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Title

A Randomized Trait Community Clustering approach to unveil consistent environmental thresholds in community assembly

AuthorsTriadó-Margarit, Xavier ; Capitán, José A.; Menéndez-Serra, Mateu; Ortiz-Álvarez, Rüdiger ; Ontiveros, Vicente J.; Casamayor, Emilio O. ; Alonso, David
Issue Date2019
PublisherNature Publishing Group
CitationThe ISME Journal : doi:10.1038/s41396-019-0454-4
AbstractSimilarities and differences of phenotypes within local co-occurring species hold the key to inferring the contribution of stochastic or deterministic processes in community assembly. Developing both phylogenetic-based and trait-based quantitative methods to unravel these processes is a major aim in community ecology. We developed a trait-based approach that: (i) assesses if a community trait clustering pattern is related to increasing environmental constraints along a gradient; and (ii) determines quantitative thresholds for an environmental variable along a gradient to interpret changes in prevailing community assembly drivers. We used a regional set of natural shallow saline ponds covering a wide salinity gradient (0.1–40% w/v). We identify a consistent discrete salinity threshold (ca. 5%) for microbial community assembly drivers. Above 5% salinity a strong environmental filtering prevailed as an assembly force, whereas a combination of biotic and abiotic factors dominated at lower salinities. This method provides a conceptual approach to identify consistent environmental thresholds in community assembly and enables quantitative predictions for the ecological impact of environmental changes.
DescriptionEste artículo contiene 9 páginas, 4 figuras.
Publisher version (URL)https://doi.org/10.1038/s41396-019-0454-4
URIhttp://hdl.handle.net/10261/186490
ISSN1751-7362
E-ISSN1751-7370
Appears in Collections:(CEAB) Artículos
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