LagrangeGimenezDoligezEtAl2017

Référence

Lagrange, P., Gimenez, O., Doligez, B., Pradel, R., Garant, D., Pelletier, F. and Belisle, M. (2017) Assessment of individual and conspecific reproductive success as determinants of breeding dispersal of female tree swallows: A capture–recapture approach. Ecology and Evolution, 7(18):7334-7346. (Scopus )

Résumé

Breeding dispersal is a key process of population structure and dynamics and is often triggered by an individual's breeding failure. In both colonial and territorial birds, reproductive success of conspecifics (RSc) can also lead individuals to change breeding sites after a failure on a site. Yet, few studies have simultaneously investigated the independent contribution of individual reproductive success (RSi) and of RSc on dispersal decision. Here, we develop a modeling framework to disentangle the effects of RSi and RSc on demographic parameters, while accounting for imperfect individual detection and other confounding factors such as age or dispersal behavior in the previous year. Using a 10-year capture–recapture dataset composed of 1,595 banded tree swallows, we assessed the effects of nonmanipulated RSi and RSc on female breeding dispersal in this semicolonial passerine. Dispersal was strongly driven by RSi, but not by RSc. Unsuccessful females were 9.5–2.5 times more likely to disperse than successful ones, depending if they had dispersed or not in the previous year, respectively. Unsuccessful females were also three times less likely to be detected than successful ones. Contrary to theoretical and empirical studies, RSc did not drive the decision to disperse but influenced the selection of the following breeding site once dispersal had been initiated. Because detection of individuals was driven by RSi, which was positively correlated to RSc, assuming a perfect detection as in previous studies may have lead us to conclude that RSc affected dispersal patterns, yet our approach corrected for this bias. Overall, our results suggest that the value and use of RSc as public information to guide dispersal decisions are likely dictated by multiple ecological determinants, such as landscape structure and extent, if this cue is indeed used. © 2017 The Authors. Ecology and Evolution published by John Wiley & Sons Ltd.

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@ARTICLE { LagrangeGimenezDoligezEtAl2017,
    AUTHOR = { Lagrange, P. and Gimenez, O. and Doligez, B. and Pradel, R. and Garant, D. and Pelletier, F. and Belisle, M. },
    TITLE = { Assessment of individual and conspecific reproductive success as determinants of breeding dispersal of female tree swallows: A capture–recapture approach },
    JOURNAL = { Ecology and Evolution },
    YEAR = { 2017 },
    VOLUME = { 7 },
    NUMBER = { 18 },
    PAGES = { 7334-7346 },
    NOTE = { cited By 0 },
    ABSTRACT = { Breeding dispersal is a key process of population structure and dynamics and is often triggered by an individual's breeding failure. In both colonial and territorial birds, reproductive success of conspecifics (RSc) can also lead individuals to change breeding sites after a failure on a site. Yet, few studies have simultaneously investigated the independent contribution of individual reproductive success (RSi) and of RSc on dispersal decision. Here, we develop a modeling framework to disentangle the effects of RSi and RSc on demographic parameters, while accounting for imperfect individual detection and other confounding factors such as age or dispersal behavior in the previous year. Using a 10-year capture–recapture dataset composed of 1,595 banded tree swallows, we assessed the effects of nonmanipulated RSi and RSc on female breeding dispersal in this semicolonial passerine. Dispersal was strongly driven by RSi, but not by RSc. Unsuccessful females were 9.5–2.5 times more likely to disperse than successful ones, depending if they had dispersed or not in the previous year, respectively. Unsuccessful females were also three times less likely to be detected than successful ones. Contrary to theoretical and empirical studies, RSc did not drive the decision to disperse but influenced the selection of the following breeding site once dispersal had been initiated. Because detection of individuals was driven by RSi, which was positively correlated to RSc, assuming a perfect detection as in previous studies may have lead us to conclude that RSc affected dispersal patterns, yet our approach corrected for this bias. Overall, our results suggest that the value and use of RSc as public information to guide dispersal decisions are likely dictated by multiple ecological determinants, such as landscape structure and extent, if this cue is indeed used. © 2017 The Authors. Ecology and Evolution published by John Wiley & Sons Ltd. },
    AFFILIATION = { Département de Biologie, Université de Sherbrooke, Sherbrooke, QC, Canada; CEFE UMR 5175, CNRS - Université de Montpellier, Université Paul-Valéry Montpellier - EPHE, Montpellier Cedex 5, France; Laboratoire de Biométrie et Biologie Evolutive - CNRS, UMR 5558, Université de Lyon 1, Villeurbanne, France },
    AUTHOR_KEYWORDS = { capture–recapture data; dispersal; multievent model; reproductive success; social information; tree swallow },
    DOCUMENT_TYPE = { Article },
    DOI = { 10.1002/ece3.3241 },
    SOURCE = { Scopus },
    URL = { https://www.scopus.com/inward/record.uri?eid=2-s2.0-85029615604&doi=10.1002%2fece3.3241&partnerID=40&md5=e08015616ce43620f770b46f291c4103 },
}

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