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

Owen R. Jones 1, * Jean-Michel Gaillard 2 Shripad Tuljapurkar 3 Jussi S. Alho 4 Kenneth B. Armitage 5 Peter H. Becker 6 Pierre Bize 7 Jon Brommer 8 A. Charmantier 9, 10 Marie Charpentier 10, 11 Tim Clutton-Brock 12 F. Stephen Dobson 13 Marco Festa-Bianchet 14 Lars Gustafsson 15 Henrik Jensen 16 Carl G. Jones 17 Bo-Göran Lillandt 4 Robin Mc Cleery 9 Juha Merilä 4 Peter Neuhaus 18 Malcolm A.C. Nicoll 19 Ken Norris 19 Madan K. Oli 20 Josephine Pemberton 21 Hannu Pietiäinen 8 Thor Harald Ringsby 16 Alexandre Roulin 22 Bernt-Erik Saether 23 Joanna M. Setchell 11, 24 Ben C. Sheldon 9 Paul M. Thompson 25 Henri Weimerskirch 26 E. Jean Wickings 11 Tim Coulson 1 
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.Wefind 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.
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Submitted on : Thursday, September 4, 2008 - 12:02:56 PM
Last modification on : Friday, August 5, 2022 - 10:43:50 AM

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Owen R. Jones, Jean-Michel Gaillard, Shripad Tuljapurkar, Jussi S. Alho, Kenneth B. Armitage, et al.. Senescence rates are determined by ranking on the fast–slow life-history continuum. Ecology Letters, Wiley, 2008, 11 (7), pp.664-673. ⟨10.1111/j.1461-0248.2008.01187.x⟩. ⟨hal-00318567⟩



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