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Ecological barriers mediate spatiotemporal shifts of bird communities at a continental scale.


ABSTRACT: Species' range shifts and local extinctions caused by climate change lead to community composition changes. At large spatial scales, ecological barriers, such as biome boundaries, coastlines, and elevation, can influence a community's ability to shift in response to climate change. Yet, ecological barriers are rarely considered in climate change studies, potentially hindering predictions of biodiversity shifts. We used data from two consecutive European breeding bird atlases to calculate the geographic distance and direction between communities in the 1980s and their compositional best match in the 2010s and modeled their response to barriers. The ecological barriers affected both the distance and direction of bird community composition shifts, with coastlines and elevation having the strongest influence. Our results underscore the relevance of combining ecological barriers and community shift projections for identifying the forces hindering community adjustments under global change. Notably, due to (macro)ecological barriers, communities are not able to track their climatic niches, which may lead to drastic changes, and potential losses, in community compositions in the future.

SUBMITTER: Marjakangas EL 

PROVIDER: S-EPMC10266007 | biostudies-literature | 2023 Jun

REPOSITORIES: biostudies-literature

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Ecological barriers mediate spatiotemporal shifts of bird communities at a continental scale.

Marjakangas Emma-Liina EL   Bosco Laura L   Versluijs Martijn M   Xu Yanjie Y   Santangeli Andrea A   Holopainen Sari S   Mäkeläinen Sanna S   Herrando Sergi S   Keller Verena V   Voříšek Petr P   Brotons Lluís L   Johnston Alison A   Princé Karine K   Willis Stephen G SG   Aghababyan Karen K   Ajder Vitalie V   Balmer Dawn E DE   Bino Taulant T   Boyla Kerem Ali KA   Chodkiewicz Tomasz T   Del Moral Juan Carlos JC   Mazal Vlatka Dumbović VD   Ferrarini Alessandro A   Godinho Carlos C   Gustin Marco M   Kalyakin Mikhail M   Knaus Peter P   Kuzmenko Tatiana T   Lindström Åke Å   Maxhuni Qenan Q   Molina Blas B   Nagy Károly K   Radišić Dimitrije D   Rajkov Saša S   Rajković Draženko Z DZ   Raudoniki Liutauras L   Sjeničić Jovica J   Stoychev Stoycho S   Szép Tibor T   Teufelbauer Norbert N   Ursul Silvia S   van Turnhout Chris A M CAM   Velevski Metodija M   Vikstrøm Thomas T   Wilk Tomasz T   Voltzit Olga O   Øien Ingar Jostein IJ   Sudfeldt Christoph C   Gerlach Bettina B   Lehikoinen Aleksi A  

Proceedings of the National Academy of Sciences of the United States of America 20230530 23


Species' range shifts and local extinctions caused by climate change lead to community composition changes. At large spatial scales, ecological barriers, such as biome boundaries, coastlines, and elevation, can influence a community's ability to shift in response to climate change. Yet, ecological barriers are rarely considered in climate change studies, potentially hindering predictions of biodiversity shifts. We used data from two consecutive European breeding bird atlases to calculate the geo  ...[more]

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