Foraging success, kleptoparasitism and feeding techniques in scavenging seabirds: does crime pay?
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چکیده
منابع مشابه
Behavioral evidence of hunting and foraging techniques by a top predator suggests the importance of scavenging for preadults
Scavenging may be a regular feeding behavior for some facultative raptor species occupying low quality habitats and/or with little experience in hunting techniques. However, its importance has been largely underestimated due to methodological limitations in identifying the real proportion in the diet. Here, through direct observations, we assessed the hunting and foraging success of the threate...
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Foraging behavior has been extensively studied in harvester ants (Hymenoptera: Formicidae); however, there is little information about the determinants of foraging success. We developed a path analysis model to quantify the functional relationships among the components of foraging at the colony level (onset, duration, number of foragers) and foraging success. Variation in the onset of foraging ...
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Evidence that tufted puffins Fratercula cirrhata use colony overflights to reduce kleptoparasitism risk
Predation, foraging and mating costs are critical factors shaping life histories. Among colonial seabirds, colony overflights may enhance foraging or mating success, or diminish the risk of predation and kleptoparasitism. The latter possibility is difficult to test because low predation or kleptoparasitism rates could be due either to low danger or to effective countertactics by prey. Tufted pu...
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ژورنال
عنوان ژورنال: Helgoländer Meeresuntersuchungen
سال: 1998
ISSN: 0174-3597,1438-3888
DOI: 10.1007/bf02908747