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Article Dans Une Revue Proceedings of the Royal Society B: Biological Sciences Année : 2022

The biogeography of community assembly: latitude and predation drive variation in community trait distribution in a guild of epifaunal crustaceans

Collin Gross
J. Emmett Duffy
Kevin Hovel
Melissa Kardish
Pamela Reynolds
Christoffer Boström
Katharyn Boyer
Mathieu Cusson
Johan Eklöf
Aschwin Engelen
F. Joel Fodrie
John Griffin
Clara Hereu
Masakazu Hori
A. Randall Hughes
  • Fonction : Auteur
Mikhail Ivanov
Pablo Jorgensen
Claudia Kruschel
Kun-Seop Lee
Jonathan Lefcheck
Karen Mcglathery
  • Fonction : Auteur
Per-Olav Moksnes
Masahiro Nakaoka
Mary O'Connor
Nessa O'Connor
Jeanine Olsen
  • Fonction : Auteur
Robert Orth
Bradley Peterson
Henning Reiss
Jennifer Ruesink
Erik Sotka
Jonas Thormar
Fiona Tomas
  • Fonction : Auteur
Richard Unsworth
Erin Voigt
Matthew Whalen
Shelby Ziegler
John Stachowicz

Résumé

While considerable evidence exists of biogeographic patterns in the intensity of species interactions, the influence of these patterns on variation in community structure is less clear. Studying how the distributions of traits in communities vary along global gradients can inform how variation in interactions and other factors contribute to the process of community assembly. Using a model selection approach on measures of trait dispersion in crustaceans associated with eelgrass ( Zostera marina ) spanning 30° of latitude in two oceans, we found that dispersion strongly increased with increasing predation and decreasing latitude. Ocean and epiphyte load appeared as secondary predictors; Pacific communities were more overdispersed while Atlantic communities were more clustered, and increasing epiphytes were associated with increased clustering. By examining how species interactions and environmental filters influence community structure across biogeographic regions, we demonstrate how both latitudinal variation in species interactions and historical contingency shape these responses. Community trait distributions have implications for ecosystem stability and functioning, and integrating large-scale observations of environmental filters, species interactions and traits can help us predict how communities may respond to environmental change.
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hal-03853778 , version 1 (16-11-2022)

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Collin Gross, J. Emmett Duffy, Kevin Hovel, Melissa Kardish, Pamela Reynolds, et al.. The biogeography of community assembly: latitude and predation drive variation in community trait distribution in a guild of epifaunal crustaceans. Proceedings of the Royal Society B: Biological Sciences, 2022, 289 (1969), ⟨10.1098/rspb.2021.1762⟩. ⟨hal-03853778⟩
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