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Vestnik Zoologii

The Journal of National Academy of Sciences of Ukraine, Schmalhauzen Institute of Zoology

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Influence of Human Disturbance on the Abundance of Himalayan Pheasant (Aves, Galliformes) in the Temperate Forest of Western Himalaya, India

V. Jolli1 / M. Pandit1

Centre for Inter-disciplinary Studies of Mountain & Hill Environment Academic Research Building, University of Delhi, Patel Road, Delhi, India1

This content is open access.

Citation Information: Vestnik Zoologii. Volume 45, Issue 6, Pages e-40–e-47, ISSN (Online) 2073-2333, ISSN (Print) 0084-5604, DOI: 10.2478/v10058-011-0035-0, January 2012

Publication History

Published Online:
2012-01-04

Influence of Human Disturbance on the Abundance of Himalayan Pheasant (Aves, Galliformes) in the Temperate Forest of Western Himalaya, India

We conducted field studies in the Jiwa valley (Indian Himalayas) to examine the influence of human disturbance on Himalayan pheasants. We used the "call count" and "line transect" methods to estimate the abundance of pheasants in Jiwa valley. A human disturbance gradient defined by human population, agriculture activity, forest wood collection, grazing, vehicle, use of heavy machines, human settlements, dumping ground, and blasting was prepared. We assessed the pheasant numbers under two conditions (1) a decline in the gradient of human activity during two consecutive years (2009-2010) (2) in the presence of hydroelectric development activities. The numbers of koklass pheasants, Himalayan monal, cheer pheasant and Western tragopan declined significantly with anthropogenic activities. During spring 2010, hydroelectric construction activity was temporarily suspended in Manjhan adit, and a positive response was noted in terms of an increase in the pheasant numbers near the site. The response of pheasants to human disturbance has inferred that large scale development can lead to decline of Himalayan pheasant in Himalayan region.

Влияние фактора беспокойства на численность гималайских фазанов (Aves, GaDiformes) в умерен-ном лесу Западных Гималаев, Индия

Проведены полевые исследо вания в долине Джива (Индийские Гималаи) для оценки влияния фактора беспокойства на гима лайских фазанов. Для оценки численности фазанов в долине Джива использовали метод учета по голосам и трансектный метод. Градиент фактора беспокойства определен по оценке количе- ства населения, сельскохозяйственной деятельности, вырубке лесов, выпасу, транспорту, исполь- зованию тяжелых машин, человеческим поселениям, использованию земли под свалки и направ-ленным взрывам. Мы оценивали количество фазанов условно по (1) снижению градиента фак-тора беспокойства в течение двух последовательных лет (2009- 2010) и (2) деятельности по развитию гидроэлектростанций. Количество клинохвостого фазана, гималайского монала, гима- лайского фазана и восточного трагопана значительно уменьшилось с антропогенной деятельностью. В течение 2010 года, деятельность по созданию гидроэлектростанций была временно приоста- новлена в Манджан адит, и было отмечено увеличение численности фазанов в этом районе. Ответна фактор беспокойства означает, что широкомасштабное развитие региона может привести к снижению численности Гималайских фазанов в районе Гималаев.

Keywords: call count; encounter rate; himalayan pheasant; human disturbance; Western Himalaya

Keywords: учет по голосам; коэффициент случайности; гималайский фазан; фактор беспокойства; Западные Гималаи

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