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A reassessment of the phytogeographic characterization of Temperate Pacific South America RChHN
SANTELICES,BERNABE; MENESES,ISABEL.
In 1980, a study of geographic distribution patterns and geographic affinities of benthic algae of temperate Pacific South America (5-55 ºS) provided a first characterization of these coasts. High endemism and limited floristic exchange with the Tropical Pacific and with islands in the South Pacific at various distances from the continent were two outstanding features of the marine flora. A partial blockage of species exchange partially accounted for a peculiar latitudinal pattern of species richness that increases with increasing latitudes. In contrast, there was reduced species richness in comparison with other climatically equivalent regions that have contact with more effective routes of migration. Over the last two decades, more than 30 taxonomic and...
Tipo: Journal article Palavras-chave: Benthic phytogeography; Isolation; Latitudinal patterns; Seaweeds; Temperate South America.
Ano: 2000 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-078X2000000400005
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Patterns and breaking points in the distribution of benthic algae along the temperate Pacific coast of South America RChHN
MENESES,ISABEL; SANTELICES,BERNABE.
According to biogeographic studies made two decades ago, marine benthic algal species of the Pacific temperate coast of South America could be grouped into five components according to their geographic affinities. Each of these components was distributed differentially along the coastline between 4º and 56ºS and thus, their contribution to the overall flora varied depending on the latitude. Species composition changed at specific latitudes in such a way that three groups could be observed: from 4 to 6ºS, from 6 to 30ºS and from 30 to 55ºS. Since 1980, new information on marine algae along this coastline allows a review of the previous phytogeographic characterization. The presence/absence of algal species, separated by division and geographic affinity, was...
Tipo: Journal article Palavras-chave: Distribution patterns; Breaking points; Species composition; Temperate Pacific.
Ano: 2000 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-078X2000000400006
Registros recuperados: 2
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