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	Provedor de dados Hornero (2) Autor Alvarado O,Sergio A (1) Alvarado O.,Sergio (1) Corales Stappung,E. Soraya (1) Dellacasa M,Varia A (1) Figueroa R,Ricardo A (1) Figueroa Rojas,Ricardo A. (1) Schlatter,Roberto P (1) Mais... Palavra-chave Buteo polyosoma (2) Red-backed Hawk (2) Chilean Patagonia (1) Diet (1) Gliding (1) Hovering (1) Nevados de Chillán (1) Oligoryzomys longicaudatus (1) Prey selection (1) Soaring (1) Mais... Tipo do documento Info:eu-repo/semantics/article (1) Info:eu-repo/semantics/other (1) Ano 2011 (1) 2003 (1) País Argentina (2) Idioma Inglês (2)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 2 Primeira ... 1 ... Última Diet of the Red-backed Hawk (Buteo polyosoma) in a forested area of the Chilean Patagonia and its relation to the abundance of rodent prey Hornero Figueroa Rojas,Ricardo A.; Corales Stappung,E. Soraya; Alvarado O.,Sergio. The diet of Red-backed Hawk (Buteo polyosoma) was quantified by analyzing 40 pellets collected during winter and spring 1999 and winter 2000 in a forested area of Aysén, Chilean Patagonia. Rodents were the most numerous prey (82% of all prey), and accounted for the highest contribution to total biomass (83%). Among rodents, Oligoryzomys longicaudatus was the most consumed prey species, accounting for 70% of total number and 64% of total biomass. Birds accounted for less than 6% in number, but their biomass contribution was significantly higher (more than 15%). Insects constituted 12% in number, but less than 0.5% of total biomass. The Red-backed Hawk seemed to consume Oligoryzomys longicaudatus according to their field abundance. Also, it seemed to prey... Tipo: Info:eu-repo/semantics/article Palavras-chave: Buteo polyosoma; Chilean Patagonia; Diet; Oligoryzomys longicaudatus; Prey selection; Red-backed Hawk. Ano: 2003 URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0073-34072003000100006 Flight behaviour of the Red-backed Hawk (Buteo polyosoma) during summer in Nevados de Chillán, Chile Hornero Dellacasa M,Varia A; Figueroa R,Ricardo A; Alvarado O,Sergio A; Schlatter,Roberto P. We describe the flight behaviour of the Red-backed Hawk (Buteo polyosoma) during summer in Nevados de Chillán, Chile. Flight types most often used were gliding, wind-hovering and soaring (36.7%, 29.4% and 27.8% of the flying time, respectively). Spent time in gliding and wind-hovering peaked at mid-afternoon (17:00-19:00 h). Conversely, soaring was highest between mid-morning (10:00-11:00 h) and mid-day (13:00-14:00 h). Red-backed Hawk individuals appeared to use these flight types in an opportunistically manner using advantageous microclimatic and topographic conditions. Tipo: Info:eu-repo/semantics/other Palavras-chave: Buteo polyosoma; Gliding; Hovering; Nevados de Chillán; Red-backed Hawk; Soaring. Ano: 2011 URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0073-34072011000200012 Registros recuperados: 2 Primeira ... 1 ... Última

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