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	Provedor de dados 118 (1) 5 (1) Autor Bertrand, Jacques (1) Bonacic,Cristian (1) Brind'Amour, Anik (1) Gómez,Miguel (1) Lorance, Pascal (1) Miranda,Marcelo (1) Rochet, Marie-joelle (1) Sanhueza,Doris (1) Trenkel, Verena (1) Mais... Palavra-chave Human pressure (2) Altitudinal gradients (1) Andean wetlands ecosystems (1) Atlantic Ocean (1) Ecosystem based management (1) Inventory (1) Reference state (1) Species richness (1) Vegetal diversity (1) Mais... Tipo do documento Journal article (1) Text (1) Ano 2009 (2) País Chile (1) France (1) Idioma Inglês (2)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 2 Primeira ... 1 ... Última Assessment of impacts from human activities on ecosystem components in the Bay of Biscay in the early 1990s 5 Lorance, Pascal; Bertrand, Jacques; Brind'Amour, Anik; Rochet, Marie-joelle; Trenkel, Verena. The ecosystem-based approach to fisheries management and, more specifically, the European Marine Strategy Framework Directive require the assessment of the state and dynamics of an ecosystem in order to determine suitable management strategies. This paper takes an analytical approach to assess the state of the Bay of Biscay ecosystem in the early 1990s, chosen as a period of reference because key monitoring data series have been collected since then. To assess the state of the ecosystem, the pressures exerted by six broad categories of human activities were examined. A literature review of the ecosystem components was made and a component tree was tailored according to data availability. Data rich components were subdivided into subcomponents for their... Tipo: Text Palavras-chave: Reference state; Ecosystem based management; Human pressure; Inventory; Atlantic Ocean. Ano: 2009 URL: http://archimer.ifremer.fr/doc/00000/11164/7520.pdf Species richness, diversity and human activities in an elevation gradient of a high-ecosystem in Lagunas Huascoaltinas, Atacama Region, Chile 118 Sanhueza,Doris; Miranda,Marcelo; Gómez,Miguel; Bonacic,Cristian. The relationship between species richness, diversity and grazing frequency along an altitudinal gradient (1900-3400 m) of an Andean ecosystem indicates that there is an intense human pressure on vegetation use. To identify the vascular flora and its conservation, 20 sites were sampled in two visits during 2006. We identified 79 taxa, including 62.03% native species, 22.78% adventitious and 8.86% endemic (the remaining 6.33% was identified only at the genus level). Some genera were underrepresented. We also observed latitudinal limits (Alstremeria andina), monotypic genera (Geoffroea, Kurzamra, Phragmites, Tessaria and Salix) and monogeneric families (Buddlejaceae, Ephedraceae, Equisetaceae, Malesherbiaceae, Salicaceae and Oxalidaceae). Moreover, we found... Tipo: Journal article Palavras-chave: Altitudinal gradients; Species richness; Vegetal diversity; Human pressure; Andean wetlands ecosystems. Ano: 2009 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-16202009000300008 Registros recuperados: 2 Primeira ... 1 ... Última

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