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Título: | Landscape-scale spatial abundance distributions discriminate core from random components of boreal lake bacterioplankton |
Autor: | Niño-García, Juan Pablo; Ruiz-González, Clara CSIC ORCID ; Del Giorgio, Paul A. | Palabras clave: | Aquatic bacterial communities Boreal lakes Environmental sorting Hydrologic network Mass effects Rare biosphere Recruitment |
Fecha de publicación: | dic-2016 | Editor: | Centre national de la recherche scientifique (France) | Citación: | Ecology Letters 19: 1506-1515 (2016) | Resumen: | Aquatic bacterial communities harbour thousands of coexisting taxa. To meet the challenge of discriminating between a ‘core’ and a sporadically occurring ‘random’ component of these communities, we explored the spatial abundance distribution of individual bacterioplankton taxa across 198 boreal lakes and their associated fluvial networks (188 rivers). We found that all taxa could be grouped into four distinct categories based on model statistical distributions (normal like, bimodal, logistic and lognormal). The distribution patterns across lakes and their associated river networks showed that lake communities are composed of a core of taxa whose distribution appears to be linked to in-lake environmental sorting (normal-like and bimodal categories), and a large fraction of mostly rare bacteria (94% of all taxa) whose presence appears to be largely random and linked to downstream transport in aquatic networks (logistic and lognormal categories). These rare taxa are thus likely to reflect species sorting at upstream locations, providing a perspective of the conditions prevailing in entire aquatic networks rather than only in lakes | Descripción: | 10 pages, 6 figures, supporting information https://dx.doi.org/10.1111/ele.12704.-- Data accessibility: Upon acceptance of the manuscript, we agree to archive the DNA sequences or any other results in an appropriate public repository | Versión del editor: | https://dx.doi.org/10.1111/ele.12704 | URI: | http://hdl.handle.net/10261/142976 | DOI: | 10.1111/ele.12704 | Identificadores: | doi: 10.1111/ele.12704 issn: 1461-023X e-issn: 1461-0248 |
Aparece en las colecciones: | (ICM) Artículos |
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