Distance decay of similarity in neotropical diatom communities.

<h4>Background</h4>The regression of similarity against distance unites several ecological phenomena, and thus provides a highly useful approach for illustrating the spatial turnover across sites. Our aim was to test whether the rates of decay in community similarity differ between diato...

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Autores principales:	Carlos E Wetzel, Denise de C Bicudo, Luc Ector, Eduardo A Lobo, Janne Soininen, Victor L Landeiro, Luis M Bini
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2012
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/5f6d05e0216647f59c6217e53a4bb57e
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spelling	oai:doaj.org-article:5f6d05e0216647f59c6217e53a4bb57e2021-11-18T07:05:38ZDistance decay of similarity in neotropical diatom communities.1932-620310.1371/journal.pone.0045071https://doaj.org/article/5f6d05e0216647f59c6217e53a4bb57e2012-01-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/23028767/pdf/?tool=EBIhttps://doaj.org/toc/1932-6203<h4>Background</h4>The regression of similarity against distance unites several ecological phenomena, and thus provides a highly useful approach for illustrating the spatial turnover across sites. Our aim was to test whether the rates of decay in community similarity differ between diatom growth forms suggested to show different dispersal ability. We hypothesized that the diatom group with lower dispersal ability (i.e. periphyton) would show higher distance decay rates than a group with higher dispersal ability (i.e. plankton).<h4>Methods/principal findings</h4>Periphyton and phytoplankton samples were gathered at sites distributed over an area of approximately 800 km length in the Negro River, Amazon basin, Brazil, South America (3°08'00"S; 59°54'30"W). Distance decay relationships were then estimated using distance-based regressions, and the coefficients of these regressions were compared among the groups with different dispersal abilities to assess our predictions. We found evidence that different tributaries and reaches of the Negro River harbor different diatom communities. As expected, the rates of distance decay in community similarity were higher for periphyton than for phytoplankton indicating the lower dispersal ability of periphytic taxa.<h4>Conclusions/significance</h4>Our study demonstrates that the comparison of distance decay relationships among taxa with similar ecological requirements, but with different growth form and thus dispersal ability provides a sound approach to evaluate the effects of dispersal ability on beta diversity patterns. Our results are also in line with the growing body of evidence indicating that microorganisms exhibit biogeographic patterns. Finally, we underscore that clumbing all microbial taxa into one group may be a flawed approach to test whether microbes exhibit biogeographic patterns.Carlos E WetzelDenise de C BicudoLuc EctorEduardo A LoboJanne SoininenVictor L LandeiroLuis M BiniPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 7, Iss 9, p e45071 (2012)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Carlos E Wetzel Denise de C Bicudo Luc Ector Eduardo A Lobo Janne Soininen Victor L Landeiro Luis M Bini Distance decay of similarity in neotropical diatom communities.
description	<h4>Background</h4>The regression of similarity against distance unites several ecological phenomena, and thus provides a highly useful approach for illustrating the spatial turnover across sites. Our aim was to test whether the rates of decay in community similarity differ between diatom growth forms suggested to show different dispersal ability. We hypothesized that the diatom group with lower dispersal ability (i.e. periphyton) would show higher distance decay rates than a group with higher dispersal ability (i.e. plankton).<h4>Methods/principal findings</h4>Periphyton and phytoplankton samples were gathered at sites distributed over an area of approximately 800 km length in the Negro River, Amazon basin, Brazil, South America (3°08'00"S; 59°54'30"W). Distance decay relationships were then estimated using distance-based regressions, and the coefficients of these regressions were compared among the groups with different dispersal abilities to assess our predictions. We found evidence that different tributaries and reaches of the Negro River harbor different diatom communities. As expected, the rates of distance decay in community similarity were higher for periphyton than for phytoplankton indicating the lower dispersal ability of periphytic taxa.<h4>Conclusions/significance</h4>Our study demonstrates that the comparison of distance decay relationships among taxa with similar ecological requirements, but with different growth form and thus dispersal ability provides a sound approach to evaluate the effects of dispersal ability on beta diversity patterns. Our results are also in line with the growing body of evidence indicating that microorganisms exhibit biogeographic patterns. Finally, we underscore that clumbing all microbial taxa into one group may be a flawed approach to test whether microbes exhibit biogeographic patterns.
format	article
author	Carlos E Wetzel Denise de C Bicudo Luc Ector Eduardo A Lobo Janne Soininen Victor L Landeiro Luis M Bini
author_facet	Carlos E Wetzel Denise de C Bicudo Luc Ector Eduardo A Lobo Janne Soininen Victor L Landeiro Luis M Bini
author_sort	Carlos E Wetzel
title	Distance decay of similarity in neotropical diatom communities.
title_short	Distance decay of similarity in neotropical diatom communities.
title_full	Distance decay of similarity in neotropical diatom communities.
title_fullStr	Distance decay of similarity in neotropical diatom communities.
title_full_unstemmed	Distance decay of similarity in neotropical diatom communities.
title_sort	distance decay of similarity in neotropical diatom communities.
publisher	Public Library of Science (PLoS)
publishDate	2012
url	https://doaj.org/article/5f6d05e0216647f59c6217e53a4bb57e
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Distance decay of similarity in neotropical diatom communities.

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