Use of sleeping trees by ursine colobus monkeys (Colobus vellerosus) demonstrates the importance of nearby food.

Primates; Journal of Primatology
Julie A TeichroebPascale Sicotte

Abstract

Examination of the characteristics and locations of sleeping sites helps to document the social and ecological pressures acting on animals. We investigated sleeping tree choice for four groups of Colobus vellerosus, an arboreal folivore, on 298 nights at the Boabeng-Fiema Monkey Sanctuary, Ghana using five non-mutually exclusive hypotheses: predation avoidance, access to food, range and resource defense, thermoregulation, and a null hypothesis of random selection. C. vellerosus utilized 31 tree species as sleeping sites and the species used differed per group depending on their availability. Groups used multiple sleeping sites and minimized their travel costs by selecting trees near feeding areas. The percentage that a food species was fed upon annually was correlated with the use of that species as a sleeping tree. Ninety percent of the sleeping trees were in a phenophase with colobus food items. Entire groups slept in non-food trees on only one night. These data strongly support the access to food hypothesis. Range and resource defense was also important to sleeping site choice. Groups slept in exclusively used areas of their home range more often than expected, but when other groups were spotted on the edge of the core area,...Continue Reading

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Citations

Apr 4, 2013·Folia primatologica; international journal of primatology·Bright O Kankam, Pascale Sicotte
May 9, 2014·American Journal of Primatology·Katie L Feilen, Andrew J Marshall
Apr 14, 2017·Folia primatologica; international journal of primatology·Elvis J RakotomalalaRebecca J Lewis
Sep 27, 2020·Scientific Reports·Yosuke OtaniIkki Matsuda
Dec 19, 2020·American Journal of Primatology·Alexandre SuireAkiko Matsumoto-Oda

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