The Indian subcontinent is amongst the biologically better known parts of the tropics and its bird fauna has been well documented. However, avian community composition and diversity along elevational gradients and amongst habitat types remains unclear in India. We attempted to estimate bird assemblages in terms of diversity, species composition, status and abundance in urban and forest habitats of Nainital district of Uttarakhand (350–2450 m asl; 29°N), Western Himalayas. We sampled different elevational gradients and to understand the effect of urbanization and season on avian community composition. Field studies were conducted during January 2005 to January 2007. Results indicated that the forest had more complex bird community structure in terms of higher species richness (14.35 vs 8.69), higher species diversity (Shannon’s index 4.00 vs 3.54), higher evenness (0.838 vs 0.811) and more rare species (17 vs 5) as compared to urban habitat. However, the abundance of 11 species was higher in urban habitats. Bird Species Richness (BSR) varied considerably among study areas (91 to 113 species), was highest (113 species) at mid elevation (1450–1700 m asl) and decreased (22 species) at high elevation (1900–2450 m asl). It seems that high BSR at mid altitudes is not caused by the presence of a group of mid altitude specialists but rather that there is an overlap in the distribution of low land and high elevation specialists at this altitude. BSR and Bird Species Diversity fluctuated across seasons but not habitat type.
1 June 2015 in Journal of Asia-Pacific Biodiversity
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
In the Indian subcontinent there is hardly any study that compares the bird community structure of urban/suburban areas with those of forest habitat. The present survey identified diverse assemblages of birds in the Pauri district at different elevations. A total of 125 bird species belonging to 40 families including two least count species (Lophura leucomelanos and Pucrasia marcolopha) were recorded during this survey in the forest and urbanized habitats of Pauri District (Garhwal Hiamalaya) of Uttarakhand state, India. The high elevation (Pauri 1600–2100 m a.s.l.), mid elevation (Srikot-Khanda 900–1300 m a.s.l.) and low elevation (Srinagar 500–900 m a.s.l.) contributed 88.8%, 63.2% and 58.4% of the total species respectively. Rarefaction analysis and Shannon diversity index showed that the high elevation forest habitat had highest bird species richness (BSR) and bird species diversity (BSD) followed by the mid and then the low elevation forests. BSR and BSD fluctuated across seasons at all elevations but not across habitat types. Present study provides a base line data about avian community composition in urbanized and natural habitats along altitudinal gradient in the study area. This information may be useful to the conservation biologists for the better management and conservation of the avifauna in the Western Himalaya, a part of one of the hot biodiversity spots of the world.
This study investigates forest fire dynamics and their implications for management in the Uttarakhand Himalaya region. Utilizing remote sensing analysis, field surveys, and socio-economic assessments, the research aims to understand the spatial and temporal patterns of fires, assess their impact on vegetation, soil properties, and biodiversity, and propose effective management strategies. Results reveal a significant increase in fire frequency and severity, with a 25% rise in fire occurrences observed over the past decade. High-intensity fires caused extensive damage to vegetation, with a 40% reduction in tree density observed in severely affected areas. Soil organic matter loss due to fires averages at 15%, threatening ecosystem health and resilience. However, opportunities for fire management exist, including prescribed burning and community-based prevention programs. Policy recommendations emphasize the importance of integrating ecological and socio-economic perspectives into fire management strategies to promote ecosystem resilience and community adaptation. This study contributes valuable insights for policymakers, forest managers, and local communities to develop science-based fire management policies and practices, ultimately fostering sustainable forest management and fire risk reduction in the Uttarakhand Himalaya region.