Effect of anthropogenic activities on the population of moor macaques (Macaca maura) in South Sulawesi, Indonesia

Beltrán Francés, Victor, Spaan, Denise, Amici, Federica , Maulany, Risma Illa, Oka, Ngakan Putu and Majolo, Bonaventura (2022) Effect of anthropogenic activities on the population of moor macaques (Macaca maura) in South Sulawesi, Indonesia. International Journal of Primatology, 3 . ISSN 0164-0291

Full content URL: https://doi.org/10.1007/s10764-022-00279-x

Effect of anthropogenic activities on the population of moor macaques (Macaca maura) in South Sulawesi, Indonesia
Published Open Access manuscript
2022 Beltrán Francés et al IJP.pdf - Whole Document
Available under License Creative Commons Attribution 4.0 International.

Item Type:Article
Item Status:Live Archive


Forest loss due to anthropogenic activities is one of the main causes of plant and animal species decline. Studying the species’ population status (i.e. density, abundance and geographic distribution), on a regular basis, is one of the main tools to assess the effect of anthropogenic activities in wildlife, to monitor population dynamics and to intervene with effective conservation strategies when the population of an endangered species declines. On Sulawesi Island, Indonesia, anthropogenic activities, like agriculture, are diminishing the remaining natural habitats available for several endemic and endangered species. The effect of this forest loss on the threatened moor macaques (Macaca maura) in South Sulawesi is unknown, and data on the population status of this species are needed to design effective conservation strategies. To assess the population status of the moor macaques, we walked linear transects (N = 29, survey effort = 114 km) at 6 sites between November 2019 and March 2020 to estimate macaque population density and encounter rate. We tested the effect of anthropogenic activities on macaque encounter rate. Our global density estimate (24 individuals/km2) was lower than the overall estimate from the most detailed survey conducted on this species, which covered its whole geographic distribution (36.1 individuals/km2). However, these results should be interpreted with caution because the previous density estimate falls within the confidence intervals of our estimate. Furthermore, we found regional declines in moor macaque encounter rates in at least two sites compared to previous studies. We found a high presence of anthropogenic activity in the forests inhabited by macaques. Moor macaques were less abundant in open areas with no forest (i.e., clear cuttings) than in forested areas, and in the presence of non-species-specific hunting traps (i.e., wire-loop traps). Moreover, moor macaques were more abundant in areas with a higher presence of humans and domestic animals. Overall, our data suggest that the population of this species may be declining in certain regions but further surveys are needed to corroborate whether this is occurring across the entire geographic distribution.

Keywords:Macaca, Macaca maura, biological conservation, Endangered species
Subjects:C Biological Sciences > C800 Psychology
Divisions:College of Social Science > School of Psychology
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ID Code:48371
Deposited On:23 Feb 2022 12:11

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