首页> 外文期刊>The wilson journal of ornithology >Simultaneous Polygyny by a Male Black-capped Vireo (Vireo atricapilla) in Central Texas
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Simultaneous Polygyny by a Male Black-capped Vireo (Vireo atricapilla) in Central Texas

机译:由德克萨斯州中部的男性黑冠Vi(Vireo atricapilla)同时进行一夫多妻制

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摘要

Although polygyny is common and regular among a small proportion of North American songbirds, some socially monogamous passerines may also exhibit occasional polygyny. We present evidence for only the second documented case of polygyny within the Vireonidae and the first documentation for polygyny in the endangered songbird the Black-capped Vireo (Vireo atricapilla). We located two simultaneous nests being tended by the same color-banded male vireo in a territory adjacent to an unpaired male. We suspect that differences in territory quality, rather than male quality, unbalanced sex ratios, or asynchronous settlement, were drivers of polygyny in this example.
机译:尽管一夫多妻制在少数北美鸣禽中是常见且有规律的,但一些社交一夫一妻制的er鱼也可能偶尔出现一夫多妻制。我们仅提供证据来证明在病毒科中发生第二例多妻制病例,并针对濒临灭绝的鸣禽黑冠病毒(Vireo atricapilla)中的一夫多妻制首次发现证据。我们在不成对雄性的邻近区域中,发现了两个同时被同一色带雄性雄性病毒抚育的巢。我们怀疑,在这个例子中,地区质量的差异而非男性质量,性别比例失衡或异步定居是造成一夫多妻制的驱动力。

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