Seasonal diet by a generalist raptor: the case of the variable hawk (Geranoaetus polyosoma) at Atacama Desert, norhern Chile

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dc.contributor.authorPonce, Cristóbal
dc.contributor.authorCarevic, Felipe S.
dc.contributor.authorCarmona Ortíz, Erico
dc.date2018
dc.date.accessioned2020-07-02T19:23:18Z
dc.date.available2020-07-02T19:23:18Z
dc.description.abstractWe determined the seasonal diet of the variable hawk, Geranoaetus polyosoma, in a hyperarid and threatened habitat in the Atacama Desert, northern Chile, by analysing the contents of the bird's pellets. We estimated the biomass and number of individuals of each prey species consumed. We compared our results with those of other studies on G. polyosoma in South America. In general, the diet was characterised by extremely low number of prey, low diversity of species consumed and high dietary breadth. In contrast with other biomes of Chile, in our study reptiles formed the dominant food item and accounted for the highest percentage of biomass consumed from autumn to spring, with rodents being a seasonally significant major food item. Arthropods were also consumed, but the biomass ingested was negligible. Statistically significant differences were noted across seasons in the prey items consumed, reflecting a flexible and opportunistic response to the scarcity of prey available. Our findings add to the data present on the basic natural history of G. polyosoma and can aid in its conservation in the Atacama Deserten_US
dc.formatPDFen_US
dc.identifier.citationNew Zealand Journal of Zoology, Vol.45, N°2, 171-179en_US
dc.identifier.doi10.1080/03014223.2017.1395750en_US
dc.identifier.urihttp://repositoriodigital.uct.cl/handle/10925/2255
dc.language.isoenen_US
dc.rightsObra bajo licencia Creative Commons 3.0en_US
dc.sourceNew Zealand Journal of Zoologyen_US
dc.subjectZoologíaen_US
dc.subjectGlaucidiumen_US
dc.subjectHalcónen_US
dc.subjectZoología_Desierto de Atacama, Chileen_US
dc.titleSeasonal diet by a generalist raptor: the case of the variable hawk (Geranoaetus polyosoma) at Atacama Desert, norhern Chileen_US
dc.typeArtículo de Revistaen_US
uct.catalogadormlmen_US
uct.comunidadRecursos Naturalesen_US
uct.disciplinaZoología y Ciencias de los Animalesen_US
uct.indizacionSCOPUSen_US
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