Estación Biológica Cocha Cashu
Ecology of obligate ant-following birds and army-ants
Assistant Professor of Conservation Biology
Five focal species of birds (Thamnophilidae: Phlegopsis nigromaculata, Myrmeciza fortis, Rhegmatorhina melanosticta, Gymnopithys salvini; Dendrocolaptidae: Dendrocincla merula) have been color-banded over a 200 ha. area. The main question I am asking about the birds is:
How do birds make foraging choices? given:
B. mobile food resource which is
Due to four years of intensive capture/ resight data and extrememly high recapture rates, I can estimate yearly survival of ant-following birds at Cashu. I am using the program MARK to analyze data, and believe that the results will contribute to the current debate over tropical vs. temperate avian survival rates.
am also studying the population dynamics of the two army-ant species followed
by obligate ant-followers at Cashu: Eciton burchelli and Labidus
praedator. Does E.burchelli minimize re-exploitation of recently
raided areas? Most work on army ants has occurred on Barro Colorado Island
where E.burchelli density is much lower than at Cocha Cashu, so
it will be interesting to compare results with those found on BCI.
Funding has been provided by an Exxon Teagle Foundation Scholarship, Trans World Airlines Grants, an Organization of American States PRA Training Grant, the MU Div. of Biological Sciences, and a GAANN Dept. of Education Fellowship.
female Myrmeciza fortis