Bukit-Baka - Bukit Raya National Park in West-Central Kalimantan, Indonesia, is an area which has high diversity, including amphibians. Unfortunately, only a little information about amphibians has been recorded from there (Iskandar, 2004). The Amphibians of Bukit Baka-Bukit Raya National Park were investigated for a one month period in July – August 2007. Surveying was conducted in ten locations that are grouped into two areas: forest trail and streams. A number of amphibian species were directly observed during this time using visual encounter survey, line transect and hand collecting methods. In order to obtain sufficient data, we performed quantitative analysis using quadrates (30 m X width of river). Each quadrate was assessed for three constitutive nights when possible. Following that work, a total of 1105 individual from 43 species belonging to the family of Ranidae, Bufonidae, Microhylidae, Rhacophoridae, Dicroglosidae, and Megophryidae were collected. The family of Ranidae (relative abundance = 56.47%) dominated the area with Odorrana hosii being the most abundant (197 individuals). This result actually did not really describe the diversity of amphibians in Bukit-Baka - Bukit Raya National Park since the number of species captured everyday was still increasing.
References:
Iskandar, D.T. (2004). The Amphibians and Reptiles of Malinau Region. Center For International Forestry Research.
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