Reproductive improvement and senescence in a long-lived bird.

dc.contributor.author

Rebke, Maren

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Coulson, Tim

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Becker, Peter H

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Vaupel, James W

dc.coverage.spatial

United States

dc.date.accessioned

2017-06-02T19:39:38Z

dc.date.available

2017-06-02T19:39:38Z

dc.date.issued

2010-04-27

dc.description.abstract

Heterogeneity within a population is a pervasive challenge for studies of individual 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.

dc.identifier

https://www.ncbi.nlm.nih.gov/pubmed/20378836

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1002645107

dc.identifier.eissn

1091-6490

dc.identifier.uri

https://hdl.handle.net/10161/14787

dc.language

eng

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Proceedings of the National Academy of Sciences

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Proc Natl Acad Sci U S A

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10.1073/pnas.1002645107

dc.subject

Age Factors

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Aging

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Animals

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Charadriiformes

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Germany

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Models, Biological

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Observation

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Population Dynamics

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Reproduction

dc.title

Reproductive improvement and senescence in a long-lived bird.

dc.type

Journal article

pubs.author-url

https://www.ncbi.nlm.nih.gov/pubmed/20378836

pubs.begin-page

7841

pubs.end-page

7846

pubs.issue

17

pubs.organisational-group

Center for Population Health & Aging

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Duke

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Duke Population Research Institute

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Sanford School of Public Policy

pubs.publication-status

Published

pubs.volume

107

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