos. XVIII Reunión Argentina de Ecología, Buenos Aires, Argentina.

Rousseaux, M.C., C.L. Ballaré, A.L. Scopel, P. Searles, M.M. Caldwell and O.E. Sala, 1997. Efectos de la radiación ultravioletasolar sobre la interacción planta-insecto en un ecosistema natural de Tierra del Fuego (Argentina). XVIII Reunión Argentina de Ecología, Buenos Aires, Argentina.

Aguiar, M. R. and O. E. Sala, 1997. Recuperación de la estepa patagónica frente a cambios drásticos en la composición de formas de vida: un experimento con agregado de recursos. XVIII Reunión Argentina de Ecología, Buenos Aires, Argentina.

Aguiar, M. R. and O. E. Sala, 1997. Desertification in Patagonia: Remote sensing, modeling, and field experiments. Rangeland Desertification. International Workshop. Reykjavik, Islandia.

Sala, O.E. 1997. Primary Production in Grasslands: Patterns and Controls. Konza Prairie Dedication Ceremony, Kansas StateUniversity, Manhattan, Kansas, USA.

Sala, O.E., M. Oesterheld, E.G. Jobbágy, M.R. Aguiar, W.K. Lauenroth and I.C. Burke, 1997. Constraints of vegetation structure on the effect of precipitation on productivity. Annual Meeting of the Ecological Society of America, Albuquerque, New Mexico, USA.

Rousseaux, M.C., C.L. Ballaré, A.L. Scopel, P. Searles, M.M. Caldwell, O.E. Sala, and C. Mazza, 1997. Effects of solar UV-B on plant-insect interactions in a natural ecosystem of Tierra del Fuego (southern Argentina). Annual Meeting of the Ecological Society of America, Albuquerque, New Mexico, USA.

Jobbágy, E.G. and O.E. Sala, 1997. Regional patterns and controls of primary production in the patagonian steppe. Annual Meeting of the Ecological Society of America, Albuquerque, New Mexico, USA.

Searles, P., M.M. Caldwell, S.D. Flint, M.C. Rousseaux, C.L. Ballaré, A.L. Scopel, and O.E. Sala, 1997. Growth and reproduction in a Sphagnum and a Carex bog under naturally increased ultra-violet-B (UV-B) radiation at the southernmost tip of South America. Annual Meeting of the Ecological Society of America, Albuquerque, New Mexico, USA.

Sala, O.E., 1998. Biodiversity Scenarios. The Earth’s Changing Land: GCTE-LUCC Open Science Conference on Global Change, Barcelona, Spain.

Austin, A.T., O.E. Sala, H.A. Mooney, E.D. Schulze, J. Canadell, J. Ehleringer, R.B. Jackson, and E.G. Jobbágy, 1998. Carbon and nitrogen cycling along a contoguous precipitation gradient in Patagonia, Argentina. The Earth’s Changing Land: GCTE-LUCC Open Science Conference on Global Change, Barcelona, Spain.

Guerschman,J.P., J.M. Paruelo, and O.E. Sala, 1998. Land use in temperate Argentina:Climatic controls and impact on ecosystem functioning. The Earth’s Changing Land: GCTE-LUCC Open Science Conference on Global Change, Barcelona, Spain.

Austin,A.T., L. Handley, H.A. Mooney, O.E. Sala, E.D. Schulze, P.M. Vitousek, 1998. Patterns of delta 15N from Hawaii to Patagonia: Is there a general relationship between ecosystem nitrogen cycling and precipitation? Annual Meeting of the Ecological Society of America, Baltimore, Maryland, USA.

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Paruelo,J.M., W.K. Lauenroth, I.C. Burke, 1998. Grassland precipitation use efficiency varies across a resource gradient. Annual Meeting of the Ecological Society of America, Baltimore, Maryland, USA.

Oesterheld, M., M. R. Aguiar, J.M.Paruelo, R.A. Golluscio and O. E. Sala, 1999. El deterioro de los pastizales por sobrepastoreo. XIX Reunión Argentina de Ecología, Tucumán, Argentina.

Roset,P., O. E. Sala, and M. R. Aguiar. 1999. Respuesta de la estepa patagónica al aumento de la temperatura y la disponibilidad de agua. XIX Reunión Argentina de Ecología, Tucumán, Argentina.

Aguiar,M..R. and O. E. Sala, 1999. Estructura y funcionamiento de parches en ecosistemas áridos: una revisión sobre tigres y leopardos. XIX Reunión Argentina de Ecología, Tucumán, Argentina.

Austin, A.T. and O. E. Sala, 1999. Los efectos de las precipitaciones sobre las transformaciones de nitrógeno en la Patagonia. XIX Reunión Argentina de Ecología, Tucumán, Argentina.

Ripol, M, M.. Oesterheld, A. Godeas and O. E. Sala, 1999. Factores que regulan la asociación entre micorrizas arbusculares y las gramíneas de la Estepa Patagónica . XIX Reunión Argentina de Ecología, Tucumán, Argentina.

Guerrieri, F.M.., P. Folgarait and O. E. Sala, 1999. La fauna del suelo de una estepa patagónica. XIX Reunión Argentina de Ecología, Tucumán, Argentina.

Sala, O.E. and W.B. Batista, 1999. Biodiversity and ecosystem functioning in terrestrial and aquatic systems: differences, similarities, and interactions. Second IGBP meeting, Shonan Village, Japan.

Sala, O.E. and F.S. Chapin, 1999. Future biodiversity scenarios. XVI International Botanical Congress, Saint Louis, Missouri, USA.

Sala, O.E. and F.S. Chapin, 1999. Future biodiversity scenarios for the year 2100. Centre for Population Biology, Department of Biology, Imperial College, Silwood Park, UK.

Sala, O.E. 1999. Biodiversity and ecosystem functioning. Workshop: Biodiversity and ecosystem functioning: Empirical and theoretical analyses of the relationship. National Center for Ecological Analysis and Synthesis, University of California, Santa Barbara, USA.

Sala, O.E. 2000. Constructing biodiversity scenarios. First Meeting International Program on Ecosystem Change, Paris, France.

Sala, O.E. 2000. Forecasting Ecosystem Change. 42nd Open Executive Committee Meeting of SCOPE, Beijing China.

Sala, O.E. 2000. The role of biodiversity and climate in the functioning of ecosystems: A comparative study of grasslands, savannas, and forests. Cooperative Research Network, InterAmerican Institute for Global Change Research, PI Meeting, Miami, Florida, USA.

Sala, O.E. 2000. Linkages with the portfolio of the Scientific Committee on Problems of the Environment. The IGBP Terrestrial Futures Meeting: The future of terrestrial research in IGBP Phase II, The Royal Swedish Academy of Sciences, Stockholm, Sweden.

Austin, A.T., O.E. Sala, R.B. Jackson, N. López, and B. Méndez. 2000. Disruption of nitrification affects carbon cycling in the Patagonian shrub-grass steppe. Annual Meeting of the Ecological Society of America, Snowbird, Utah, USA.

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Robson, T.M., M.M. Caldwell, J.G. Zaller, C.L. Ballaré, O.E. Sala, and A.L. Scopel. 2000. Physiological and morphological responses of three Nothofagus species to UV-B radiation resulting from Antarctic ozone depletion in Tierra del Fuego, southern South America. Annual Meeting of the Ecological Society of America, Snowbird, Utah, USA.

Zaller,J.G. S. Flint, P. Searles, M.M. Caldwell, C.M. Rousseaux, C.L. Ballaré, A.L. Scopel and O.E. Sala. 2000. Effects of ultraviolet -B radiation on biomass allocation in a Carex fen ecosystem in Tierra del Fuego, Argentina. Annual Meeting of the Ecological Society of America, Snowbird, Utah, USA.

Pancotto, V.A., O.E. Sala, C.L. Ballaré, M.M. Caldwell, A.L. Scopel, and C. Rousseaux. 2000. Effects of long term exposure to elevated UV-B on a shrub-ecosystem in Tierra del Fuego, Argentina. Annual Meeting of the Ecological Society of America, Snowbird, Utah, USA.

Sala, O.E., M. Oesterheld, J. Vrsalovic, A.T. Austin, I.C. Burke, and W.K. Lauenroth. 2000. Spatial patterns of decomposition in the Patagonian steppe. Annual Meeting of the Ecological Society of America, Snowbird, Utah, USA.

Sala, O.E., M.R. Aguiar, R.A. Golluscio, and W.K. Lauenroth. 2000. Resource partitioning between shrubs and grasses: A removal experiment in the Patagonian steppe. All Scientists LTER Meeting. Workshop: Removal Experiments on the role of biodiversity in Ecosystem Functioning, Snowbird, Utah, USA.

Sala, O.E. 2000. Scenarios for global biodiversity. Annual Meeting Stanford Energy Modeling Forum, Climate Change Impacts and Integrated Assessment, Snowmass, Colorado, USA.

Sala, O.E. 2000. Escenarios de Biodiversidad para el año 2100. Ecología Tropical para el Siglo XXI: Simposio sobre Biodiversidad, Cambio Global y Restauración de Ecosistemas, Instituto Venezolano de Investigaciones Científicas, Caracas, Venezuela.

Sala, O.E. 2001. Escenarios de Biodiversidad para el año 2100, Facultad de Ciencias Exactas y Naturales, Universidad de Chile, Santiago, Chile.

Sala,O.E. 2001. Functional Diversity in Ecosystems, Facultad de Ciencias, Universidad de Concepción, Concepción, Chile.

Ciccorossi, E. and O. E. Sala, 2001. Cambios estructurales provocados por el pastoreo ovino en una estepa arbustiva semiárida del sudoeste de Chubut. XX Reunión Argentina de Ecología y I Reunión Binacional de Ecología, Bariloche, Argentina.

Flombaum, P., P. Cipriotti, M.R.Aguiar, and O. E. Sala, 2001. Sequía y distribución heterogenesa de la vegetación: Efectos sobre el establecimiento de una graminea patagónica. XX Reunión Argentina de Ecología y I Reunión Binacional de Ecología, Bariloche, Argentina.

Pancotto,V., O. E. Sala, C.L. Ballaré, A.L. Scopel, M.M. Caldwell, 2001. Efectos de la radiación ultravioleta-B sobre la descomposición de Gunnera magellanica en Tierra del Fuego. XX Reunión Argentina de Ecología y I Reunión Binacional de Ecología, Bariloche, Argentina.

Sala,O.E., M.L. Yahdjian, and P. Flombaum 2001. Limitantes estructurales y biogeoquímicas de la productividad primaria. XX Reunión Argentina de Ecología y I Reunión Binacional de Ecología, Bariloche, Argentina.

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Austin, A.T. and O. E. Sala, 2001. Descomposición a lo largo de un gradiente de precipitación en la Patagonia: Interacciones entre especies y precipitación. XX Reunión Argentina de Ecología y I Reunión Binacional de Ecología, Bariloche, Argentina.

Vivanco,L., A.T. Austin, and O. E. Sala, 2001.Efecto de las especies de pastizales sobre la descomposición: Hojas y raíces de gramineas norteamericanas y sudamericanas . XX Reunión Argentina de Ecología y I Reunión Binacional de Ecología, Bariloche, Argentina.

Yahdjian, M.L.and O. E. Sala, 2001. Diseño de interceptor de lluvia que permite crear gradientes de sequía. XX Reunión Argentina de Ecología y I Reunión Binacional de Ecología, Bariloche, Argentina.

Sala, O.E. 2001. El efecto de la biodiversidad sobre el funcionamiento de los ecosistemas. Universidad de Sao Paulo, Piracicaba, Sao Paulo, Brasil.

Austin, A.T., O. E. Sala and R. B. Jackson, 2001. Ecosystem-level responses to disruption of nitrification in the shrub-grass steppe of Patagonia, Argentina. International Geosphere Biosphere (IGBP) Global Change Open Science Conference, Amsterdam, Netherlands.

Perry, I. F. Chapin, O. Sala, and T. Dickey, 2001. Differences between Marine and Terrestrial Ecosystem Structures and their Sensitivities to Global Changes: Implications for Conservation Efforts. International Geosphere Biosphere (IGBP) Global Change Open Science Conference, Amsterdam, Netherlands.

Austin, A.T. and O.E. Sala, 2001. Decomposition along a precipitation gradient in Patagonia: species-rainfall interactions. Annual Meeting of the Ecological Society of America, Madison, Wisconsin, USA.

Robson, T.M., C.L. Ballaré, O.E. Sala, and M.M. Caldwell, 2001. Biodiversity of microfauna and fungal communities in a Sphagnum bog under two levels of solar UVB.Annual Meeting of the Ecological Society of America, Madison, Wisconsin, USA.

Sala, O.E. A.T. Austin and R.B. Jackson, 2001. Functional group diversity and resistance to disturbance of the nitrogen cycle in the Patagonian steppe.Annual Meeting of the Ecological Society of America, Madison, Wisconsin, USA.

Archer, S.R., W.K. Lauenroth and O.E. Sala, 2001. Thresholds and non-linear dynamics: an overview. Annual Meeting of the Ecological Society of America, Madison, Wisconsin, USA.

Sala, O.E., 2001. The role of biodiversity and climate in the functioning of ecosystems. Workshop to identify areas of scientific collaboration between the US and the AMPATH service area. Florida International University, Miami, Florida, USA.

Sala, O.E. 2001. The role of biodiversity and climate in the functioning of ecosystems: A comparative study of grasslands, savannas, and forests. Annual Report. Cooperative Research Network, InterAmerican Institute for Global Change Research, PI Meeting, Rio de Janeiro, Brazil.

Sala, O.E. 2001. Potential biodiversity change: global patterns and biome comparisons. University of Stellenbosch, Cape Town, South Africa.

Sala, O.E. 2001. Red Latinoamericana de Botánica: Logros y proyectos. Jornadas Argentinas de Botánica, Santa Rosa, La Pampa, Argentina.

Sala, O.E. 2001. Escenarios de biodiversidad para el año 2100. Reunión Anual de la Sociedad de Biología de Chile, Pucón, Chile.

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Sala, O.E. 2002. Determinants of biodiversity change: conceptual tools for building scenarios. Biodiversity Scenarios Design Meeting, Millennium Ecosystem Assessment, Port of Spain, Trinidad.

Sala, O.E. 2002. Scenarios of changes in biodiversity, ecosystem functioning, and human well-being. Linkages between biodiversity, ecosystem health and human health, Washington, DC, USA.

Sala,O.E. 2002. Biodiversity Scenarios. Stanford Energy Modeling Forum. Workshop on Climate Change Impacts and Integrated Assessment. Snowmass, Colorado, USA.

Sala, O.E. 2002. Morphological and physiological constraints on pulse utilization. Precipitation pulse use in arid and semi-arid ecosystems. University of Arizona, Tucson , Arizona, USA.

Burke, I.C., P.N. Lowe, W.K. Lauenroth, A.R. Mosier, O.E. Sala, and M.R. Aguiar. 2002. Biogeochemical consequences of resource and environmnetal manipulation in shortgrass steppe. Annual Meeting of the Ecological Society of America, Tucson, Arizona, USA.

Austin, A.T. and O.E. Sala. 2002. Nitrogen transformations along a rainfall gradient in Patagonia, Argentina: role of carbon-nutrient interactions. Annual Meeting of the Ecological Society of America, Tucson, Arizona, USA.

Sala, O.E., A.T. Austin, W.K. Lauenroth and I.C. Burke. 2002. Spatial heterogeneity and carbon cycling in the Patgaonian steppe.Annual Meeting of the Ecological Society of America, Tucson, Arizona, USA.

Robson,T.M., C.L. Ballaré, O.E. Sala, A.L. Scopel, and M.M. Caldwell. 2002. Response of a Tierra del Fuego peatland to six field seasons of UV-B radiation manipulation. Annual Meeting of the Ecological Society of America, Tucson, Arizona, USA.

Pancotto, V., O.E. Sala, M. Cabello, N. López, C. Ballaré, M.M. Caldwell, and A. Scopel, 2002. UV-B affects decomposition and decomposers in a native ecosystem in Tierra del Fuego, Argentina. Annual Meeting of the Ecological Society of America, Tucson, Arizona, USA.

Sala, O.E., 2002. Spatial and temporal controls of carbon cycling in arid and semiarid ecosystems. University of New Mexico, Albuquerque, New Mexico, USA.

Sala, O.E., 2002. Vertical water fluxes control carbon and nutrient cycling in semiarid ecosystems. American Geophysical Union, Chapman Conference, Eco-hydrology of semiarid landscapes: interactions and processes. Taos, New Mexico, USA.

Sala, O.E., 2002. Spatial and temporal controls of carbon cycling in arid and semiarid ecosystems. New Mexico State University, Las Cruces, New Mexico, USA.

Ollinger, S., and O.E. Sala. 2002. New frontiers in the study of element interactions. SCOPE Rapid Assessment Project on Element Interactions. Karolinum Charles University, Prague, Czech Republic.

Sala, O.E. 2002. Biodiversity effects on ecosystem functioning. Marine Biological Laboratory, Ecosystem Center, Woods Hole, Massachusetts, USA.

Sala, O.E. 2002. Biodiversidad y Cambio Global. Estación Experimental Chamela, Universidad Nacional Autónoma de México, Chamela, México.

Sala, O.E. 2003. The role of biodiversity and climate in the functioning of ecosystems: A comparative study of grasslands, savannas, and forests. Annual Report. Cooperative Research Network, InterAmerican Institute for Global Change Research, PI Meeting, Mendoza, Argentina.

24

Sala, O.E., 2003. Spatial and temporal controls of carbon cycling in arid and semiarid ecosystems. Colorado State University, Fort Collins, Colorado, USA.

Sala, O.E. and A.T. Austin, 2003. Spatial heterogeneity of carbon cycling in the Patagonian steppe. Cary Conference 2003, New York, USA.

Austin, A.T. and O.E. Sala, 2003. Regional variation in litter decomposition and ecosystem processing along a natural rainfall gradient in Patagonia, Argentina. Cary Conference 2003, New York, USA.

Sala, O.E., 2003. Spatial and temporal controls of carbon cycling in arid and semiarid ecosystems. Institute of Ecosystem Studies, Millbrook, New York, USA.

Sala, O.E. 2003. Biodiversity and Global Change in the Americas: Impacts on Ecosystem Functioning. InterAmerican Institute for Global Change Research, Science Forum, Boulder, Colorado, USA.

Sala, O.E. 2003. Report of the Secretary General, SCOPE 47th Open Executive Committee Meeting, Granada, Spain

Sala, O.E. 2003. Biodiversity Scenarios, Millennium Ecosystem Assessment, Global Scenarios Workshop, Copenhagen, Denmark

Adler, P.B., W.K. Launeroth, O.E. Sala, D.G. Milchunas, and I.C. Burke 2003. Functional traits and grazing resistance in graminoids of sagebrush steppe, USA and Patagonian steppe, Argentina. Annual Meeting of the Ecological Society of America, Savannah, Georgia, USA.

Sala, O.E. 2003. A 2003 Review of the GEO 2000 Future Perspectives, SCOPE/UNEP GEO 2003 Meeting, Paris, France.

Sala, O.E. 2003. Expected changes in global biodiversity and the consequences for the functioning of ecosystems. Cornell University, New York, USA.

Sala, O.E. 2004. Global biodiversity scenarios: Socio-economic and ecological drivers affecting biodiversity change in the next century. Brown University, Providence, Rhode Island, USA.

Sala, O.E. 2004. Do changes in biodiversity affect ecosystem functioning? Brown University, Providence, Rhode Island, USA.

Sala, O.E. 2004. Escenarios globales de biodiversidad. Universidad Nacional de Córdoba, Córdoba, Argentina.

Sala, O.E. 2004. The Latin American Plant Sciences Network: Its impact on capacity building in the region. University of Southern California, LosAngeles, California, USA.

Sala, O.E. 2004. Ecosystem Services. Indicators of Aggregate Ecosystem Services: Current Status, Future Options. A Meeting of the State of the Nation's Ecosystems Project. The H. John Heinz III Center for Science, Economics and the Environment, Jonsson Center, National Academy of Science, Woods Hole, MA USA.

Sala, O.E., D.D. Breshears, and L. Yahdjian. Linking ecohydrology and ecosystem functioning: from examples to current challenges 2004. Annual Meeting of the Ecological Society of America, Portland, Oregon, USA

Yahdjian, L. and O.E. Sala. Constraints of aboveground production by vegetation structure: Evidence from a water manipulation experiment in the Patagonian steppe 2004. Annual Meeting of the Ecological Society of America, Portland, Oregon, USA

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Flombaum, P. and O.E. Sala. The role of biodiversity on ecosystem functioning: A removal experiment in the Patagonian steppe, Argentina 2004. Annual Meeting of the Ecological Society of America, Portland, Oregon, USA

Austin, A.T., L. Vivanco, A. Fernández Souto, M. Gonzalez Polo, A. González-Arzac, P.I. Araujo, and O.E. Sala. Effects of aboveground diversity on belowground characteristics in natural ecosystems: Evidence from Patagonian forests 2004. Annual Meeting of the Ecological Society of America, Portland, Oregon, USA

Sala, O. E. Escenarios globales de biodiversidad 2004. XXI Reunión Argentina de Ecología y II Reunión Binacional de Ecología, Mendoza, Argentina.

Austin, A.T. and O. E. Sala, Controles del ciclo del carbono y nitrógeno en zonas áridas y semiáridas de la Patagonia. 2004. XXI Reunión Argentina de Ecología y II Reunión Binacional de Ecología, Mendoza, Argentina.

Adler, P.B., D.G. Milchunas, W.K. Launeroth, O. E. Sala, and I.C. Burke. Rasgos funcionales de gramíneas en estepas semiáridas: Evaluación de la historia de pastoreo 2004. XXI Reunión Argentina de Ecología y II Reunión Binacional de Ecología, Mendoza, Argentina.

Golluscio,R.A., A.T. Austin, O.E. Sala, M. Gonzalez Polo, G. García Martínez, and R.B. Jackson. Contenido de carbono y nitrógeno orgánicos en el suelo de la estepa Patagónica: Reducción asociada al pastoreo 2004. XXI Reunión Argentina de Ecología y II Reunión Binacional de Ecología, Mendoza, Argentina.

Yahdjian, L. and O. E. Sala. Restricciones estructurales de la productividad primaria neta en ecosistemas áridos 2004. XXI Reunión Argentina de Ecología y II Reunión Binacional de Ecología, Mendoza, Argentina.

Marchesini, V.A., O. E. Sala, A.T. Austin and G.H. Goldstein. Consecuencias ecológicas de la floración masiva de Chusquea culeou en un bosque templado de Argentina 2004. XXI Reunión Argentina de Ecología y II Reunión Binacional de Ecología, Mendoza, Argentina.

García Martínez, G., R.A. Golluscio, O.E. Sala, M. Gonzalez Polo, A.T. Austin, and R.B. Jackson. Efectos directos e indirectos del pastoreo sobre el contenido de carbono y nitrógeno edáficos en la estepa patagónica 2004. XXI Reunión Argentina de Ecología y II Reunión Binacional de Ecología, Mendoza, Argentina.

Montti, L., M. Gatti, P. Campanello, A.T. Austin, O.E. Sala, and G.H. Goldstein. Efectos de la floración masiva de un bambú monocárpico (Chusquea ramosissima) sobre la disponibilidad de recursos en el bosque Atlántico del Norte Argentino 2004. XXI Reunión Argentina de Ecología y II Reunión Binacional de Ecología, Mendoza, Argentina.

Pancotto, V., O. E. Sala, M. Robson, A. Scopel, and M.M. Caldwell. Efecto de la radiación ultravioleta-B sobre el funcionamiento de un ecosistema terrestre de Tierra del Fuego 2004. XXI Reunión Argentina de Ecología y II Reunión Binacional de Ecología, Mendoza, Argentina.

REUNIONES CIENTIFICAS NO MENCIONADAS EN PUNTOS ANTERIORES Energy Systems Modeling,1981. Organizado por Mathematical Association of America y a

cargo del Dr H.T. Odum. Salisbury, Maryland, USA. Workshop on Spatial and Temporal Variability of Biospheric and Geospheric Processes:

Research needed to determine interactions with global environmental change. 1985. Organizado por la National Academy of Sciences. St Petersburg, Florida, USA.

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Workshop on Array and Parallel Processing in Landscape Dynamics. 1986. Organizado por National Science Foundation. Pingree Park, Colorado, USA.

International Climate Change and Crop Modelling Workshop. 1990. Organizado por Columbia University y US Environmental Protection Agency. Washington, DC, USA.

Regional Global Change (IGBP) Workshop for South America. 1990. Organizado por International Geosphere Biosphere Programme. Sao José dos Campos, Sao Paulo, Brasil.

Regional Conference on Global Warming and Sustainable Development. 1990. Organizado por la Universidad de Sao Paulo y Woods Hole Research Center. Sao Paulo, Brasil.

Recent Approaches and Methods for the Sustainable Use of Land in Latin America. 1990. Organizado por SCOPE (Scientific Committee on Problems of the Environment). Santiago, Chile.

Global Change and Terrestrial Ecosystems Open Meeting (IGBP). 1991. Organizado por International Geosphere Biosphere Programme. Brighton, Inglaterra.

International Meeting on the Ecological Society of America Sustainable Biosphere Initiative. 1991. Organizado por la Ecological Society of America. Cuernavaca, Mexico.

Global Change and Terrestrial Ecosystems, Focus 2 Meeting, Change in Ecosystem Structure, 1991. Organizado por International Geosphere Biosphere Programme. Trondheim, Noruega.

Requirements for Global Scale Terrestrial Biospheric Data for IGBP Core projects, 1991. Organizado por International Geosphere Biosphere Programme, Data and Information System Office. Toulouse, Francia.

Global Change and Terrestrial Ecosystems, Scientific Steering Committee Meeting, 1991. Canberra, Australia.

Principles, Patterns, and Processes of Land Use Change: Some Legacies of the Columbian Encounter, 1992. Organizado por Scientific Committee on Problems of the Environment (SCOPE). Sevilla, España.

Workshop on Climate Change and Variability: Outlook for Cooperative Studies between European and South-American Scientists, 1992. Organizado por la Comunidad Económica Europea. Tierra del Fuego, Argentina.

Global Change and Terrestrial Ecosystems, Scientific Steering Committee Meeting, 1992. Bayreuth, Alemania.

International Global Change Conference. Organizado por el International Geosphere-Biosphere Programme, 1993. Ensenada, México.

TCM modular modelling meeting, 1993. King's College London. Sustainable Biosphere Programme (SCOPE project), Scientific Steering Committee Meeting, 1993. Santo Domingo, República Dominicana.

Transect workshop. Organizado por IGBP-GCTE, 1993. Marconi Conference Center, Marshall, California, USA.

Global Change and Terrestrial Ecosystems, Scientific Steering Committee Meeting, 1993. Tokyo, Japan.

Workshop on the effect of biodiversity on ecosystem function in grasslands. Organizado por SCOPE y UNEP Global Biodiversity Assessment, 1994. Stanford, California, USA.

Global Biodiversity Assessment, meeting of the editors. Organizado por UNEP, 1994. Buenos Aires, Argentina

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International Geosphere Bisophere Programme (IGBP), Scientific Committee Meeting, 1994. Bonn, Germany.

National IGBP Committees Meeting, 1994. Bonn, Germany. Workshop "Community, Population, and Evolutionary Responses to Elevated CO2

Concentration". Organizado por University of Basel y GCTE, 1994. Basel, Switzerland. Global Biodiversity Assessment, meeting of the editors. Organizado por UNEP, 1994. Corvallis,

Oregon, USA. America's Interhemisphere Geo-Biosphere Organization. Scientific Steering Committee Meeting,

1994. Corvallis, Oregon, USA. VI Congreso Latinoamericano de Botánica, 1994. Mar del Plata, Argentina. Organizador del

simposio "La Biodiversidad y el Funcionamiento de Ecosistemas". Global Change Research Needs: Meeting with the Funding Agencies, 1994. ICSU, Paris,

France. Global Biodiversity Assessment, meeting of the editors. Organizado por UNEP, 1994. Hilo,

Hawaii, USA. International Geosphere Bisophere Programme (IGBP), Scientific Committee Meeting, 1994.

Canberra, Australia. Global Biodiversity Assessment, meeting of the editors. Organizado por UNEP, 1995.

Washington, DC. USA. Optimal rooting depth workshop, 1995. Stanford University, Stanford, California, USA. Fourth Scientific Advisory Council for the International Geosphere-Biosphere Programme and

ICSU Forum on Earth System Research, 1995. Beijing, China. Scientific Advisory Committee Meeting of DIVERSITAS, 7-9 January 1996, Mexico City,

Mexico. Scientific Advisory Committee of the Biodiversity and Ecosystem Functioning: Soils and

Sediment, a program of the Scientific Committee on Problems of the Environment (SCOPE), 25-28 January 1996 London, UK.

Global Change and Terrestrial Ecosystems, Scientific Steering Committee Meeting, 18-22 April 1996 Bad Munstereifel, Germany

Global Biodiversity Assessment, meeting of the editors. Organizado por UNEP, 26-27 April 1996. Stanford University, Stanford, California, USA.

Large Scale Biosphere-Atmosphere Experiment, Organizing Meeting, 27-29 June 1996. Sao Jose dos Campos, Brasil.

Scientific Advisory Committee Meeting of DIVERSITAS, 18-20 July1996, Kew Gardens, London, UK.

Global Biodiversity Assessment, meeting of the editors, Organizado por UNEP, 21-24 July 1996. Washington, DC. USA

Biosphere 2, Advisory Committee Meeting, 3-6 September 1996, Oracle, Arizona, USA Global Change and Terrestrial Ecosystems: Synthesis of the Scientific Accomplishments during

the last six years,13-20 September 1996. Potsdam, Germany. Global Change and Terrestrial Ecosystems: Synthesis of the Scientific Accomplishments during

the last six years,18-20 December 1996. National Center for Ecological Analysis and Synthesis, University of California, Santa Barbara, California, USA.

A Comparative Analysis of Nitrogen Cycling in the Temperate and Tropical Americas, 2_6 December, 1996. Termas de Chillan, Chile.

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Global Change and Terrestrial Ecosystems, Scientific Steering Committee Meeting, 16-18 March 1997 Bogor, Indonesia.

Cary Conference: Successes, Limitations, and Frontiers in Ecosystem Science, 6-8 May 1997. Millbrook, New York, USA.

Effects of Global Change on Biodiversity and Ecological Complexity: A joint effort of IGBP-GCTE, EU-TERI, and Diversitas, 20-22 October 1997, University of Giessen, Giessen, Germany.

Scientific Advisory Committee Meeting of DIVERSITAS, 24-29 March 1998, Universidad Autónoma de México, Ciudad de México, México.

General Assembly of Scientific Committee on Problems of the Environment (SCOPE) and Scientific Advisory Committee of the Biodiversity and Ecosystem Functioning: Soils and Sediment, a program of SCOPE, 13-19 June 1998, Rutgers University, Piscataway, New Jersey, USA.

SCOPE workshop on “Biodiversity above and below the surface of soils and sediments: Mechanisms and implications for ecosystem stability and global change”, 12-16 October, 1998, University of Wageningen, The Netherlands.

Scientific and Technical Advisory Panel of Global Environment Facility, Integrating Science and Technology into GEF Work, 26-27 October 1998, Rio de Janeiro, Brazil.

Global Change and Terrestrial Ecosystems, Executive Committee Meeting, 22-23 November 1998, University of Reading, United Kingdom

Millennium Assessment Program Experts Meeting, 9-11 February 1999, World Bank-World Resource Institute, Washington DC, USA

Scientific Committee on Problems of the Environment (SCOPE), Executive Committee Meeting, 15-17 March 1999, Paris, France.

Reunión del Comité Científico de la Red LatinoAmericana de Botánica, 26-27 Enero del 2000, México, México.

Ecological Forecasting, National Center for Ecological Analysis and Sythesis, 15-17 October 2000, University of California, Santa Barbara, Santa Barbara, California, USA.

Biodiversity and Ecosystem Functioning: Synthesis and Perspectives, 6-9 December 2000, Ecole Normale Superieure, Paris, France.

Scientific Committee on Problems of the Environment (SCOPE), Executive Committee Meeting, 7-9 February 2001, Paris, France.

Reunión del Comité Científico de la Red LatinoAmericana de Botánica, 12-13 Marzo 2001, México, México.

Millennium Assessment First Scientific and Technical Design Workshop, 8-11 April 2001, National Institute of Public Health and the Environment, Bilthoven, Netherlands.

Diversitas, Task Force Committee Meeting, 31 August-2 September 2001, ICSU Headquarters, Paris, France.

Scientific Committee on Problems of the Environment (SCOPE), General Assembly, 23-28 September 2001, Bremen, Germany.

Millennium Ecosystem Assessment, Second Scientific and Technical Design Workshop, 8-11 October 2001, Cape Town, South Africa.

Scientific Committee on Problems of the Environment (SCOPE), Executive Committee Meeting, 5-7 May 2002, Paris, France.

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Ecological Society of America, Governing Board Meeting, 22-23 November 2002, Washington, DC, USA

Scientific Committee on Problems of the Environment (SCOPE), Executive Committee Meeting, 1-3 December 2002, Washington, DC, USA.

Millennium Ecosystem Assessment, Third Global Scenarios Workshop, 3-7 March 2003, San José, Costa Rica

Ecological Society of America, Governing Board Meeting, 16-17 May 2003, Washington, DC, USA

IPCC Expert Meeting on Terrestrial Carbon Stocks, 21-23 July 2003, Geneva, Switzerland Millennium Ecosystem Assessment, Joint Working Group Meeting, 13-17 October 2003,

Prague, Czech Republic. Ecological Society of America, Governing Board Meeting, 21-22 November 2003, Washington,

DC, USA Scientific Committee on Problems of the Environment (SCOPE), Biodiversity and Human

Health, Workshop. 8-9 December 2003, Paris, France. Reunión del Comité Científico de la Red LatinoAmericana de Botánica, 31 Marzo- 2 Abril 2004,

Sao Paulo, Brasil. Millennium Ecosystem Assessment, Joint Working Group Meeting, 25-29 April 2004,

Montreal, Canada. Scientific Committee on Problems of the Environment (SCOPE), Executive Committee Meeting,

1-2 May 2004, Montreal, Canada. OTRAS ACTIVIDADES RELACIONADAS CON LA PROMOCIÓN DE LA CIENCIA ACTIVIDADES PRESENTES Secretario General, Scientific Committee on Problems of the Environment (SCOPE), 2001-presente. Editor de la revista Global Change Biology, Blackwell Scientific, 2003-presente Miembro del comité editorial de la revista Ecosystems, Springer-Verlag, 1997-presente Miembro del comité editorial de la revista Climate Research, Inter Research Academic Publishers, 1992-presente. ACTIVIDADES PASADAS Miembro del comité científico del International Geosphere Biosphere Programme (IGBP), 1994-1996. Miembro del "Steering committee of the GCTE programme (Global Change and Terrestrial Ecosystems), a core project of the International Geosphere Biosphere Programme", 1990-1999.

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Director, “Global Change and Terrestrial Ecosystems (GCTE). Focus 4, Global Change and Ecological Complexity”, 1994-1999. Miembro del “Scientific Advisory Committee of Diversitas, An International Programme of Biodiversity Science”, IUBS, SCOPE, UNESCO, ICSU, IGBP-GCTE, and IUMS.1995-2001. Miembro del Executive Committee of Scientific Committee on Problems of the Environment (SCOPE), 1998-2001. Miembro del "Steering Scientific Advisory Committee of the Biodiversity and Ecosystem Functioning: Soils and Sediment, un programa del Scientific Committee on Problems of the Environment (SCOPE), 1995-1998. Miembro del "Steering committee of AMIGO America' Interhemisphere Geo-Biosphere Organization", 1991-1997. Miembro del Comité Científico de la Red Latino Americana de Botánica, RLB. 1999-2001. Miembro del Comité Científico de la Fundación Vida Silvestre. 2000-2004. Vice presidente de la Asociación Argentina de Ecología, 1991-1993 Presidente de la Asociación Argentina de Ecología, 1997-1999 y 1999-2001 Miembro del Consejo de Administración, Red Teleinformática Académica RETINA, 1990-1997. Miembro Comisión Asesora de Ciencias Biológicas, CONICET, 1989-1990, 1992-1993. Miembro del Cuerpo Consultivo de Ciencias Biológicas, CONICET, 1998. Editor de la revista Vegetatio, Kluwer academic publishers, 1990-1996 Miembro del Comité Editorial de la revista Global Change Biology, Blackwell Scientific, 1994-2003 Presidente de la Red Latino Americana de Botánica, RLB.2001-2004 Miembro del comité editorial de la revista Oecologia, Springer-Verlag, 1994-2004 Miembro del “Governing Board” de la Ecological Society of America, 2002-2004

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