FN Archimer Export Format
PT J
TI Fish communities diverge in species but converge in traits over three decades of warming
BT 
AF McLean, Matthew
   Mouillot, David
   Lindegren, Martin
   Villéger, Sébastien
   Engelhard, Georg
   Murgier, Juliette
   Auber, Arnaud
AS 1:1,2;2:2,3;3:4;4:2;5:5,6;6:1;7:1;
FF 1:;2:;3:;4:;5:;6:;7:PDG-RBE-HMMN-LRHBL;
C1 Unité Halieutique de Manche et mer du Nord IFREMER Boulogne‐sur‐Mer, France
   MARBEC, Université de Montpellier, CNRS, IFREMER, IRD Montpellier Cedex, France
   Australian Research Council Centre of Excellence for Coral Reef Studies James Cook University Townsville Qld ,Australia
   Centre for Ocean Life National Institute of Aquatic Resources, Technical University of Denmark Lyngby ,Denmark
   Centre for Environment, Fisheries & Aquaculture Science (Cefas) Lowestoft ,UK
   Collaborative Centre for Sustainable Use of the Seas (CCSUS) University of East Anglia Norwich ,UK
C2 IFREMER, FRANCE
   IRD, FRANCE
   UNIV JAMES COOK, AUSTRALIA
   UNIV TECH DENMARK (DTU AQUA), DENMARK
   CEFAS, UK
   UNIV E ANGLIA, UK
SI BOULOGNE
SE PDG-RBE-HMMN-LRHBL
UM MARBEC
IN WOS Ifremer UPR
   WOS Cotutelle UMR
   copubli-france
   copubli-p187
   copubli-europe
   copubli-int-hors-europe
IF 8.555
TC 36
UR https://archimer.ifremer.fr/doc/00513/62445/86641.pdf
LA English
DT Article
CR INTERNATIONAL BOTTOM TRAWL SURVEY (IBTS)
DE ;biotic homogenization;climate change;community ecology;ecological traits;ecosystem functioning;fisheries;functional diversity;spatio-temporal dynamics
AB Describing the spatial and temporal dynamics of communities is essential for understanding the impacts of global environmental change on biodiversity and ecosystem functioning. Trait‐based approaches can provide better insight than species‐based (i.e. taxonomic) approaches into community assembly and ecosystem functioning, but comparing species and trait dynamics may reveal important patterns for understanding community responses to environmental change. Here, we used a 33‐year database of fish monitoring to compare the spatio‐temporal dynamics of taxonomic and trait structure in North Sea fish communities. We found that the majority of variation in both taxonomic and trait structure was explained by a pronounced spatial gradient, with distinct communities in the southern and northern North Sea related to depth, sea surface temperature, salinity and bed shear stress. Both taxonomic and trait structure changed significantly over time; however taxonomically, communities in the south and north diverged towards different species, becoming more dissimilar over time, yet they converged towards the same traits regardless of species differences. In particular, communities shifted towards smaller, faster growing species with higher thermal preferences and pelagic water column position. Although taxonomic structure changed over time, its spatial distribution remained relatively stable, whereas in trait structure, the southern zone of the North Sea shifted northward and expanded, leading to homogenization. Our findings suggest that global environmental change, notably climate warming, will lead to convergence towards traits more adapted for novel environments regardless of species composition. 
PY 2019
PD NOV
SO Global Change Biology
SN 1354-1013
PU Wiley
VL 25
IS 11
UT 000482780600001
BP 3972
EP 3984
DI 10.1111/gcb.14785
ID 62445
ER

EF