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On-line version ISSN 1676-0611
ALEXANDRINO, Eduardo Roberto; LUZ, Daniela Tomasio Apolinario da; MAGGIORINI, Erica Vanessa and FERRAZ, Katia Maria Paschoaletto Micchi de Barros. Nest stolen: the first observation of nest predation by an invasive exotic marmoset (Callithrix penicillata) in an agricultural mosaic. Biota Neotrop. [online]. 2012, vol.12, n.2, pp.211-215. ISSN 1676-0611. http://dx.doi.org/10.1590/S1676-06032012000200021.
Invasive exotic species can negatively impact local biodiversity. We present here a report of a nest predation of an endemic bird species, variable oriole (Icterus pyrrhopterus) by the introduced black-tufted marmoset (Callithrix penicillata) in an agricultural landscape highly disturbed by human activities. Two nestlings were predated, by adults of the introduced marmoset during two alternate days. Antipredator behavior and vocal mimicry were observed in variable oriole, while copulation was observed in black-tufted marmoset during the predation. The use of mobbing against predators by I. pyrrhopterus was observed and it is described here by the first time. The potential impact of the introduced marmosets to local biodiversity is discussed.
Keywords : invasive alien species; birds; mobbing behaviour; nest predation; nest defense.