Animal life history is shaped by the pace of life and the distribution of age-specific mortality and reproduction

Kevin Healy*, Thomas H G Ezard, Owen R Jones, Roberto Salguero-Gómez, Yvonne M Buckley

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Resumé

Animals exhibit an extraordinary diversity of life history strategies. These realized combinations of survival, development and reproduction are predicted to be constrained by physiological limitations and by trade-offs in resource allocation. However, our understanding of these patterns is restricted to a few taxonomic groups. Using demographic data from 121 species, ranging from humans to sponges, we test whether such trade-offs universally shape animal life history strategies. We show that, after accounting for body mass and phylogenetic relatedness, 71% of the variation in animal life history strategies can be explained by life history traits associated with the fast-slow continuum (pace of life) and with a second axis defined by the distribution of age-specific mortality hazards and the spread of reproduction. While we found that life history strategies are associated with metabolic rate and ecological modes of life, surprisingly similar life history strategies can be found across the phylogenetic and physiological diversity of animals.

OriginalsprogEngelsk
TidsskriftNature Ecology & Evolution
Vol/bind3
Sider (fra-til)1217-1224
Antal sider10
ISSN2397-334X
DOI
StatusUdgivet - aug. 2019

Fingeraftryk

life history
mortality
animals
phylogenetics
animal
resource allocation
life history trait
relatedness
sponge
phylogeny
body mass
distribution
animal life
hazard
demographic statistics
testing

Citer dette

Healy, Kevin ; Ezard, Thomas H G ; Jones, Owen R ; Salguero-Gómez, Roberto ; Buckley, Yvonne M. / Animal life history is shaped by the pace of life and the distribution of age-specific mortality and reproduction. I: Nature Ecology & Evolution. 2019 ; Bind 3. s. 1217-1224.
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abstract = "Animals exhibit an extraordinary diversity of life history strategies. These realized combinations of survival, development and reproduction are predicted to be constrained by physiological limitations and by trade-offs in resource allocation. However, our understanding of these patterns is restricted to a few taxonomic groups. Using demographic data from 121 species, ranging from humans to sponges, we test whether such trade-offs universally shape animal life history strategies. We show that, after accounting for body mass and phylogenetic relatedness, 71{\%} of the variation in animal life history strategies can be explained by life history traits associated with the fast-slow continuum (pace of life) and with a second axis defined by the distribution of age-specific mortality hazards and the spread of reproduction. While we found that life history strategies are associated with metabolic rate and ecological modes of life, surprisingly similar life history strategies can be found across the phylogenetic and physiological diversity of animals.",
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Animal life history is shaped by the pace of life and the distribution of age-specific mortality and reproduction. / Healy, Kevin; Ezard, Thomas H G; Jones, Owen R; Salguero-Gómez, Roberto; Buckley, Yvonne M.

I: Nature Ecology & Evolution, Bind 3, 08.2019, s. 1217-1224.

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

TY - JOUR

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