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Microhabitat preferences and guild structure of a tropical reptile community from the Western Ghats of India: implications for conservation

Published online by Cambridge University Press:  19 May 2022

V.J. Jins Open the ORCID record for V.J. Jins [Opens in a new window] ,
Aditi Mukherjee Open the ORCID record for Aditi Mukherjee [Opens in a new window] ,
P.R. Arun Open the ORCID record for P.R. Arun [Opens in a new window] ,
Damian R. Michael Open the ORCID record for Damian R. Michael [Opens in a new window]  and
Subramanian Bhupathy
V.J. Jins*
Affiliation:
Sálim Ali Centre for Ornithology and Natural History (SACON), Coimbatore, Tamil Nadu641108, India Department of Zoology, School of Life Sciences, Sikkim University, Gangtok, Sikkim737102, India
Aditi Mukherjee
Affiliation:
Sálim Ali Centre for Ornithology and Natural History (SACON), Coimbatore, Tamil Nadu641108, India
P.R. Arun
Affiliation:
Sálim Ali Centre for Ornithology and Natural History (SACON), Coimbatore, Tamil Nadu641108, India
Damian R. Michael
Affiliation:
Gulbali Institute, Charles Sturt University, Albury, New South Wales2640, Australia
Subramanian Bhupathy
Affiliation:
Sálim Ali Centre for Ornithology and Natural History (SACON), Coimbatore, Tamil Nadu641108, India
*
Author for correspondence: V.J. Jins, Email: [email protected]
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Abstract

Microhabitat characteristics can be used as a proxy to predict the community structure of associated organisms and evaluate their vulnerability to habitat degradation. Microhabitat-specific and ectothermic taxa (like many reptiles) are among the best models to study responses to changing habitats and climate. We examined the niche breadth and guild structure of reptiles from Agasthyamalai Hills in the southern Western Ghats of India based on microhabitat use data. We recorded a total of 47 reptile species from 1,554 observations comprising two major orders and 11 families. Niche breadth analysis revealed that 45% of reptiles are microhabitat specialists, indicating the importance of protecting their habitats with all structural attributes. Cluster analysis grouped reptile species into four major guilds based on microhabitat preferences. The forest floor-dwelling guild was the largest group with 25 species, followed by the semi-arboreal guild with 12 species. The floor-dwelling guild also exhibited both the highest number of microhabitat specialists (n = 11) and globally threatened species (n = 3), highlighting the need for preserving ground cover characteristics such as leaf litter, boulders, and open ground for conserving reptiles in the region. Considering the microhabitat specializations within the community, we recommend a dynamic approach to monitor abundance, diversity, and habitat quality across the Agasthyamalai landscape to better conserve its rich reptile diversity.

Keywords

Agasthyamalai Biosphere Reserveecological nicheguild classificationhabitat conservationherpetofauna
Type
Research Article
Information
Journal of Tropical Ecology , Volume 38 , Issue 5 , September 2022 , pp. 295 - 303
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Copyright
© The Author(s), 2022. Published by Cambridge University Press

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Footnotes

#

Deceased on 28th April 2014

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