Reference : Dispersal and alternative breeding site fidelity strategies in an amphibian
Scientific journals : Article
Social & behavioral sciences, psychology : Animal psychology, ethology & psychobiology
Life sciences : Aquatic sciences & oceanology
Life sciences : Environmental sciences & ecology
Dispersal and alternative breeding site fidelity strategies in an amphibian
Denoël, Mathieu mailto [Université de Liège - ULiège > Département de Biologie, Ecologie et Evolution > Biologie du comportement - Ethologie et psychologie animale >]
Dalleur, séverine [Université de Liège - ULiège > > Biologie du Comportement > >]
Langrand, Estelle [Université de Liège - ULiège > > Biologie du comportement > >]
Besnard, Aurélien [Centre National de la Recherche Scientifique - CNRS > PSL Research University, EPHE, UM, SupAgro, IRD, INRA, UMR 5175 CEFE > > >]
Cayuela, Hugo [University Lyon 1 > UMR 5023 LEHNA, Laboratoire d’Ecologie des Hydrosystèmes Naturels et Anthropisés > > >]
Blackwell Publishing
Yes (verified by ORBi)
[en] 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
[en] 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 pathways that contribute to the diversification of movement strategies in the wild.
Freshwater and OCeanic science Unit of reSearch - FOCUS
Fonds de la Recherche Scientifique (Communauté française de Belgique) - F.R.S.-FNRS ; Service Public de Wallonie : Direction générale opérationnelle de l'agriculture, des ressources naturelles et de l'environnement - DG03
Researchers ; Professionals ; Students
The paginated published version of this paper is also available on Wiley Online Library (see DOI link). The author version is available in open access hereunder.

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