Methods
The study area was stratified into four main study units or census zones
based on the main vegetation types and data was collected from these
census zones; such as riverine forest, and ground-water forest (67.5
km2), grassland (270 km2), and
bushland (80.87 km2) census zones through
line-transect survey following the work of Sutherland (2006). Out of the
possible transects formed in each area of the census zone, several
representative samples of transect were randomly selected and marked for
sampling using random numbers.