Assessing the spatial variation of functional diversity estimates based on dendrograms in phytoplankton communities
Autor(a) principal: | |
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Data de Publicação: | 2017 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Acta Botanica Brasilica |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062017000400571 |
Resumo: | ABSTRACT Variation in phytoplankton functional diversity is partioned and mapped using several indices and linkage methods based on dendrograms. The relationships between diversity metrics and major environmental predictors, including zooplankton density, were assessed in 29 phytoplankton communities of floodplain lakes distributed along the Middle Araguaia River in central Brazil. The dendrogram-based functional diversity indices were Functional Group Richness, Functional Diversity, Mean Pairwise Distance and Mean Nearest Taxon Distance, whereas seven different hierarchical agglomerative linkage methods we used. The performance of indices were compared using ANOVA and their spatial variation in response to major environmental predictors evaluated. The results indicate that variation in functional diversity values is primarily a product of the type of index chosen. This variation was statistically significant in 90 % of the floodplain lakes studied; however, a spatial pattern of variation in index values along the river was not detected. Furthermore, environmental constraints, including zooplankton density, were weak predictors of functional diversity indices. Therefore, the mathematical characteristics of indices are of primary importance in explaining variation among functional diversity values. |
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Acta Botanica Brasilica |
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Assessing the spatial variation of functional diversity estimates based on dendrograms in phytoplankton communitiesAraguaia Riverfunctional traitslinkage methodMean Nearest Taxon DistanceMean Pairwise DistanceABSTRACT Variation in phytoplankton functional diversity is partioned and mapped using several indices and linkage methods based on dendrograms. The relationships between diversity metrics and major environmental predictors, including zooplankton density, were assessed in 29 phytoplankton communities of floodplain lakes distributed along the Middle Araguaia River in central Brazil. The dendrogram-based functional diversity indices were Functional Group Richness, Functional Diversity, Mean Pairwise Distance and Mean Nearest Taxon Distance, whereas seven different hierarchical agglomerative linkage methods we used. The performance of indices were compared using ANOVA and their spatial variation in response to major environmental predictors evaluated. The results indicate that variation in functional diversity values is primarily a product of the type of index chosen. This variation was statistically significant in 90 % of the floodplain lakes studied; however, a spatial pattern of variation in index values along the river was not detected. Furthermore, environmental constraints, including zooplankton density, were weak predictors of functional diversity indices. Therefore, the mathematical characteristics of indices are of primary importance in explaining variation among functional diversity values.Sociedade Botânica do Brasil2017-12-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062017000400571Acta Botanica Brasilica v.31 n.4 2017reponame:Acta Botanica Brasilicainstname:Sociedade Botânica do Brasil (SBB)instacron:SBB10.1590/0102-33062017abb0018info:eu-repo/semantics/openAccessMachado,Karine BorgesTeresa,Fabrício BarretoNabout,João Carloseng2017-10-11T00:00:00Zoai:scielo:S0102-33062017000400571Revistahttps://www.scielo.br/j/abb/ONGhttps://old.scielo.br/oai/scielo-oai.phpacta@botanica.org.br||acta@botanica.org.br|| f.a.r.santos@gmail.com1677-941X0102-3306opendoar:2017-10-11T00:00Acta Botanica Brasilica - Sociedade Botânica do Brasil (SBB)false |
dc.title.none.fl_str_mv |
Assessing the spatial variation of functional diversity estimates based on dendrograms in phytoplankton communities |
title |
Assessing the spatial variation of functional diversity estimates based on dendrograms in phytoplankton communities |
spellingShingle |
Assessing the spatial variation of functional diversity estimates based on dendrograms in phytoplankton communities Machado,Karine Borges Araguaia River functional traits linkage method Mean Nearest Taxon Distance Mean Pairwise Distance |
title_short |
Assessing the spatial variation of functional diversity estimates based on dendrograms in phytoplankton communities |
title_full |
Assessing the spatial variation of functional diversity estimates based on dendrograms in phytoplankton communities |
title_fullStr |
Assessing the spatial variation of functional diversity estimates based on dendrograms in phytoplankton communities |
title_full_unstemmed |
Assessing the spatial variation of functional diversity estimates based on dendrograms in phytoplankton communities |
title_sort |
Assessing the spatial variation of functional diversity estimates based on dendrograms in phytoplankton communities |
author |
Machado,Karine Borges |
author_facet |
Machado,Karine Borges Teresa,Fabrício Barreto Nabout,João Carlos |
author_role |
author |
author2 |
Teresa,Fabrício Barreto Nabout,João Carlos |
author2_role |
author author |
dc.contributor.author.fl_str_mv |
Machado,Karine Borges Teresa,Fabrício Barreto Nabout,João Carlos |
dc.subject.por.fl_str_mv |
Araguaia River functional traits linkage method Mean Nearest Taxon Distance Mean Pairwise Distance |
topic |
Araguaia River functional traits linkage method Mean Nearest Taxon Distance Mean Pairwise Distance |
description |
ABSTRACT Variation in phytoplankton functional diversity is partioned and mapped using several indices and linkage methods based on dendrograms. The relationships between diversity metrics and major environmental predictors, including zooplankton density, were assessed in 29 phytoplankton communities of floodplain lakes distributed along the Middle Araguaia River in central Brazil. The dendrogram-based functional diversity indices were Functional Group Richness, Functional Diversity, Mean Pairwise Distance and Mean Nearest Taxon Distance, whereas seven different hierarchical agglomerative linkage methods we used. The performance of indices were compared using ANOVA and their spatial variation in response to major environmental predictors evaluated. The results indicate that variation in functional diversity values is primarily a product of the type of index chosen. This variation was statistically significant in 90 % of the floodplain lakes studied; however, a spatial pattern of variation in index values along the river was not detected. Furthermore, environmental constraints, including zooplankton density, were weak predictors of functional diversity indices. Therefore, the mathematical characteristics of indices are of primary importance in explaining variation among functional diversity values. |
publishDate |
2017 |
dc.date.none.fl_str_mv |
2017-12-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062017000400571 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062017000400571 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/0102-33062017abb0018 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
text/html |
dc.publisher.none.fl_str_mv |
Sociedade Botânica do Brasil |
publisher.none.fl_str_mv |
Sociedade Botânica do Brasil |
dc.source.none.fl_str_mv |
Acta Botanica Brasilica v.31 n.4 2017 reponame:Acta Botanica Brasilica instname:Sociedade Botânica do Brasil (SBB) instacron:SBB |
instname_str |
Sociedade Botânica do Brasil (SBB) |
instacron_str |
SBB |
institution |
SBB |
reponame_str |
Acta Botanica Brasilica |
collection |
Acta Botanica Brasilica |
repository.name.fl_str_mv |
Acta Botanica Brasilica - Sociedade Botânica do Brasil (SBB) |
repository.mail.fl_str_mv |
acta@botanica.org.br||acta@botanica.org.br|| f.a.r.santos@gmail.com |
_version_ |
1752126662521126912 |