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Linking Critical Patches of Sloth Bear Melursus ursinus for their Conservation in Meghamalai Hills, Western Ghats, India


Affiliations
1 Salim Ali Centre for Ornithology and Natural History, Anaikatty, Coimbatore 641 108, India
2 Wildlife Information Liaison Development Society, 96, Kumudham Nagar, Vilankurichi Road, Coimbatore 641 035, India
 

The study examines the distribution and factors regulating the sloth bear in a fragmented hills of Meghamalai in Western Ghats through occupancy framework. Indirect evidences were sought over 133 grids of 4 sq. km size between December 2011 and December 2012. Indirect evidences were recorded in 58 of 133 sampled grids that estimated naїve occupancy of 0.43 (p = 0.3180). Understorey cover negatively affected the detection of indirect evidences. The parsimonious model contained three covariates, viz. tree height, grass cover and anthropogenic disturbance. Overall occupancy of bear was 0.54, which is 25% higher than the naїve occupancy estimate. The study predicted higher proportion of evergreen forests with intermediate grass cover and less extent of disturbance determines the occupancy of bear in these hills. The 'critical link' connecting Periyar-Agastiyamalai hills and Anamalai hills is still active and supports high suitable sites for bears. It is suggested that Ammagajam-Upper Manalar Contiguity and Critical Link needs to be protected by appending with Meghamalai Wildlife Sanctuary.

Keywords

Conservation, Critical Patches, Sloth Bear, Surrogate Species.
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  • Linking Critical Patches of Sloth Bear Melursus ursinus for their Conservation in Meghamalai Hills, Western Ghats, India

Abstract Views: 270  |  PDF Views: 111

Authors

Santhanakrishnan Babu
Salim Ali Centre for Ornithology and Natural History, Anaikatty, Coimbatore 641 108, India
Tamilarasu Karthik
Wildlife Information Liaison Development Society, 96, Kumudham Nagar, Vilankurichi Road, Coimbatore 641 035, India
Gopalakrishnan Srinivas
Salim Ali Centre for Ornithology and Natural History, Anaikatty, Coimbatore 641 108, India
Honnavalli Nagaraj Kumara
Salim Ali Centre for Ornithology and Natural History, Anaikatty, Coimbatore 641 108, India

Abstract


The study examines the distribution and factors regulating the sloth bear in a fragmented hills of Meghamalai in Western Ghats through occupancy framework. Indirect evidences were sought over 133 grids of 4 sq. km size between December 2011 and December 2012. Indirect evidences were recorded in 58 of 133 sampled grids that estimated naїve occupancy of 0.43 (p = 0.3180). Understorey cover negatively affected the detection of indirect evidences. The parsimonious model contained three covariates, viz. tree height, grass cover and anthropogenic disturbance. Overall occupancy of bear was 0.54, which is 25% higher than the naїve occupancy estimate. The study predicted higher proportion of evergreen forests with intermediate grass cover and less extent of disturbance determines the occupancy of bear in these hills. The 'critical link' connecting Periyar-Agastiyamalai hills and Anamalai hills is still active and supports high suitable sites for bears. It is suggested that Ammagajam-Upper Manalar Contiguity and Critical Link needs to be protected by appending with Meghamalai Wildlife Sanctuary.

Keywords


Conservation, Critical Patches, Sloth Bear, Surrogate Species.



DOI: https://doi.org/10.18520/cs%2Fv109%2Fi8%2F1492-1498