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Registros recuperados: 6
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Is the Species Flock Concept Operational? The Antarctic Shelf Case ArchiMer
Lecointre, Guillaume; Ameziane, Nadia; Boisselier, Marie-catherine; Bonillo, Celine; Busson, Frederic; Causse, Romain; Chenuil, Anne; Couloux, Arnaud; Coutanceau, Jean-pierre; Cruaud, Corinne; D'Udekem D'Acoz, Cedric; De Ridder, Chantal; Denys, Gael; Dettai, Agnes; Duhamel, Guy; Eleaume, Marc; Feral, Jean-pierre; Gallut, Cyril; Havermans, Charlotte; Held, Christoph; Hemery, Lenaig; Lautredou, Anne-claire; Martin, Patrick; Ozouf-costaz, Catherine; Pierrat, Benjamin; Pruvost, Patrice; Puillandre, Nicolas; Samadi, Sarah; Saucede, Thomas; Schubart, Christoph; David, Bruno.
There has been a significant body of literature on species flock definition but not so much about practical means to appraise them. We here apply the five criteria of Eastman and McCune for detecting species flocks in four taxonomic components of the benthic fauna of the Antarctic shelf: teleost fishes, crinoids (feather stars), echinoids (sea urchins) and crustacean arthropods. Practical limitations led us to prioritize the three historical criteria (endemicity, monophyly, species richness) over the two ecological ones (ecological diversity and habitat dominance). We propose a new protocol which includes an iterative fine-tuning of the monophyly and endemicity criteria in order to discover unsuspected flocks. As a result nine "full" species flocks...
Tipo: Text
Ano: 2013 URL: https://archimer.ifremer.fr/doc/00296/40754/39754.pdf
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CIGESMED for divers: Establishing a citizen science initiative for the mapping and monitoring of coralligenous assemblages in the Mediterranean Sea ArchiMer
Gerovasileiou, Vasilis; Dailianis, Thanos; Panteri, Emmanouela; Michalakis, Nikitas; Gatti, Giulia; Sini, Maria; Dimitriadis, Charalampos; Issaris, Yiannis; Salomidi, Maria; Filiopoulou, Irene; Dogan, Alper; D'Avray, Laure Thierry De Ville; David, Romain; Cinar, Melih Ertan; Koutsoubas, Drosos; Feral, Jean-pierre; Arvanitidis, Christos.
Background Over the last decade, inventorying and monitoring of marine biodiversity has significantly benefited from the active engagement of volunteers. Although several Citizen Science projects concern tropical reef ecosystems worldwide, none of the existing initiatives has yet specifically focused on their Mediterranean equivalents. Mediterranean coralline reefs, known as “coralligenous”, are bioherms primarily built by calcifying rhodophytes on hard substrates under dim-light conditions; they are considered hotspots of biodiversity and are extremely popular among divers due to their complex structure, conspicuous biological wealth and high aesthetic value. Nevertheless, data on their distribution, structure and conservation status is lacking for...
Tipo: Text Palavras-chave: Coralligenous assemblages; Coralligenous outcrops; Coralline reefs; Bioherms; Biodiversity hotspot; Monitoring; Citizen science; SCUBA diving; Mediterranean Sea.
Ano: 2016 URL: https://archimer.ifremer.fr/doc/00375/48596/48945.pdf
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PCR survey of 50 introns in animals: Cross-amplification of homologous EPIC loci in eight non-bilaterian, protostome and deuterostome phyla ArchiMer
Gerard, K.; Guilloton, E.; Arnaud-haond, Sophie; Aurelle, D.; Bastrop, R.; Chevaldonne, P.; Derycke, S.; Hanel, R.; Lapegue, Sylvie; Lejeusne, C.; Mousset, Sylvain; Ramsak, A.; Remerie, T.; Viard, Frederique; Feral, Jean-pierre; Chenuil, A..
Exon Primed Intron Crossing (EPIC) markers providemolecular tools that are susceptible to be variable within specieswhile remaining amplifiable by PCR using potentially universal primers. In this studywe tested the possibility of obtaining PCR products from 50 EPIC markers on 23 species belonging to seven different phyla (Porifera, Cnidaria, Arthropoda, Nematoda, Mollusca, Annelida, Echinodermata) using 70 new primer pairs. A previous study had identified and tested those loci in a dozen species, including another phylum, Urochordata (Chenuil et al., 2010). Results were contrasted among species. The best results were achieved with the oyster (Mollusca) where 28 loci provided amplicons susceptible to contain an intron according to their size. This was...
Tipo: Text Palavras-chave: Universal primers; Alternative barcoding; Non-model species; Genetic marker; Intron.
Ano: 2013 URL: http://archimer.ifremer.fr/doc/00166/27775/25969.pdf
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Role of evolutionary and ecological factors in the reproductive success and the spatial genetic structure of the temperate gorgonian Paramuricea clavata ArchiMer
Mokhtar-jamai, Kenza; Coma, Rafel; Wang, Jinliang; Zuberer, Frederic; Feral, Jean-pierre; Aurelle, Didier.
Dispersal and mating features strongly influence the evolutionary dynamics and the spatial genetic structure (SGS) of marine populations. For the first time in a marine invertebrate, we examined individual reproductive success, by conducting larval paternity assignments after a natural spawning event, combined with a small-scale SGS analysis within a population of the gorgonian Paramuricea clavata. Thirty four percent of the larvae were sired by male colonies surrounding the brooding female colonies, revealing that the bulk of the mating was accomplished by males from outside the studied area. Male success increased with male height and decreased with increasing male to female distance. The parentage analyses, with a strong level of self-recruitment (25%),...
Tipo: Text Palavras-chave: Gamete and larval dispersal; Mating system; Microsatellites; Natural spawning event; Parentage analyses.
Ano: 2013 URL: https://archimer.ifremer.fr/doc/00372/48281/48502.pdf
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Potential for adaptive evolution at species range margins: contrasting interactions between red coral populations and their environment in a changing ocean ArchiMer
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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Molecular and morphological evidence of Alvinellidae relationships (Terebelliformia, Polychaeta, Annelida) ArchiMer
Rousset, Vincent; Rouse, Greg; Feral, Jean-pierre; Desbruyeres, Daniel; Pleijel, Fredrik.
In this study we assessed the phylogenetic relationships of the hydrothermal vent polychaete group Alvinellidae, based on parsimony analyses of combined morphological and molecular data. Morphological data were obtained from newly examined specimens and literature information of 16 terminal taxa belonging to Alvinellidae, Ampharetidae, Pectinariidae, Terebellidae, Trichobranchidae, and the outgroups Oweniidae and Sabellidae. Molecular data were based on 28S rRNA from 13 of the 16 morphological terminals (10 previously published sequences plus three new ones). The combined analysis indicated the clades ((Alvinellidae, Trichobranchidae) Pectinariidae) and (Ampharetidae, Terebellidae). Alvinellidae, Ampharetidae and Terebellidae, as currently delineated, are...
Tipo: Text Palavras-chave: Molecular; Alvinellidae; Polychaete; Phylogenetic.
Ano: 2003 URL: http://archimer.ifremer.fr/doc/2003/publication-706.pdf
Registros recuperados: 6
Primeira ... 1 ... Última
 

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