Naujokaitis-Lewis20161201

Référence

Naujokaitis-Lewis, I., Fortin, M.-J. (2016) Spatio-temporal variation of biotic factors underpins contemporary range dynamics of congeners. Global Change Biology, 22(3):1201-1213. (Scopus )

Résumé

Species' ranges are complex often exhibiting multidirectional shifts over space and time. Despite the strong fingerprint of recent historical climate change on species' distributions, biotic factors such as loss of vegetative habitat and the presence of potential competitors constitute important yet often overlooked drivers of range dynamics. Furthermore, short-term changes in environmental conditions can influence the underlying processes of local extinction and local colonization that drive range shifts, yet are rarely considered at broad scales. We used dynamic state-space occupancy models to test multiple hypotheses of the relative importance of major drivers of range shifts of Golden-winged Warblers (Vermivora chrysoptera) and Blue-winged Warblers (V. cyanoptera) between 1983 and 2012 across North America: warming temperatures; habitat changes; and occurrence of congeneric species, used here as proxy for biotic interactions. Dynamic occupancies for both species were most influenced by spatial relative to temporal variation in temperature and habitat. However, temporal variation in temperature anomalies and biotic interactions remained important. The two biotic factors considered, habitat change and biotic interactions, had the largest relative effect on estimated extinction rates followed by abiotic temperature anomalies. For the Golden-winged Warbler, the predicted presence of the Blue-winged Warbler, a hypothesized competitor, most influenced extinction probabilities, contributing to evidence supporting its role in site-level species replacement. Given the overall importance of biotic factors on range-wide dynamic occupancies, their consideration alongside abiotic factors should not be overlooked. Our results suggest that warming compounds the negative effect of habitat loss emphasizing species' need for habitat to adapt to a changing climate. Notably, even closely related species exhibited individual responses to abiotic and biotic factors considered. © 2016 John Wiley & Sons Ltd.

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@ARTICLE { Naujokaitis-Lewis20161201,
    AUTHOR = { Naujokaitis-Lewis, I. and Fortin, M.-J. },
    TITLE = { Spatio-temporal variation of biotic factors underpins contemporary range dynamics of congeners },
    JOURNAL = { Global Change Biology },
    YEAR = { 2016 },
    VOLUME = { 22 },
    NUMBER = { 3 },
    PAGES = { 1201-1213 },
    NOTE = { cited By 1 },
    ABSTRACT = { Species' ranges are complex often exhibiting multidirectional shifts over space and time. Despite the strong fingerprint of recent historical climate change on species' distributions, biotic factors such as loss of vegetative habitat and the presence of potential competitors constitute important yet often overlooked drivers of range dynamics. Furthermore, short-term changes in environmental conditions can influence the underlying processes of local extinction and local colonization that drive range shifts, yet are rarely considered at broad scales. We used dynamic state-space occupancy models to test multiple hypotheses of the relative importance of major drivers of range shifts of Golden-winged Warblers (Vermivora chrysoptera) and Blue-winged Warblers (V. cyanoptera) between 1983 and 2012 across North America: warming temperatures; habitat changes; and occurrence of congeneric species, used here as proxy for biotic interactions. Dynamic occupancies for both species were most influenced by spatial relative to temporal variation in temperature and habitat. However, temporal variation in temperature anomalies and biotic interactions remained important. The two biotic factors considered, habitat change and biotic interactions, had the largest relative effect on estimated extinction rates followed by abiotic temperature anomalies. For the Golden-winged Warbler, the predicted presence of the Blue-winged Warbler, a hypothesized competitor, most influenced extinction probabilities, contributing to evidence supporting its role in site-level species replacement. Given the overall importance of biotic factors on range-wide dynamic occupancies, their consideration alongside abiotic factors should not be overlooked. Our results suggest that warming compounds the negative effect of habitat loss emphasizing species' need for habitat to adapt to a changing climate. Notably, even closely related species exhibited individual responses to abiotic and biotic factors considered. © 2016 John Wiley & Sons Ltd. },
    AFFILIATION = { Department of Ecology and Evolutionary Biology, University of Toronto, 25 Harbord St., Toronto, ON, Canada; National Wildlife Research Centre, Environment Canada, Carleton University, 1125 Colonel By Drive, Ottawa, ON, Canada },
    AUTHOR_KEYWORDS = { Climate change; Demographic processes; Dynamic occupancy; Habitat loss; Range shift; Spatio-temporal variation; Species distribution models; Vermivora species },
    DOCUMENT_TYPE = { Article },
    DOI = { 10.1111/gcb.13145 },
    SOURCE = { Scopus },
    URL = { https://www.scopus.com/inward/record.uri?eid=2-s2.0-84959522450&doi=10.1111%2fgcb.13145&partnerID=40&md5=25f18e768cd0a432820c388647800f01 },
}

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