Distribution survey of Kloss’s Gibbons (Hylobates klosii) in Mentawai Islands, Indonesia
| Autor: | Yoan Dinata, Arif Setiawan, Ismael Saumanuk, Darmawan Liswanto, Christian Simanjuntak, Anjar Rafiastanto, Damianus Tateburuk |
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| Rok vydání: | 2020 |
| Předmět: |
0106 biological sciences
Hylobates klossii biology Road construction QH301-705.5 National park business.industry 05 social sciences Distribution (economics) Plant Science biology.organism_classification 010603 evolutionary biology 01 natural sciences Archaeology Geography Habitat Hylobates 0501 psychology and cognitive sciences Animal Science and Zoology auditory sampling conservation distribution gibbon mentawai 050102 behavioral science & comparative psychology Biology (General) business Transect Molecular Biology |
| Zdroj: | Biodiversitas, Vol 21, Iss 5 (2020) |
| ISSN: | 2085-4722 1412-033X |
| Popis: | Setiawan A, Simanjuntak C, Saumanuk I, Tateburuk D, Dinata Y, Liswanto D, Rafiastanto A. 2020. Distribution survey of Kloss’s Gibbons (Hylobates klosii) in Mentawai Islands, Indonesia. Biodiversitas 21: 2224-2232. The aim of this study was to assess the population density, distribution, habitats, and threats of Kloss’s gibbon (Hylobates klossii) in the Mentawai Islands, Indonesia. In 2011-2012 we conducted a survey on Siberut Island, outside of the National Park, as well as a short visit to Sipora, North Pagai, and South Pagai. From March to September 2017, we surveyed once again some previous localities on the Siberut and Sipora islands to keep up to date with recent developments on the ground. On Siberut we used an auditory sampling method through fixed point counts, combined with line transects, to estimate the gibbon densities. In total, 113-morning calls were recorded from 13 Listening Points; 75 of these were used for density calculations. We recorded 35 individuals based on direct sightings during 66.4 km of transect distance walked. We found 13 localities outside of Siberut National Park that still have Kloss's gibbons; densities varied between 1.04group/km2 to 4.16 group/km2. No gibbons were found and heard during the short survey in Sipora and South Pagai, though we found a group of gibbons in North Pagai. Our 2017 survey revealed massive habitat changes in South Siberut. Previously existing forest localities in South Siberut were gone due to road construction, agriculture expansion, and logging. |
| Databáze: | OpenAIRE |
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