Dispersal and alternative breeding site fidelity strategies in an amphibian

peer reviewed ; Dispersal (i.e., movement from a natal or breeding site to another breeding site) is a central process in ecology and evolution as it affects the eco-evolutionary dynamics of spatially structured populations. Dispersal evolution is regulated by the balance between costs and benefits, which is influenced by the individual phenotype (i.e., phenotype-dependent dispersal) and environmental factors (i.e., condition-dependent dispersal). Even though these processes have been extensively studied in species with simple life cycles, our knowledge about these mechanisms in organisms disp... Mehr ...

Verfasser: Denoël, Mathieu
Dalleur, séverine
Langrand, Estelle
Besnard, Aurélien
Cayuela, Hugo
Dokumenttyp: journal article
Erscheinungsdatum: 2018
Verlag/Hrsg.: Blackwell Publishing
Schlagwörter: dispersal / movement / habitat supplementation / habitat complementation / ecology / pond / site fidelity / site infedility / seasonal movement / dispersal syndrome / CMR / RFID telemetry / PIT-tag / multi event capture-recapture model / personality / natura2mil / Belgium / Triturus cristatus / crested newt / amphibian / pool / tank / Social & behavioral sciences / psychology / Animal psychology / ethology & psychobiology / Life sciences / Aquatic sciences & oceanology / Environmental sciences & ecology / Sciences sociales & comportementales / psychologie / Psychologie animale / éthologie & psychobiologie / Sciences du vivant / Sciences aquatiques & océanologie / Sciences de l’environnement & écologie
Sprache: Englisch
Permalink: https://search.fid-benelux.de/Record/base-26976821
Datenquelle: BASE; Originalkatalog
Powered By: BASE
Link(s) : https://orbi.uliege.be/handle/2268/216482

peer reviewed ; Dispersal (i.e., movement from a natal or breeding site to another breeding site) is a central process in ecology and evolution as it affects the eco-evolutionary dynamics of spatially structured populations. Dispersal evolution is regulated by the balance between costs and benefits, which is influenced by the individual phenotype (i.e., phenotype-dependent dispersal) and environmental factors (i.e., condition-dependent dispersal). Even though these processes have been extensively studied in species with simple life cycles, our knowledge about these mechanisms in organisms displaying complex life cycles remains fragmentary. In fact, little is specifically known about how the interplay between individual and environmental factors may lead to alternative dispersal strategies that, in turn, lead to the coexistence of contrasted site fidelity phenotypes. In this paper, we examined breeding dispersal in a pond-breeding amphibian, the great crested newt (Triturus cristatus), within usual walking distances for a newt. We took advantage of recent developments in multi-event capture-recapture models and used capture-recapture data (946 newts marked) collected in a spatially structured population occupying a large pond network (73 ponds). We showed a high rate of breeding site infidelity (i.e., pond use) and the coexistence of two dispersal phenotypes, namely, a highly pond faithful phenotype and a dispersing phenotype. Individuals that were site faithful at time t-1 were therefore more likely to remain site faithful at time t. Our results also demonstrated that the probability that individuals belong to one or the other dispersal phenotypes depended on environmental and individual factors. In particular, we highlighted the existence of a dispersal syndrome implying a covariation pattern among dispersal behavior, body size, and survival. Our work opens new research prospects in the evolution of dispersal in organisms displaying complex life cycles and raises interesting questions about the evolutionary ...