Episodic targeting aggression and the histories of Lemur social groups

Vick, Laura G.; Pereira, Michael E.

doi:10.1007/bf00299705

Cited by 138 publications

(120 citation statements)

References 31 publications

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“…Huck et al 1983;Wasser & Starling 1988;Vick & Pereira 1989;Hackländer et al 2003;Young et al 2006). By contrast, aggression seems to play little role, if any, in limiting reproduction in subordinate female marmosets.…”

Section: What Are the Social Cues That Trigger Reproductive Suppressimentioning

confidence: 97%

Reproductive skew in female common marmosets: what can proximate mechanisms tell us about ultimate causes?

2008

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Common marmosets are cooperatively breeding monkeys that exhibit high reproductive skew: most subordinate females fail to reproduce, while others attempt to breed but produce very few surviving infants. An extensive dataset on the mechanisms limiting reproduction in laboratory-housed and freeliving subordinate females provides unique insights into the causes of reproductive skew. Non-breeding adult females undergo suppression of ovulation and inhibition of sexual behaviour; however, they receive little or no aggression or mating interference by dominants and do not exhibit behavioural or physiological signs of stress. Breeding subordinate females receive comparable amounts of aggression to non-breeding females but are able to conceive, gestate and lactate normally. In groups containing two breeding females, however, both dominant and subordinate breeders kill one another's infants. These findings suggest that preconception reproductive suppression is not imposed on subordinate females by dominants, at a proximate level, but is instead self-imposed by most subordinates, consistent with restraint models of reproductive skew. In contrast to restraint models, however, this self-suppression probably evolved not in response to the threat of eviction by dominant females but in response to the threat of infanticide. Thus, reproductive skew in this species appears to be generated predominantly by subordinate self-restraint, in a proximate sense, but ultimately by dominant control over subordinates' reproductive attempts.

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Section: What Are the Social Cues That Trigger Reproductive Suppressimentioning

confidence: 97%

Reproductive skew in female common marmosets: what can proximate mechanisms tell us about ultimate causes?

2008

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“…Eviction is common in among red howlers (Alouatta seniculus) in fragmented gallery forest in Venezuela (Crockett and Pope 1993). Targeting also occurs in captive groups of mangabeys and in various guenon species (e.g., Rowell 1987;Kaplan 1987;Gust and Gordon 1994), as well as in captive, free-ranging ringtailed lemurs, in which it regulates the number of females per group (Vick and Pereira 1989;Pereira 1993Pereira , 1995. The same, or closely related, species also tend to show strong between-group antagonism in the wild.…”

Section: Habitat Saturation As a Possible Selective Forcementioning

confidence: 99%

The evolution of female social relationships in nonhuman primates

Sterck

Watts

Schaik

1997

Behavioral Ecology and Sociobiology

1,093

941

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Considerable interspeci®c variation in female social relationships occurs in gregarious primates, particularly with regard to agonism and cooperation between females and to the quality of female relationships with males. This variation exists alongside variation in female philopatry and dispersal. Socioecological theories have tried to explain variation in female-female social relationships from an evolutionary perspective focused on ecological factors, notably predation and food distribution. According to the current``ecological model'', predation risk forces females of most diurnal primate species to live in groups; the strength of the contest component of competition for resources within and between groups then largely determines social relationships between females. Social relationships among gregarious females are here characterized as Dispersal-Egalitarian, Resident-Nepotistic, Resident-Nepotistic-Tolerant, or Resident-Egalitarian. This ecological model has successfully explained di erences in the occurrence of formal submission signals, decided dominance relationships, coalitions and female philopatry. Group size and female rank generally a ect female reproduction success as the model predicts, and studies of closely related species in di erent ecological circumstances underscore the importance of the model. Some cases, however, can only be explained when we extend the model to incorporate the e ects of infanticide risk and habitat saturation. We review evidence in support of the ecological model and test the power of alternative models that invoke between-group competition, forced female philopatry, demographic female recruitment, male interventions into female aggression, and male harassment. Not one of these models can replace the ecological model, which already encompasses the between-group competition. Currently the best model, which explains several phenomena that the ecological model does not, is a``socioecological model'' based on the combined importance of ecological factors, habitat saturation and infanticide avoidance. We note some points of similarity and divergence with other mammalian taxa; these remain to be explored in detail.

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“…Male Assamese macaques attain high rank through male-male coalitionary support and high rank does not necessarily confer exclusive access to reproductive females [64,71]. Female ring-tailed lemurs are dominant to males, they have significant weaponry, and they are relatively aggressive within and between social groups [72,73]. These two exceptions may prove the rule that high rates of within-sex aggression for high-rank attainment predict short-term costs and GC elevations in dominant individuals, whereas in social systems with low rates of within-sex aggression, subordinate exclusion from key resources predicts longer term costs and GC elevations in subordinates.…”

Section: Sex Differences In Social Status and Glucocorticoid Productionmentioning

confidence: 99%

Sex, social status and physiological stress in primates: the importance of social and glucocorticoid dynamics

Cavigelli

Caruso

2015

Phil. Trans. R. Soc. B

100

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Social status has been associated with health consequences, although the mechanisms by which status affects health are relatively unknown. At the physiological level, many studies have investigated the potential relationship between social behaviour/rank and physiological stress, with a particular focus on glucocorticoid (GC) production. GCs are of interest because of their experimentally established influence on health-related processes such as metabolism and immune function. Studies in a variety of species, in both naturalistic and laboratory settings, have led to complex outcomes. This paper reviews findings from primates and rodents and proposes a psychologically and physiologically relevant framework in which to study the relationship between social status and GC function. We (i) compare status-specific GC production between male and female primates, (ii) review the functional significance of different temporal patterns of GC production, (iii) propose ways to assess these temporal dynamics, and (iv) present novel hypotheses about the relationship between social status and GC temporal dynamics, and potential fitness and health implications. To understand whether GC production mediates social status-related fitness disparities, we must consider social contest conditions and the temporal dynamics of GC production. This framework will provide greater insights into the relationship between social status, physiological stress and health.

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Episodic targeting aggression and the histories of Lemur social groups

Cited by 138 publications

References 31 publications

Reproductive skew in female common marmosets: what can proximate mechanisms tell us about ultimate causes?

Reproductive skew in female common marmosets: what can proximate mechanisms tell us about ultimate causes?

The evolution of female social relationships in nonhuman primates

Sex, social status and physiological stress in primates: the importance of social and glucocorticoid dynamics

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