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| Ledoux, Jean-baptiste; Aurelle, Didier; Bensoussan, Nathaniel; Marschal, Christian; Feral, Jean-pierre; Garrabou, Joaquim. |
| Studying population-by-environment interactions (PEIs) at species range margins offers the opportunity to characterize the responses of populations facing an extreme regime of selection, as expected due to global change. Nevertheless, the importance of these marginal populations as putative reservoirs of adaptive genetic variation has scarcely been considered in conservation biology. This is particularly true in marine ecosystems for which the deep refugia hypothesis proposes that disturbed shallow and marginal populations of a given species can be replenished by mesophotic ones. This hypothesis therefore assumes that identical PEIs exist between populations, neglecting the potential for adaptation at species range margins. Here, we combine reciprocal... |
| Tipo: Text |
Palavras-chave: Common garden; Corallium rubrum; Deeprefugia hypothesis; Marginal populations; Phenotypic buffering; Potential for local adaptation; Reciprocal transplants. |
| Ano: 2015 |
URL: https://archimer.ifremer.fr/doc/00371/48265/48596.pdf |
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| Boavida, Joana; Paulo, Diogo; Aurelle, Didier; Arnaud-haond, Sophie; Marschal, Christian; Reed, John; Goncalves, Jorge M. S.; Serrao, Ester A.. |
| Background The highly valuable red coral Corallium rubrum is listed in several Mediterranean Conventions for species protection and management since the 1980s. Yet, the lack of data about its Atlantic distribution has hindered its protection there. This culminated in the recent discovery of poaching activities harvesting tens of kg of coral per day from deep rocky reefs off SW Portugal. Red coral was irregularly exploited in Portugal between the 1200s and 1700s, until the fishery collapsed. Its occurrence has not been reported for the last 300 years. Results Here we provide the first description of an Atlantic red coral assemblage, recently rediscovered dwelling at 60-100 m depth in southern Portugal. We report a very slow growth rate (0.23 mm year-1),... |
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| Ano: 2016 |
URL: https://archimer.ifremer.fr/doc/00314/42498/41877.pdf |
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