If present trends continue, 565 mammalian species may vanish from the planet within five decades. Carnivores are said to be most vulnerable species because of their unique biological traits such as their position at the top of the food chain, conflict-prone behaviour and low population densities.
In the ongoing research studies by Wildlife Conservation Society (WCS), India Program, it was found that mammals are struggling for suitable habitat and are in need of continuous protection.
Research come out with a collaborative volume of species and habitat studies, field work, survey design, methodologies and findings — carried out in Indian forests. The collaborative effort was performed by senior, distinguished officer of the Indian Forest Service with other expert ecologists.
These officers including Dr G V Reddy, IFS, several WCS scientists — Drs Ullas Karanth, Samba Kumar and Krithi Karanth — and Dr Jagdish Krishnaswamy of Ashoka Trust for Research in Ecology and Environment (ATREE), who recently shown concern to save wildlife.
In the study the efficacy of wildlife conservation models, which examined human impact on a suite of vegetation types, birds and large herbivores in Nagarahole National Park, Karnataka.
Dr Reddy, currently Chief Wildlife Warden, Rajasthan, said that for bio-diversity assessment and estimations of species composition, richness, diversity and abundance, we applied line transect methodology where samplers record encounters of target species.
The results indicate that human interventions trigger cascading effects on structure of the forest which result in bio-diversity loss, said another researcher Dr Karanth.