文章基本信息

标题：COLIBRÍES CAZANDO JEJENES: EL CASO DE DOS ESPECIES DE AMAZILIA EN LOS ANDES COLOMBIANOS
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作者：Carlos Julián Idrobo ; José Oswaldo Cortés Herrera
期刊名称：Boletín SAO
印刷版ISSN：0123-9082
出版年度：2006
卷号：XVI
期号：02
出版社：Sociedad Antioqueña de Ornitología (SAO)
摘要：Although hummingbirds exhibit marked specializations for nectar-feeding, they consume insects in order to supply fat and protein requirements. Several strategies for insect-eating in hummingbirds have been reported, with studies documenting a close relationship between these strategies and the morphology of each species. In this note we report observations on two Amazilia species feeding on black flies (Simuliidae) that fed on domestic horses in two sites in the Colombian Andes. The feeding strategies used by these hummingbirds were “Hover- hawking” and “Rally-Hawking”. This behavior and the ecological relationships it may imply had not been previously reported. Although the findings reported here come from incidental observations, they support the idea that hummingbirds exhibit resilience to cope with anthropogenic pressures.
关键词：Amazilia castaneiventris, Amazilia cyanifrons, black flies, foraging horses, symbiosis