Verhandlungen derGesellschaft furOkologie

CD

Band 36Vol. 36

Abstracts of the talks and posters presentedat the 36th Annual Conference of the Ecological Societyin Bremen, September 11 - 15, 2006.

Edited on behalf of the Gesellschaft fur Okologie /Ecological Society of Germany, Austria and SwitzerlandbyThomas S. Hoffmeister and Martin Diekmann

Bremen 2006

Bremen

Contents

Preface xxvii

List of Symposia and Convenors xxviii

Keynote Lectures xxx

Symposium 01: Global Change Ecology 1

Climate change disrupts the synchrony in food chain phenologyM.E. VlSSER 2

Some like it hot: Voltinism patterns of Gomphus vulgatissimus under the influence ofclimate change

E. BRAUNE,D. SONDGERATH, F. SUHLING,O. RICHTER 3

Interspecific comparative analyses of demographic responsiveness to climaticvariability: seabirds as a model system

H. SANDVIK 4

From ecological field observations to physiology and back - explaining fieldobservations from physiology?

R. KNUST, C. BOCK, G. LANNIG, F. SARTORIS, H.O. PORTNER 5

Global change in Antarctic pelagic ecosystems: Effects of bottom-up regulation (ironfertilisation) and top-down control (krill-salp interactions) on plankton biomass

U. BATHMANNETAL 6

Water temperature and mixing depth in late winter affect seasonal succession of theplankton

S. DIEHL, S.A. BERGER, H. STIBOR, G. TROMMER, M. RUHENSTROTH 7

The role of fish in the Antarctic food web - implications for food web vulnerability toenvironmental change and perturbation

K. MINTENBECK, T. BREY, U. JACOB, R. KNUST 8

Growth or defence: Performance of Populus spec, under changing environmentalconditions

Z. Luo, C. CALFAPIETRA, L. PIETROSANTI, E. EENSALU, A. POLLE 9

Effects of simulated environmental change on epidermal UV-B transmission andconcentration of phenolic compounds in three alpine plant species

L.NYBAKKEN,K. KLANDERUD, 0. TOTLAND 10A species rich alpine pasture under the combined effects of increased atmosphericozone and nitrogen deposition

M. VOLK, S. BASSIN.N. BUCHMANN, J. FUHRER 11

Effects of elevated atmospheric CO2 concentrations on carbon turnover processes in anagro-ecosystem

K. HEIDUK, A. PACHOLSKI, R. MARTENS, H.-J. WEIGEL 12

Effect of nitrogen deposition reduction on biodiversity and carbon sequestrationG.W.W. WAMELINK, H.F. VANDOBBEN, IP. MOL-DIJKSTRA, E.P.A.G.SCHOUWENBERG, H. KROS, W. DE VRIES, F. BERENDSE 13

Impact of climate change on annual plant communities in the eastern MediterraneanJ. METZ, K. TIELBORGER 14

Estimating extinction probabilities of annual plant species under climate change: anexperimental approach

C.LAMPEI, K. TlELBORGER 15Projecting ecosystem response to climate extremes

A. RAMMIG, A.M. JONSSON, B. SMITH, L. BARRING, M. SYKES 16Semi-arid grazing systems under climate change - present model shortcomings andways to handle them

B.TIETJEN,F.JELTSCH,E. ZEHE 17Impacts of topography and landuse on vegetation dynamics and hydrological processesin a semi-arid environment

A. POPP, M. VOGEL, A. GROENGROEFT, F. JELTSCH 18Drought effects in temperate grasslands: An experiment in three Swiss grasslands atdifferent altitudes

A.K. GlLGEN, M. SCHERER-LORENZEN, N. BUCHMANN 19Influence of drought stress to the root hydraulic system of different age stages ofFagussylvatica and Quercus petraea

B. REWALD, C. LEUSCHNER 20Opposite trends of performance in the life cycle of annual plants caused by dailyprecipitation variability

M. KOCHY, F. JELTSCH 21Proline accumulation in leafs, shoots, and roots of young trees after different irrigationregimes

B. REWALD, C. LEUSCHNER 22-1.5 MPa - The universal permanent wilting point?

B. REWALD, J. SCHUMANN, C. LEUSCHNER 23Elevated atmospheric CO2 - consequences for wheat grain quality and human nutrition?

P. HOGY, B. BREUER, M. ERBS, P. KOHLER, K. SCHWADORF, S. WEBER, H. WIESER, A.FANGMEIER 24

Effects of elevated atmospheric CO2 concentration on minerals and energy content ofwheat and associated weeds

G. BERMEJO, K. BECKER, P. HOGY, A. FANGMEIER 25Long-term effect of fen-restoration on the C-balance and the GWP-balance

M. DROSLER, L. BERGMANN, A. FREIBAUER, H.F. JUNGKUNST, R. SCHULTZ, B.S.HOLL, S. FIEDLER 26

Impact of climate change on the coastal flora of N-GermanyD. METZING 27

Changes in plant species composition following a climatic gradient in West AfricaM. SCHMIDT, A. OUEDRAOGO, A. THIOMBIANO, K. HAHN-HADJALI, G. ZIZKA, R.

WITTIG 28Climatic gradients and ecosystem functioning at a deserts margins and theirconsequences for the impact of climate change

M. VESTE, T. LITTMANN, S.-W. BRECKLE, A.. YAIR 29Consequences of climate change for stocking rates of sheep and goats in theMediterranean

M. MATHAJ,F. JELTSCH ETAL 30Species distribution models for the ptarmigan (Lagopus mutus) at two different scales inthe Swiss Alps and the effect of global change

R.REVERMANN,N.ZBINDEN,H. SCHMID,B. SCHRODER 31

Species distribution modelling and predictions on future habitat suitability for blackbirdand ring ouzel in Switzerland

J. VON DEM BUSSCHE, R. SPAAR, H. SCHMID,N. ZBINDEN,B. SCHRODER 32

Feeding responses of the pelagic tunicate Salpa thompsoni to an iron inducedphytoplankton bloom in the Southern Polar Frontal Zone (EIFEX)

L. VONHARBOU, I. PEEKEN,U. BATHMANN, S. JANSEN, S. KRAGEFSKY 33Sealing Carbon and Life in the Ecotron (SCALE)

A. MILCU, P. MANNING, A. HEINEMEYER, H. VALLACK, P. INESON 34Effects of increasing drought on choice of commercial forest trees in Bavaria

C. ZANG, A. ROTHE, H. PRETZSCH 35

Symposium 02: Multitrophic Interactions 36

Multitrophic interactions: Past, present, and futureG.B.DEDEYN 37

Plant response to multiple herbivore attackS. WURST, W.H. VANDERPUTTEN 38

Habitat structure and chemical diversity: How host and non-host plants affect anherbivore - parasitoid interaction

B. RANDLKOFER, T.MEINERS, E. OBERMAIER 39

Effects of secondary plant products on the feeding behaviour of termites - a behaviouraland neurophysiological approach

S. GROSS, M. KAIB, G. HARDIESS, S. MDCUS,K. FEHLER, W. FRANCKE 40

Evolutionary arms race between fungi and insectsA. VlLCINSKAS ' • 41

Earthworms and litter decomposition inA. MILCU, S. PARTSCH, S. SCHEU 42

Influence of fungivorous soil invertebrates on the seed bank persistence of grasslandspecies under field conditions

N. MlTSCHUNAS, J. FlLSER 43Characteristics of soil fungi affecting the predation by Collembola

J. BOLLMANN, M. ELMER, J. WOLLECKE, R.F. HUTTL 44

Top-down control of herbivorous nematodes by soil microorganisms in coastal sanddunes

A.M. PISKIEWICZ, W.H. VANDERPUTTEN 45

Fatty acids as biomarkers - a new tool for decomposer food web studiesL. RUESS,D. HAUBERT,M.M. HAGGBLOM, S. SCHEU 46

Impact of plant colonizing soil fungi on the invasive root feeding herbivore Diabroticavirgifera virgifera mediated via the host plant

J. MOESER, S. VlDAL 47Predator diversity drives pair-wise interaction strength and trophic cascades in a naturalfood web

S.B. OTTO,U. BROSE 48

Dealing with high predation risks: How aphid parasitoids interact with aphid predatorsR. MEYHOFER 49

Prey and predator spectra of the flower-dwelling crab spider species Misumena vatiaand consequences for seed set

R. BRECHBUHL, S. BACHER 50Consequences of microhabitat diversification on agrobiont generalist predators

K. BIRKHOFER, D.H. WISE, S. SCHEU 51

Microbial diets in a host parasitoid interaction - quality or quantity?M. DORSCH, M. ROHLFS 52

Variable response in host habitat selection - do parasitoid mothers know what they do?J. STARK, M. ROHLFS 53

Multitrophic interactions between red spider mites and coffee infested with leaf minersand rust pathogens, linking preferences to reproduction

A. TEODORO, A.-M.~ KLEIN, T. TSCHARNTKE 54Structure and diversity of host and non-host plants influence herbivore oviposition, eggparasitism and larval development: A test of the preference-performance hypothesis

E. MULLER, T. MEINERS, H.J. POETHKE,B. RANDLKOFER, E. OBERMAIER 55Host plant finding in the specialized leaf beetle Cassida canaliculata - an analysis ofsmall-scale movement behavior

A. HEISSWOLF, S. ULMANN, E. OBERMAIER, O. MITESSER, H.J. POETHKE 56Direct costs of resistance to parasitoid attack in Drosophila larvae - the ecology matters!

M. ROHLFS 57What is the price of a plant's direct defences?

A. STEPPUHN, I. BALDWIN 58Effects of plant genotype on tritrophic interactions

A. KEMPEL, R. BRANDL, M. SCHADLER 59

Pollinator diversity and plant-pollinator interaction in a gradient of plant speciesdiversity

A. RICHTER, A.-M. KLEIN, T. TSCHARNTKE, W. WEISSER 60Influence of the structure of decomposer fauna on an artificial plant community

M. SCHADLER, A. LINDFELD, C. SCHELLHORN, R. BRANDL 61Interactions between saprophytic fungi and fungivorous microarthropods in thebelowground system

S. STAADEN, S. SCHEU 62Down from the top: honey dew as a carbon source for soil organisms

J. SEEGER, J. FILSER 63

Do different plant traits promote dissimilar soil decomposer communities?C.WITT.H. SETALA 64

You are what you eat - but for whom are you meat? Insights from a complex marinenetwork

U. JACOB, U. BROSE, T. BREY 65

Field specificforecasting models based on pheromone trap catches - The prediction ofspinach infestations by caterpillars of the silver Y moth (Autographa gamma)

T. KLUG,T.S. HOFFMEISTER, R. MEYHOFER 66How arthropods can help explaining the ecological function of secondary metabolism infungi

M. ROHLFS, M.ALBERT, N.P.KELLER, F.KEMPKEN 67

Effects of root herbivory on aboveground multitrophic insect interactions: A field studyS.V. SCHAPER,R. SOLER,J.A. HARVEY, T.S. HOFFMEISTER 68

Symposium 03: Cognitive Ecology 69

Cognitive ecology of finding ones way and getting at resourcesY. WINTER : 70

Bat Time Stories - Foraging on spatio-temporally predictable resourcesU. TOLCH, Y. WINTER 71

VII

Male orchid bees as master perfumers: How to put together species-specific fragrancebouquets from unpredictable sources?

T.ELTZ 72

Cognitive ecology : how territorial songbirds gather information about each otherM. NAGUIB 73

A closer look at searching behavior on patches - why do animals leave when theyleave?

C.DIECKHOFF,T.S. HOFFMEISTER 74

Contrasting signals: How parasitoids deal with conflicting environmental informationT.MEINERS, A. WERKHAUSEN 75

Long-term effect of decision-making on male bumblebees (Bombus terrestris)T. SEIFAN, Y. KAREEV, U. MOTRO 76

The evolution of learning ability in Drosophila melanogaster - a double selectionexperiment

M. KOLSS, T.J. KAWECKI , 77

Ecological memory: Potential adaptations of memory formation to host distribution inparasitic wasps

J.L.M. STEIDLE, J. COLLATZ, D. SCHURMANN 78Foraging in risk-homogeneous landscapes

J. ECCARD, T. LlESENJOHANN 79Selective information use in parasitoid wasps

A. THIEL,T.S. HOFFMEISTER ..80

Patch quality assessment from a distance - the response of Venturia canescens to patchodours

Y. Liu, A. THIEL,T.S. HOFFMEISTER 81

The decision to help - a question of gender? Altruism in humansK.M. HALLER,B. DORR,N. FISCHER, S. HARDENBERG,T.S. HOFFMEISTER 82

Symposium 04: Gene Ecology and Risk Analysis 83

Biotechnology in agriculture - it may not be popular but we may need it in EuropeB.R. JOHNSON : 84

How modelling of crop-to-crop gene flow in Maize can help to manage co-existenceK. LlPSIUS, M. LANGHOF, R. WlLHELM, G. RUHL, K. SCHMALSTIEG, O. RlCHTER 85

Standardisation of GMO pollen monitoringF.HOFMANN 86

Effects of Bt-corn on the soil macro- and mesofaunaL.HONEMANN, W. NENTWIG 87

Uptake, ingestion and excretion of Bt-toxin by earthworms (Lumbricus terrestris) andslugs (Arion lusitanicus, Deroceras reticulatum)

C. ZURBRUGG, W. NENTWIG 88Stepping stones for gene flow from cultivated oilseed rape (Brassica napus L.)

B.ELLING, W. BLEEKER,B.NEUFFER 89

Genetic tradeoff as a model for parapatric speciationO. JAKOBY, P.A. WHIGHAM 90

The risk of introgression of foreign genes in Populus spec. - Differences in theflowering phenology of P. nigra and P. x canadensis

M. NIGGEMANN, G. RATHMACHER, R. BIALOZYT 91

The development of a genetic hybrid poplar registerG. RATHMACHER, M. NIGGEMANN, B. ZIEGENHAGEN, R. BIALOZYT 92

VIM

Genetic diversity and colony densities of the Common Carder Bee Bombus pascuorumin differentially structured landscapes

F. HERRMANN, C. WESTPHAL, R.F.A. MORITZ, I. STEFFAN-DEWENTER 93

Conservation of domestic poultry breeds in Georgia and creation of gene banksK. NADIRADZE, L. DJIKIA 94

Symposium 05: Habitat Fragmentation 95

Effects of the past on forest plant species diversity & composition in the context of ahistory of fragmentation

M. HERMY 96

Habitat size and landscape diversity affect wild bee communities in fragmentedcalcareous grasslands

B.MEYER,I . STEFFAN-DEWENTER 97

No evidence of a plant extinction debt in highly fragmented calcareous grasslands inBelgium

D. ADRIAENS, O. HONNAY, M. HERMY 98

Human impact, seed dispersal, seed predation and regeneration of a tropical rainforest inKenya

N. FARWIG, K. BOHNING-GAESE 99

Fragments of woodland habitats as remnants of natural biodiversity in the urban areas ofthe city of Bremen - structural diversity as a key factor

K. NUSSEL,P. SCHAFFER, D. ZACHARIAS 100Short term transfiguration of matrix into hospitable habitat facilitates gene flow andcircumvents fragmentation

N. BLAUM,M. WICHMANN,E. ROSSMANITH 101

Comparison of wind and external animal dispersal for species with fragmented habitatsH. WILL, O. TACKENBERG 102

Edge effects dominate hydrological processes in fragmented woodlandsM. HERBST, J.M. ROBERTS, D.J. GOWING .• 103

Habitat size, isolation, and quality determine the distribution of a monophagous leafbeetle and its egg parasitoid in a fragmented landscape

A. HEISSWOLF, S. REICHMANN, E. OBERMAIER, B. SCHRODER, H.J. POETHKE 104

Habitat fragmentation in an urban environment - ecological consequences for epigeicbeetle communities

R. DEICHSEL 105

Adaptive immune gene variability determines population healthY. MEYER-LUCHT, S. SOMMER 106

Are ancient forests ecologically fragmented by surrounding semi-natural spruce stands?M. MANEGOLD, A. BOGENRIEDER 107

Comparing species diversity in urban and rural protected areas in a Central Germanlandscape

S. KNAPP, I. KUHN, V. MOSBRUGGER, S. KLOTZ 108Genetic structure of peripheral and central populations of three endangered floodplainviolets

R.L. ECKSTEIN, A. OTTE 109

Do seed and germination traits determine distribution patterns of floodplain pioneerspecies?

S. PROSS, I. LEYER 110

Plant-insect-interactions in the two rare heathland species Genista anglicah. and G.pilosa L.: Balancing habitat fragmentation effects

M. TSALKI,M. DlEKMANN I l lChanges in population size of four endangered river corridor plants in relation to habitatfragmentation and habitat quality

C. WINTER, M. DIEKMANN 112Factors influencing the spatial distribution of forest plant species in hedgerows ofNorth-western Germany

S. WEHLING,M. DIEKMANN 113Arrangement of two subpopulations of Chorthippus parallelus in an intensively usedagricultural landscape

A. WERZNER, S.HOLZHAUER,A.-C. SANDER, V. WOLTERS 114Dispersal and genetic diversity of Vallonia excentrica (Gastropoda; Stylommatophora)in two differing agricultural landscapes

M. PRETZSCH,A.-C. SANDER, V. WOLTERS 115The impact of local spatial resistance (LSR, 'Raumwiderstand') on the dispersal ofTenebrio molitorh.

F.JOPP 116

Symposium 06: Biodiversity on Different Spatial Scales 117

Patterns of alpha- and beta-diversity along the pH gradient in semi-natural woodlands ofNW-Germany

C. PEPPLER-LISBACH 118Plant community response to interacting disturbances

K. SCHIFFERS,F. JELTSCH,K. TIELBORGER 119Coexistence in highly diverse shrublands - the potential role of plant speciesregeneration

E. MOSNER,N. ENRIGHT,F. JELTSCH 120Relationship between herb layer and tree layer diversity in deciduous forests

A. MOLDER, W. SCHMIDT 121Effects of local and landscape factors on plant species richness in contrasting grasslandmanagement regimes

S.KLIMEK,L.MARINIETAL 122Scale dependence of bioindicators: Patterns of vegetation and hydrology within springs

C. ZANG;V. AUDORFF,C. BEIERKUHNLEIN 123Factors influencing relative abundance distributions

M. OLLK, W. ULRICH 124Arctic coastal biodiversity: A multi-scale challenge at the terrestrial-marine interface

C.B.COGAN 125Niche partitioning of sympatric cheirogaleid lemurs in the littoral rainforest of south-east Madagascar

P. LAHANN 126Spatio-temporal patterns and their drivers in the vegetation of a transitional ecosystem -issues of distance and scale

G. JURASINSKI, C. BEIERKUHNLEIN 127Performance of forest plant species beyond their range edges: an experimental approach

S. VAN DER VEKEN, K. VERHEYEN,M. HERMY 128Dispersal limitation of plant diversity in grassland ecosystems and its consequences forproductivity

C. STEIN,H. AUGE,M.FISCHER,D.PRATI 129Effects of land-use changes on biodiversity in the Eastern Alps

E. TASSER, U. TAPPEINER 130Habitat-specific dependence of local grasshopper diversity on surrounding landscapepatterns

M. DICHT,M. SCHMIDT, S. BACHER 131Impact of landscape matrix on spider diversity in oilseed rape fields at different spatialscales

T. DRAPELA, D. MOSER, J.G. ZALLER, T. FRANK 132

Relative importance of landscape effects on biodiversity in different habitat typesCH. OBRECHT,M. SCHMIDT, S. BACHER 133

Biodiversity of fungus growing termites: a molecular approachM.KAIB,F .HYODO,R.BAGINE,R. BRANDL 134

Efficacy of different methods to assess pollinator diversity and densityC. WESTPHAL, R. BOMMARCO, E. LAMBORN, T. PETANIDOU, S.G. POTTS, S.P.M.ROBERTS, H. SZENTGYORGYI, B.E. VAISSIERE, M. WOYCIECHOWSKI, I. STEFFAN-DEWENTER 135

Biodiversity-productivity patterns - What are the best traits to describe trophicalgradients?

N. HOLZEL, T. DONATH, S. BlSSELS, A. OTTE 136Shallow soil and low nutrient availability increase yield effects in mixtures of fourcommon grassland species

S. VON FELTEN, N. BUCHMANN, A. HECTOR, P. NKLAUS, M. SCHERER-LORENZEN, B.SCHMID 137

Effects of plant species diversity on individual plant performanceA. SCHMTDTKE,T.ROTTSTOCKETAL 138

Effects of tree species diversity on soil properties in a Central-European deciduousforest

M. BRAUNS, A. GUCKLAND, F.M. THOMAS, H. FLESSA 139

Population genetics of the spring-dwelling caddis fly Agapetus juscipes (Trichoptera:Glossosomatidae) on a regional scale

A. MARTEN, M. BRANDLE, F. FISCHER, R. BRANDL 140Geographic variation within and between populations of the termite Macrotermesmichaelseni

R. BRANDL, M. HACKER, J.T. EPPLEN, M. KAIB 141Linking spatial population models of selected species to a large-scale vegetation modelfor the southern Kalahari

F.L ANGER WISCH,E.ROSSMANITH,N.BLAUM,F. JELTSCH 142

Diversity of specialist and generalist beetles in grasslands: comparing factors at local,landscape and regional scales

P. BATARY, A. BALDI, G. SZEL, A. PODLUSSANY, I. ROZNER, S. ERDOS 143Small scale diversity in isolated grasslands enclosed in forest

S. ABOLING 144Vegetation-environment relationships in a heavy metal-dry grassland complex

T. BECKER, M. BRANDEL 145Extensive grazing influences diversity: How do heterogeneity and vegetation structureaffect composition of spider communities?

E. OBERMAIER, H.J. POETHKE, B. SCHRODER 146Influence of sown wildflower areas on spiders in wheat: from local to landscape scale

J. DOEBELI, M.H. SCHMIDT 147Effect of small-scale disturbances on grassland community dynamics along aproductivity gradient - molehills as a case study

M. SEIFAN,D. SCHLOZ-MURER, K. TIELBORGER 148The role of plant pathogens for the relationship between plant species diversity andecosystem processes

T. ROTTSTOCK, A. SCHMIDTKE, V. KUMMER, M. FISCHER 149

Dependence of productivity and nutrient relations on composition of forest canopy_M.BRAUNS,F.M. THOMAS 150

Trends in biodiversity, biotic interactions and biogeochemical cycles due to tree speciesdiversity in a Central-European deciduous forest

I. SCHMIDT, H.F. JUNGKUNST, M. BRAUNS, K.M. DAENNER, N. FAHRENHOLZ, C.FORNAQON, T. GEBAUER, J. GOLLISCH, A. GUCKLAND, C. LANG, C. MEINEN, A.MOLDER, S. RAJMIS, S. SOBEK,U. TALKNER,F.M. THOMAS,C. LEUSCHNER 151

Structure and diversity of understorey vegetation in deciduous forests with contrastingtree species diversity

A. MOLDER, W. SCHMIDT 152Tree species richness as a driver for arthropod diversity in the canopy of a temperatedeciduous forest

S. SOBEK, I. STEFFAN-DEWENTER, T. TSCHARNTKE 153The fine root system of deciduous forests with contrasting tree species diversity in theHainich National Park (Thuringia)

C. MEINEN, D. HERTEL, C. LEUSCHNER 154Fine root identification at species level in Central European mixed forests

C. MEINEN, B. REWALD, D. HERTEL, C. LEUSCHNER 155Is diversity of mycorrizal communities related to the diversity of tree species?

C.LANG, A. POLLE 156FTIR - a new tool to identify ectomycorrhizal species

R. PENA, A. NAUMANN, C. LANG, A. POLLE 157Scales crossing dependency of ectomycorrhizal distribution pattern

J. WOLLECKE, S. GEBHARDT, R.F. HUTTL 158Plant species richness of the central European landscape on different spatial scalesmeasured with a new approach

J. DENGLER, M.-A. ALLERS 159Relations between diversity and realized niches of trees — a comparison between Europeand Eastern North America

M. MANTHEY 160Exploring biodiversity patterns in tropical montane forest vegetation data by nonlineardimensionality reduction

M. MAHECHA, A. MARTINEZ, G. LISCHEID, E. BECK 161Tidal marshes in the Elbe estuary - diversity and productivity shifts along a salinitygradient

.. J.G. ENGELS,K. JENSEN 162Testing competition and (co-)existence of plant functional types: ranking of life historystrategies by modelling

A. ESTHER, J. GROENEVELD, F. JELTSCH, N. ENRIGHT, B.P. MILLER, B. LAMONT .... 163Home field advantage or benefit from being different? Invasion processes in abiodiversity experiment

J.S.PETERMANN,A.J. FERGUS, B. SCHMID 164

XII

Spatial diversity revisited - a terminological conceptV.RETZER 165

Factors generating the shape of species - area relationshipsM. MICHALAK, W. ULRICH 166

Evolution of the agro-ecosystem mosaic in the Emilia-Romagna lowlandM. GENGHTNI,L. BONAVIRI 167

Parasite communities in the bivalve Cerastoderma edule along a latitudinal coastalgradient in Europe

M. KRAKAU, M. BAUDRIMONT, H. BAZAIRI, M. COTTET, L. DABOUINEAU, X. DE

MONTAUDOUIN, C. DESCLAUX, M. GAM, P. GONZALEZ, K.T. JENSEN, F. JUDE, G.LASSALLE, S. PINA, N. RAYMOND, K. REISE, F. RUSSELL-PINTO, D. W. THIELTGES, C.

PAILLARD 168

Symposium 07: Long-term Studies in Ecology 169

Long-term ecosystem dynamics in the Serengeti: lessons for conservation and humanwelfare

A.R.E. SINCLAIR 170Gap dynamics in natural spruce forests - a long-term study using aerial photographs

S. KAMMERMEIER, H. BRUELHEIDE 171

Differential changes (1967 — 2005) in soil acidity and understory community driven byforest management

H. VAN CALSTER, K. VERHEYEN, A. DE SCHRIJVER, L. BAETEN, L. DEKEERSMAEKER,

M. HERMY 172

Long-term vegetation changes in a south Swedish deciduous forestG. VON OHEIMB, J. BRUNET 173

Nitrogen cycling in a N-saturated forest ecosystem (Hoglwald). Results of monitoringand experimental manipulations since 1984

C. HUBER, W. WEIS, A. GOTTLEIN 174

Long-term development of macrozoobenthic communities in the German Bight (NorthSea): Climatic forcing and anthropogenic impacts

A. SCHROEDER, E. RACHOR 175

Phytoplankton in the DarB-Zingst bodden chain - 13 years of remesotrophicationR. SCHUMANN, U. KARSTEN 176

Long-term monitoring of grassland ecosystems in SW Germany. Influence ofsuccession,-mowing and mulching on nutrient dynamics

U.B. FREISINGER,H.-J. BRAUCKMANN, G. BROLL,K.-F. SCHREIBER 177

Thirty-six years of old field succession: from arable fields to forestM. DOLLE, W. SCHMIDT 178

Long-term research, a must for soil ecologyH. KOEHLER, V. MELECIS 179

Cycling dynamics of a high arctic vertebrate community as assessed by a long termstudy in North-East Greenland

B. SlTTLER, O. GlLG 180Plant species and biotopes of salt marshes at the upper part of the brackish water of theRiver Elbe - long term study over 12 years

C. HORR, D. ZACHARIAS .: 181

Loss of phytodiversity by eutrophication r- a long-year study in deciduous forests of theWeser-Ems region (NW Germany)

R. BUCHWALD, D. GlGANTE, J. POHLKER, G. SCHMIDT 182

XIII

Long-term investigations of soil microbial eco-physiological quotients (Cmic-to-Corgratio, qCO2) of forest stands in Lower Saxony

T.-H. ANDERSON 183

Linking aboveground biodiversity with belowground processesJ. HAASE, H. AUGE, F. BUSCOT, A. CHATZINOTAS, C.F. DORMANN, B. KIESEL, S.

KLEINSTEUBER, U. LANGER, H.-U. NEUE, H. SCHULZ, F. STANGE, D. PRATI 184

Okologische Differenzierung und Wandel der Wiesengesellschaften WestkretasS. ABRAHAMCZYK, E. BERGMEIER 185

Wachsende Systeme als Ursache von UmweltproblemenK. ALBRECHT 186

Long-term development and inter-annual variability of zooplankton in a coastal lagoonM. FEIKE, R. HEERKLOSS, F.M. HILKER 187

Symposium 08: Miscellaneous 188

Chances and risks of nanoparticlesM. SCHAEFER 189

Positive effects of nanosilica on two species of GraminaceaeE.G. DUDEL ET AL 190

Assessment of biomarker responses in demersal fish from the northern Iberian shelf:Case of the Prestige oil spill

C. MARTINEZ-GOMEZ, J. BENEDICTO, J.A. CAMPILLO, B. FERNANDEZ, J. VALDES , I.

GARCIA, F. SANCHEZ 191

Relationship between fungal community structure and water geochemistry based on amethodologically combined approach

M. SOLE, I. FETZER,R. WENNRICH, K.R. SRIDHAR, G. KRAUSS 192

A new method for studying homeranges in scavenging birdsS.R0SNER,N. SELVA 193

Influence of antibiotics from pig slurry on the microbial N transformation in agriculturalsoils

A. KOTZERKE, S. SHARMA, B.-M. WlLK, M. SCHLOTER 194Biodiagnostic techniques on blue mussels {Mytilus edulis) as site-selection criteria foroffshore farming

M. BRENNER, A. KOHLER, B.H. BUCK 195

Lysosomal changes in digestive gland of caged North Sea blue mussel {Mytilus edulis)as a biomarker to assess the water quality along an offshore inshore gradient

J. BRESSLING, A. KOEHLER 196

The role of parasite diversity in ecosystem functioning - macroparasites in molluscs ofthe European Wadden Sea

D.W. THIELTGES 197

Isolation and structural characterization of haptoglobin from harbour seals {Phocavitulina) for the evaluation of its potential as indicator of marine mammal health

V. HELLWIG, B. ERBSLOH, U. SIEBERT, A. PRANGE 198

Seed germination of Bothriospora corymbosa after gut passage in Triportheusangulatus in Central Amazonian floodplains

P.PAROLIN, L.A. MAIA, L.M. DOS SANTOS 199

Group living benefits growth under stress in bacteriaH. PEITZ, G. VELICER 200

Towards dissecting the roles of endo- and ectomycorrhizal fungi for P- and N-acquisition in Douglas fir

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T. Ducic, D. BERTHOLD, F. BEESE, A. POLLE 201

Alternative approaches for the protection of oilseed rape from slug herbivoryT. FRANK, M. BARONE,N. ESCHER, J. FRIEDLI,F.OBERHOLZER 202

Gone with the wind: Ballooning propensity of spiders from dynamic and stable habitatsK. STAMPFLI, M.H. SCHMIDT 203

Seasonal and regional variation in the diet of the Lesser Horseshoe Bat {Rhinolophushipposideros)

N. MITSCHUNAS, M. WAGNER 204

Extinction and recolonisation of the Raven {Corvus corax) in Middle EuropeS. ROSNER, D. CIMIOTTI, J. MEYER, R. BRANDL 205

Young modellers in ecology (YoMo)B. TlETJENETAL 206

Lipofuscin accumulation and protein carbonyl content in the tissue of the ocean quahogArctica islandica

J. STRAHL, D.ABELE, T. BREY, A. KOHLER-GUNTHER, E. PHILIPP 207

The effects of anthropogenic toxins on reproductive processes in the sea urchinPsammechinus miliaris

S. SCHAFER, A. KOHLER 208

Symposium 09: Modelling 209

Predicting habitat availability of floodplain forest species after dyke relocationT. ANASTASIADES,B. WAWRA, C. REUDENBACH, R. BIALOZYT, I. LEYER 210

How could future climate and land use change affect the distribution of mountainmeadow plant species in Saxony?

O. PURSCHKE, C.F. DORMANN.D. HAASE, S. TISCHEW 211

Modelling effects of land use on spatial ecology, energy budgets and populationviability in the ladybeetle Coccinella septempunctata

F.J.J.A. BlANCHI, W. VAN DER WERF, A. HONEK 212Correcting the bias of randomization algorithms

P. HARMAND 213

Plant traits and the environment - a new way to create plant functional groupsincorporating synergistic effects of plant traits using a null model

D.KRUGER 214

Adapting the Akaike's Information Criterion for Individual Based Model selectionC. Piou, U. BERGER 215

Temporal and spatial dynamic in abandoned chestnut coppice forestsJ. VOGT,P. FONTI,M. CONEDERA,B. SCHRODER 216

Variation in pollen-mediated gene flow across years in Quercus petraeaJ. BUSCHBOM, A. KONIG, B. DEGEN 217

Spatially explicit probabilistic modelling of phytodiversity in rural landscapesR. WALDHARDT, D. SIMMERING, A. OTTE 218

Applying Wavelet Transform to Point Pattern Analysis: An application to plant ecologyJ.M.B.PROTAZIO, U. BERGER 219

What is the precision of a p-value - or how many iterations are necessary for a nullmodel analysis

V. LEHSTEN, P. HARMAND 220

Symposium 10: Spatial and Temporal Variation in Plant-Animal Interactions.. 221

Perception of field and landscape parameters by three insect pest species in oilseed rape

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T. FRANK, D. MOSER, C. URL, T. DRAPELA, J.G. ZALLER 222Direct and indirect effects of landscape structure on pollinators and herbivores

T.DIEKOTTER,K.J. HAYNES,D. MAZEFF A, T.O.CRIST 223

Habitat loss and the structure of plant-animal mutualistic networksM.A. FORTUNA, J. BASCOMPTE 224

Ecological networks and sensitivity to sampling effortA. NIELSEN, J.BASCOMPTE 225

Spatial variation in the interactions between a perennial herb and its specialistherbivores: potential for coevolution?

R. LEIMU, M. RIIPI, A. MUOLA, L. LAUKKANEN, P. MUTDCATNEN 226

Spatio-temporal dynamics in a tritrophic plant-seed predator-parasitoid system, a four-year study

H. VONZEIPEL,J. EHRLEN 227Host plant selection by gall midge: Effects of landscape characteristics, plant ploidylevel, plant population structure and plant characteristics

L. ARVANITIS, C. WKLUNDETAL 228

Small-scale spatial patterns and the effects of nectar production rates on pollinatorservice

P.G.L.KLINKHAMER,K. LEISS 229

Spread of an annual myrmecochore: simulation-model predictions and long-term fielddata

T.HEINKEN,E. WINKLER 230Modelling vegetation change caused by elephants around waterholes in the EtoshaNational Park, Namibia

M. FRANZ, J. GROENEVELD, W. KILIAN, S. KRAMER-SCHADT, C. WISSEL 231

Comparison of secondary chemistry of two boreal coniferous trees and theirdigestibility by ungulates

C. STOLTER, P. NIEMELA, J.P. BALL, R. JULKUNEN-TIITTO, A. VANHATALO, K.DANELL,T. VARVKKO, J.U. GANZHORN 232

Interactions between moose {Alces alces) and the willow Salix phylicifoliaC. STOLTER, J.U. GANZHORN 233

Endozoochorous seed dispersal in a Mediterranean dehesa: What about the pig?D. WALTHER,P. POSCHLOD 234

Genetic differentiation of the green oak leaf roller {Tortrix viridcma) and its host{Quercus.robur)

H. SCHROEDER, B. DEGEN 235Effects of flowering strips and landscape complexity on cereal aphids and their enemies

B. SCHEID, T. TSCHARNTKE, C. THIES 236

How does biotic and abiotic factors influence the occurrence and density of Maculineateleius in a mosaic landscape of the Hungarian Great Plain?

P. BATARY.N. ORVOSSY, A. K6R0SI ,M. NAGY-VALYI, L. PEREGOVITS 237

Effects of field and landscape parameters on pollen beetles in oilseed rapeJ.G. ZALLER, C. URL, D. MOSER, T. DRAPELA, T. FRANK 238

Annual fluctuations of insect abundance and diversity and consequences for pollinationin Namaqualand, South Africa

C.MAYER 239Does floral scent of willows {Salix spp.) guiding pollinators?

U. FUSSEL, S. DOTTERL, G. AAS 240

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Effects of land use changes on an ecosystem service: insect pollination in strawberryfields

K. KREWENKA, C. WESTPHAL, I. STEFFAN-DEWENTER, B.E. VAISSIERE 241

Small-scale spatial variation in plant-animal interactions affects plant reproductivesuccess - A pilot study with Phyteuma nigrum

A. KOLB, C. FLOTHE, S. LANGE 242

Symposium 11: Large-Scale Ecology and Macroecology 243

Impact of climate change on migratory birds: Evolution versus sorting of speciesH.-C. SCHAEFER, W. JETZ, K. BOHNING-GAESE 244

Land use in temperate Europe affects functional richness of hoverfly communities(Diptera, Syrphidae)

O. SCHWEIGER,M. MUSCHE,F. DZIOCK 245Habitat susceptibility to invasion by alien terrestrial vertebrates

S. BACHER, D. SOL, W. SOLARZ 246

Global determinants of plant diversityH. KREFT, J. MUTKE, W. JETZ 247

Distribution patterns and environmental correlates of seed mass in GermanyS. TAUTENHAHN, H. HEILMEIER, L. GOTZENBERGER, I .KUHN 248

Pattern extraction in the German floristic data base by nonlinear manifolds learningM. MAHECHA, S. SCHMIDTLEIN 249

Functional classification of Amazonian rainforest trees in relation to edaphic andclimatic factors

M. WAGNER, S. PATINO, J. PEACOCK, C.A. QUESADA, G. LOPEZ-GONZALEZ, O.

PHILLIPS, J.LLOYD 250

Patterns of abundance and distribution of Central European tree species in relation totheir niche breadth

B.KOCKEMANN,H. BUSCHMANN, C. LEUSCHNER 251Equilibrium theory, human impact, and biodiversity change on islands: from casestudies to the global situation

I .HAHN 252

Food resources as broad-scale determinant of avian frugivore richness in AfricaW.D. KISSLING, C. RAHBEK, K. BOHNING-GAESE 253

Latitudinal patterns of species richness in the European freshwater fauna: dispersalmatters - -

C . H O F , M . BRANDLE, A. MARTEN, R. BRANDL 254

Body size of spiders increases with temperature on a European and a local scaleW. ENTLING, M.H. SCHMIDT, S. BACHER, R. BRANDL, W. NENTWIG 255

Bryophytes communities on sandstone outcrops of Central European midlands - Anapproach towards modeling changes in bryophyte vegetation

I.HOLZ 256Diversity of deciduous forest fauna on a regional scale: Is aboveground diversitycorrelated with belowground diversity?

R. FRICKE, M. BRANDLE, R. BRANDL 257

Mapping a niche from regional data: Climate data as prediction to model plantdistribution in Germany

S. POMPE, F. BADECK, A. GLAUER, I. KUHN 258

Symposium 12: Palaeoecology - Learning from the Past for the Future 259

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How can a knowledge of the past help to conserve the future? Biodiversity conservationand the relevance of palaeoecological studies

K.J. WILLIS 260Dendroecological studies on subfossil oak and pine: a high resolution record of boghistory?

H.H. LEUSCHNER, A. BAUEROCHSE, U. SASS-KLAASSEN 261Resilience and change of forest ecosystems after human impact, as documented bycharcoal analysis

O.NELLE 262

Effects of the Litorina transgression on the hinterland of the southern Baltic Sea. Theexample of Mecklenburg- Vorpommem

D. MlCHAELIS, M. THEUERKAUF, M. SCHULT, H. JOOSTEN 263Stability in change: Glacial-interglacial variability and long-term trends in Africanvegetation

L.M. DUPONT 264Using paleoecology to resolve conservation/mining conflicts

M. VIRAH SAWMY, K. WILLIS, L. GILLSON 265Tropical vegetation response to rapid climate changes: palynological evidence ofmultiple stable states during the last glacial

C. GONZALEZ, L.M. DUPONT, H. BEHLING, G. WEFER 266Landscape modification and crop cultivation evidences of two different environments inColombia

J.C.BERRio 267Late Quaternary vegetation, biodiversity and fire dynamics on the southern Brazilianhighland and their implication for conservation and management of modem Araucariaforest and grassland ecosystems

H. BEHLING, V. DEPATTA PILLAR 268Long-term vegetation dynamics at the grassland-savanna ecotone, South Africa

E.BREMAN 269Vegetation development and human impact during the late Quaternary in the Lojaregion of the southeastern Ecuadorian Andes

H. NIEMANN, H. BEHLING 270Current and past plant communities in small mountain basins of NW-Italy outlined bytheir pollen assemblages

C. MOLINARI, M.A. GUIDO, S. PLACEREANI, C. MONTANARI 271Holocene stability and dynamics of forest vegetation in Val d'Aveto (Liguria, NW-Italy)

B.I. MENOZZI, C. BELLINI, C. GAGLIARDI, M.A. GUIDO, S. PLACEREANI, C.MONTANARI 272

Palaeoecology as a tool to estimate biodiversity change of a forest stand in south-western Norway

C. MOLINARI,R.H.W. BRADSHAW,M. OHLSON 273Subfossil pine woodland and trackways in Campemoor - dendrochronological data onthe history of woodland, mire and climate

H.H. LEUSCHNER 274Palaeogenetics - DNA from ancient wood remains

S. LEPELT,C. SPERISEN,M. SPENCER, B.ZIEGENHAGEN 275Recent pollen deposition as a tool to interpret pollen assemblages

B.I. MENOZZI, M.A. GUIDO, C. MONTANARI 276

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Symposium 13: Biodiversity Conservation in Marginal Regions 277

The effects of management on seed bank diversity in grasslands of a changing marginallandscape

C. WELLSTEIN, A. OTTE, R. WALDHARDT 278Effects of farm size and animal density on management intensity polarization ongrassland farms

I. WEYERMANN, B. MOSIMANN, G. A. HARTMANN, A. LUSCHER 279

Nutrient-poor grasslands are still biodiversity hotspots in the Swiss AlpsM. PETER, A. GIGON, P. EDWARDS, A. LUSCHER 280

Effects of landscape structure and fragmentation on genetic diversity of carabid beetlesin agricultural regions

A.-C. SANDER, V. WOLTERS, J. DAUBER 281

Large-scale distribution of hover flies depends on availability of larval feeding habitatsF. JAUKER, V. WOLTERS 282

A new strategy for management of springs in SwitzerlandB.BALTES 283

Ant communities in grasslands: management vs. abiotic and biotic conditionsH. DAHMS, V. WOLTERS, J. DAUBER 284

From biodiversity to ecosystem functions? The Ecosystem Millennium Assessment asan indicator for an innovation process in environmental research and policy

K. JAX, C. GORG, C. HAAK 285

Symposium 14: Alpine and Arctic Biodiversity and Ecology 286

Diversity - stability relationships of an alpine plant community under simulatedenvironmental change

K. KLANDERUD, 0. TOTLAND 287Is climate change affecting alpine plants? An Assessment of the Impacts of ClimateChange on the Alpine Herbfields on the Bogong High Plains, Victoria, Australia

F.C. JARRAD.M.A. BURGMAN,R.J. WILLIAMS 288

Impact of climate change on the carbon balance of high arctic forbsE.J. COOPER 289

Identification of phylogeographic break zones in multiple alpine plant speciesC. THIEL-EGENTER, N. ALVAREZ, A. TRIBSCH, R. HOLDEREGGER, F. GUGERLI,

INTRABIODIV-CONSORTIUM 290Mountain birch regeneration and seedling root systems in the treeline ecotone, FinnishLapland

K. ANSCHLAG,G. BROLL,F.-K. HOLTMEIER 291Nitrogen fixation, denitrification and ecosystem nitrogen pools in relation to vegetationdevelopment in the Subarctic

PL. SORENSEN, S. JONASSON, A. MlCHELSEN 292Lichen vegetation as hot spots of diversity in arctic and alpine areas

H. BULTMANN, F.J.A. DANIELS 293The alpine timberline: a hotspot of spider diversity?

P. MUFF, M. SCHMIDT, W. NENTWIG, C. KROPF 294Microhabitat preferences of the burnet moths Zygaena anthyllidis and Z. exulans in theSpanish Pyrenees

P. DlEKER, T. FARTMANN 295

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Population density and habitat use of alpine rock ptarmigan in consideration of humanimpacts

M. ZOHMANN, M. WOESS 296Spatial and temporal dynamics of Muskoxen {Ovibos moschatus) at Zackenberg,Northeast Greenland

D.K. HENDRICHSEN, M.C. FORCHHAMMER 297Altitudinal zonation of vegetation in continental West Greenland with special referenceto low Arctic steppe vegetation

B. DREES, B.SIEG,F.J .A. DANIELS 298Influence of temperature and light intensity on the photosynthesis of Usnea aurantiaco-atra from the maritime Antarctic

M. VESTE, B. SCHROETER, J. HERMANN, T. FEUERER, J.-P. FRAHM , T.G.A. GREEN, L.SANCHO '. 299

Permafrost-affected soils and ecosystem monitoring in Auyuittuq National Park in theCanadian Arctic

G. BROLL, C. TARNOCAI, J. GOULD 300Diversity of spiders and ground beetles in alpine habitats of the Central Scandes,Norway

O.-D.FrNCH 301Seasonality in Arctic under-ice amphipods (Crustacea)

I. WERNER, H.AUEL 302

Symposium 15: Dynamics and Diversity of Chemical Ecological Interactions inAquatic Ecosystems 303

Allelochemical interactions of marine protistsU. TlLLMANN '. 304

Revealing the alleochemical potential of Alexandrium ostenfeldii, a marinedinoflagellate

B.KROCK 305Waterborne allelochemicals of marine macroalgae affect bacterial diversity andabundance in close proximity

T. HARDER, C. LAM 3062,4-Dibromophenol and 2,4,6-tribromophenol disturb cellular calcium signalling andconstitute an olfactory signal to shrimps

U. BICKMEYER, T. HASSENKLOVER, K. WALTHER, K. ANGER 307Bacteria associated with the basiphyte trigger spore release in a red algal epiphyte

F. WEINBERGER, J.A. CORREA,G.POHNERT,N.KUMAR,P. STEINBERG,P.POTIN... 308From chemical communication to biogeochemistry: Enhanced mineralization infreshwater sediments by exposure of zoobenthos to predator odour

F.H0LKER,P . STIEF 309Specific variations of Aplysina aerophoba

A. KLOPPEL, A. PUTZ, M. PFANNKUCHEN, F. BRUMMER, P. PROKSCH 310Peculiar characters of a spongillid sponge species in Lake Constance caused bymussels?

M. PFANNKUCHEN, F. BRUMMER, S. SCHLESINGER, G.B. FRITZ, R.O. SCHILL, M.MEIXNER ' 311

Arsenic resistant microflora associated with Lemna sp. in abandoned uranium mine ineastern Germany

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K. VOGEL, Y. V. LYUBUN, M.P. CHERNYSHOVA, M. MKANDAWIRE, E.E. FEDOROV,E.G.DUDEL 312

Evidence that 3-decanol in hermit crab blood signals shell availability to conspecificsG. SCHMIDT, D. RITTSCHOF, T. HARDER 313

Symposium 16: Ecological Impacts ofNeobiota 314

Invasion of Pacific oysters {Crassostrea gigas) in the Wadden Sea (North Sea):competitive advantage over native mussels

S.DlEDERICH 315Invasion of Pacific Oyster {Crassostrea gigas) in the Wadden Sea - does it matter?

A. SCHMIDT, P. MAY, A. MARKERT, P. SCHIECK, A. WEHRMANN, N. DUBILIER, S.DITTMANN 316

Niche overlap and separation of closely related alien and native plantsR. LOSCH, G. DERICKS, U. SCHMITZ, W. BLEEKER 317

Human activities support natural range expansion of the marine isopod Idotea metallicaL. GUTOW 318

Introduced evergreen broad-leaved species expand northward in EuropeS. BERGER, G. SOHLKE,G.-R. WALTHER 319

Non-indigenous aquatic species — combining scientific interest and public awareness:the NEOBIOTA project

G.B. FRITZ, R.O. SCHILL,F. BRUMMER 320Does the enemy release hypothesis apply to invading seaweeds?

S. WIKSTROM,M.B. STEINARSDOTTIR, L.KAUTSKY,H. PAVIA 321Fast evolution in introduced species?

K. VRIELING, J. J O S H 322Predicting patterns of invasion by Black cherry {Prunus serotina Ehrh.) in Flanders(Belgium) and its impact on the forest understory community

K. VERHEYEN, M. VANHELLEMONT, T. STOCK, M. HERMY 323Genetic homogenization within the flora of Germany

M. WINTER, I. KUHN,S.KLOTZ 324How many neophytes hybridize with native plant species?

W. BLEEKER, U. SCHMITZ, M. RISTOW, A. MUHLHAUSEN,B.ELLING 325Comparative demography of invasive plants in their native and introduced range:Lythrum salicaria as a case study

P. FlNKENBEIN, K. TlELBORGER, J. CHAPMAN, Y. JlN CHUN, C. HOLZAPFEL, K.MOLONEY,F. SCHURR, L. WEISS 326

Dispersal patterns of escaped ornamental woody plants in urban-industrial forestecosystems of the Ruhrgebiet ?

P. GAUSMANN, P. KEIL, G.H. LOOS 327Distribution and abundance of Heracleum mantegazzianum: local versus regionalfactors

J. TMELE, A. OTTE 328Does climate change increase the success of neophytes in Germany?

G. SOHLKE, J. LUBBERT, G.-R. WALTHER 329Traits of successful plant invaders in Germany

E. KUSTER, I. KUHN, S. KLOTZ 330Craspedacusta sowerbii, Lankester 1880 - a review and new perspective

G.B. FRITZ,R.O. SCHILL,F. BRUMMER... 331ANEBO - Interreg-Project Aquatic Neobiota in Lake Constance and its tributaries

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H.LOFFLER,H.G. SCHRODE 332The common cord-grass Spartina anglica: An invasive alien species in the Wadden SeaNational Park

S.NEHRING,K.-J. HESSE 333

Neobiota as hosts in parasitic life cycles - trematodes in intertidal molluscs of the NorthSea

M. KRAKAU, D.W. THIELTGES, K. REISE 334

The good and the bad of introduced species - the case of the American slipper limpetCrepidula fornicata in European coastal waters

D.W. THIELTGES 335

Invaders welcome? Anthropogenically-induced species losses are counterbalanced byincreased diversity in the vicinity of an introduced seaweed

C.BUSCHBAUM,A.S. CHAPMAN,B. SAIER 336

New oyster reefs in the East Frisian Wadden Sea: analysis of community structureA. MARKERT 337

Symposium 17: Managed Ecosystems 338

Deficits of participative Biosphere Reserve management in Chile, Indonesia, andMadagascar

J. BARKMANN, S. STOLL-KLEEMANN, C.L. CERDA,N. FRITZ-VIETTA, S. UMAR 339

Namibia's Communal Conservancies: Challenges for a sustainable use of naturalresources

A. LlNSTAEDTER 340Dynamics of the elephant's population and the relationship with human of boarder inprotected areas in the new context of the protected area management in Benin

C.A. TEHOU 341Plant species diversity in cultural landscapes in Central Europe: developing effectiveconservation tools

C. BUHK, C. BEIERKUHNLEIN, A. JENTSCH 342

Agri-environmental schemes in Lower SaxonyG. WlCKE 343

The lost Aral Sea - how to combat this catastrophe in desertification - means ofphytomelioration to stop the disastrous situation

S.-W. BRECKLE, W. WUCHERER 344

Integrated material flow management in agroecosystems with high livestock densities inNorthwest-Germany

T.EBENTHAL,H.-J. BRAUCKMANN,G. BROLL 345

The ReviTec® approach: concept and resultsH. KOEHLER, R. KESEL ET AL 346

Nitrogen balance for assessing the environmental impact of home composting as part ofLife Cycle Assessment

S. SCHMIDT, C. PAHL-WOSTL 347

Balancing the input and persistence of pharmaceutical antibiotics in agricultural soilsS. TMELE-BRUHN 348

Experiences with a result-oriented payment scheme for the conservation of species-richgrassland in the water protection area Fuhrberger Feld (Lower Saxony)

M. BATHKE, E. BRAHMS, W.RAUE 349

Result-orientated subsidies of ecological services in grasslands of NorthwesternGermany - vascular plants as indicators

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B.WITTIG 350

Monitoring grassland in Saxony - first resultsC . F R A N K E , M . HOFMANN,G. RIEHL 351

The importance of cryptogamic soil crusts in desert sand dunesM.VESTE 352

Influence of different factors on food quality of West-Mongolian pasturesJ. BEHER 7 -. 353

Grazing impact as the main factor of differentiation in the loess steppe vegetation of theautonomous region of Ningxia (China)

R. WITTIG, U. BECKER, Y. Xm 354

Land degradation in the semi-arid regions of north-east BrazilO. HERRERABONILLA, I. MAJOR, M. OLIVERIAMARTINS, M. VESTE 355

Perception or deception: Vegetation degradation and desertification processes innorthwest Namibia

T. BECKER,M. VESTE 356

Feuerholzsammeln - ein Problem fur den Pendjari Nationalpark?J. GOWITZKE 357

Modelling ecological and economical effects of three different logging regimes ofIsoberlinia doka (Caesalpinaceae) in central Benin (West Africa)

B. ORTHMANN, J. SCHONGART,K. HENNENBERG, S. POREMBSKI 358

Nitrate leaching in bark beetle attacked stands in the highlands of the Bavarian ForestNational Park

C.HUBER 359Spatial Decision Support Systems in the management of biosphere reserves

T. BUTTSCHARDT 360CONTUREC - Competence Network for Urban Ecology

P. WERNER, W. NOBEL 361

Symposium 18: Plant Population Biology 362

The importance of genetic diversity and provenance of seed material used in ecologicalrestoration

A. BlSCHOFF, H. MULLER-SCHARER 363Genetic differentiation of reproductive traits of the clonal plant Ranunculus reptans in astress gradient: insights by conceptual modelling

E. W I N K L E R , D . P R A T I 364

The rhythm of savanna patch-dynamics assessed with a spatial simulation modelK.M. M E Y E R , K . W I E G A N D , D . WARD, A. MOUSTAKAS 365

About the emergence of alternative succession trajectories in neotropic mangroveforests

U. BERGER, C. Piou 366Spatial pattern of seed rain and seedling establishment in the tropical tree Prunusqfricana

D.G. BERENS, K. BOHNING-GAESE 367

Sheep-endozoochorous seed dispersal and post-dispersal processes in a harshenvironment: competitive perennials versus stress-tolerant annuals

C. EICHBERG, C. STORM, A. SCHWABE 368

Buddleja davidii performs better in the invasive areaS . K . E B E L I N G , H . AUGE 369

Genetically based differences between native and invasive Mahonia populations

XXIII

C.RO8,H.AUGE 370Comparison of genetic population structures of two closely related water hyacinthspecies Eichhornia crassipes (Mart.) Solms and E. azurea (Sw.) Kunth

B. RUDOLPH, P. PAROLIN, S. BARTEL, J. ADIS,E.BREDE, W.J. JUNK 371Local co-adaptation between cytoplasmic male sterility and nuclear restorer genes ingynodioecious Thymus praecox agg.: evidence from a population genetic crossingexperiment

U. LANDERGOTT, J.D. THOMPSON, J. J. SCHNELLER, R. HOLDEREGGER 372The diaspore pool in soils of urban wasteland

H. ALBRECHT, T. LANGBEHN 373Effects of seed heteromorphism on dormancy, germination and plant growth in BidenstripartitaL.

M. BRANDEL 374Spatial genetic patterns in the floodplain plant Cnidium dubium - insights in gene flowprocesses along rivers

I. LEYER, C. STARK, S. LIEPELT, S. BARTEL, E. BUSTORF, B. ZIEGENHAGEN, P.PAROLIN 375

Gymnadenia conopsea: The importance of secondary habitats as a substitute for naturalhabitats

C. STARK, W. DURKA 376Consequences of biodiversity loss for ecosystem functioning

J. HAASE, H. AUGE, H. SCHULZ, F. STANGE, M. SCHADLER, S. SCHEU, A. HECTOR, D.PRATI 377

Proportion and spatial distribution of sexes in Populus euphratica stands from theTarim basin, western China

M. SCHNITTLER, M.SAUKE 378A new index for computing interspecific effects on plant performance: relativeinteraction intensity of mixture (RIM)

G. VESTER, F.J.A. DANIELS 379Digital data acquisition for organismic sciences

P. STROBL 380The significance of plasticity for diversity-functioning relationships - a model analysis

T. REINHOLD, C. WIRTH, J. SCHUMACHER, H. DAHRING 381

Symposium 19: Nature Conservation - From Science to Application 382

Putting nature conservation into practice - a comparison of management approaches forNatura 2000 sites in the Alpine region

S.F. KLEVER,F.V. RUFFINI 383The implementation of research findings of corncrakes' {Crex crex L.) habitatrequirements in the Lower Oder Valley National Park (Brandenburg, Germany) intofuture area development plans of the park administration

P. JUST, G. GEROLD 384Population estimation in wild boar {Sus scrofa) using faecal DNA

H.K. SCHULZ, I. NIKOLOV, U. HOHMANN, D. HUCKSCHLAG, C. EBERT, R. SCHULZ. 385The effect of flexibility in the mating system on population persistence: lessons fromthe Lesser Spotted Woodpecker {Picoides minor)

E. ROSSMANITH, V. GRIMM,N. BLAUM,F. JELTSCH 386Building resilience into ecological systems: from theory to sustainable practices

F. BRAND 387

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INGRID - a landscape model for quantifying the trade-off between conservation needsand economic constraints

B. SCHRODER, M. RUDNER, R. BIEDERMANN, H. KOGL, M. KLEYER 388

Choice experiments as a versatile method to facilitate decision making on conservationstrategies

C. CERDA, J. BARKMANN,R. MARGGRAF 389

When weather drives demographic trends in plants - critics on PVA predictions forplant populations

M. PFEIFER, K. WIEGAND, W. HEINRICH, G. JETSCHKE 390

Filling 'gaps' with a simulation tool: Understand habitat needs and species richnesswith ecological models

K. ULBRICH, J. SETTELE 391

Societal relations to nature and protected areas - The case of the Cape Horn BiosphereReserve

U. BERGHOFER, A. BERGHOFER, R. ROZZI.F. MASSARDO, K. JAX 392

A habitat suitability model for the endangered longhorn beetle Cerambyx cerdo -ordinal vs. binary response

J. BUSE,B. SCHRODER,T. ASSMANN 393

What explains the distribution of the Duke of Burgundy butterfly {Hamearis lucina) incalcareous grasslands in Central Europe?

T.FARTMANN 394

Evaluating the effectiveness of species conservation management in an agriculturallandscape

A. HOLZKAMPER,R. SEPPELT 395

Sheep-epizoochorous seed dispersal versus seedling recruitment: lessons from inlandsand ecosystems

S. WESSELS, C. ElCHBERG, C. STORM, A. SCHWABE 396Species and vegetation responses to habitat changes in Corynephorus grassland andconclusions for management work

T. HASSE&F.J .A.DANIELS 397

Effects of abandonment of subalpine hay meadows on plant and invertebrate diversity inTransylvania, Romania

B. BAUR, C. CREMENEETAL 398

North Sea zoobenthos communities and their protectionE. RACHOR 399

Fallow strips in fen meadows form important habitats for hibernating arthropodsS. ROCKER, T. WALTER, A. GIGON 400

Restoration of wet meadow communities after sustained abandonmentG. ROSENTHAL, J. MULLER 401

Functions of different hedgerows as bird habitats at the nature reserveJ. MULLER,M. SCHINDLER, D. WlTTMANN 402

Bird indicator to maintain biological diversity in the agricultural landscapesJ. HOFFMANN, G. LUTZE, J. KIESEL, B. WUNTKE, J.M. GREEF, K.-O. WENKEL 403

Reed decline and reed restoration: bridging the gap between science and applicationS. HEEMANN, W. SCHOENBERG, K. JENSEN 404

Mountain grasshoppers prefer southerly exposures over eco-meadows: consequences forconservation efforts

D. KAMPMANN,F.HERZOG,W. KONOLD 405

Intraspecific aggregation of sowing enhances plant coexistence

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B. WABMUTH, P. STOLL,T. TSCHARNTKE, C.THTES 406

Germination ecology of Potamogeton malaianus Miq. and its implications for therestoration of aquatic macrophy te vegetation in Japan

S. HOTES, H. KURODA, J. NlSfflHIRO, I. WASHITANI 407

KoWeB - a management concept for softwood forest restoration combining ecologicaland flood protection issues

E.MOSNER, S~ SCHNEIDER, B.LEHMANN, I. LEYER 408

The application of a spatially-explicit model for the sustainable use of mangrove forestplantations

M.L. FONTALVO-HERAZO, U. BERGER, C. PIOU 409

Web based analysis of ecological data via MySQL, PHP and JPGraphC. MUCKSCHEL, R. THIERFELDER, W. KOHLER 410

The customisation of the INGRID landscape model for nature conservation authoritiesM. RUDNER, B. SCHRODER, R. BIEDERMANN, H. KOGL, R. FUB, M. BUCERIUS, J.

STEINHOFF, M. KLEYER 411

New methodology of evaluation of state and management of protected areasM. SVATEK 412

Monitoring FFH conservation areas with hyperspectral imagery: comparison ofsupervised classification algorithms

C. WEIB, S. SCHMIDTLEIN 413

Major threats to animal species in Germany - results of a nation wide expert andliterature survey

U. NlGMANN, A. GUNTHER, R. ACHTZIGER, H. GRUTTKE 414Patterns of genetic variation and diversity spanning between rear and leading edges -Lessons for large-scale conservation strategies

S. LlEPELT,D. GOMORY,R. LONGAUER,B. FADY,B. ZlEGENHAGEN 415Modelling biodiversity and people's preferences using remote sensing and GIS

S.FISTRIC,U. BERGHOFER, C. CERDA, K. JAX, R. ROZZI 416

Authors' Index 417

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