Avian species distribution along elevation at Doon Valley (foot hills of western Himalayas), Uttarakhand, and its association with vegetation structure

Abstract

We assessed a diverse avian population during February 2013 to February 2014 at Doon Valley forest. During the study period we recorded a total of 218 species (18,982 individuals) belonging to 50 families using line transect along with the fixed radius point count method in the study area. Avian species diversity , richness, and abundance showed a hump-shaped distribution pattern in the study range (325–2300 m above sea level). The association of vegetation structure with avian community illustrates the significantly positive correlation with shrub diversity and density/ha along the elevation. The presence of new records (habitat area extension), endangered species , and two near-threatened species concerns the conservation of birds and forest habitat in this area.