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

This study suggests that access to food, range and resource defense, and predation avoidance were more important considerations in sleeping site selection than thermoregulation for ursine colobus.
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Effect of Group Size on Activity Budgets of Colobus vellerosus in Ghana

Intergroup comparisons suggest that time spent feeding, resting and moving did not vary in relation to group size, but intragroup comparisons between the sexes show that females in the large group spent more time feeding than males did, which suggests that scramble competition may be occurring among female Colobus vellerosus at BFMS.
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Social correlates of fecal testosterone in male ursine colobus monkeys (Colobus vellerosus): The effect of male reproductive competition in aseasonal breeders

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Infanticide in ursine colobus monkeys (Colobus vellerosus) in Ghana: new cases and a test of the existing hypotheses

Male infants may have been targeted preferentially at this site, which would support the * eliminate a future sexual rival' hypothesis, although more cases are needed to reach a firm conclusion.
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How Do Primates Survive Among Humans? Mechanisms Employed by Vervet Monkeys at Lake Nabugabo, Uganda

This work investigates how vervet monkeys survive and prosper in an extensively modified humanized landscape surrounding the Lake Nabugabo Field Station, Uganda and proposes a six-point approach to improve the conservation status of primates in such degraded habitats.
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Ecology of the gastrointestinal parasites of Colobus vellerosus at Boabeng-Fiema, Ghana: possible anthropozoonotic transmission.

Parasite richness and prevalence in wild animals can be used as indicators of population and ecosystem health, and the presence of G. duodenalis Assemblage B indicates possible anthropozoonotic and/or zoonotic transmission between humans and colobus monkeys at this site.
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Test of the ecological‐constraints model on ursine colobus monkeys (Colobus vellerosus) in Ghana

The ecological‐constraints model was supported in this study; scramble competition in this population is manifesting in increased ranging and time spent feeding, and how costly this increased energy expenditure is for individuals in larger groups remains to be determined.
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Female dispersal patterns in six groups of ursine colobus (Colobus vellerosus): infanticide avoidance is important

Females appear to emigrate to reduce infanticide threat although feeding competition is reduced in smaller groups as well, and colobines at BFMS are better described as ‘incomplete suppressors’.
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Crop Raiding Patterns of Solitary and Social Groups of Red-Tailed Monkeys on Cocoa Pods in Uganda

Crop damage by wildlife is a very prevalent form of human-wildlife conflict adjacent to protected areas, and great economic losses from crop raiding impede efforts to protect wildlife. Management…
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Dispersal in male ursine colobus monkeys (Colobus vellerosus): influence of age, rank and contact with other groups on dispersal decisions

It is suggested that non-alpha males used incursions to assess other groups for breeding or dispersal opportunities, whereas alpha males performed incursions mainly to convey information about their quality to neighbouring males and females.
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