Reproductive improvement and senescence in a long-lived bird.

Loading...
Thumbnail Image

Date

2010-04-27

Journal Title

Journal ISSN

Volume Title

Repository Usage Stats

117
views
104
downloads

Citation Stats

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.

Department

Description

Provenance

Citation

Published Version (Please cite this version)

10.1073/pnas.1002645107

Publication Info

Rebke, Maren, Tim Coulson, Peter H Becker and James W Vaupel (2010). Reproductive improvement and senescence in a long-lived bird. Proc Natl Acad Sci U S A, 107(17). pp. 7841–7846. 10.1073/pnas.1002645107 Retrieved from https://hdl.handle.net/10161/14787.

This is constructed from limited available data and may be imprecise. To cite this article, please review & use the official citation provided by the journal.


Unless otherwise indicated, scholarly articles published by Duke faculty members are made available here with a CC-BY-NC (Creative Commons Attribution Non-Commercial) license, as enabled by the Duke Open Access Policy. If you wish to use the materials in ways not already permitted under CC-BY-NC, please consult the copyright owner. Other materials are made available here through the author’s grant of a non-exclusive license to make their work openly accessible.