Persistence of Trachypithecus Geei (Mammalia: Primates: Cercopithecidae) in a Rubber Plantaton in Assam, India

Document Type

Article

Publication Title

Journal of Threatened Taxa

Abstract

Non-human primates are highly threatened as a result of habitat destructon, agricultural expansion, industrial development, large-scale build-ups and wildlife trafcking. Nearly 60% of all primates are threatened and many are found in habitats with some form of human modifcatons (e.g., croplands and plantatons). The adaptability of primates to survive in human-modifed habitats is thus a key to determine their persistence in anthropogenic landscapes. In this study, we examined the populaton number and age-sex compositon of the ‘Endangered’ Golden Langur Trachypithecus geei in a rubber plantaton in the Kokrajhar District in Assam, India in 2016, and compared with past data of the langur populaton and demographics from the same locaton to beter understand the populaton dynamics, demographic characters and persistence of the Golden Langurs in the rubber plantaton. In 2016, we recorded six groups of Golden Langurs totaling 78 individuals with a mean group size of 13.00±4.00SD. Of the total populaton, 10.29% were adult males, 41.18% were adult females, 32.35% were juveniles and 16.18% were infants. The overall populaton growth from 1997 to 2016 was estmated to be 5.54% per year. Habitat matrices of rubber plantatons with natural forest patches are important in the fragmented landscape for the persistence of Golden Langur populatons. They may also act as a corridor for the langurs to move between the fragments and as food resources, highlightng the importance of such matrices for the langurs outside protected areas. Populaton monitoring and ecological studies in such matrices would therefore be needed for the successful implementaton of targeted management strategies for the conservaton of these threatened langurs.

First Page

18679

Last Page

18686

DOI

10.11609/jott.7273.13.7.18679-18686

Publication Date

1-1-2021

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