INNOVATION FOR CONSERVATION
WILDLANKA
Journal of the Department of Wildlife Conservation,
Sri Lanka.

RESEARCH ARTICLE

FACTORS INFLUENCING SITE OCCUPANCY OF MONTANE SLENDER LORIS (Loris tardigradus nycticeboides) IN SRI LANKA

Authors: S.N.Gamage,C.J.Hettiarachchi,C.A.Mahanayakage,U.K.G.K.Padmalal,S.W.Kotagama

S.N.Gamage

Email:
Institution:Department of Zoology, University of Colombo, Colombo 3, Sri Lanka

C.J.Hettiarachchi

Email:
Institution:Institute of Human Resource Advancement, University of Colombo, Sri Lanka

C.A.Mahanayakage

Email:
Institution:Faculty of Graduate studies, University of Colombo, Sri Lanka

U.K.G.K.Padmalal

Email:ukpad@ou.ac.lk
Institution:Department of Zoology, The Open University of Sri Lanka, Nawala, Nugegoda, Sri Lanka

S.W.Kotagama

Email:
Institution:Department of Zoology, University of Colombo, Colombo 3, Sri Lanka

Abstract

The Montane slender loris Loris tardigradus nycticeboides is an endangered and endemic primate species inhabiting the montane region of Sri Lanka. Recent studies suggested the L. t. nycticeboides should be elevated to Critically Endangered status. However, information available for the effective conservation of the L. t. nycticeboides is limited. This research was undertaken to clarify the above issues and to gather data on factors influencing the occurrence of L. t. nycticeboides using the technique of occupancy modeling. The results show that the probability of detection (p) and site occupancy (Ψ) of the L. tardigradus varied due to numerous factors such as altitude, canopy connectivity and canopy height. Most suitable habitats for L. t. nycticeboides occupancy was montane forests situated in 1600-2100m altitude with tall canopy (height >4m) and good canopy connectivity (canopy openings<25%). Focusing on reducing the negative effects of these factors from anthropogenic activities is essential to ensure that L. tardigradus conservation programs are effective.

Keywords: Loris tardigradus nycticeboides, Endangered species, Endemic species, Montane region

How to Cite: Gamage,S.N,Hettiarachchi,C.J,Mahanayakage,C.A,Padmalal,U.K.G.K,Kotagama,S.W, (2015). FACTORS INFLUENCING SITE OCCUPANCY OF MONTANE SLENDER LORIS (Loris tardigradus nycticeboides) IN SRI LANKA.WILDLANKA, 3(2):Pages 067-073

Published On:2015-06-30


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ISSN: 1800-1777

WILDLANKA
Department of Wildlife Conservation,
No: 811/A, Jayanthipura,
Battaramulla,
Sri Lanka.