Logging impacts on understorey birds (talk) — 12th February, 2014, Bangalore
February 12, 2014
16:00 to 18:00
CES Seminar Hall
Centre for Ecological Sciences, Indian Institute of Science, presents a talk:
Title: Logging impacts on understorey birds
Speaker: Umesh Srinivasan, NCBS, Bangalore
Time: 4 pm
Abstract: Despite substantial research on the impacts of habitat fragmentation and logging on natural (especially bird) communities, our understanding of the mechanisms underpinnings leading to such impacts remains rudimentary. Over a three-year period, using understorey insectivorous birds, we investigated the impact of logging on:
- static community patterns,
- dynamic community patterns,
- demographic rates, and
- gene flow
We used mist-netting and bird ringing across a gradient of logging intensity in montane wet temperate forest in the Eaglenest Wildlife Sanctuary, Arunachal Pradesh, northeast India. We show that logging has the potential to:
- alter mass-abundance scaling in understorey communities, possibly due to the loss of large species and
- density compensation by smaller species in logged patches, and
- cause reduced temporal variability in community structure, perhaps because of a shift from neutral to niche processes in logged habitats.
Currently, work on the demography of selected understorey species using the open model mark-recapture framework is in progress, as is work examining gene flow across a gradient of logging using microsatellite data.
All are cordially welcome. Tea/Coffee will be served at 3:45pm.