FN Archimer Export Format
PT J
TI Multi-scale interaction processes modulate the population response of a benthic species to global warming
BT 
AF THOMAS, Yoann
   Rakoto Razafimahefa, Ntsoa
   Ménesguen, Alain
   Bacher, Cedric
AS 1:1;2:2;3:2;4:2;
FF 1:;2:;3:PDG-ODE-DYNECO-LEBCO;4:PDG-ODE-DYNECO;
C1 Univ Brest, CNRS, IRD, Ifremer, LEMAR, F-29280 Plouzané, France
   Ifremer, DYNECO, Centre Ifremer de Brest, 29280 Plouzané, France
C2 UBO, FRANCE
   IFREMER, FRANCE
SI BREST
SE PDG-ODE-DYNECO-LEBCO
   PDG-ODE-DYNECO
UM LEMAR
IN WOS Ifremer UPR
   WOS Cotutelle UMR
   copubli-france
   copubli-univ-france
IF 2.974
TC 6
UR https://archimer.ifremer.fr/doc/00652/76392/77492.pdf
LA English
DT Article
DE ;Individual-based modelling;Climate scenario;Connectivity;Dynamic Energy Budget;Mussel;Habitat;Biogeography;ODD
AB Marine organisms are currently experiencing an unprecedented rate of climatic warming, which affects their biogeography and threatens marine ecosystem integrity. To understand how benthic species will respond to ongoing seawater warming, we assessed the relative importance of processes acting at different scales using an individual-based modelling approach. Our model integrates: (1) at the individual scale, interactions between the environment, metabolism and ontogenic transitions; (2) at the habitat scale, competition for space at settlement and mortality; and (3) at the regional scale, larval dispersal and connectivity between habitats. We focused on a coastal area in the North-East Atlantic that has experienced a significant seawater warming trend over recent decades. We built and ran a population dynamics model for the blue mussel (Mytilus edulis) in this area, which is a known biogeographic boundary zone. We then compared the response for a reference scenario and a RCP8.5 temperature projection for 2100. We found that (1) increase in seawater temperature would result in a decrease in average biomass associated with a change in recruitment phenology; (2) response to seawater warming is not spatially homogeneous, showing the importance of processes at the habitat scale; (3) connectivity clearly limits the consequences of warming compared with other regulation processes; and (4) larval supply does not seem to be a limiting factor regulating population biomass. The use of such generic models would therefore be very valuable for guiding and optimizing research efforts and supporting the implementation of management and conservation measures. 
PY 2020
PD NOV
SO Ecological Modelling
SN 0304-3800
PU Elsevier BV
VL 436
UT 000579482500011
DI 10.1016/j.ecolmodel.2020.109295
ID 76392
ER

EF