Joint intergroup aggression in female colobus monkeys ( Colobus vellerosus ) is associated with grooming bonds, male participation, and group size

2021 ◽  
Author(s):  
Eva C. Wikberg ◽  
Sofia Gonzalez ◽  
Cynthia Rodriguez ◽  
Pascale Sicotte
Keyword(s):  
Group Size ◽  
Intergroup Aggression ◽  
Colobus Vellerosus ◽  
Male Participation ◽  
Colobus Monkeys

scholarly journals Interactions between social groups of colobus monkeys (Colobus vellerosus) explain similarities in their gut microbiomes

2020 ◽  
Vol 163 ◽  
pp. 17-31 ◽  
Author(s):  
Eva C. Wikberg ◽  
Diana Christie ◽  
Pascale Sicotte ◽  
Nelson Ting
Keyword(s):  
Social Groups ◽  
Colobus Vellerosus ◽  
Colobus Monkeys

scholarly journals Factors influencing male affiliation and coalitions in a species with male dispersal and intense male–male competition, Colobus vellerosus

Behaviour ◽  
2014 ◽  
Vol 151 (7) ◽  
pp. 1045-1066 ◽  
Author(s):  
Julie A. Teichroeb ◽  
Eva C. Wikberg ◽  
Nelson Ting ◽  
Pascale Sicotte
Keyword(s):  
Reproductive Success ◽  
Group Size ◽  
Species Interactions ◽  
Male Competition ◽  
Adult Males ◽  
Cooperative Relationships ◽  
Colobus Vellerosus ◽  
Male Dispersal ◽  
Factors Influencing ◽  
High Level

Male Colobus vellerosus compete intensely for access to females, which sometimes leads to mortal wounding. Yet, males often form cooperative relationships to overtake prime-aged males and immigrate into bisexual groups. We investigated the factors that predicted the presence of coalitions and affiliative relationships among males in this species. Interactions among males in 292 dyads from six groups were examined from 2004 to 2010 at Boabeng-Fiema, Ghana. Affiliation rates among males were higher and aggression rates lower when one or both males in the dyad were subadult, compared to adult male dyads. Affiliation rates tended to be higher among males that were kin but no other aspect of male relationships predicted affiliation. Coalitions among males were rarely observed and primarily occurred in the context of joint defense against extra-group males (93.5% of events). Adult males were more likely to provide coalitionary support than subadults and coalitions occurred significantly more often when both males were high ranking, since these males probably benefited most in terms of reproductive success from excluding extra-group males. Rank-changing and leveling coalitions among low-ranking males appear to be quite rare or absent in C. vellerosus. The costs of these types of coalitions may be too high or male group size too small on average for these types of coalitions to have been selected for. The overall low rates of affiliation and coalitions among male C. vellerosus are likely influenced by male-biased dispersal and the high level of male–male competition.

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

Primates ◽  
2012 ◽  
Vol 53 (3) ◽  
pp. 287-296 ◽  
Author(s):  
Julie A. Teichroeb ◽  
Teresa D. Holmes ◽  
Pascale Sicotte
Keyword(s):  
Colobus Vellerosus ◽  
Colobus Monkeys

scholarly journals Dispersal in male ursine colobus monkeys (Colobus vellerosus): influence of age, rank and contact with other groups on dispersal decisions

Behaviour ◽  
2011 ◽  
Vol 148 (7) ◽  
pp. 765-793 ◽  
Author(s):  
Julie A. Teichroeb ◽  
Pascale Sicotte ◽  
Eva C. Wikberg
Keyword(s):  
Colobus Vellerosus ◽  
Colobus Monkeys
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