2.3. a) Field and Analytical method: Variation in prey
composition and density across study sites
Line transect based distance sampling (Buckland et al., 2001) was used
to estimate prey densities at the two sites. Line transects were laid in
a stratified random framework to ensure spatial coverage of all
vegetation types. All transects were of 2 km length. Survey effort of
950 km and 984 km was put in TATR and NNTR, respectively. Data for
species, group size and composition, GPS (global positioning system)
location of every observation, bearing of the animal using compass and
angular sighting distance using laser range finders, was recorded
whenever sightings were made online transects.