ArletIsbellMollemanEtAl2014

Référence

Arlet, M.E., Isbell, L.A., Molleman, F., Kaasik, A., Chancellor, R.L., Chapman, C.A., Mand, R., Carey, J.R. (2014) Maternal Investment and Infant Survival in Gray-Cheeked Mangabeys (Lophocebus albigena). International Journal of Primatology, 35(2):476-490. (Scopus )

Résumé

Differences among females in infant survival can contribute substantially to variance in fitness. Infant survival is a product of external risk factors and investment by kin, especially the mother, and is thus closely tied with the evolution of behavior and life history. Here we present a 9-yr study (2004-2012) of infant survival and sex ratio relative to age and dominance ranks of mothers and the presence of immigrant males in a free-ranging population of gray-cheeked mangabeys (Lophocebus albigena) in Kibale National Park, Uganda. We consider immigrant males because they are known to increase infant mortality in several other species. We found that infants of older mothers had higher survival than those of younger mothers but that high rank did not confer a significant benefit on infant survival. Female infants had higher survival than male infants. Young, low-ranking females had more male infants than young, high-ranking females, which had slightly more daughters, but this difference declined as females aged because low-ranking females had more daughters as they aged. With limited data, we found a significant relationship between the presence of male immigrants and infant mortality (falls and unexplained disappearances) to 18 mo. Our results suggest that infant survival in gray-cheeked mangabeys is most precarious when mothers must allocate energy to their own growth as well as to their infants, that sons of young mothers are at greatest risk, and that immigrant males can negatively affect infant survival. © 2014 Springer Science+Business Media New York.

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@ARTICLE { ArletIsbellMollemanEtAl2014,
    AUTHOR = { Arlet, M.E. and Isbell, L.A. and Molleman, F. and Kaasik, A. and Chancellor, R.L. and Chapman, C.A. and Mand, R. and Carey, J.R. },
    TITLE = { Maternal Investment and Infant Survival in Gray-Cheeked Mangabeys (Lophocebus albigena) },
    JOURNAL = { International Journal of Primatology },
    YEAR = { 2014 },
    VOLUME = { 35 },
    PAGES = { 476-490 },
    NUMBER = { 2 },
    ABSTRACT = { Differences among females in infant survival can contribute substantially to variance in fitness. Infant survival is a product of external risk factors and investment by kin, especially the mother, and is thus closely tied with the evolution of behavior and life history. Here we present a 9-yr study (2004-2012) of infant survival and sex ratio relative to age and dominance ranks of mothers and the presence of immigrant males in a free-ranging population of gray-cheeked mangabeys (Lophocebus albigena) in Kibale National Park, Uganda. We consider immigrant males because they are known to increase infant mortality in several other species. We found that infants of older mothers had higher survival than those of younger mothers but that high rank did not confer a significant benefit on infant survival. Female infants had higher survival than male infants. Young, low-ranking females had more male infants than young, high-ranking females, which had slightly more daughters, but this difference declined as females aged because low-ranking females had more daughters as they aged. With limited data, we found a significant relationship between the presence of male immigrants and infant mortality (falls and unexplained disappearances) to 18 mo. Our results suggest that infant survival in gray-cheeked mangabeys is most precarious when mothers must allocate energy to their own growth as well as to their infants, that sons of young mothers are at greatest risk, and that immigrant males can negatively affect infant survival. © 2014 Springer Science+Business Media New York. },
    COMMENT = { Export Date: 2 May 2014 Source: Scopus },
    OWNER = { Luc },
    TIMESTAMP = { 2014.05.02 },
    URL = { http://www.scopus.com/inward/record.url?eid=2-s2.0-84897575644&partnerID=40&md5=bcc33b2b45a93061e51f6c492f72e846 },
}

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