Roadside monkeys: anthropogenic effects on moor macaque (Macaca maura) ranging behavior in Bantimurung Bulusaraung National Park, Sulawesi, Indonesia

A growing body of research focuses on how anthropogenic factors affect the behavior and ecology of primates and their ecosystems. Infrastructural development, such as roads, is an increasingly pervasive anthropogenic impact that destroys primate habitat, affects the distribution and dispersal of pri...

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Bibliographic Details
Published in:Primates 2021-05, Vol.62 (3), p.477-489
Main Authors: Riley, Erin P., Shaffer, Christopher A., Trinidad, Joshua S., Morrow, Kristen S., Sagnotti, Cristina, Carosi, Monica, Ngakan, Putu Oka
Format: Article
Language:English
Subjects:
Animal Ecology
Anthropogenic factors
Behavioral Sciences
Biomedical and Life Sciences
Dispersal
Dispersion
Evolutionary Biology
Food
Foraging habitats
Home range
Human influences
Life Sciences
Macaca maura
Monkeys & apes
National parks
Original Article
Primates
Provisioning
Ranging behavior
Roads
Roads & highways
Roadsides
Zoology
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Summary:A growing body of research focuses on how anthropogenic factors affect the behavior and ecology of primates and their ecosystems. Infrastructural development, such as roads, is an increasingly pervasive anthropogenic impact that destroys primate habitat, affects the distribution and dispersal of primates, and facilitates human–primate interactions. At our field site in Bantimurung-Bulusaraung National Park, Sulawesi, Indonesia, a major road bisects the habitat of the endangered moor macaque ( Macaca maura ). Beginning in 2015, we observed a behavioral shift by our main study group: they began spending more time along the road foraging in trash pits and waiting for provisions from vehicles. Our objective in this study was to examine how access to anthropogenic foods has affected the group’s ranging behavior by comparing ranging data collected before (2010–2011) and after the shift (2016–2017). In contrast to what we expected, home ranges were significantly larger and daily travel distance was significantly longer after the shift compared to before. As predicted, mean distance to the road decreased after the shift. These results likely reflect the irregular and spatially dispersed nature of provisioning at this site. The macaques appear to be attracted to the road because it presents opportunities to obtain palatable and energy-dense foods. Our results indicate that moor macaques are able to flexibly adjust their ranging behavior in response to anthropogenic impacts. However, given the risks of being in proximity to roads and humans, management of this emerging human–macaque interface is needed.
ISSN:0032-8332
1610-7365
DOI:10.1007/s10329-021-00899-6