Watts2015

Référence

Watts, A.G., Schlichting, P.E., Billerman, S.M., Jesmer, B.R., Micheletti, S., Fortin, M.-J., Funk, W.C., Hapeman, P., Muths, E., Murphy, M.A. (2015) How spatio-temporal habitat connectivity affects amphibian genetic structure. Frontiers in Genetics, 6(SEP). (Scopus )

Résumé

Heterogeneous landscapes and fluctuating environmental conditions can affect species dispersal, population genetics, and genetic structure, yet understanding how biotic and abiotic factors affect population dynamics in a fluctuating environment is critical for species management. We evaluated how spatio-temporal habitat connectivity influences dispersal and genetic structure in a population of boreal chorus frogs (Pseudacris maculata) using a landscape genetics approach. We developed gravity models to assess the contribution of various factors to the observed genetic distance as a measure of functional connectivity. We selected (a) wetland (within-site) and (b) landscape matrix (between-site) characteristics; and (c) wetland connectivity metrics using a unique methodology. Specifically, we developed three networks that quantify wetland connectivity based on: (i) P. maculata dispersal ability, (ii) temporal variation in wetland quality, and (iii) contribution of wetland stepping-stones to frog dispersal. We examined 18 wetlands in Colorado, and quantified 12 microsatellite loci from 322 individual frogs. We found that genetic connectivity was related to topographic complexity, within- and between-wetland differences in moisture, and wetland functional connectivity as contributed by stepping-stone wetlands. Our results highlight the role that dynamic environmental factors have on dispersal-limited species and illustrate how complex asynchronous interactions contribute to the structure of spatially-explicit metapopulations. © 2015 Watts, Schlichting, Billerman, Jesmer, Micheletti, Fortin, Funk, Hapeman, Muths and Murphy.

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@ARTICLE { Watts2015,
    AUTHOR = { Watts, A.G. and Schlichting, P.E. and Billerman, S.M. and Jesmer, B.R. and Micheletti, S. and Fortin, M.-J. and Funk, W.C. and Hapeman, P. and Muths, E. and Murphy, M.A. },
    TITLE = { How spatio-temporal habitat connectivity affects amphibian genetic structure },
    JOURNAL = { Frontiers in Genetics },
    YEAR = { 2015 },
    VOLUME = { 6 },
    NUMBER = { SEP },
    NOTE = { cited By 7 },
    ABSTRACT = { Heterogeneous landscapes and fluctuating environmental conditions can affect species dispersal, population genetics, and genetic structure, yet understanding how biotic and abiotic factors affect population dynamics in a fluctuating environment is critical for species management. We evaluated how spatio-temporal habitat connectivity influences dispersal and genetic structure in a population of boreal chorus frogs (Pseudacris maculata) using a landscape genetics approach. We developed gravity models to assess the contribution of various factors to the observed genetic distance as a measure of functional connectivity. We selected (a) wetland (within-site) and (b) landscape matrix (between-site) characteristics; and (c) wetland connectivity metrics using a unique methodology. Specifically, we developed three networks that quantify wetland connectivity based on: (i) P. maculata dispersal ability, (ii) temporal variation in wetland quality, and (iii) contribution of wetland stepping-stones to frog dispersal. We examined 18 wetlands in Colorado, and quantified 12 microsatellite loci from 322 individual frogs. We found that genetic connectivity was related to topographic complexity, within- and between-wetland differences in moisture, and wetland functional connectivity as contributed by stepping-stone wetlands. Our results highlight the role that dynamic environmental factors have on dispersal-limited species and illustrate how complex asynchronous interactions contribute to the structure of spatially-explicit metapopulations. © 2015 Watts, Schlichting, Billerman, Jesmer, Micheletti, Fortin, Funk, Hapeman, Muths and Murphy. },
    AFFILIATION = { Department of Ecology and Evolutionary Biology, University of Toronto, Toronto, ON, Canada; Department of Natural Resources Management, Texas Tech University, Lubbock, TX, United States; Department of Zoology and Physiology, University of Wyoming, Laramie, WY, United States; Program in Ecology, University of Wyoming, Laramie, WY, United States; School of Biological Sciences, Washington State University, Pullman, WA, United States; Graduate Degree Program in Ecology, Department of Biology, Colorado State University, Fort Collins, CO, United States; Department of Biology, Central Connecticut State University, New Britain, CT, United States; Fort Collins Science Center, U.S. Geological Survey, Fort Collins, CO, United States; Department of Ecosystem Science and Management, Program in Ecology, University of Wyoming, 1000 E. University Ave., Laramie, WY, United States },
    ART_NUMBER = { 275 },
    AUTHOR_KEYWORDS = { Boreal chorus frog (Pseudacris maculata); Dispersal; Functional connectivity; Gravity model; Landscape genetics; Metapopulation dynamics; Spatio-temporal dynamics },
    DOCUMENT_TYPE = { Article },
    DOI = { 10.3389/fgene.2015.00275 },
    SOURCE = { Scopus },
    URL = { https://www.scopus.com/inward/record.uri?eid=2-s2.0-84944750636&doi=10.3389%2ffgene.2015.00275&partnerID=40&md5=b0d0246a6aedd0ddcc62af0f08f0fd1a },
}

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