Brazilian Journal of Biology | |
Foraging of Great Kiskadees (Pitangus sulphuratus) and food items offered to nestlings in the Pantanal | |
Rl Munin1  E. Fischer1  Jm. Longo1  | |
[1] ,Universidade Federal de Mato Grosso do SulCampo Grande MS ,Brazil | |
关键词: feeding behavior; foraging strategy; nestling diet; parental care; predation; comportamento alimentar; cuidado parental; dieta de ninhêgos; estratégia de forrageamento; predação; | |
DOI : 10.1590/S1519-69842012000300007 | |
来源: SciELO | |
【 摘 要 】
Feeding of Pitangus sulphuratus (Tyrannidae) nestlings have been poorly studied. Here we describe the foraging behavior of a P. sulphuratus pair and the searching and offering time of food items to nestlings in the Pantanal, Brazil. Data collection was carried out over 25 days on the outskirts of the Base de Estudos do Pantanal building, inhabited by insectivorous bats. Records were based on direct observations with the help of binocular. The pair required little time for searching for small insects and fruits, but these items comprised a little amount of food per event of capture. Some large prey was more time-costly for searching, but the long period that these food items were offered to nestlings overcompensated the searching time. Considering the time of feeding nestlings (benefit) in relation to the searching time by the parents (cost), bats and snails are the most advantageous items for P. sulphuratus parents feeding nestlings at the study site.
【 授权许可】
CC BY
All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License
【 预 览 】
Files | Size | Format | View |
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RO202005130172356ZK.pdf | 317KB | download |