Diet of the Red-backed Hawk (Buteo polyosoma) in two environmentally contrasting areas of Patagonia

dc.creatorTravaini, Alejandro
dc.creatorSantillán, Miguel Ángel
dc.creatorZapata, Sonia Cristina
dc.date2012-02
dc.date.accessioned2023-08-31T00:25:20Z
dc.date.available2023-08-31T00:25:20Z
dc.identifierhttp://hdl.handle.net/11336/194840
dc.identifierTravaini, Alejandro; Santillán, Miguel Ángel; Zapata, Sonia Cristina; Diet of the Red-backed Hawk (Buteo polyosoma) in two environmentally contrasting areas of Patagonia; Taylor & Francis Ltd; Studies on Neotropical Fauna and Environment; 47; 1; 2-2012; 25-32
dc.identifier0165-0521
dc.identifierCONICET Digital
dc.identifierCONICET
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/8543413
dc.descriptionWe studied the Red-backed Hawk (Buteo polyosoma) diet by pellet analysis in two areas, the Monumento Natural Bosques Petrificados (MNBP) and Junín de los Andes, located in southern and northwestern Argentinean Patagonia respectively. These areas have different values of primary production mainly due to the differences in mean annual precipitation, being higher in Junín de los Andes. Diets were dominated by mammals in both areas (68.3% and 61% of occurrences). Rodents represented the greatest proportion (66.5%) of prey numbers in MNBP. They represented 92.6% of the biomass. Arthropods were also consumed with a relatively high occurrence (21.4%). In Junín de los Andes, rodents were an important prey (57.1%) but represented only 29.6% of the consumed biomass. In contrast, the introduced European hare (Lepus europaeus) was not frequently consumed (13.5%) but comprised 59.3% of prey biomass. Reptiles were a frequent item, consumed at 25.2% of total prey. The diet of the Red-backed Hawk was significantly different between MNBP and Junín de los Andes. The wider food niche breadth of the Red-backed Hawk in Junín de los Andes was likely attributable to the more even distribution of prey categories. Additionally, a functional response toward European hare consumption was observed, with a higher consumption of this prey at Junín de los Andes.
dc.descriptionFil: Travaini, Alejandro. Universidad Nacional de la Patagonia Austral; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
dc.descriptionFil: Santillán, Miguel Ángel. Universidad Nacional de la Patagonia Austral; Argentina
dc.descriptionFil: Zapata, Sonia Cristina. Universidad Nacional de la Patagonia Austral; Argentina
dc.formatapplication/pdf
dc.formatapplication/pdf
dc.languageeng
dc.publisherTaylor & Francis Ltd
dc.relationinfo:eu-repo/semantics/altIdentifier/url/https://www.tandfonline.com/doi/abs/10.1080/01650521.2011.649948
dc.relationinfo:eu-repo/semantics/altIdentifier/doi/10.1080/01650521.2011.649948
dc.rightsinfo:eu-repo/semantics/openAccess
dc.rightshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subjectARGENTINEAN PATAGONIA
dc.subjectBUTEO POLYOSOMA
dc.subjectDIET
dc.subjectEUROPEAN HARE
dc.subjectFUNCTIONAL RESPONSE
dc.subjecthttps://purl.org/becyt/ford/1.6
dc.subjecthttps://purl.org/becyt/ford/1
dc.titleDiet of the Red-backed Hawk (Buteo polyosoma) in two environmentally contrasting areas of Patagonia
dc.typeinfo:eu-repo/semantics/article
dc.typeinfo:ar-repo/semantics/artículo
dc.typeinfo:eu-repo/semantics/publishedVersion


Este ítem pertenece a la siguiente institución