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- W2010744306 abstract "Zooplankton diversity in shallow salt lakes of the Andean countries in South America is low and distribution is highly dependent on salinity, which varies from moderate to high. At salinities lower than 90 g/l, the halophilic copepod Boeckella poopoensis (Marsh, 1906) predominates, whereas above that level the anostracan Artemia franciscana (Kellogg, 1912) is the exclusive component of the habitat. This constitutes, however, fragmentary information only. A review of the available literature for Andean saline lakes in Bolivia, Chile, and Peru, confirms that presence and distribution of both species is significantly driven by salinity levels. The results of a species co-occurrence null model analysis, indicates that species associations are not random, and these results are supported by the correlation analysis, which indicates a significant, inverse correlation between species number and salinity, and a significant direct relation of species number with surface of the habitat. The low species diversity characteristically seen in these habitats and their dependence on salinity changes effectuated by weather conditions, provide a good model-system for monitoring weather change. La diversidad del zooplankton en lagos salinos poco profundos de Sudamerica es baja y su distribucion depende altamente de la salinidad, la cual varia de moderada a alta. A salinidades menores a 90 g/l predomina el copepodo halofilico Boeckella poopoensis (Marsh, 1906), mientras que a salinidades superiores a ese nivel, el anostraco Artemia franciscana (Kellogg, 1912) es el componente exclusivo de los habitats. Esto constituye sin embargo una informacion parcial. En una revision de la literatura disponible para lagos salinos Andinos en Bolivia, Chile y Peru se confirma que la presencia y distribucion de ambas especies esta significativamente regulada por el nivel de la salinidad. Los resultados del modelo nulo de co-ocurrencia de especies indican que las asociaciones de especies no son aleatorias, y estos resultados estan respaldados por el analisis de correlacion, el cual indica una relacion inversa significativa entre numero de especies con salinidad, y hubo relaciones directas significativas entre numero de especies con la superficie del habitat. El bajo numero de especies que es caracteristico de estos habitats y su dependencia con los cambios de salinidad efectuado por las condiciones climaticas provee un buen modelo de sistema de monitoreo de cambios climaticos." @default.
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- W2010744306 date "2010-01-01" @default.
- W2010744306 modified "2023-09-24" @default.
- W2010744306 title "A Null Model to Explain Zooplankton Species Associations in Saline Lakes of the South American Altiplano (14-27°S)" @default.
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- W2010744306 doi "https://doi.org/10.1163/001121610x498764" @default.
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