(I) Physical CharacteristicsKulamba Wildlife Reserve lies between Dewhurst Bay and the lower Sungai Segama, on the north coast of the Dent Peninsula in eastern Sabah. The reserve is flat with several isolated, locally steep hills rising to about 70 m asl in the south and middle region. Much of the reserve is swampy, with acidic soils, and peat in some parts.(II) Climatic ConditionsThe climate is hot and humid, with a mean daily maximum temperature of about 32oC. Average annual rainfall is about 3,050 mm. The December-January period has the highest rainfall, with a lesser peak in May-June (Payne, 1985).
A survey in April 1984 recorded 59 resident bird species (Payne, 1985). The reserve's mixture of wetland and dry lowland forest and its contiguity with the Kinabatangan floodplains provides an important habitat for several resident (and presumably migrants too) globally threatened waterbirds and lowland specialist such as the Wrinkled Hornbill Rhyticeros corrugatus. Other Near Threatened species recorded is the Oriental Darter Anhinga melanogaster.
Non-bird biodiversity: Eighteen species of mammals have been reported inhabiting the reserve (Payne, 1985). (I) Globally threatened mammals (IUCN, 2002): ENDANGERED: Tembadau Bos javanicus, Proboscis Monkey Nasalis larvatus; VULNERABLE: [Marbled Cat Pardofelis marmorata]; NEAR THREATENED: Bornean Gibbon Hylobates muelleri, Long-tailed Macaque Macaca fascicularis; DATA DEFICIENT: Malayan Sun Bear Helarctos malayanus(II) Globally threatened reptiles (IUCN, 2002): No information.(III) Globally threatened plants (IUCN, 2002): CRITICAL: Dipterocarpus validus; ENDANGERED: Shorea leprosula; VULNERABLE: Cynometra inaequifolia, Aquilaria malaccensisNote: [ ] = unconfirmed record.
BirdLife International (2019) Important Bird Areas factsheet: Kulamba Wildlife Reserve. Downloaded from http://www.birdlife.org on 17/07/2019.