Abstract
This study documents a short-term post-winter survey of avifaunal diversity in Corbett National Park and associated areas in Uttarakhand. Qualitative and quantitative avian diversity patterns were assessed from a biomonitoring and conservation perspective. A total of 94 species of birds belonging to 40 families under 15 orders were reported. Among these 10 were winter visitors, six summer visitors and one near-threatened species. Habitat distribution and foraging guild patterns are discussed. Insectivores and nectarivores were found to be the prominent foragers. Open woodland, cultivated land and forest edges provided shelter for many bird populations, while plantation areas supported the lowest numbers of species. The study area was exposed to varying levels of anthropogenic interventions, yet supported a healthy bird diversity with low dominance index.
Highlights
Abstract: dŚŝƐƐƚƵĚLJĚŽĐƵŵĞŶƚƐĂƐŚŽƌƚͲƚĞƌŵƉŽƐƚͲǁŝŶƚĞƌƐƵƌǀĞLJŽĨĂǀŝĨĂƵŶĂůĚŝǀĞƌƐŝƚLJŝŶŽƌďĞƩEĂƟŽŶĂůWĂƌŬĂŶĚĂƐƐŽĐŝĂƚĞĚĂƌĞĂƐŝŶ hƩĂƌĂŬŚĂŶĚYƵĂůŝƚĂƟǀĞĂŶĚƋƵĂŶƟƚĂƟǀĞĂǀŝĂŶĚŝǀĞƌƐŝƚLJƉĂƩĞƌŶƐǁĞƌĞĂƐƐĞƐƐĞĚĨƌŽŵĂďŝŽŵŽŶŝƚŽƌŝŶŐĂŶĚĐŽŶƐĞƌǀĂƟŽŶƉĞƌƐƉĞĐƟǀĞ ƚŽƚĂů ŽĨ εκ ƐƉĞĐŝĞƐ ŽĨ ďŝƌĚƐ ďĞůŽŶŐŝŶŐ ƚŽ κϬ ĨĂŵŝůŝĞƐ ƵŶĚĞƌ ϭρ ŽƌĚĞƌƐ ǁĞƌĞ ƌĞƉŽƌƚĞĚ ŵŽŶŐ ƚŚĞƐĞ ϭϬ ǁĞƌĞ ǁŝŶƚĞƌ ǀŝƐŝƚŽƌƐ Ɛŝdž ƐƵŵŵĞƌ ǀŝƐŝƚŽƌƐĂŶĚŽŶĞŶĞĂƌͲƚŚƌĞĂƚĞŶĞĚƐƉĞĐŝĞƐ,ĂďŝƚĂƚĚŝƐƚƌŝďƵƟŽŶĂŶĚĨŽƌĂŐŝŶŐŐƵŝůĚƉĂƩĞƌŶƐĂƌĞĚŝƐĐƵƐƐĞĚ/ŶƐĞĐƟǀŽƌĞƐĂŶĚŶĞĐƚĂƌŝǀŽƌĞƐǁĞƌĞ ĨŽƵŶĚƚŽďĞƚŚĞƉƌŽŵŝŶĞŶƚĨŽƌĂŐĞƌƐKƉĞŶǁŽŽĚůĂŶĚĐƵůƟǀĂƚĞĚůĂŶĚĂŶĚĨŽƌĞƐƚĞĚŐĞƐƉƌŽǀŝĚĞĚƐŚĞůƚĞƌĨŽƌŵĂŶLJďŝƌĚƉŽƉƵůĂƟŽŶƐǁŚŝůĞ ƉůĂŶƚĂƟŽŶĂƌĞĂƐƐƵƉƉŽƌƚĞĚƚŚĞůŽǁĞƐƚŶƵŵďĞƌƐŽĨƐƉĞĐŝĞƐdŚĞƐƚƵĚLJĂƌĞĂǁĂƐĞdžƉŽƐĞĚƚŽǀĂƌLJŝŶŐůĞǀĞůƐŽĨĂŶƚŚƌŽƉŽŐĞŶŝĐŝŶƚĞƌǀĞŶƟŽŶƐ LJĞƚƐƵƉƉŽƌƚĞĚĂŚĞĂůƚŚLJďŝƌĚĚŝǀĞƌƐŝƚLJǁŝƚŚůŽǁĚŽŵŝŶĂŶĐĞŝŶĚĞdž.
ŜƚĂƟŽŶ 'ŚŽƐŚ^͘ΘdŚĂƩĂĐŚĂƌLJĂ;ϮϬϭΘͿƐŚŽƌƚͲƚĞƌŵƐƵƌǀĞLJƌĞƉŽƌƚŽŶƚŚĞƉŽƐƚͲǁŝŶƚĞƌĂǀŝĂŶĚŝǀĞƌƐŝƚLJŝŶŽƌďĞƩEĂƟŽŶĂůWĂƌŬĂŶĚĂƐƐŽĐŝĂƚĞĚĂƌĞĂƐhƩĂƌĂͲ ŬŚĂŶĚ/ŶĚŝĂ Journal of Threatened TaxaϭϬ;ϭͿϭϭϭΘρϭϭϭεϭ; ŚƩƉͬͬĚŽŝŽƌŐͬϭϬϭϭςϬεͬũŽƩϯϮϮϬϭϬϭϭϭϭΘρͲϭϭϭεϭ
ƐƉĞĐŝĞƐ ;Vanellus duvaucelii) ;dĂďůĞ ϭͿ ďĞůŽŶŐĞĚ ƚŽ EĞĂƌ dŚƌĞĂƚĞŶĞĚ ;EdͿ ŝŶ /hE ZĞĚ >ŝƐƚ ŽĨ dŚƌĞĂƚĞŶĞĚ ^ƉĞĐŝĞƐ ĐĂƚĞŐŽƌLJ ;/hE ϮϬϭκͿ DŽƐƚ ŽĨ ƚŚĞ ƐƉĞĐŝĞƐ ;ϳΘͿ ĞŶĐŽƵŶƚĞƌĞĚ ǁĞƌĞ ƌĞƐŝĚĞŶƚƐ ĂŶĚ Ɛŝdž ƐƉĞĐŝĞƐ ǁĞƌĞ ƐƚƌŝĐƚ ǁŝŶƚĞƌ ǀŝƐŝƚŽƌƐ &ŽƵƌ ǁŝŶƚĞƌ ǀŝƐŝƟŶŐ ƐƉĞĐŝĞƐ ǀŝnj Streptopelia orientalisCharadrius dubiusAccipiter nisus ĂŶĚAlauda gula gulaƐŽŵĞƟŵĞƐǁĞƌĞƌĞƉŽƌƚĞĚƚŽƐƚĂLJ LJĞĂƌůŽŶŐ ŝŶ ƚŚĞ EW ůĂŶĚƐĐĂƉĞ >ŝŬĞǁŝƐĞ ĮǀĞ ƐƵŵŵĞƌ ǀŝƐŝƚŽƌƐ ǁĞƌĞ ĂůƐŽ ƌĞƉŽƌƚĞĚ ƚŽ ƐƚĂLJ ďĂĐŬ ǀŝnj.
Summary
Abstract: dŚŝƐƐƚƵĚLJĚŽĐƵŵĞŶƚƐĂƐŚŽƌƚͲƚĞƌŵƉŽƐƚͲǁŝŶƚĞƌƐƵƌǀĞLJŽĨĂǀŝĨĂƵŶĂůĚŝǀĞƌƐŝƚLJŝŶŽƌďĞƩEĂƟŽŶĂůWĂƌŬĂŶĚĂƐƐŽĐŝĂƚĞĚĂƌĞĂƐŝŶ hƩĂƌĂŬŚĂŶĚYƵĂůŝƚĂƟǀĞĂŶĚƋƵĂŶƟƚĂƟǀĞĂǀŝĂŶĚŝǀĞƌƐŝƚLJƉĂƩĞƌŶƐǁĞƌĞĂƐƐĞƐƐĞĚĨƌŽŵĂďŝŽŵŽŶŝƚŽƌŝŶŐĂŶĚĐŽŶƐĞƌǀĂƟŽŶƉĞƌƐƉĞĐƟǀĞ ƚŽƚĂů ŽĨ εκ ƐƉĞĐŝĞƐ ŽĨ ďŝƌĚƐ ďĞůŽŶŐŝŶŐ ƚŽ κϬ ĨĂŵŝůŝĞƐ ƵŶĚĞƌ ϭρ ŽƌĚĞƌƐ ǁĞƌĞ ƌĞƉŽƌƚĞĚ ŵŽŶŐ ƚŚĞƐĞ ϭϬ ǁĞƌĞ ǁŝŶƚĞƌ ǀŝƐŝƚŽƌƐ Ɛŝdž ƐƵŵŵĞƌ ǀŝƐŝƚŽƌƐĂŶĚŽŶĞŶĞĂƌͲƚŚƌĞĂƚĞŶĞĚƐƉĞĐŝĞƐ,ĂďŝƚĂƚĚŝƐƚƌŝďƵƟŽŶĂŶĚĨŽƌĂŐŝŶŐŐƵŝůĚƉĂƩĞƌŶƐĂƌĞĚŝƐĐƵƐƐĞĚ/ŶƐĞĐƟǀŽƌĞƐĂŶĚŶĞĐƚĂƌŝǀŽƌĞƐǁĞƌĞ ĨŽƵŶĚƚŽďĞƚŚĞƉƌŽŵŝŶĞŶƚĨŽƌĂŐĞƌƐKƉĞŶǁŽŽĚůĂŶĚĐƵůƟǀĂƚĞĚůĂŶĚĂŶĚĨŽƌĞƐƚĞĚŐĞƐƉƌŽǀŝĚĞĚƐŚĞůƚĞƌĨŽƌŵĂŶLJďŝƌĚƉŽƉƵůĂƟŽŶƐǁŚŝůĞ ƉůĂŶƚĂƟŽŶĂƌĞĂƐƐƵƉƉŽƌƚĞĚƚŚĞůŽǁĞƐƚŶƵŵďĞƌƐŽĨƐƉĞĐŝĞƐdŚĞƐƚƵĚLJĂƌĞĂǁĂƐĞdžƉŽƐĞĚƚŽǀĂƌLJŝŶŐůĞǀĞůƐŽĨĂŶƚŚƌŽƉŽŐĞŶŝĐŝŶƚĞƌǀĞŶƟŽŶƐ LJĞƚƐƵƉƉŽƌƚĞĚĂŚĞĂůƚŚLJďŝƌĚĚŝǀĞƌƐŝƚLJǁŝƚŚůŽǁĚŽŵŝŶĂŶĐĞŝŶĚĞdž. ŜƚĂƟŽŶ 'ŚŽƐŚ^͘ΘdŚĂƩĂĐŚĂƌLJĂ;ϮϬϭΘͿƐŚŽƌƚͲƚĞƌŵƐƵƌǀĞLJƌĞƉŽƌƚŽŶƚŚĞƉŽƐƚͲǁŝŶƚĞƌĂǀŝĂŶĚŝǀĞƌƐŝƚLJŝŶŽƌďĞƩEĂƟŽŶĂůWĂƌŬĂŶĚĂƐƐŽĐŝĂƚĞĚĂƌĞĂƐhƩĂƌĂͲ ŬŚĂŶĚ/ŶĚŝĂ Journal of Threatened TaxaϭϬ;ϭͿϭϭϭΘρϭϭϭεϭ; ŚƩƉͬͬĚŽŝŽƌŐͬϭϬϭϭςϬεͬũŽƩϯϮϮϬϭϬϭϭϭϭΘρͲϭϭϭεϭ
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