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Publications [#28305] of Leslie J. Digby

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Papers Presented/Symposia/Abstracts

  1. Digby, L.J. & Saltzman, S.F., Is infanticide by females unique to the common marmoset (Callithrix jacchus)? Implications for how callitrichines balance cooperation and competition, American Journal of Physical Anthropology, vol. Supplement (2005)
    (last updated on 2006/01/02)

    Abstract:
    The callitrichines are known for their unusual reproductive system where breeding is typically limited by physiological suppression or behavioral inhibition to a single breeding female per group. In those groups where a second female does breed, the subordinate breeding female may still have difficulty successfully raising young. At least six infanticides by females other than the mother have been observed in wild groups of common marmosets with several more cases being described for captive groups. But infanticide has not been documented for other wild groups of callitrichines. Here we examine the contexts that give rise to infanticide by females and how they differ across callitrichines genera. Contexts include the prevalence of polygynous groups (which in turn may be related to the presence of an unrelated male), reproductive state of other females in the group (including overlapping pregnancies and presence of lactating females) and overall cost of infant care.


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