...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Canadian Journal of Zoology >Song repertoire size, not territory location, predicts reproductive success and territory tenure in a migratory songbird
【24h】

Song repertoire size, not territory location, predicts reproductive success and territory tenure in a migratory songbird

机译：歌曲曲目的大小，而不是领土位置，可以预测迁徙鸣鸟的繁殖成功和领土权属

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

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 mehdia (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 usto 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 more successful territory tenure. There was no effect of either repertoire size or territory location on overwinter return. We conclude that intrinsic male phenotype, indicated by song repertoire size, is an important predictor of male fitness, independent of breeding-territory location in this migratory population, and that the value of specific territories may depend largely on previous experience.
机译：在居住环境的景观在质量上随地形变化而变化的情况下，预计高素质的人会垄断高品质的领土。因此，在许多情况下，可能难以区分个人素质与地区素质对长期适应性的相对影响。我们使用了来自东宋麻雀（Melospiza melodia mehdia（A. Wilson，1810））的迁徙种群的9年现场数据集来评估雄性歌曲质量的相对贡献（以歌曲库大小衡量）和领土位置对健身要素包括年度生殖成功，越冬回报率和年间领土使用权。歌曲曲目大小无法预测地区位置，因此我们可以分别评估地区位置和歌曲质量。宋曲目的大小，但不是领土位置，预测了年度繁殖成功。此外，具有较大保留曲目的雄性在随后的繁殖季节之间移动的距离更短，这表明该地区的保有权更成功。曲目的大小或地区位置对越冬返回没有影响。我们得出的结论是，内在的雄性表型（由歌曲库大小指示）是雄性适应性的重要预测指标，与该迁徙人口的繁殖地区位置无关，并且特定地区的价值可能很大程度上取决于先前的经验。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号