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Population responses of bird populations to climate change on two continents vary with species’ ecological traits but not with direction of change in climate suitability.

Mason, Lucy R. and Green, Rhys E. and Howard, Christine and Stephens, Philip A. and Willis, Stephen G. and Aunins, Ainars and Brotons, Lluís and Chodkiewicz, Tomasz and Chylarecki, Przemysław and Escandell, Virginia and Foppen, Ruud P. B. and Herrando, Sergi and Husby, Magne and Jiguet, Frédéric and Kålås, John Atle and Lindström, Åke and Massimino, Dario and Moshøj, Charlotte and Nellis, Renno and Paquet, Jean-Yves and Reif, Jiří and Sirkiä, Päivi M. and Szép, Tibor and Florenzano, Guido Tellini and Teufelbauer, Norbert and Trautmann, Sven and van Strien, Arco and van Turnhout, Chris A. M. and Voříšek, Petr and Gregory, Richard D. (2019) 'Population responses of bird populations to climate change on two continents vary with species’ ecological traits but not with direction of change in climate suitability.', Climatic change., 157 (3-4). pp. 337-354.

Abstract

Climate change is a major global threat to biodiversity with widespread impacts on ecological communities. Evidence for beneficial impacts on populations is perceived to be stronger and more plentiful than that for negative impacts, but few studies have investigated this apparent disparity, or how ecological factors affect population responses to climatic change. We examined the strength of the relationship between species-specific regional population changes and climate suitability trends (CST), using 30-year datasets of population change for 525 breeding bird species in Europe and the USA. These data indicate a consistent positive relationship between population trend and CST across the two continents. Importantly, we found no evidence that this positive relationship differs between species expected to be negatively and positively impacted across the entire taxonomic group, suggesting that climate change is causing equally strong, quantifiable population increases and declines. Species’ responses to changing climatic suitability varied with ecological traits, however, particularly breeding habitat preference and body mass. Species associated with inland wetlands responded most strongly and consistently to recent climatic change. In Europe, smaller species also appeared to respond more strongly, while the relationship with body mass was less clear-cut for North American birds. Overall, our results identify the role of certain traits in modulating responses to climate change and emphasise the importance of long-term data on abundance for detecting large-scale species’ responses to environmental changes.

Item Type:Article
Full text:Publisher-imposed embargo
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Available under License - Creative Commons Attribution.
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Full text:(VoR) Version of Record
Available under License - Creative Commons Attribution.
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(597Kb)
Status:Peer-reviewed
Publisher Web site:https://doi.org/10.1007/s10584-019-02549-9
Publisher statement:© The Author(s) 2019. This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.
Date accepted:09 September 2019
Date deposited:03 October 2019
Date of first online publication:09 October 2019
Date first made open access:29 October 2019

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