publication . Article . 2013

Atividade de forrageio de gavião-caramujeiro, Rostrhamus sociabilis (Aves: Accipitridae) em áreas úmidas do sul do Brasil

FB Bergmann; HLC Amaral; DP Pinto; CC Chivittz; AM Tozetti;
Open Access English
  • Published: 01 May 2013
  • Publisher: Instituto Internacional de Ecologia
Abstract
The snail kite (Rostrhamus sociabilis) is widely distributed in the American continent. Its specialised diet consists mostly of the gastropod mollusk Pomacea sp and its foraging strategy probably varies depending on the season, prey availability, and climate factors, which can be reflected in its semi-nomad behaviour. This study was aimed at examining the hunting strategy of the snail kite, and its association with climate factors and habitat heterogeneity. Direct observations of birds between January 2010 and March 2011 in southernmost Brazil revealed that hunting was still the predominant foraging strategy (79% of records) to capture mollusks. Despite morpholo...
Subjects
free text keywords: feeding, wetlands, predation, trophic ecology, alimentação, banhados, predação, ecologia trófica, General Agricultural and Biological Sciences, Wetland, geography.geographical_feature_category, geography, Vegetation, Marsh, Snail, biology.animal, biology, Ecology, Spatial heterogeneity, Accipitridae, biology.organism_classification, Foraging
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publication . Article . 2013

Atividade de forrageio de gavião-caramujeiro, Rostrhamus sociabilis (Aves: Accipitridae) em áreas úmidas do sul do Brasil

FB Bergmann; HLC Amaral; DP Pinto; CC Chivittz; AM Tozetti;