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Cloud rats in the Philippines — preliminary report on distribution and status

  • W. L. R. Oliver (a1), C. R. Cox (a2), P. C. Gonzales (a3) and L. R. Heaney (a4)
Abstract

This paper describes a preliminary field survey of bushy-tailed cloud rats Crateromys spp. and slender-tailed cloud rats Phloeomys in the Philippines in April and May 1990. Brief visits were made to all islands/locations known to support these animals and also to neighbouring areas considered likely to do so. Comparing the results with information from previous surveys suggests that both genera, particularly Crateromys, are more widely distributed than formerly believed, but that some forms are threatened. Three of the four known species of Crateromys are known only from their holotype specimens, one of which awaits description. Another is extinct in its type locality on Ilin Island but may survive on neighbouring Mindoro. These preliminary findings indicate that thorough surveys are required to establish the status of certain species, to investigate the possibility that new species remain undiscovered and to develop conservation plans to reduce the likelihood of further extinctions occurring.

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Copyright
References
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Cox, C.R. 1987. A Preliminary Survey of the Proposed Panay Mountains National Park. Unpubl. report to the Zoologischer Garten Berlin. 44 pp.
Forest Management Bureau, 1988. Natural Forest Resources of the Philippines. Philippine-German Forest Resources Inventory Project, Forest Management Bureau, Department of the Environment and Natural Resources, Manila. 62 pp.
Heaney, L.R. 1986. Biogeography of mammals in South East Asia: estimates of rates of colonization, extinction and speciation. Biol. J. Linn. Soc. 28, 127165.
Heaney, L.R., Gonzales, P.C. and Alcala, A.C. 1987. An annotated checklist of the taxonomic and conservation status of land mammals in the Philippines. Silliman J. 34 (1–4), 3266.
Heaney, L.R., Gonzales, P.C, Utzurrum, R.C.B. and Rickart, E.A. 1991. The mammals of Catanduanes island: implications for the biogeography of small land-bridge islands in the Philippines. Proc. Biol. Soc. Wash. 104 (2), 399415.
Musser, G.G. and Gordon, L.K. 1981. A new species of Crateromys (Muridae) from the Philippines. J.Mamm. 62 (3), 513525.
Musser, G.G., Heaney, L.R. and Rabor, D.S. 1985. Philippine rats: a new species of Crateromys from Dinagat Island. Amer. Mus. Novitates, 2821, 125.
Oliver, W.L.R. and Cox, C.R. 1990. Distribution and Status of the Philippine Cloud Rats. Unpubl. report, 33 pp.
Oliver, W. L. R., Cox, C. R. and Dolar, L. 1991. The Philippine Spotted Deer Conservation Project. Oryx, 25, 199205.
Pritchard, J.S. 1989. Ilin Island cloud rat extinct? Oryx, 23, 126.
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Oryx
  • ISSN: 0030-6053
  • EISSN: 1365-3008
  • URL: /core/journals/oryx
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