The Diversity of Mammals in the Wehea-Kelay Landscape, East Kalimantan

The Wehea-Kelay landscape is an area with a tropical rainforest ecosystem which is the habitat for various types of mammals. Ecologically, the existence of mammal species plays role in maintaining the balance of the forest ecosystem, thus the balance of a forest ecosystem can be measured by the level of species diversity. The aim of this study is to determine the diversity, conservation status, relative abundance of mammal species, and the sepan conditions in the Wehea-Kelay landscape. The research was conducted from January to June 2020. The data collection method was the direct observation, signs searching, camera traps, and data analysis. The results of this study are 12 species, 9 families, and 4 orders of mammals were found. Based on the conservation status, 6 species as protected animals, 1 species is critically endangered, and 2 species are in appendix I. Overall, the highest relative abundance of mammals based on the presence frequency of the camera traps is M. muntjak and the lowest is T. kanchil. The species of mammals found based on the encounter rate in the Wehea Protected Forest were more than PT. Gunung Gajah Abadi, and the highest abundance of mammals is 1.67±1.529 individuals/km in Wehea Protected Forest and 1.00±1.00 individuals/km in PT. Gunung Gajah Abadi of H. malayanus. The feeding class of mammals found consisted of 9 species of Omnivores and 3 species of Herbivores. The sepan area in the Wehea Protected Forest is an area that must be conserved because it is a source of minerals for mammals.