Cannibalism in Raptors: A Review

摘要: Feeding strategies, including cannibalism (in which an individual eats a member of the same species), are important aspect predator ecology. Cannibalism comprises five forms in raptors: siblicide, filicide, non-parental infanticide, conspecific strife, and scavenging. by raptors has been documented opportunistically for over century, but it is unknown how frequent or widespread behavior is. We performed first systematic literature review meta-analyses studies documenting scavenging raptors. found 29 reports these types cannibalism; we did not siblicide due to high frequency behavior, making nearly ubiquitous among Filicide had twice as many (n = 11, 37.9%) any other type cannibalism. Most were direct observations 23, 79.3%), half came from North America 14, 48.3%) approximately third Europe 10, 34.5%). The involved 25 raptor species four families, with those Accipitridae most common 19, 65.5%). varies involves nestlings, easier kill than adults, possibly because brood reduction can help stronger young survive. Documented increasing, recent technological advancements that have increased our ability document ecological processes. Nevertheless, encourage future under-represented locations taxa less well studied.