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Body size and trophic position determine the outcomes of species invasions along temperature and productivity gradients
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  • Samuel Dijoux,
  • Noémie Pichon,
  • Arnaud Sentis,
  • David Boukal
Samuel Dijoux
University of South Bohemia in Ceske Budejovice Faculty of Science

Corresponding Author:[email protected]

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Noémie Pichon
University of Oulu Faculty of Science
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Arnaud Sentis
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David Boukal
University of South Bohemia in Ceske Budejovice
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Species invasions are predicted to increase in frequency with global change, but quantitative predictions of how environmental filters and species traits influence the success and consequences of invasions for local communities are lacking. Here we investigate how invaders alter the structure, diversity and stability regime of simple communities across gradients of habitat productivity, temperature, and community size structure. We examine all three-species trophic modules (apparent and exploitative competition, trophic chain and intraguild predation) with empirically derived temperature and body mass scaling of vital rates. We show that the success of an invasion and its effects on community stability and diversity are predictably determined by the effects of environmental factors on each species and the relative strengths of trophic interactions between resident and invading species. We predict that successful invaders include smaller competitors and comparatively small predators, suggesting that species invasions may facilitate the downsizing of food webs under global change.
06 Mar 2023Submitted to Ecology Letters
07 Mar 2023Assigned to Editor
07 Mar 2023Submission Checks Completed
07 Mar 2023Review(s) Completed, Editorial Evaluation Pending
08 Mar 2023Reviewer(s) Assigned
22 Apr 2023Editorial Decision: Revise Major
30 Jun 20231st Revision Received
30 Jun 2023Review(s) Completed, Editorial Evaluation Pending
03 Jul 2023Submission Checks Completed
03 Jul 2023Assigned to Editor
03 Jul 2023Reviewer(s) Assigned
08 Aug 2023Editorial Decision: Revise Minor
29 Aug 20232nd Revision Received
29 Aug 2023Review(s) Completed, Editorial Evaluation Pending
29 Aug 2023Assigned to Editor
29 Aug 2023Submission Checks Completed
29 Aug 2023Reviewer(s) Assigned
13 Sep 2023Editorial Decision: Accept