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Island-wide distribution of Sri Lankan primates based on a questionnaire survey of residents


Pastorini, Jennifer; De Silva, M K C R; Jayasinghe, L K A; Fernando, Prithiviraj (2020). Island-wide distribution of Sri Lankan primates based on a questionnaire survey of residents. Asian Primates Journal, 9(1):online.

Abstract

Five primate species, representing three genera and 12 subspecies, occur in Sri Lanka. We conducted an island-wide questionnaire survey of primate presence/absence, based on a 5x5 km grid with three questionnaires administered to residents in each cell. Respondents were queried on the presence of Slender Lorises, Toque Macaques, Sri Lankan Sacred Langurs and Purple-faced Langurs in their neighbourhood. Results indicated that Slender Lorises and Toque Macaques were distributed over 88% and 90% of Sri Lanka, respectively, including the wet and dry zones, but with patchy wet-zone distributions. Sri Lankan Sacred Langurs were present over 86% of the island but absent from large parts of the wet zone. Purple-faced Langurs were distributed over 53% of Sri Lanka with a disjunct distribution consisting of a patchy dry-zone presence and a more uniform wet-zone distribution. The maps presented are the first based on a systematic island-wide survey. We discuss the implications of the observed distributions for primate taxonomy and conservation

Abstract

Five primate species, representing three genera and 12 subspecies, occur in Sri Lanka. We conducted an island-wide questionnaire survey of primate presence/absence, based on a 5x5 km grid with three questionnaires administered to residents in each cell. Respondents were queried on the presence of Slender Lorises, Toque Macaques, Sri Lankan Sacred Langurs and Purple-faced Langurs in their neighbourhood. Results indicated that Slender Lorises and Toque Macaques were distributed over 88% and 90% of Sri Lanka, respectively, including the wet and dry zones, but with patchy wet-zone distributions. Sri Lankan Sacred Langurs were present over 86% of the island but absent from large parts of the wet zone. Purple-faced Langurs were distributed over 53% of Sri Lanka with a disjunct distribution consisting of a patchy dry-zone presence and a more uniform wet-zone distribution. The maps presented are the first based on a systematic island-wide survey. We discuss the implications of the observed distributions for primate taxonomy and conservation

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Item Type:Journal Article, not_refereed, original work
Communities & Collections:07 Faculty of Science > Department of Anthropology
Dewey Decimal Classification:300 Social sciences, sociology & anthropology
Language:English
Date:2020
Deposited On:18 Jan 2021 16:31
Last Modified:18 Jan 2021 16:36
Publisher:IUCN/SSC Primate Specialist Group
ISSN:1979-1631
OA Status:Green
Free access at:Publisher DOI. An embargo period may apply.

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