Senescence rates are determined by ranking on the fast-slow life-history continuum.

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State: Public
Version: author
Serval ID
serval:BIB_E91BD44E1CCE
Type
Article: article from journal or magazin.
Collection
Publications
Institution
Title
Senescence rates are determined by ranking on the fast-slow life-history continuum.
Journal
Ecology Letters
Author(s)
Jones O.R., Gaillard J.M., Tuljapurkar S., Alho J.S., Armitage K.B., Becker P.H., Bize P., Brommer J., Charmantier A., Charpentier M., Clutton-Brock T., Dobson F.S., Festa-Bianchet M., Gustafsson L., Jensen H., Jones C.G., Lillandt B.G., McCleery R., Merilä J., Neuhaus P., Nicoll M.A., Norris K., Oli M.K., Pemberton J., Pietiäinen H., Ringsby T.H., Roulin A., Saether B.E., Setchell J.M., Sheldon B.C., Thompson P.M., Weimerskirch H., Jean Wickings E., Coulson T.
ISSN
1461-0248[electronic], 1461-023X[linking]
Publication state
Published
Issued date
2008
Peer-reviewed
Oui
Volume
11
Number
7
Pages
664-673
Language
english
Notes
Publication types: Comparative Study ; Journal Article ; Research Support, N.I.H., Extramural
Publication Status: ppublish
Abstract
Comparative analyses of survival senescence by using life tables have identified generalizations including the observation that mammals senesce faster than similar-sized birds. These generalizations have been challenged because of limitations of life-table approaches and the growing appreciation that senescence is more than an increasing probability of death. Without using life tables, we examine senescence rates in annual individual fitness using 20 individual-based data sets of terrestrial vertebrates with contrasting life histories and body size. We find that senescence is widespread in the wild and equally likely to occur in survival and reproduction. Additionally, mammals senesce faster than birds because they have a faster life history for a given body size. By allowing us to disentangle the effects of two major fitness components our methods allow an assessment of the robustness of the prevalent life-table approach. Focusing on one aspect of life history - survival or recruitment - can provide reliable information on overall senescence.
Keywords
Aging, Animals, Birds/physiology, Body Size, Female, Mammals/physiology, Reproduction
Pubmed
Web of science
Create date
01/09/2008 23:44
Last modification date
20/08/2019 17:11
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