Primates of the Kilimi Area, Northwest Sierra Leone

Harding, Robert S. Ο.

doi:10.1159/000156153

Cited by 14 publications

(16 citation statements)

References 7 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…De Brazza's monkey live in small family groups (including generally one but sometimes up to three adult females), average group size ranging from three to seven individuals in the literature (Quris, 1976; Gautier-Hion and Gautier, 1978; Brennan, 1985; Decker, 1995; Mugambi et al, 1997; Mwenja, 2006; King, 2008). Campbell's monkeys live in harem groups (including three to eight adult females) whose average size ranges from seven to 13 individuals (Harding, 1984; Galat and Galat-Luong, 1985; Buzzard, 2006; Ouattara et al, 2009b). Red-capped mangabeys live in relatively large multi-male multi-female groups that often split into smaller foraging groups whose average group size ranges from 19 to 21 (Mitani, 1989; Matthews and Matthews, 2002).…”

Section: Methodsmentioning

confidence: 99%

Social complexity parallels vocal complexity: a comparison of three non-human primate species

Bouchet¹,

Blois‐Heulin²,

Lemasson³

2013

Front. Psychol.

102

107

View full text Add to dashboard Cite

Social factors play a key role in the structuring of vocal repertoires at the individual level, notably in non-human primates. Some authors suggested that, at the species level too, social life may have driven the evolution of communicative complexity, but this has rarely been empirically tested. Here, we use a comparative approach to address this issue. We investigated vocal variability, at both the call type and the repertoire levels, in three forest-dwelling species of Cercopithecinae presenting striking differences in their social systems, in terms of social organization as well as social structure. We collected female call recordings from twelve De Brazza's monkeys (Cercopithecus neglectus), six Campbell's monkeys (Cercopithecus campbelli) and seven red-capped mangabeys (Cercocebus torquatus) housed in similar conditions. First, we noted that the level of acoustic variability and individual distinctiveness found in several call types was related to their importance in social functioning. Contact calls, essential to intra-group cohesion, were the most individually distinctive regardless of the species, while threat calls were more structurally variable in mangabeys, the most “despotic” of our three species. Second, we found a parallel between the degree of complexity of the species' social structure and the size, diversity, and usage of its vocal repertoire. Mangabeys (most complex social structure) called twice as often as guenons and displayed the largest and most complex repertoire. De Brazza's monkeys (simplest social structure) displayed the smallest and simplest repertoire. Campbell's monkeys displayed an intermediate pattern. Providing evidence of higher levels of vocal variability in species presenting a more complex social system, our results are in line with the theory of a social-vocal coevolution of communicative abilities, opening new perspectives for comparative research on the evolution of communication systems in different animal taxa.

show abstract

Section: Methodsmentioning

confidence: 99%

Social complexity parallels vocal complexity: a comparison of three non-human primate species

Bouchet¹,

Blois‐Heulin²,

Lemasson³

2013

Front. Psychol.

102

107

View full text Add to dashboard Cite

show abstract

“…They live in multimale-multi-female groups with males considerably larger than females. Group size ranges from approximately 15 (Sierra Leone : Harding 1984) up to 90 animals (Ivory Coast: Bergemu¨ller 1998. Their large (approximately 8 km 2 ) home ranges overlap considerably (Bergemu¨ller 1998).…”

Section: Introductionmentioning

confidence: 99%

Food competition in captive female sooty mangabeys ( Cercocebus torquatus atys )

Ståhl

Kaumanns

2003

Primates

View full text Add to dashboard Cite

We studied the social and foraging behavior of two captive groups of sooty mangabeys under two different spatial food situations. These food conditions were clumped (food was placed in a box) and dispersed (food was dispersed over the entire enclosure). In each group five adult females and two adult males were observed. As a criterion for food competition, individual differences in the relative food intake were used. Adult female mangabeys had a linear, stable, and unidirectional dominance hierarchy. Access to food was rank dependent among females only under clumped food distribution, as current models of the evolution of primate social systems predict. However, feeding success appeared to be mediated not by female but by male agonistic behavior toward females. High-ranking females received relatively less aggression from males and could, therefore, stay and feed longer in the feeding area. Male tolerance of higher-ranking females seems to mediate female feeding success under restricted food resources. The establishment of a special relationship with a high-ranking male might, therefore, be a strategy to get better access to food. This study demonstrates that female competition for access to food should not be analyzed separately from male influences on females and suggests that a more integral role of males in socioecological models of the evolution of primate social systems should be considered.

show abstract

“…Lophocebus mangabeys, especially in eastern Africa, are highly frugivorous but also target tough seeds (Chalmers 1968;Poulsen et al 2001;Brugiere et al 2002) and ''fall back'' on bark and seeds when fruit is less available (Swedell 2010), rather than leaves that sympatric guenons favour (Lambert et al 2004;Lambert 2007). Cercocebus mangabeys, meanwhile, concentrate on fruit, seeds and nuts and to a much lesser extent, leaves, stems, shoots, flowers, fungi, roots, tubers, and animal prey (Homewood 1976(Homewood , 1978Harding 1984;Mitani 1989).…”

Section: Discussionmentioning

confidence: 99%

Diet and feeding patterns in the kipunji (Rungwecebus kipunji) in Tanzania’s Southern Highlands: a first analysis

Davenport¹,

Luca²,

Bracebridge³

et al. 2010

Primates

View full text Add to dashboard Cite

The diet and feeding behaviour of the kipunji (Rungwecebus kipunji) was studied over 45 months, the first dietary analysis for this species. During 9498 h of direct observation of 34 kipunji groups, a list of 122 identified foodplants was recorded. The list represents 60 families, including 64 trees, 30 herbs, 9 climbers, 7 shrubs, 6 lianas, 3 grasses and 3 ferns. Kipunji were observed eating bark, young and mature leaves, ripe and unripe fruits, flowers, pith, seed pods, rhizomes, tubers, shoots and stalks. Invertebrates, fungi, moss, lichen, and soil were also eaten. Macaranga capensis var. capensis, an early successional tree, was the most commonly consumed species, with leaves, leaf stalks, pith, flowers and bark all eaten. We demonstrate that the kipunji is an omnivorous dietary generalist, favouring mature and immature leaves, ripe and unripe fruits and bark in similar proportions, with an almost comparable fondness for leaf stalks and flowers. Kipunji appear to be adaptable foragers able to modify their diet seasonally, being more folivorous in the dry season and more frugivorous in the wet. Whereas more ripe fruit is eaten in the wet season, the proportion of unripe fruit remains similar across the year. The proportion of mature leaves and pith increases throughout the dry season at the expense of ripe fruits and bark, and this may compensate nutritionally for the lack of available dry-season ripe fruits. Relatively more pith is eaten in the dry season, more stalks at the end of the dry and beginning of the wet seasons, and bark consumption increases as the rainfall rises.

show abstract

Primates of the Kilimi Area, Northwest Sierra Leone

Cited by 14 publications

References 7 publications

Social complexity parallels vocal complexity: a comparison of three non-human primate species

Social complexity parallels vocal complexity: a comparison of three non-human primate species

Food competition in captive female sooty mangabeys ( Cercocebus torquatus atys )

Diet and feeding patterns in the kipunji (Rungwecebus kipunji) in Tanzania’s Southern Highlands: a first analysis

Contact Info

Product

Resources

About