effect of tree composition on epiphytes abundance in coffee agroforestry systems of kodagu
DESCRIPTION
Effect of tree composition on epiphytes abundance in coffee agroforestry systems of Kodagu. CAFNET PROJECT. Poornika,Kushalappa, C.G.,Mohana, G.S., Vaast, P, Garcia, C., Sinclair, F. L, Jadyegowda,. and M.N. Ramesh. 2 nd world congress on agro forestry, Nairobi. - PowerPoint PPT PresentationTRANSCRIPT
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Effect of tree composition on epiphytes abundance in coffee agroforestry systems of Kodagu
Poornika,Kushalappa, C.G.,Mohana, G.S.,
Vaast, P, Garcia, C., Sinclair, F. L, Jadyegowda,.
and M.N. Ramesh
CAFNET PROJECT
2nd world congress on agro forestry, Nairobi
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18 communities including several tribes
Coorg district (75.92o,12.27o), Karnataka State, India
Biodiversity rich landscape in the central Western Ghats, one of the 34 global hotpots of biodiversity
Geographical area ~ 4160 Sq.kms and altitude ranges 800-1800 mts
The forest cover 45% and 30% agro-forestry systems
Wet evergreen, moist and dry deciduous forests.
Map Courtesy: Garcia, C., 2003
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Context
Tree cover lossAssociated biodiversity loss
Native tree conversion to exotic speciesHuman-elephant conflict
Land tenure systemsLegal hurdlesLabor crisis
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CAFNET PROJECT
Local Knowledge
Biodiversity inventory
Soil and Hydrological
studies
Enhancing value chains
Best practice guidelines related to ecosystem services
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Objective and Questions Objective: To assess the epiphyte abundance and distribution in
coffee agro forestry systems under different vegetation types
Questions:
1) Can increase in canopy cover lead to increase in epiphyte abundance.
2) Does vegetation type affects epiphytes distribution
3) Do epiphytes prefer certain host trees.
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1. Stratification- Evergreen/ moist deciduous vegetation Totally 36 plantations in 12 villages were
sampled2. Sampling- Variable width transect method Trees in each plantation were enumerated and
observed for epiphytes
Methodology
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Cauvery Watershed
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View of CAFS under different canopy cover
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Canopy cover & Epiphytes abundance
• Canopy cover had significant influence on epiphytic species abundance
• Up to certain threshold level of canopy epiphytic species abundance increases
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Girth class and epiphytic species abundance
Evergreen Moist deciduous
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Host preference & Epiphyte abundance
Evergreen Moist Deciduous
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Epiphytic species abundance
Evergreen Moist deciduous
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Conclusions
• CAF provides favorable microclimate for epiphytes.
• Maintaining optimum tree (canopy) cover in CAF supports for higher epiphytic abundance.
• Epiphytes do differ in their abundance and species preference w.r.t. vegetation types and girth class of trees