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Silk, Joan B.

doi:10.1023/a:1015581016205

Cited by 232 publications

(46 citation statements)

References 117 publications

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“…In phenotype matching, individuals compare the phenotypic cues (such as odor) of others with the phenotypes of themselves or their known relatives to determine their kin relations. Studies conducted in captivity and in the wild have produced contradictory, but mainly negative, results regarding the ability of primates to use phenotype matching to identify paternal relatives (10,(21)(22)(23)(24)(28)(29)(30)(31). One study of rhesus monkeys has implicated phenotype matching by showing among members of the same age cohort, paternal sisters interacted slightly, but statistically significantly, more than did unrelated individuals in two of five social behaviors (22).…”

Section: Resultsmentioning

confidence: 99%

“…For example, in many Old World cercopithecine monkey species, females remain in their natal groups their entire lives and behave nepotistically toward their sisters and other maternal relatives, whereas males disperse among groups and cooperate less with each other (10). In contrast, male chimpanzees are philopatric and are much more affiliative and cooperative than female chimpanzees (11).…”

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confidence: 99%

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The limited impact of kinship on cooperation in wild chimpanzees

Langergraber

Mitani

Vigilant

2007

Proc. Natl. Acad. Sci. U.S.A.

356

306

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The complex cooperative behavior exhibited by wild chimpanzees generates considerable theoretical and empirical interest, yet we know very little about the mechanisms responsible for its evolution. Here, we investigate the influence of kinship on the cooperative behavior of male chimpanzees living in an unusually large community at Ngogo in Kibale National Park, Uganda. Using long-term field observations and molecular genetic techniques to identify kin relations between individuals, we show that male chimpanzees clearly prefer to affiliate and cooperate with their maternal brothers in several behavioral contexts. Despite these results, additional analyses reveal that the impact of kinship is limited; paternal brothers do not selectively affiliate and cooperate, probably because they cannot be reliably recognized, and the majority of highly affiliative and cooperative dyads are actually unrelated or distantly related. These findings add to a growing body of research that indicates that animals cooperate with each other to obtain both direct and indirect fitness benefits and that complex cooperation can occur between kin and nonkin alike.Pan troglodytes ͉ genotyping ͉ kin recognition ͉ microsatellites ͉ relatedness

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Section: Resultsmentioning

confidence: 99%

mentioning

confidence: 99%

The limited impact of kinship on cooperation in wild chimpanzees

Langergraber

Mitani

Vigilant

2007

Proc. Natl. Acad. Sci. U.S.A.

356

306

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“…This is an essential consideration because in many matrilineal societies, such as Papio spp. and Macaca spp., female primates interact more often with close kin and selectively support them in agonistic contexts (Silk 2002b(Silk , 2006.…”

Section: Discussionmentioning

confidence: 99%

Rates of Agonism by Diurnal Lemuroids: Implications for Female Social Relationships

Erhart

Overdorff

2008

Int J Primatol

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Sterck and colleagues (Behaviour 134:749-774, 1997) focused attention on the evolutionary ecology of female social relationships within and between groups and proposed a model that distinguishes 4 categories of female relationships, which correspond to particular types of intra-and intergroup competition. They emphasized literature on haplorhines in their model because of numerous, detailed studies conducted on a range of species in the wild; in contrast, strepsirrhines such as the lemuroids are poorly represented. We evaluate more closely their classification of lemuroids as Dispersal-Egalitarian using a greater number of species of Lemur, Eulemur, Varecia, Hapalemur, Indri, and Propithecus. For the focal species we found that female philopatry occurs rarely, agonistic rates are relatively low, female dominance hierarchies are not stable and do not exist year-round, and intra-and intergroup female-female competition is infrequent. Therefore, our results support the suggestion that a majority of lemuroid taxa we surveyed correspond to the Dispersal-Egalitarian category with 2 probable exceptions: Lemur catta and Propithecus edwardsi. Because female Lemur catta are philopatric, have year-round dominance hierarchies with female matrilines, exhibit the highest rates of agonism in studied lemuroids, and have frequent intra-and intergroup female-female competition, it would seem that they more closely correspond to the category Resident-Nepotistic. However, maternal Lemur catta rarely support their offspring in agonistic contests and matrilineal rank is not inherited, which leads us to state that the species does not fit into any existing category that explains the nature of female social relationships. The relationships of female Propithecus edwardsi are also a challenge to categorize under the current model because some of their characteristicstypical female dispersal and low agonistic rates-fall into the Dispersal-Egalitarian category, yet other behaviors -intense targeted aggression and stable and year-round female dominance hierarchies-do not.

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“…While there is also ample evidence of kin discrimination or kin bias in numerous primate species, particularly among maternal kin (Kapsalis, 2004;Silk, 2002Silk, , 2009 Whereas primate studies commonly cite early social familiarity as the probable mechanism for kin discrimination in primates (Rendall, 2004;Berman, 2004), few studies quantify the usefulness of such a mechanism for accurately identifying different types of kin, as compared with other possible cues to relatedness such as age proximity for paternal sibship and adult male rank for paternity. Such quantification is critical, however, because the effectiveness of mechanisms determine the degree to which kin discrimination can occur in different species.…”

Section: Introductionmentioning

confidence: 99%

Cues to kinship and close relatedness during infancy in white-faced capuchin monkeys, Cebus capucinus

2016

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The ability to recognize kin has important impacts on fitness because it can allow for kinbiased affiliative behaviors and for avoidance of mating with close kin. While the presence and effects of kin biases have been widely studied, less is known about the process by which animals recognize close kin. Here we investigate potential cues that white-faced capuchin monkeys (Cebus capucinus) may use to detect half-siblings and closer kin. We focus on the first year of life in a sample of 130 infant (n=65 infant females) wild capuchins from the Lomas Barbudal population in Costa Rica. We show that (1) infant relatedness to juvenile and adult males at the level of half-sibling and higher can be predicted by male alpha status, spatial proximity, and age proximity, and that (2) infant relatedness to juvenile and adult females at the level of half-sibling or higher can be predicted by spatial proximity (but not age proximity). Furthermore, (1) the identities of infants' fathers can also be predicted by male alpha status and the spatial proximity between infants and adult males, and (2) age proximity (but not spatial proximity) is predictive of paternal sibship. These results suggest that infant capuchins have access to multiple cues to close relatedness and paternal kinship, though whether infants use these cues later in life remains to be explored in future research.Keywords: kin recognition, age proximity, early social familiarity, male dominance, The ability to recognize kin has many adaptive benefits. It can help organisms increase their inclusive fitness by allowing them to allot a disproportionate amount of affiliative behaviors and coalitionary support toward individuals with which they share a larger proportion of their genes (Hamilton, 1964). Furthermore, by allowing individuals to recognize kin and discriminate against them in a mating context, kin recognition mechanisms can facilitate avoidance of the deleterious effects of close inbreeding (Charlesworth & Charlesworth, 1987).We define kin recognition as the ability to identify and distinguish kin from non-kin, or more closely related kin from more distant kin, regardless of the mechanism or mechanisms through which it is accomplished, and regardless of whether it actually leads to differential treatment of individuals (i.e. kin discrimination). In this sense, we take on a broad as opposed to narrow definition of kin recognition (see Penn & Frommen, 2010). We consider the related term kin bias to be the differential treatment of kin versus non-kin (or close kin from distant kin), though not exclusively as the result of kin recognition.Kin recognition has been documented in a wide array of animal taxa, including, to name only a few: Artic charr (Salvelinus alpinus) (Winberg & Olsén, 1992;Olsén & Winberg, 1996), spadefoot toads (Scaphiopus bombifrons) (Pfennig et al., 1993), Golden hamsters (Mesocricetus auratus) (Mateo & Johnston, 2000), and Belding's ground squirrels (Spermophilus beldingi) and Arctic ground squirrels (Spermophilus parryii) (Holmes & S...

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Untitled

Cited by 232 publications

References 117 publications

The limited impact of kinship on cooperation in wild chimpanzees

The limited impact of kinship on cooperation in wild chimpanzees

Rates of Agonism by Diurnal Lemuroids: Implications for Female Social Relationships

Cues to kinship and close relatedness during infancy in white-faced capuchin monkeys, Cebus capucinus

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