Maintenance of nest quality in Adélie penguins Pygoscelis adeliae: an additional benefit to life in the center
Maintenance of nest quality in Adélie penguins Pygoscelis adeliae: an additional benefit to life in the center
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维持阿德利企鹅 Pygoscelis adeliae 的巢穴质量：对中心生活的额外好处
DOI：
10.1007/s00300-021-02894-5
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发表时间：
2021
期刊：
影响因子：
1.7
通讯作者：
Ballard, Grant
中科院分区：
文献类型：
--
作者：
Morandini, Virginia;Dugger, Katie M.;Lescroël, Amélie;Schmidt, Annie E.;Ballard, Grant
在殖民地海鸟，筑巢或羽翼成功的差异已与繁殖聚集（亚殖民地）内的巢位置的差异：不太成功的巢位于外围，更成功的巢更接近中心。对于俾格斯锥企鹅来说，中央的巢往往更大，巢的大小是个体质量的一个指标，因为石头必须单独收集，所以更多的石头反映了更多的个体努力。巢材料的竞争，包括从另一个巢的材料的收集，也经常被描述在企鹅和其他殖民地seabirds.We使用的数据收集在孵化阶段从总共20个亚群在两个独立的繁殖殖民地阿德利企鹅（Pygoscelis adeliae）罗斯岛（南极洲）测试繁殖成功的巢的位置的影响。我们还研究了巢石的竞争如何发生在不同的强度，这取决于亚群的大小，巢的位置和质量在一个亚群。我们发现，外围巢经历了较低的繁殖成功率和较高的个人试图去除结石的去除成功率比从巢向中心。较高的成本与维护和捍卫巢，招致更高的去除压力可能是一个额外的因素参与较低的繁殖成功的外围巢。
In colonial seabirds, differences in the nesting or fledging success have been associated with differences in nest position within the breeding aggregation (subcolony): less successful nests are located on the periphery, with more successful nests closer to the center. ForPygoscelidpenguins, central nests tend to be larger, with nest size being an indicator of individual quality because stones must be gathered singly, so more stones reflect more individual effort. Competition for nest materials, including the collection of materials from another’s nest, has also frequently been described in penguins and other colonial seabirds.We used the data collected during the incubation stage from a total of 20 subcolonies at two separate breeding colonies of Adélie penguins (Pygoscelis adeliae)on Ross Island (Antarctica) to test the influence of nest position on breeding success. We also investigated how competition for nest stones could occur at different intensities depending on size of the subcolony, nest position, and quality within a subcolony. We found that peripheral nests experienced lower breeding success and higher number of individuals attempting to remove stones with higher removal success rates than from nests toward the center. The higher costs associated with maintaining and defending nests that incur higher removal pressure could be an additional factor involved in the lower breeding success of peripheral nests.
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