Colobines are known to colonise habitats over a wide range from lower to
high altitudes, which makes them highly adaptive to different
environmental conditions. Higher altitudes being less productive with
decreased animal and plant density provide greater challenges for the
resident primate populations. Primates living in high altitudes are known
to cope up with challenges by adapting risky foraging strategies.
Most of the information about primate ecology and behaviour and diet in
particular comes from lowland habitats. Very few studies on Himalayan
langurs have coupled the primate diet with phenological data. In this
study I aim to understand the ecology and behaviour of Himalayan langurs
(Semnopithecus ajax). I will look into foraging strategies and diet
selection by them in different habitats across various seasons. Moreover,
I will try to understand the effects of human disturbance on feeding in
light of optimal foraging theory