The pattern of waterbird diversity of the trans-Himalayan wetlands in Changthang Wildlife Sanctuary, Ladakh, India
| Autor: | Jigmet Takpa, Pushpinder Singh Jamwal, Shivam Shrotriya |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
migratory birds
lcsh:QH1-199.5 Wildlife Wetland lcsh:General. Including nature conservation geographical distribution Management Monitoring Policy and Law black-necked crane lcsh:QH540-549.5 IUCN Red List point count survey Ecology Evolution Behavior and Systematics Nature and Landscape Conservation geography.geographical_feature_category Near-threatened species biology Ecology Species diversity Grus (genus) biology.organism_classification conservation management Geography Threatened species species assemblage tourism Animal Science and Zoology lcsh:Ecology Species richness |
| Zdroj: | Journal of Threatened Taxa, Vol 12, Iss 1, Pp 15129-15139 (2020) |
| ISSN: | 0974-7907 0974-7893 |
| DOI: | 10.11609/jott.5122.12.1.15129-15139 |
| Popis: | Ladakh lies on an important bird migratory route between the Palearctic and the Indian sub-continent, and the high altitude migratory species utilise Ladakh frequently as a stopover site. The trans-Himalayan landscape in Ladakh also serves as a breeding site for many water birds species including the globally threatened Black-necked Crane Grus nigricollis. Yet, only sporadic information is available on the status and diversity of waterbirds here. In a landscape-level assessment study spanning over 27,000km2 area, we surveyed 11 major high-altitude wetlands of Changthang Wildlife Sanctuary, Ladakh during the pre-winter season of the year 2013. We recorded a total of 38 waterbird species belonging to 10 families, including one species in Vulnerable and two species in Near Threatened categories of IUCN Red List. We calculated species diversity and richness indices to compare the wetlands. Statapuk Tso and Tsokar were the most diverse wetlands of the sanctuary (Shannon diversity 2.38 and 2.08, respectively). We used principal component analysis to find out the wetlands with unique species assemblage and identify the sites with high conservation value. We also observed a directional pattern of diversity among the wetlands of Ladakh. We provide a reminder that wildlife even in protected areas should be surveyed regularly with the sources of threats to their conservation documented carefully. |
| Databáze: | OpenAIRE |
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