Reproductive improvement and senescence in a long-lived bird

Maren Rebke; Tim Coulson; Peter H. Becker; James W. Vaupel

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Reproductive improvement and senescence in a long-lived bird

机译：长寿鸟类的生殖改善和衰老

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摘要

Heterogeneity within a population is a pervasive challenge for studies of indiyidual life-histories. Population-level patterns in age-specific reproductive success can be broken down into relative contributions from selective disappearance, selective appearance of individuals into the study population, and average change in performance for survivors (average ontogenetic development). In this article, we provide an exact decomposition. We apply our formula to data on the reproductive performance of a well characterized population of common terns (Sterna hirundo). We show that improvements with age over most of adult life and senescence at old ages are primarily due to a genuine change in the mean among surviving individuals rather than selective disappearance or selective appearance of individuals. Average ontogenetic development accounts for approximately 87% of the overall age-specific population change.

机译：人口内部的异质性是对个体生活史研究的普遍挑战。特定年龄段生殖成功的人群水平模式可以分为选择性失踪，个体选择性进入研究人群以及幸存者平均表现变化（平均个体发育）的相对贡献。在本文中，我们提供了精确的分解。我们将公式应用于具有良好特征的普通燕鸥（Sterna hirundo）种群繁殖性能的数据。我们显示，在成年后的大部分时间里，年龄的增长和老年时的衰老的改善主要是由于幸存的个体中均值的真正变化，而不是个体的选择性消失或选择性出现。平均个体发育发育约占按年龄划分的总体人口变化的87％。

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来源
《Proceedings of the National Academy of Sciences of the United States of America》 |2010年第17期|P.7841-7846|共6页
作者
Maren Rebke; Tim Coulson; Peter H. Becker; James W. Vaupel;
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作者单位

Max Planck Institute for Demographic Research, 18057 Rostock, Germany Department of Life Sciences, Imperial College London, Silwood Park, Ascot, Berkshire SL5 7PY, United Kingdom;

rnDepartment of Life Sciences, Imperial College London, Silwood Park, Ascot, Berkshire SL5 7PY, United Kingdom;

rnInstitute of Avian Research 'Vogelwarte Helgoland', 26386 Wilhelmshaven, Germany;

rnMax Planck Institute for Demographic Research, 18057 Rostock, Germany;

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收录信息美国《科学引文索引》(SCI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
原文格式 PDF
正文语种 eng
中图分类
关键词
common tern (Sterna hirundo); age-specific reproduction; aging; heterogeneity; exact decomposition approach;

机译：普通燕鸥（Sterna hirundo）;特定年龄的生殖;老化;异质性精确分解法;

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6. Reproductive improvement and senescence in a long-lived bird [O] . Maren Rebke, Tim Coulson, Peter H. Becker, 2010

机译：长寿鸟类的生殖改善和衰老
7. Reproductive improvement and senescence in a long-lived bird. [O] . Rebke, M, Coulson, T, Becker, PH, 2010

机译：长寿鸟类的生殖改善和衰老。

Reproductive improvement and senescence in a long-lived bird

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