Article (Scientific journals)
Dispersal and alternative breeding site fidelity strategies in an amphibian
Denoël, Mathieu; Dalleur, séverine; Langrand, Estelle et al.
2018In Ecography, 41 (9), p. 1543-1555
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Keywords :
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
Abstract :
[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.
Research center :
FOCUS - Freshwater and OCeanic science Unit of reSearch - ULiège
Disciplines :
Animal psychology, ethology & psychobiology
Aquatic sciences & oceanology
Environmental sciences & ecology
Author, co-author :
Denoël, Mathieu  ;  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
Language :
English
Title :
Dispersal and alternative breeding site fidelity strategies in an amphibian
Publication date :
September 2018
Journal title :
Ecography
ISSN :
0906-7590
eISSN :
1600-0587
Publisher :
Blackwell Publishing, Copenhagen, Denmark
Volume :
41
Issue :
9
Pages :
1543-1555
Peer reviewed :
Peer Reviewed verified by ORBi
Funders :
F.R.S.-FNRS - Fonds de la Recherche Scientifique [BE]
SPW DG03-DGARNE - Service Public de Wallonie. Direction Générale Opérationnelle Agriculture, Ressources naturelles et Environnement [BE]
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since 28 November 2017

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