Song repertoire size, not territory location, predicts reproductive success and territory tenure in a migratory songbird
Song repertoire size, not territory location, predicts reproductive success and territory tenure in a migratory songbird
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歌曲曲目的大小，而不是领地位置，预测了迁徙鸣禽的繁殖成功率和领地保有权
DOI：
10.1139/cjz-2015-0039
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发表时间：
2015
影响因子：
1.4
通讯作者：
E. MacDougall
中科院分区：
文献类型：
--
作者：
D. Potvin;P. W. Crawford;S. MacDougall;E. MacDougall
在占据环境的领域性动物中，高质量的个体被预测会垄断高质量的领土。因此，在许多情况下，可能很难区分个体质量与领土质量对长期适应性的相对影响。本研究利用了一个来自迁徙的东部松麻雀（Melospiza melodia melodia（A. Wilson，1810）），以评估男性歌曲质量（以歌曲曲目大小衡量）和领土位置的健身组件，包括年度繁殖成功，越冬回报率，和年间的领土保有权的相对贡献。歌曲曲目的大小并没有预测领土的位置，让我们评估领土的位置和歌曲的质量分开。歌曲曲目的大小，但不是领土的位置，预测每年的繁殖成功。此外，具有较大剧目的雄性在随后的繁殖季节之间移动的距离较小，这表明...
In territorial animals occupying environments that vary in quality over the landscape, high-quality individuals are predicted to monopolize high-quality territories. Thus, in many cases it may be difficult to disentangle the relative effects of individual quality from those of territory quality on long-term fitness. We used a 9-year field data set from a migratory population of Eastern Song Sparrows (Melospiza melodia melodia (A. Wilson, 1810)) to evaluate the relative contributions of male song quality (as measured by song repertoire size) and territory location to fitness components including annual reproductive success, overwinter return rates, and between-year territory tenure. Song repertoire size did not predict territory location, allowing us to evaluate territory location and song quality separately. Song repertoire size, but not territory location, predicted annual reproductive success. Moreover, males with larger repertoires moved smaller distances between subsequent breeding seasons, suggesting...