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Research Article

Estimation of Group Size, Age and Sex Composition of Evident Prey Species in the Segur Plateau, Nilgiri Biosphere Reserve

Manoj K1, Boon Allwin2* and Stalin Vedamanickam2

1Forest College and Research Institute, TNAU, Mettupalayam, Tamil Nadu, India

2Madras Veterinary College, TANUVAS, Chennai, Tamil Nadu, India

*Corresponding Author:
Boon Allwin
Madras Veterinary College
TANUVAS, Chennai
Tamil Nadu, India
Tel: + 044 2530 4000
E-mail: boonallwin@gmail.com

Received Date: July 21, 2015 Accepted Date: September 14, 2015 Published Date: September 18, 2015

Citation: Manoj K, Allwin B, Vedamanickam S (2015) Estimation of Group Size, Age and Sex Composition of Evident Prey Species in the Segur Plateau, Nilgiri Biosphere Reserve. J Ecosys Ecograph 5:168. doi:10.4172/2157-7625.1000168

Copyright: © 2015 Manoj K, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

Abstract

Segur Plateau is part of Mudumalai Tiger Reserve; the reserve extends over an area of 321 km2 and forms a part of the Nilgiri Biosphere Reserve. The sanctuary is located in the Western Ghats, which is one of the 34 Biodiversity hotspots of the world. This study was conducted to determine the population structure and evaluate the population density of different potential prey species in the segur plateau. In order to know the population structure and density, the line-transect sampling method were used. The overall individual density (number/km2) were chital (68), sambar (7.7), gaur (8.6), black napped hare (5.31), elephant (1.7) and wild pig (3.0). The chital being predominant compared to other herbivores. The mean group size of black napped hare 1.16, elephant 4.08, gaur 6.58, sambar 3.50, chital 4.08, wild pig 3.00 were calculated respectively. Age composition was also calculated, black napped hare group size range between 1 to 4 were recorded and elephant 1 to 30, gaur 1 to 80, sambar from 1 to 12, chital 1 to 150, wild pig 1 to 9. The sex ratio for elephant (1:0.5), gaur (1:3.25), sambar (1:10.6), chital (1:1.37) was estimated and it was indeterminate for wild pigs and black napped hares due to fast movement of the animals and their nocturnal behaviour.

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