When species don't move together: Non-concurrent range shifts in Eastern Pacific kelp forest communities.

Autor: Cortese MR; Department of Biology, Temple University, Philadelphia, Pennsylvania, United States of America., Freestone AL; Department of Biology, Temple University, Philadelphia, Pennsylvania, United States of America.
Jazyk: angličtina
Zdroj: PloS one [PLoS One] 2024 May 24; Vol. 19 (5), pp. e0303536. Date of Electronic Publication: 2024 May 24 (Print Publication: 2024).
DOI: 10.1371/journal.pone.0303536
Abstrakt: Species range shifts due to changing ocean conditions are occurring around the world. As species move, they build new interaction networks as they shift from or into new ecological communities. Typically, species ranges are modeled individually, but biotic interactions have been shown to be important to creating more realistic modeling outputs for species. To understand the importance of consumer interactions in Eastern Pacific kelp forest species distributions, we used a Maxent framework to model a key foundation species, giant kelp (Macrocystis pyrifera), and a dominant herbivore, purple sea urchins (Strongylocentrotus purpuratus). With neither species having previously been modeled in the Eastern Pacific, we found evidence for M. pyrifera expansion in the northern section of its range, with no projected contraction at the southern range edge. Despite its known co-occurrence with M. pyrifera, models of S. purpuratus showed a non-concurrent southern range contraction and a co-occurring northern range expansion. While the co-occurring shifts may lead to increased spatial competition for suitable substrate, this non-concurrent contraction could result in community wide impacts such as herbivore release, tropicalization, or ecosystem restructuring.
Competing Interests: The authors have declared that no competing interests exist.
(Copyright: © 2024 Cortese, Freestone. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.)
Databáze: MEDLINE
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