Biodiversitas Journal of Biological Diversity
Vol. 20 No. 1 (2019)

The sufficiency of existed protected areas in conserving the habitat of proboscis monkey (Nasalis larvatus)

WARDATUTTHOYYIBAH WARDATUTTHOYYIBAH (Faculty of Forestry, Universitas Gadjah Mada. Jl. Agro No. 1 Bulaksumur, Sleman 55281, Yogyakarta, Indonesia.)
SATYAWAN PUDYATMOKO (Faculty of Forestry, Universitas Gadjah Mada. Jl. Agro No. 1 Bulaksumur, Sleman 55281, Yogyakarta, Indonesia.)
SENA ADI SUBRATA (Faculty of Forestry, Universitas Gadjah Mada. Jl. Agro No. 1 Bulaksumur, Sleman 55281, Yogyakarta, Indonesia.)
MUHAMMAD ALI IMRON (Faculty of Forestry, Universitas Gadjah Mada. Jl. Agro No. 1 Bulaksumur, Sleman 55281, Yogyakarta, Indonesia.)



Article Info

Publish Date
01 Jan 2019

Abstract

Wardatutthoyyibah, Pudyatmoko S, Subrata SA, Imron MA. 2019. The sufficiency of existed protected areas in conserving the habitat of proboscis monkey (Nasalis larvatus). Biodiversitas 20: 1-10. Proboscis monkey (Nasalis larvatus) is an endemic species on the island of Borneo. Their population size progressively decreased because they are very sensitive to any habitat destruction and human activity. The population of proboscis monkey in 2008 was estimated at only approximately 25,000 in total, of which only 5,000 within the conservation areas. However so, the continuation of habitat degradation is hardly prevented in non-protected areas. To solve the problem, the Indonesian government commits to increase the population of the proboscis monkey, particularly outside the protected areas. To support this goal, the distribution data of N. larvatus for conservation planning has become necessary. This study aims to build predictive models of the N. larvatus in Kalimantan and to measure how big the overlap between the habitat and the land use activity (protected areas, concession areas, plantation, and agriculture areas). The study used the Species Distribution Modelling (SDM) approach and Maximum Entropy (MaxEnt) software. We collected recent data from N. larvatus and a number of environmental variables. The result shows that only 5% of the total of Kalimantan area is suitable for their habitat. The overlap between N. larvatus distribution, land use, and land cover map reveals that only 9% of the distribution lies in protected areas, while 37% lies in concession areas and 27% lies in agriculture and plantations areas. We discuss the spatial distribution of the model and current situation of the land use policy in Kalimantan to provide scientific guidance for the Indonesian government to make a master plan for conserving endangered species N. larvatus.

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Journal Info

Abbrev

biodiv

Publisher

Subject

Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology

Description

The Biodiversitas Journal was first published in 2000 by the Department of Biology, FMNS, Universitas Sebelas Maret, Surakarta, Indonesia, then in 2006 it was co-published by the Society for Indonesian Biodiversity and that department; since 2017 it was also hosted by Smujo. From 2003-2012 it was ...