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首页> 外文期刊>Journal of Avian Biology >Plumage brightness predicts non-breeding season territory quality in a long-distance migratory songbird, the American redstart Setophaga ruticilla
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Plumage brightness predicts non-breeding season territory quality in a long-distance migratory songbird, the American redstart Setophaga ruticilla

机译：全身亮度预测长距离迁徙鸣鸟美国红尾start（Setophaga ruticilla）的非繁殖季节领土质量

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摘要

Many species of birds exhibit brilliant ornamental plumage, yet most research on the function and evolution of plumage has been confined to the breeding season. In the American redstart Setophaga ruticilla, a long-distance Neotropical-Nearctic migratory bird, the acquisition of a winter territory in high-quality habitat advances spring departure and subsequent arrival on breeding areas, and increases reproductive success and annual survival. Here, we show that males holding winter territories in high-quality, black mangrove habitats in Jamaica have brighter yellow-orange tail feathers than males occupying territories in poor-quality second-growth scrub habitats. Moreover, males arriving on the breeding grounds from higher-quality winter habitats (inferred by stable-carbon isotopes) also had brighter tail feathers. Because behavioral dominance plays an important role in the acquisition of winter territories, plumage brightness may also be related to fighting ability and the acquisition and maintenance of territories in high-quality habitat. These results highlight the need for further research on the relationships between plumage coloration, behavior, and the ecology of over-wintering migratory birds.
机译：许多鸟类都表现出出色的观赏羽毛，但是大多数关于羽毛的功能和进化的研究都局限于繁殖季节。在美国新品种长尾金丝雀（Setophaga ruticilla）中，这是一种长距离的新热带-南极候鸟，在优质栖息地获得冬季领土可以提前春季迁徙并随后到达繁殖区，并提高繁殖成功率和年生存率。在这里，我们表明，在牙买加优质高品质红树林栖息地中拥有冬季领土的雄性比劣质第二生长灌木栖息地中具有领土的雄性具有更亮的橙黄色尾羽。此外，从较高质量的冬季栖息地（由稳定碳同位素推断）到达繁殖场的雄性尾羽也更亮。由于行为优势在获取冬季领土方面起着重要作用，因此羽毛亮度还可能与战斗力以及优质栖息地中领土的获取和维护有关。这些结果强调需要进一步研究羽毛颜色，行为和越冬候鸟生态之间的关系。

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