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dc.contributor.author
Travaini, Alejandro
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dc.contributor.author
Santillán, Miguel Ángel
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dc.contributor.author
Zapata, Sonia Cristina
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dc.date.available
2023-04-21T11:01:59Z
dc.date.issued
2012-02
dc.identifier.citation
Travaini, 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.identifier.issn
0165-0521
dc.identifier.uri
http://hdl.handle.net/11336/194840
dc.description.abstract
We 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.format
application/pdf
dc.language.iso
eng
dc.publisher
Taylor & Francis Ltd
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dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
ARGENTINEAN PATAGONIA
dc.subject
BUTEO POLYOSOMA
dc.subject
DIET
dc.subject
EUROPEAN HARE
dc.subject
FUNCTIONAL RESPONSE
dc.subject.classification
Ecología
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dc.subject.classification
Ciencias Biológicas
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dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
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dc.title
Diet of the Red-backed Hawk (Buteo polyosoma) in two environmentally contrasting areas of Patagonia
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2023-04-20T12:40:01Z
dc.journal.volume
47
dc.journal.number
1
dc.journal.pagination
25-32
dc.journal.pais
Reino Unido
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dc.journal.ciudad
Londres
dc.description.fil
Fil: Travaini, Alejandro. Universidad Nacional de la Patagonia Austral; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
dc.description.fil
Fil: Santillán, Miguel Ángel. Universidad Nacional de la Patagonia Austral; Argentina
dc.description.fil
Fil: Zapata, Sonia Cristina. Universidad Nacional de la Patagonia Austral; Argentina
dc.journal.title
Studies on Neotropical Fauna and Environment
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dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://www.tandfonline.com/doi/abs/10.1080/01650521.2011.649948
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1080/01650521.2011.649948
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