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Selective consumption of rodents by the Variable hawk Geranoaetus polyosoma (Accipitriformes: Accipitridae) in the Atacama Desert, northern Chile
Muñoz-Pedreros, Andrés; Norambuena, Heraldo V; Gil, Claudia; Rau, Jaime.
Afiliação
  • Muñoz-Pedreros, Andrés; Universidad Católica de Temuco. Temuco. CL
  • Norambuena, Heraldo V; Centro de Estudios Agrarios y Ambientales. Valdivia. CL
  • Gil, Claudia; Centro de Estudios Agrarios y Ambientales. Valdivia. CL
  • Rau, Jaime; Centro de Estudios Agrarios y Ambientales. Valdivia. CL
Zoologia (Curitiba, Impr.) ; 37: e55615, Feb. 7, 2020. map, ilus, tab
Article em En | VETINDEX | ID: biblio-1504604
Biblioteca responsável: BR68.1
Localização: BR68.1
ABSTRACT
Geranoaetus polyosoma (Quoy & Gaimard, 1824) is a diurnal raptor widely distributed in South America. Although the trophic ecology of this bird has been more studied in the southern extreme of its range, little information is available on its dietary response to prey supply in desert environments. In the present study, we report on the trophic ecology of G. polyosoma in a sub-urban desert zone in northern Chile, with the following

objectives:

(1) to quantitatively describe its diet and (2) to determine its dietary selectivity in response to prey supply in the study area. The diet of G. polyosoma consisted mainly of rodents (97.2%). A greater preference (p 0.05) was observed for the following large prey items (> 19.5 g) two native rodent species, Phyllotis xanthopygus (Waterhouse, 1837) and Eligmodontia puerulus (Philippi, 1896); and two introduced rodent species Rattus rattus (Linnaeus, 1769) and R. norvegicus (Berkenhout, 1769).
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Texto completo: 1 Base de dados: VETINDEX Idioma: En Revista: Zoologia (Curitiba) / Zoologia (Curitiba, Impr.) Ano de publicação: 2020 Tipo de documento: Article / Project document

Texto completo: 1 Base de dados: VETINDEX Idioma: En Revista: Zoologia (Curitiba) / Zoologia (Curitiba, Impr.) Ano de publicação: 2020 Tipo de documento: Article / Project document