Benthic species of the Kerguelen Plateau show contrasting distribution shifts in response to environmental changes

Type Article
Date 2018-06
Language English
Author(s) Guillaumot Charlene1, Fabri-Ruiz SalomeORCID2, Martin Alexis3, Eleaume Marc4, Danis BrunoORCID1, Feral Jean-Pierre5, Saucede Thomas2
Affiliation(s) 1 : Marine Biology Lab, CP160/15 Université Libre de Bruxelles (ULB), Brussels, Belgium
2 : UMR CNRS 6282 Biogéosciences, Université de Bourgogne Franche-Comté (UBFC), Dijon, France
3 : Département Adaptation du Vivant, Museum National d’Histoire Naturelle, UMR BOREA 7208, Paris, France
4 : Département Origine et Évolution, Museum National d’Histoire Naturelle, UMR ISYEB 7205, Paris, France
5 : Aix Marseille Université, CNRS, UMR 7263 IMBE, Marseille, France
Source Ecology And Evolution (2045-7758) (Wiley), 2018-06 , Vol. 8 , N. 12 , P. 6210-6225
DOI 10.1002/ece3.4091
WOS© Times Cited 19
Keyword(s) conservation, echinoid, future predictions, historical changes, Kerguelen Plateau, species distribution modeling

Marine life of the Southern Ocean has been facing environmental changes and the direct impact of human activities during the past decades. Benthic communities have particularly been affected by such changes although we only slowly understand the effect of environmental changes on species physiology, biogeography, and distribution. Species distribution models (SDM) can help explore species geographic responses to main environmental changes. In this work, we modeled the distribution of four echinoid species with contrasting ecological niches. Models developed for [2005-2012] were projected to different time periods, and the magnitude of distribution range shifts was assessed for recent-past conditions [1955-1974] and for the future, under scenario RCP 8.5 for [2050-2099]. Our results suggest that species distribution shifts are expected to be more important in a near future compared to the past. The geographic response of species may vary between poleward shift, latitudinal reduction, and local extinction. Species with broad ecological niches and not limited by biogeographic barriers would be the least affected by environmental changes, in contrast to endemic species, restricted to coastal areas, which are predicted to be more sensitive.

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Guillaumot Charlene, Fabri-Ruiz Salome, Martin Alexis, Eleaume Marc, Danis Bruno, Feral Jean-Pierre, Saucede Thomas (2018). Benthic species of the Kerguelen Plateau show contrasting distribution shifts in response to environmental changes. Ecology And Evolution, 8(12), 6210-6225. Publisher's official version : , Open Access version :