Evidence of reduced individual heterogeneity in adult survival of long-lived species

Péron Guillaume, Gaillard Jean-Michel, Barbraud Christophe, Bonenfant Christophe, Charmantier Anne, Choquet Rémi, Coulson Tim, Grosbois Vladimir, Loison Anne, Marzolin Gilbert, Owen-Smith Norman, Pardo Déborah, Plard Floriane, Pradel Roger, Toïgo Carole, Gimenez Olivier. 2016. Evidence of reduced individual heterogeneity in adult survival of long-lived species. Evolution, 70 (12) : 2909-2914.

Url - jeu de données - Entrepôt autre : https://doi.org/10.5061/dryad.bd7q6

Quartile : Q1, Sujet : ECOLOGY / Quartile : Q1, Sujet : GENETICS & HEREDITY / Quartile : Q1, Sujet : EVOLUTIONARY BIOLOGY

Résumé : The canalization hypothesis postulates that the rate at which trait variation generates variation in the average individual fitness in a population determines how buffered traits are against environmental and genetic factors. The ranking of a species on the slow‐fast continuum – the covariation among life‐history traits describing species‐specific life cycles along a gradient going from a long life, slow maturity, and low annual reproductive output, to a short life, fast maturity, and high annual reproductive output – strongly correlates with the relative fitness impact of a given amount of variation in adult survival. Under the canalization hypothesis, long‐lived species are thus expected to display less individual heterogeneity in survival at the onset of adulthood, when reproductive values peak, than short‐lived species. We tested this life‐history prediction by analysing long‐term time series of individual‐based data in nine species of birds and mammals using capture‐recapture models. We found that individual heterogeneity in survival was higher in species with short‐generation time (< 3 years) than in species with long generation time (> 4 years). Our findings provide the first piece of empirical evidence for the canalization hypothesis at the individual level from the wild.

Mots-clés Agrovoc : longévité, cycle de développement, biologie animale, analyse comparative, analyse de séries chronologiques, Capra ibex, Pagodroma nivea, chevreuil, chamois, Capreolus capreolus

Mots-clés complémentaires : Rupicapra rupicapra, Tragelaphus strepsiceros, Chroicocephalus ridibundus, Cyanistes caeruleus, Cinclus cinclus, Thalassarche melanophris

Mots-clés libres : Capture‐recapture, Comparative analyses, Individual differences, Life‐history evolution, Mixture models, Random‐effect models, Vertebrates

Classification Agris : L20 - Écologie animale
L10 - Génétique et amélioration des animaux
L52 - Physiologie animale - Croissance et développement

Champ stratégique Cirad : Axe 4 (2014-2018) - Santé des animaux et des plantes

Auteurs et affiliations

• Péron Guillaume, Smithsonian Conservation Biology Institute (USA) - auteur correspondant
• Gaillard Jean-Michel, CNRS (FRA)
• Barbraud Christophe, CNRS (FRA)
• Bonenfant Christophe, CNRS (FRA)
• Charmantier Anne, CNRS (FRA)
• Choquet Rémi, CNRS (FRA)
• Coulson Tim, University of Oxford (GBR)
• Grosbois Vladimir, CIRAD-ES-UPR AGIRs (FRA) ORCID: 0000-0003-1835-1434
• Loison Anne, CNRS (FRA)
• Marzolin Gilbert, CNRS (FRA)
• Owen-Smith Norman, University of the Witwatersrand (ZAF)
• Pardo Déborah, CNRS (FRA)
• Plard Floriane, CNRS (FRA)
• Pradel Roger, CNRS (FRA)
• Toïgo Carole, ONCFS (FRA)
• Gimenez Olivier, CNRS (FRA)

Source : Cirad-Agritrop (https://agritrop.cirad.fr/597696/)

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