Abstract

CADENA-ORTIZ, Héctor; SOLORZANO, María Fernanda; NOBOA, Mishell  and  BRITO, Jorge. Diet of the Short-Eared Owl (Asio flammeus) in the Antisana highlands, Ecuador. Huitzil [online]. 2019, vol.20, n.2, e535. ISSN 1870-7459.  https://doi.org/10.28947/hrmo.2019.20.2.436.

The knowledge of the diet of a species is an important element to understand its natural history and ecology, the information about Ecuadorian owls’ diet increases progressively. We analyzed n = 163 pellets of the short-eared Owl (Asio flammeus) collected in the Antisana highlands, north of Ecuador. We found 242 preys of six taxa; the paramo rabbit Sylvilagus andinus was the most important prey in terms of frequency (46%) and biomass contribution (78%). The diet of the owl in the Antisana highlands has low diversity, it could be related to individual specialization or the low availability of prey on the 4000 m; the mammals as preys dominated in frequency and biomass like previous studies.

Keywords : Cricetidae; mammals; pellets; prey; Sylvilagus andinus.

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