American White Pelicans Force Copulations with Nestlings

Christopher M. Somers; Victoria A. Kjoss; R. Mark Brigham

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American White Pelicans Force Copulations with Nestlings

机译：美国白鹈鹕强迫与雏鸟交配

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We observed 56 forced copulation (FC) events in a breeding colony of American White Pelicans (Pelecanus erythrorhynchos) in Saskatchewan, Canada during the 2005 nesting season. All FCs were directed at nestlings >21 days of age that were not continuously attended by an adult. The onset of FCs occurred in close synchrony with an unexpected late-season increase in adult copulation attempts. We suggest that FC directed at nestlings is not simply an aberrant and non-adaptive behavior. Rather, copulations with nestlings result from adult male pelicans being inappropriately stimulated to copulate with nestlings when actually seeking copulations with adult females.

机译：在2005年的筑巢季节，我们在加拿大萨斯喀彻温省的美国白鹈鹕（Pelecanus erythrorhynchos）繁殖地中观察到56次强迫交配（FC）事件。所有FC都针对未成年人连续照看的> 21日龄的雏鸟。 FC的发生与成年交配尝试的意外后期增加紧密同步。我们建议针对雏鸟的FC不仅仅是一种异常且非自适应的行为。而是，当实际寻求与成年雌性交配时，成年雄性鹈鹕被不适当地刺激成雏鸟，导致雏鸟交配。

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《The wilson journal of ornithology》 |2007年第2期|p.279-283|共5页
作者
Christopher M. Somers; Victoria A. Kjoss; R. Mark Brigham;
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正文语种 eng
中图分类动物学;
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American White Pelicans Force Copulations with Nestlings

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