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	Provedor de dados ArchiMer (3) Autor Asmus, H. (1) Asmus, R. (1) Brind'Amour, Anik (1) Carlier, Antoine (1) Claudet, Joachim (1) Crassous, Philippe (1) Galeron, Joelle (1) Gasiunaite, Z. (1) Gremare, Antoine (1) Hummel, H. (1) Kedra, M. (1) Lesutiene, J. (1) Mante, Claude (1) Menot, Lenaick (1) Razinkovas, A. (1) Rebzani Zahaf, C (1) Renaud, Paul (1) Richard, P. (1) Sokolowski, Adam (1) Wolowicz, M. (1) Mais... Palavra-chave Macrobenthic communities (3) Algiers harbour (1) BIOZAIRE (1) Biodiversity (1) Diversity-structure interactions (1) European waters (1) Food web structure (1) Habitat patches (1) Hellinger distance (1) Multiscale analyses (1) Multivariate analyses (1) PCNM (1) Pollution (1) Rare species (1) Selection (1) Spatial distribution (1) Mais... Tipo do documento Text (3) Ano 2012 (1) 2009 (1) 2003 (1) País France (3) Idioma Inglês (3)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 3 Primeira ... 1 ... Última Is benthic food web structure related to diversity of marine macrobenthic communities? ArchiMer Sokolowski, Adam; Wolowicz, M.; Asmus, H.; Asmus, R.; Carlier, Antoine; Gasiunaite, Z.; Gremare, Antoine; Hummel, H.; Lesutiene, J.; Razinkovas, A.; Renaud, Paul; Richard, P.; Kedra, M.. Numerical structure and the organisation of food webs within macrozoobenthic communities has been assessed in the European waters (Svalbard, Barents Sea, Baltic Sea, North Sea, Atlantic Ocean and the Mediterranean Sea) to address the interactions between biodiversity and ecosystem functioning. Abundance and classical species diversity indices (S, H', J) of macrofaunal communities were related to principal attributes of food webs (relative trophic level and food chain length, FCL) that were determined from carbon and nitrogen stable isotope values. Structure of marine macrobenthos varies substantially at a geographical scale; total abundance ranges from 63 ind. m(-2) to 34,517 ind. m(-2), species richness varies from 3 to 166 and the Shannon-Weaver... Tipo: Text Palavras-chave: Macrobenthic communities; Biodiversity; Food web structure; Diversity-structure interactions; European waters. Ano: 2012 URL: http://archimer.ifremer.fr/doc/00093/20378/18214.pdf Spatial organization of a sedimentary macrobenthic community located on the West African Equatorial margin ArchiMer Brind'Amour, Anik; Menot, Lenaick; Galeron, Joelle; Crassous, Philippe. Multiscale variability of a macrobenthic community inhabiting fine sediments on the West African Equatorial margin was assessed during three cruises as part of the BIOZAIRE research program. Spatial scales ranged from 15 to 550 m (within station) and from 1000 to 7000 m (between stations). Principal Coordinates of Neighbour Matrices (PCNM) allowed the detection of multiscale patterns of variability within a location, while a binary coding of the sampling stations was used at broad spatial scales. Significant patterns were observed at 170 and >4000 m. The two spatial scales displayed similar biotic responses, with the Scaphopoda and Bivalvia having patterns that were opposite to the Pholoidae. A spatio-temporal patchwork of environmental variables might... Tipo: Text Palavras-chave: Spatial distribution; PCNM; Multiscale analyses; Macrobenthic communities; Habitat patches; BIOZAIRE. Ano: 2009 URL: http://archimer.ifremer.fr/doc/2009/publication-6508.pdf Fairly processing rare and common species in multivariate analysis of ecological series - Application to macrobenthic communities from Algiers harbour ArchiMer Mante, Claude; Claudet, Joachim; Rebzani Zahaf, C. Systematic sampling of communities gives rise to large contingency tables summing up possible changes in the assemblages' structure. Such tables are generally analysed by multivariate statistical methods, which are ill-suited for simultaneously analysing rare and common species (Field et al., 1982). In order to separately process species belonging to either of these categories, we propose a statistical method to select common species in a sequence of ecological surveys. It is based on a precise definition of rarity, and depends on a rarity parameter. In this work, this parameter will be optimised so that the sub-table of common species captures the essential features of the complete table as well as possible. In this way we analysed the spatio-temporal... Tipo: Text Palavras-chave: Hellinger distance; Pollution; Algiers harbour; Multivariate analyses; Macrobenthic communities; Selection; Rare species. Ano: 2003 URL: https://archimer.ifremer.fr/doc/2003/publication-754.pdf Registros recuperados: 3 Primeira ... 1 ... Última

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