Considering reefscape configuration and composition in biophysical models advance seascape genetics
|Author(s)||Van Wynsberge Simon1, 2, Andrefouet Serge2, Gaertner-Mazouni Nabila1, Tiavouane Josina2, Grulois Daphne2, Lefevre Jerome3, 4, Pinsky Malin L.5, 6, Fauvelot Cecile2|
|Affiliation(s)||1 : Univ Polynesie Francaise, UMR EIO 241, Lab Excellence CORAIL, Faaa, French Polynesi, Fr Polynesia.
2 : Univ La Reunion, UMR ENTROPIE 9220, CNRS, Lab Excellence CORAIL,Ctr IRD Noumea,Inst Rech De, Noumea, New Caledonia.
3 : Ctr IRD Noumea, UMR LEGOS 065, Noumea, New Caledonia.
4 : Ctr IRD Noumea, UMR MIO 235, Noumea, New Caledonia.
5 : Rutgers State Univ, Dept Ecol Evolut & Nat Resources, New Brunswick, NJ USA.
6 : Rutgers State Univ, Inst Earth Ocean & Atmospher Sci, New Brunswick, NJ USA.
|Source||Plos One (1932-6203) (Public Library Science), 2017-05 , Vol. 12 , N. 5 , P. e0178239 (1-23)|
|WOS© Times Cited||13|
Previous seascape genetics studies have emphasized the role of ocean currents and geographic distances to explain the genetic structure of marine species, but the role of benthic habitat has been more rarely considered. Here, we compared the population genetic structure observed in West Pacific giant clam populations against model simulations that accounted habitat composition and configuration, geographical distance, and oceanic currents. Dispersal determined by geographical distance provided a modelled genetic structure in better agreement with the observations than dispersal by oceanic currents, possibly due to insufficient spatial resolution of available oceanographic and coastal circulation models. Considering both habitat composition and configuration significantly improved the match between simulated and observed genetic structures. This study emphasizes the importance of a reefscape genetics approach to population ecology, evolution and conservation in the sea.