首页> 外文期刊>The wilson journal of ornithology >Observations of Indirect Filial Cannibalism in Response to Nest Failure of Black-crowned Night-Herons (Nycticorax nycticorax)
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Observations of Indirect Filial Cannibalism in Response to Nest Failure of Black-crowned Night-Herons (Nycticorax nycticorax)

机译:黑冠夜鹭(Nycticorax nycticorax)对巢破坏的反应中间接孝道食人现象的观察

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During 2011, four separate instances of indirect filial cannibalism, whereby adults consumed their young that died from unknown causes, were observed using video-monitoring techniques in a nesting colony of Black-crowned Night-Herons (Nycticorax nycticorax) on Alcatraz Island. Though they were not observed actively killing their young, in all four observations adult Black-crowned Night-Herons consumed their young following death (i.e., indirect filial cannibalism). We could not determine cause of chick mortality, but parental neglect was likely a contributing factor in at least two instances. Indirect filial cannibalism is not commonly documented among birds, and understanding how cannibalism contributes to nest failure can help researchers better understand factors that limit nesting populations.
机译:2011年期间,在恶魔岛的黑冠夜鹭(Nycticorax nycticorax)筑巢地中,通过视频监控技术观察到了四个单独的间接孝子食人事件,成年人吞噬了死于未知原因的年轻人。尽管未观察到他们积极杀死年轻人,但在所有四项观察中,成年的黑冠夜鹭在死亡后(即间接孝子食人)消灭了他们的年轻人。我们无法确定引起小鸡死亡的原因,但父母的忽视可能是至少两个案例中的一个促成因素。间接的孝道食人症在鸟类中并不常见,而了解食人性如何导致巢灾可以帮助研究人员更好地理解限制巢穴数量的因素。

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