Population size, Red List status and conservation of the Natuna leaf monkey Presbytis natunae endemic to the island of Bunguran, Indonesia

We present the first population estimate for the Natuna leaf monkey Presbytis natunae, endemic to the island of Bunguran, Indonesia, based on a 2-month survey. Bunguran has a land area of only 1,605 km2 and was until 1980 largely covered in primary forest. At present primary forest exists only in sm...

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Bibliographic Details
Published in:Oryx 2003-10, Vol.37 (4), p.472-479
Main Authors: Lammertink, Martjan, Nijman, Vincent, Setiorini, Utami
Format: Article
Language:English
Subjects:
Biodiversity
Bunguran
endemic
Indonesia
Islands
logging
Monkeys & apes
Museums
Nature Conservation and Plant Ecology
Natuurbeheer en Plantenecologie
Plant Ecology and Nature Conservation
Plantenecologie en Natuurbeheer
Presbytis femoralis
Presbytis natunae
primate
Red List
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Summary:We present the first population estimate for the Natuna leaf monkey Presbytis natunae, endemic to the island of Bunguran, Indonesia, based on a 2-month survey. Bunguran has a land area of only 1,605 km2 and was until 1980 largely covered in primary forest. At present primary forest exists only in small patches within a matrix of logged forest, which covers nearly 70% of the island. Natuna leaf monkeys are confined to forest and have a preference for primary lowland forest patches. Groups average 3.5 ± SD 2.0 individuals and occur in a density of 2.3 ± SD 1.1 groups per km2. Extrapolation of the density estimates to the entire island indicates that
ISSN:0030-6053
1365-3008
DOI:10.1017/S003060530300084X