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Elements of fish metacommunity structure in Neotropical freshwater streams
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  • Thiago Bernardi Vieira,
  • Leandro Brasil,
  • Liriann Chrisley Da Silva,
  • Francisco Leonardo Garro,
  • Pedro Aquino,
  • Paulo Pompeu,
  • Paulo De Marco
Thiago Bernardi Vieira
Universidade Federal do Pará - Campus Altamira
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Leandro Brasil
Universidade Federal do Pará
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Liriann Chrisley Da Silva
Universidade Federal do Pará - Campus Altamira
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Francisco Leonardo Garro
Pontifícia Universidade Católica de Goiás
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Pedro Aquino
Universidade de Brasília
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Paulo Pompeu
Universidade Federal de Lavras
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Paulo De Marco
Universidade Federal de Goias
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Abstract

The identification of the mechanisms underlying co-occurrence patterns of species is a way to identify which processes (niche, neutral or both) structure metacommunities. In this paper, our goals are to identify patterns of co-occurrence in neotropical stream fish and determine which processes structure the metacommunity and the gradients that underlie this structure. Our results pointed out that the metacommunity formed by the total pool of species is structured by a nested pattern (Hyperdispersed Species Loss) of co-occurrence and the mass effect mechanism. On the other hand, a set of core species displays a Clementisian pattern and is structured by the species sorting mechanism. Both, hyperdispersed species loss and the Clementisian patterns point to a discrete set of communities in the metacommunity. These communities could be isolated by physicochemical conditions, or physical barriers, like dams or waterfalls.

Peer review status:ACCEPTED

19 Feb 2020Submitted to Ecology and Evolution
29 Feb 2020Submission Checks Completed
29 Feb 2020Assigned to Editor
02 Mar 2020Reviewer(s) Assigned
28 May 2020Review(s) Completed, Editorial Evaluation Pending
29 May 2020Editorial Decision: Revise Minor
08 Jul 20201st Revision Received
09 Jul 2020Submission Checks Completed
09 Jul 2020Assigned to Editor
09 Jul 2020Review(s) Completed, Editorial Evaluation Pending
17 Jul 2020Reviewer(s) Assigned
03 Aug 2020Editorial Decision: Revise Minor
18 Aug 20202nd Revision Received
18 Aug 2020Submission Checks Completed
18 Aug 2020Assigned to Editor
18 Aug 2020Review(s) Completed, Editorial Evaluation Pending
19 Aug 2020Editorial Decision: Accept