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  • 1
    Electronic Resource
    Electronic Resource
    The Changing Role of Women in Models of Human Evolution (1986)
    Palo Alto, Calif. : Annual Reviews
    Annual Review of Anthropology 15 (1986), S. 25-66 
    Details
    ISSN: 0084-6570
    Source: Annual Reviews Electronic Back Volume Collection 1932-2001ff
    Topics: Ethnic Sciences , Biology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1146/annurev.an.15.100186.000325
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    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    Ecological and demographic influences on the pattern of association in St. Kitts vervets (1988)
    Springer
    Primates 29 (1988), S. 417-421 
    Details
    ISSN: 0032-8332
    Keywords: Association patterns ; Social organization ; Vervets ; Cercopithecus aethiops
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract A group of St. Kitts vervets (Cercopithecus aethiops) were observed to have an association pattern which involved the formation of spatially separated subgroups which were unstable in composition. Five types of subgroups are described which account for 94% of the associations observed. The size of the subgroups changed when the abundance and distribution of the available resources changed. Based on this observation and on an analysis of the diurnal patterning of subgroups, we suggest that the association pattern of the vervets is a response to the distribution of food resources and that it arose under specific demographic conditions.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02380965
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    Paper (German National Licenses)
    Fulltext
  • 3
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    Reproductive aging in primates [Anthropology] (2013)
    National Academy of Sciences
    Details
    Publication Date: 2013-08-14
    Description: Women rarely give birth after ∼45 y of age, and they experience the cessation of reproductive cycles, menopause, at ∼50 y of age after a fertility decline lasting almost two decades. Such reproductive senescence in mid-lifespan is an evolutionary puzzle of enduring interest because it should be inherently disadvantageous. Furthermore,...
    Print ISSN: 0027-8424
    Electronic ISSN: 1091-6490
    Topics: Biology , Medicine , Natural Sciences in General
    Published by National Academy of Sciences
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    PAPER CURRENT
  • 4
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    Spatial ecology of perceived predation risk and vigilance behavior in white-faced capuchins (2014)
    Oxford University Press
    Details
    Publication Date: 2014-05-09
    Description: Although predation has likely played a central role in the evolution of primate socioecology, we currently lack a thorough understanding of how fine-scale variation in perceived predation risk affects primates’ short-term space use patterns and predator avoidance strategies. We examined the spatial and ecological characteristics of predator encounters, as well as behavioral responses to perceived predation risk, in 5 groups of wild white-faced capuchins ( Cebus capucinus ) in Costa Rica over a 1.5-year period. Alarm-calling bouts directed at birds were more likely to originate in high forest strata, whereas alarm-calling bouts at snakes and terrestrial quadrupeds were more likely to originate near the ground. Relative risk maps based on the locations of predator encounters revealed that high-risk areas for birds and for all guilds combined consisted of more mature forest, whereas low-risk areas for these predators consisted of relatively younger forest. The animals were most vigilant near the ground, which may reflect greater perceived exposure to snakes and terrestrial predators in lower vertical levels. Incorporating the combined risk function into a predictive model of vigilance behavior improved prediction relative to null models of uniform risk or habitat-specific risk. Our results suggest that capuchin monkeys in this study system perceive reduced predation risk in the high and middle forest layers, and they adjust their vigilance behavior to small-scale spatial variation in perceived risk.
    Print ISSN: 1045-2249
    Electronic ISSN: 1465-7279
    Topics: Biology
    Published by Oxford University Press
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