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The ties that bind: genetic relatedness predicts the fission and fusion of social groups in wild African elephants
Many social animals live in stable groups. In contrast, African savannah elephants (Loxodonta africana) live in unusually fluid, fission–fusion societies. That is, ‘core’ social groups are composedExpand
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Social Bonds of Female Baboons Enhance Infant Survival
Among nonhuman primates, females often form strong bonds with kin and other group members. These relationships are thought to have adaptive value for females, but direct effects of sociality onExpand
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Queuing and queue-jumping: long-term patterns of reproductive skew in male savannah baboons, Papio cynocephalus
In many animals, variance in male mating success is strongly correlated with male dominance rank or some other measure of fighting ability. Studies in primates, however, have varied greatly inExpand
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Dominance rank relationships among wild female African elephants, Loxodonta africana
Socioecological models of the evolution of female-bonded societies predict a relation between resource distribution and the nature of female affiliative and dominance relationships. Species thatExpand
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Social relationships among adult female baboons (Papio cynocephalus) II. Variation in the quality and stability of social bonds
A growing body of evidence suggests that social bonds have adaptive value for animals that live in social groups. Although these findings suggest that natural selection may favor the ability toExpand
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Social relationships among adult female baboons (papio cynocephalus) I. Variation in the strength of social bonds
Sociality has positive effects on female fitness in many mammalian species. Among female baboons, those who are most socially integrated reproduce most successfully. Here we test a number ofExpand
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Behavior predicts genes structure in a wild primate group.
The predictability of genetic structure from social structure and differential mating success was tested in wild baboons. Baboon populations are subdivided into cohesive social groups that includeExpand
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Mate guarding constrains foraging activity of male baboons
For many species, mate guarding results in dramatic departures from normal behaviour that reflect compromised attention to feeding and other activities. Such departures have previously been diYcultExpand
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True paternal care in a multi-male primate society
Although male parental care is rare among mammals, adult males of many cercopithecine primate species provide care for infants and juveniles. This care is often in the form of grooming, carrying,Expand
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Life at the Top: Rank and Stress in Wild Male Baboons
Alpha males have higher stress levels than beta males in a wild baboon society. In social hierarchies, dominant individuals experience reproductive and health benefits, but the costs of socialExpand
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