Abstract

RIOS-CHELEN, ALEJANDRO A et al. Intra-specific brood parasitism revealed by DNA micro-satellite analyses in a sub-oscine bird, the vermilion flycatcher. Rev. chil. hist. nat. [online]. 2008, vol.81, n.1, pp.21-31. ISSN 0716-078X.  http://dx.doi.org/10.4067/S0716-078X2008000100002.

Extra-pair reproduction is known to occur in many avian species. However, among passerines, the majority of studies on extra-pair reproduction have been carried out in oscine birds from temperate regions. Conversely, sub-oscines species, and particularly, species that inhabit tropical regions, have been studied to a much lesser extent. Given that a majority of avian species live in the tropics, it is important to study more tropical and sub-oscine species to have a more accurate picture of the rates of extra-pair reproduction among passerines, and a better understanding of the adaptive function of extra-pair reproduction in birds. Tropical species differ from temperate species in several ecological and life history traits, that may influence the occurrence of different modes of extra-pair reproduction and their prevalence. In this study we asked whether extra-pair reproduction occur in a sexually dimorphic and socially monogamous sub-oscine, the vermilion flycatcher (Pyrocephalus rubinus). We report cases of extra-pair paternity, extra-pair maternity and intra-specific brood parasitism, and discuss our results in the view of other studies with passerines

Keywords : extra-pair reproduction; vermilion flycatcher; Pyrocephalus rubinus; sub-oscine; intra-specific brood parasitism.

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