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Études méthodologiques développées à l'échelle nationale. Livrable 1 – Confiance et précision pour l'indicateur M-AMBI ArchiMer
Brun, Mélanie.
The index used by France to assess the quality of coastal water bodies of the Water Framework Directive (WFD), for the Channel-Atlantic coast and for the quality element "soft substratum benthic invertebrates" is the M-AMBI. In their work, Sigovini et al. (2013) compare several methods of calculating M-AMBI and alternative indices with the values of M-AMBI. Their results show strong correlations between the values of the M-AMBI and those of the proposed alternatives. In a first step, the present work aims to compare M-AMBI values, obtained during the application of the assessment procedure of the quality of coastal water bodies for the Channel-Atlantic coast on the 2007 and 2010 data, with the values obtained for various alternative calculations and...
Tipo: Text Palavras-chave: M-AMBI; Richesse; Indice de Shannon-Weaver; AMBI; Analyse factorielle; Directive Cadre sur l’Eau; Contrôles de surveillance 2007 et 2010; Standardisation; Bootstrap; Invertébrés benthiques; Manche-Atlantique; M-AMBI; Richness; Shannon-Weaver index; AMBI; Factor analysis; Water Framework Directive; Monitoring 2007 and 2010; Standardization; Bootstrap; Benthic invertebrates; Channel-Atlantic coast.
Ano: 2016 URL: http://archimer.ifremer.fr/doc/00333/44394/44025.pdf
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Comparative study of moss diversity in South Shetland Islands and in the Antarctic Peninsula RChHN
Putzke,Jair; Athanásio,Camila G; Albuquerque,Margéli Pereira de; Victoria,Filipe C; Pereira,Antonio B.
BACKGROUND: This paper presents a comparative study of moss diversity in three collection sites in the South Shetland Islands (King George, Elephant, and Nelson Islands) and one in the Antarctic Continent (Hope Bay, Antarctic Peninsula). In the King George, Elephant, and Nelson Islands, the collections were done in ice-free areas during the austral summers of years 1988,1989, 1990, 1991, 1992, and 1994. In Hope Bay, the collections were done in the 2009 summer (February). All collections were deposited in the HCB (Chaves Batista Herbarium). FINDINGS: The King George Area is the most diverse area and the Hope Bay has the lowest diversity stats. The diversity stats for each region and the similarities between both are presented. CONCLUSION: This results...
Tipo: Journal article Palavras-chave: Bryophyta; Flora; Ice-free area; Shannon-Weaver index.
Ano: 2015 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-078X2015000100006
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