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Influence of Life-History Tactics on Transient Dynamics: A Comparative Analysis across Mammalian Populations

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  • معلومة اضافية
    • Contributors:
      Department of Biology Trondheim (IBI NTNU); Norwegian University of Science and Technology Trondheim (NTNU); Norwegian University of Science and Technology (NTNU)-Norwegian University of Science and Technology (NTNU); Centre d’Ecologie Fonctionnelle et Evolutive (CEFE); Université Paul-Valéry - Montpellier 3 (UPVM)-Institut National de la Recherche Agronomique (INRA)-Centre international d'études supérieures en sciences agronomiques (Montpellier SupAgro)-École Pratique des Hautes Études (EPHE); Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD Occitanie )-Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro); Office National de la Chasse et de la Faune Sauvage (ONCFS); Department of Zoology Oxford; University of Oxford; Stanford University; Laboratoire de Biométrie et Biologie Evolutive - UMR 5558 (LBBE); Université Claude Bernard Lyon 1 (UCBL); Université de Lyon-Université de Lyon-VetAgro Sup - Institut national d'enseignement supérieur et de recherche en alimentation, santé animale, sciences agronomiques et de l'environnement (VAS)-Centre National de la Recherche Scientifique (CNRS)
    • بيانات النشر:
      CCSD
      University of Chicago Press
    • الموضوع:
      2014
    • Collection:
      HAL Lyon 1 (University Claude Bernard Lyon 1)
    • نبذة مختصرة :
      International audience ; Most mammalian populations suffer from natural or human-induced disturbances; populations are no longer at the equilibrium (i.e., at stable [st]age distribution) and exhibit transient dynamics. From a literature survey, we studied patterns of transient dynamics for mammalian species spanning a large range of life-history tactics and population growth rates. For each population, we built an age-structured matrix and calculated six metrics of transient dynamics. After controlling for possible confounding effects of the phylogenetic relatedness among species using a phylogenetic principal component analysis and phylogenetic generalized least squares models, we found that short-term demographic responses of mammalian populations to disturbance are shaped by generation time and growth rate. Species with a slow pace of life (i.e., species with a late maturity, a low fecundity, and a long life span) displayed decreases in population size after a disturbance, whereas fast-living species increased in population size. The magnitude of short-term variation in population size increased with asymptotic population growth, being buffered in slow-growing species (i.e., species with a low population growth rate) but large in fast-growing species. By demonstrating direct links between transient dynamics, life history (generation time), and ecology (demographic regime), our comparative analysis of transient dynamics clearly improves our understanding of population dynamics in variable environments and has clear implications for future studies of the interplay between evolutionary and ecological dynamics. As most populations in the wild are not at equilibrium, we recommend that analyses of transient dynamics be performed when studying population dynamics in variable environments.
    • الرقم المعرف:
      10.1086/677929
    • الدخول الالكتروني :
      https://hal.science/hal-03282079
      https://hal.science/hal-03282079v1/document
      https://hal.science/hal-03282079v1/file/Gamelon%20et%20al.%202014%20Am%20Nat.pdf
      https://doi.org/10.1086/677929
    • Rights:
      info:eu-repo/semantics/OpenAccess
    • الرقم المعرف:
      edsbas.E4434F7D