Comportamento de forrageamento do pernilongo-de-costas-brancas, Himantopus melanurus (Vieillot, 1817) (Aves: Recurvirostridae) em Santa Gertrudes, SP, Brasil
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Data
2006-07-01
Autores
Gussoni, Carlos Otávio A. [UNESP]
Guaraldo, André C. [UNESP]
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Resumo
The foraging behavior of two White-backed stilts (Himantopus melanurus) was studied in a lake at the municipality of Santa Gertrudes, state of São Paulo, Brazil. The foraging strategies observed were classified in two categories: pluging (65.8% of total maneuvers) and pecking (34.3%). Only in 26.8% of the foraging maneuvers the individuals captured preys (72.9% by plunging and 27.1% by pecking). When comparing both strategies, plunging was successful 29.7% of the times, but pecking only 21.2%. At the study site, individuals foraged only up to 20 m away from the lake margin. The foraging area exploited by the White-backed stilts was estimated in about 720 m 2. Foraging activities lasted since before sunrise until after sunset. © 2006 Instituto de Ciências Biológicas - UFMG.
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Foraging behavior, Pecking, Plunging, White-backed stilt, diving behavior, feeding ground, foraging behavior, lacustrine environment, prey capture, wader, Brazil, Santa Gertrudes, Sao Paulo [Brazil], South America, Aves, Charadriidae, Himantopus melanurus
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Lundiana, v. 7, n. 2, p. 149-150, 2006.