Distribution and status of threatened and endemic marsupials on the offshore islands of south-east Sulawesi, Indonesia

Martin, Thomas E.; Monkhouse, Joseph; O'Connell, Darren P.; Analuddin, Kangkuso; Karya, Adi; Priston, Nancy E. C.; Palmer, Charlotte A.; Harrison, Barnabas; Baddams, Jack; Mustari, Abdul H.; Wheeler, Philip M. and Tosh, David G. (2019). Distribution and status of threatened and endemic marsupials on the offshore islands of south-east Sulawesi, Indonesia. Australian Mammalogy, 41(1) pp. 76–81.

DOI: https://doi.org/10.1071/AM17052

Abstract

We highlight hitherto unreported populations of two globally threatened phalangerid species on south-east Sulawesi’s offshore islands – bear cuscus (Ailurops ursinus) and small Sulawesi cuscus (Strigocuscus celebensis) – and observations of a third range-restricted species – Peleng cuscus (Strigocuscus pelengensis). Our data are based on records made during 11 years of seasonal surveys on Buton, and short-term expeditions to Kabaena and Manui. Our observations of S. celebensis on Buton, where it occurs in three protected areas, represent an important range extension for this species, as do our observations of A. ursinus on Kabaena, where it is also widespread. We also report the unexpected presence of S. pelengensis on Manui. Buton, in particular, appears to be an important stronghold for both A. ursinus and S. celebensis, given that forest ecosystems here remain extensive and relatively intact. Both these species may also display a previously unreported adaptability to disturbed forest and even some non-forest habitats within our study area. Hunting pressures, a proven threat to these species in northern Sulawesi, may also be lesser here.

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