Reassessment of the distribution and threat status of the Western Ghats endemic bird, Nilgiri Pipit Anthus nilghiriensis

Montane grasslands in India face threats from habitat modification and climate change, but have received little conservation attention. In the Western Ghats, 55–80% of this habitat has been converted to commercial and non-commercial plantations. We examine the distribution of a range-restricted, gra...

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Bibliographische Detailangaben
Veröffentlicht in:	Current Science. - Current Science Association. - 107(2014), 4, Seite 622-630
1. Verfasser:	Robin, V. V. (VerfasserIn)
Weitere Verfasser:	Vishnudas, C. K., Ramakrishnan, Uma
Format:	Online-Aufsatz
Sprache:	English
Veröffentlicht:	2014
Zugriff auf das übergeordnete Werk:	Current Science
Schlagworte:	Biological sciences Environmental studies Physical sciences Business


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245	1	0	\|a Reassessment of the distribution and threat status of the Western Ghats endemic bird, Nilgiri Pipit Anthus nilghiriensis
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520			\|a Montane grasslands in India face threats from habitat modification and climate change, but have received little conservation attention. In the Western Ghats, 55–80% of this habitat has been converted to commercial and non-commercial plantations. We examine the distribution of a range-restricted, grassland-endemic bird, the Nilgiri Pipit Anthus nilghiriensis through both fieldwork and literature survey. We combine our mist-net-based capture data with museum records that appear to indicate a smaller distributional range for the species than indicated by secondary sighting records. We argue that the species is limited to grasslands above 1900 m. Using GIS methodology, we estimate the area of this habitat to be only 441 sq. km. Spread over just two mountain-tops, our analyses indicate a drastic reduction from the presently projected distribution, making this species one of the most restricted-range birds in India. We discuss potential causes for this discrepancy, including misidentification, which may mislead potential conservation action for such threatened birds. We propose palaeoclimatic changes to be the cause for the present distribution limit to the two large mountains (Nilgiris hills and Anamalai-Palani hills), while anthropogenic habitat modifications may limit the distribution at a finer scale within these mountains. Given the combined effect of historical large-scale landscape modification in this region and the possibility of climate change affecting this species, the Nilgiri Pipit and its habitat appear to be under considerable threat and the bird requires urgent conservation measures, starting with an elevation of IUCN threat level to 'Endangered'.
540			\|a © 2014 Current Science Association
650		4	\|a Biological sciences \|x Biology \|x Conservation biology \|x Conservation agriculture \|x Habitat conservation
650		4	\|a Environmental studies \|x Environmental sciences \|x Climate change
650		4	\|a Biological sciences \|x Biology \|x Zoology \|x Animals \|x Birds
650		4	\|a Physical sciences \|x Earth sciences \|x Geography \|x Geodesy \|x Cartography \|x Maps
650		4	\|a Biological sciences \|x Biology \|x Botany \|x Plant ecology \|x Forest ecology \|x Forest ecosystems \|x Forest habitats
650		4	\|a Biological sciences \|x Ecology \|x Ecosystems \|x Biomes \|x Grasslands \|x Woodland grasslands
650		4	\|a Business \|x Industry \|x Industrial sectors \|x Manufacturing industries \|x Consumer goods industries \|x Clothing industry \|x Clothing \|x Clothing accessories \|x Sashes \|x Obis
650		4	\|a Biological sciences \|x Ecology \|x Applied ecology \|x Environmental management \|x Natural resource management \|x Ecosystem management \|x Grassland management
650		4	\|a Environmental studies \|x Environmental quality \|x Environmental degradation \|x Habitat destruction \|x Habitat loss
650		4	\|a Biological sciences \|x Wildlife studies \|x Wildlife management \|x Wildlife conservation \|x RESEARCH ARTICLES
655		4	\|a research-article
700	1		\|a Vishnudas, C. K. \|e verfasserin \|4 aut
700	1		\|a Ramakrishnan, Uma \|e verfasserin \|4 aut
773	0	8	\|i Enthalten in \|t Current Science \|d Current Science Association \|g 107(2014), 4, Seite 622-630 \|w (DE-627)320574393 \|w (DE-600)2016870-6 \|x 00113891 \|7 nnns
773	1	8	\|g volume:107 \|g year:2014 \|g number:4 \|g pages:622-630
856	4	0	\|u https://www.jstor.org/stable/24103534 \|3 Volltext
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