Habitat suitability of Proboscis Monkey Nasalis larvatus Wurmb. in Muara Kaman Sedulang Nature Reserve, East Kalimantan

Proboscis monkey ( Nasalis larvatus Wurmb.) is an endemic primate species to Borneo’s island. Muara Kaman Sedulang Nature Reserve is one of protected area for this species in the island, but it’s riverine habitat is largely lost by forest fires and conversion for aquaculture, agriculture and settlem...

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Bibliographic Details
Published in:IOP conference series. Earth and environmental science 2023-12, Vol.1282 (1), p.12018
Main Authors: Hidayat, A, Sulistioadi, Y B, Kustiawan, W, Sukartiningsih, Haryanto, Z, Suba, R B
Format: Article
Language:English
Subjects:
Aquaculture
Conservation
Endemic species
Environmental restoration
Forest fires
Geographical distribution
Habitats
Land cover
Maximum entropy
Monkeys
Nasalis larvatus
Nature reserves
Performance evaluation
Proboscis
Protected areas
Protected species
Spatial data
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Summary:Proboscis monkey ( Nasalis larvatus Wurmb.) is an endemic primate species to Borneo’s island. Muara Kaman Sedulang Nature Reserve is one of protected area for this species in the island, but it’s riverine habitat is largely lost by forest fires and conversion for aquaculture, agriculture and settlements. A conservation action in the area needs spatial information regarding the habitat suitability of proboscis monkey. This study aimed to project a spatial model for habitat suitability of proboscis monkey in the reserve through species distribution modelling (SDM) using the Maximum Entropy (MaxEnt), based on the species’ occurrence records and environmental predictors. The results showed that suitable habitat for proboscis monkey was 3,410.27 ha (5.22% of the nature reserve total area). Model performance evaluation shows an accuracy of the Area Under Curve (AUC) value of 0.940, which is a very good category. Jackknife-test results showed the presence of secondary swamp forest (40.8%), distance from water bodies (25.9%), land cover (12.4%), secondary forest (6.3%) and mixed gardens (5.1%) are five variables that significantly contribute to the distribution of proboscis monkeys in the reserve. This study provides suggestions for conservation of proboscis monkey in remaining suitable habitat, which include local people involvement, monitoring and habitat restoration.
ISSN:1755-1307
1755-1315
DOI:10.1088/1755-1315/1282/1/012018