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Trade-offs between extraterritorial prospecting and helping in a cooperative mammal

Young, Andrew J ; Carlson, Anne A ; Clutton-Brock, Tim

Animal Behaviour, 2005, Vol.70(4), pp.829-837 [Periódico revisado por pares]

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  • Título:
    Trade-offs between extraterritorial prospecting and helping in a cooperative mammal
  • Autor: Young, Andrew J ; Carlson, Anne A ; Clutton-Brock, Tim
  • Assuntos: Veterinary Medicine ; Zoology ; Psychology
  • É parte de: Animal Behaviour, 2005, Vol.70(4), pp.829-837
  • Descrição: Males commonly face a trade-off between investment in offspring care and time spent seeking additional breeding opportunities. Although this trade-off is central to our understanding of the evolution of male parental care, it has been largely ignored by studies of male alloparental care in cooperative societies, where male helpers could face a similar problem. We investigated whether male helpers in cooperative societies of meerkats Suricata suricatta trade off their cooperative contributions to pup feeding against extraterritorial prospecting for mating and dispersal opportunities. Not only did male helpers spend extended periods away from the group during pup care periods, but those that spent most time prospecting also contributed least to pup feeding when present in the group. Regular prospectors lost the most weight over the pup-feeding period and male testosterone levels increased in association with prospecting. As both reduced body condition and elevated testosterone...
  • Idioma: Inglês

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