Regional and local environmental conditions do not shape the response to warming of a marine habitat-forming species
dc.contributor.author
dc.date.accessioned
2017-07-28T09:50:13Z
dc.date.available
2017-07-28T09:50:13Z
dc.date.issued
2017-07-11
dc.identifier.issn
2045-2322
dc.identifier.uri
dc.description.abstract
The differential response of marine populations to climate change remains poorly understood. Here,
we combine common garden thermotolerance experiments in aquaria and population genetics to
disentangle the factors driving the population response to thermal stress in a temperate habitatforming
species: the octocoral Paramuricea clavata. Using eight populations separated from tens of
meters to hundreds of kilometers, which were differentially impacted by recent mortality events,
we identify 25 °C as a critical thermal threshold. After one week of exposure at this temperature,
seven of the eight populations were affected by tissue necrosis and after 30 days of exposure at this
temperature, the mean % of affected colonies increased gradually from 3 to 97%. We then demonstrate
the weak relation between the observed differential phenotypic responses and the local temperature
regimes experienced by each population. A significant correlation was observed between these
responses and the extent of genetic drift impacting each population. Local adaptation may thus be
hindered by genetic drift, which seems to be the main driver of the differential response. Accordingly,
conservation measures should promote connectivity and control density erosion in order to limit the
impact of genetic drift on marine populations facing climate change
dc.description.sponsorship
The authors gratefully acknowledge the funding support given by the Alan Program (CC Doctoral Fellowship),
by CSIC-Uruguay (Call Programa de pasantías en el exterior 2015) and by the Portuguese Foundation for Science
and Technology (Fundação para a Ciència e a Tecnologia; FCT) which funded JBL Postdoctoral grant (SFRH/
BPD/74400/2010). Authors are also grateful to the MEDCHANGE project funded by the Agence Nationale pour
la Recherche (ANR) and to the Spanish Ministry of Economy and Competitivity (http://www.mineco.gob.es)
through the Biorock (CTM2009-08045), Smart (CGL2012-32194) and CSI-Coral (CGL2013-43106-R). Temperature
data series data is part of the regional temperature observation network T-MEDNet (www.t-mednet.org);
we thank J.M. Dominici for providing the data for the Réserve Naturelle de Scandola. The authors also thank
the staff of Experimental Aquarium Facilities at the Institute of Marine Sciences E. Martinez and M. Delgado
for the technical support provided. EC, JG, CL, PL and NT are part of the Marine Conservation research
group MEDRECOVER www.medrecover.org (2009 SGR 1174) while RC and MR are part of the Marine
Biogeochemistry and Global Change Research group (2014SGR1029) from the Generalitat de Catalunya
dc.format.mimetype
application/pdf
dc.language.iso
eng
dc.publisher
Nature Publishing Group
dc.relation.isformatof
Reproducció digital del document publicat a: https://doi.org/10.1038/s41598-017-05220-4
dc.relation.ispartof
Scientific Reports, núm. 7, art. 5069
dc.relation.ispartofseries
Articles publicats (D-CCAA)
dc.rights
Attribution 3.0 Spain
dc.rights.uri
dc.subject
dc.title
Regional and local environmental conditions do not shape the response to warming of a marine habitat-forming species
dc.type
info:eu-repo/semantics/article
dc.rights.accessRights
info:eu-repo/semantics/openAccess
dc.embargo.terms
Cap
dc.type.version
info:eu-repo/semantics/publishedVersion
dc.identifier.doi
dc.identifier.idgrec
027699