Does climate influence spatial variation of tree species alpha diversity in the Brazilian Atlantic rainforest?

Detalhes bibliográficos
Autor(a) principal: Cerqueira, Roberta Macedo
Data de Publicação: 2015
Outros Autores: Martins, Fernando Roberto
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Acta Scientiarum Biological Sciences
DOI: 10.4025/actascibiolsci.v37i2.26001
Texto Completo: http://www.periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/26001
Resumo: We tested the hypothesis that the variation in tree species alpha diversity is driven by climate in the Brazilian Atlantic Rainforest (ARF). Considering 139 samples of trees with DBH ≥ 4.8 cm, we correlated alpha diversity measures (Shannon heterogeneity index H', Chao I richness estimator, and Simpson concentration index C) with climate variables (perhumidity index, mean annual rainfall, and mean annual temperature) and spatial variables (latitude, longitude, and altitude). Using CCA, multiple regression analysis and RDA procedures, we found a positive relationship between latitude, longitude, and altitude with Shannon’s diversity index and Chao I richness estimator, and a negative relationship with Simpson concentration index. Over 75% of the variation remained unexplained and were attributed to stochastic processes. These results indicate that climate has a very weak influence on tree species alpha diversity, which is more influenced by spatial variation in the ARF. We propose that the current tree species alpha diversity could be a result of the history of the ARF during the Cenozoic, when geological events and climate oscillations could have triggered biogeographic processes, such as alternating episodes of vicariance and dispersal, which would have lead to the great diversity of species and heterogeneity across the geographic space observed today. 
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spelling Does climate influence spatial variation of tree species alpha diversity in the Brazilian Atlantic rainforest?diversity indiceslatitudinal variationlimited dispersalspatial variablesbiogeographical processesEcologiaWe tested the hypothesis that the variation in tree species alpha diversity is driven by climate in the Brazilian Atlantic Rainforest (ARF). Considering 139 samples of trees with DBH ≥ 4.8 cm, we correlated alpha diversity measures (Shannon heterogeneity index H', Chao I richness estimator, and Simpson concentration index C) with climate variables (perhumidity index, mean annual rainfall, and mean annual temperature) and spatial variables (latitude, longitude, and altitude). Using CCA, multiple regression analysis and RDA procedures, we found a positive relationship between latitude, longitude, and altitude with Shannon’s diversity index and Chao I richness estimator, and a negative relationship with Simpson concentration index. Over 75% of the variation remained unexplained and were attributed to stochastic processes. These results indicate that climate has a very weak influence on tree species alpha diversity, which is more influenced by spatial variation in the ARF. We propose that the current tree species alpha diversity could be a result of the history of the ARF during the Cenozoic, when geological events and climate oscillations could have triggered biogeographic processes, such as alternating episodes of vicariance and dispersal, which would have lead to the great diversity of species and heterogeneity across the geographic space observed today. Universidade Estadual De Maringá2015-08-06info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionFitossociologia, estrutura da vegetaçãoapplication/pdfhttp://www.periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/2600110.4025/actascibiolsci.v37i2.26001Acta Scientiarum. Biological Sciences; Vol 37 No 2 (2015); 185-196Acta Scientiarum. Biological Sciences; v. 37 n. 2 (2015); 185-1961807-863X1679-9283reponame:Acta Scientiarum Biological Sciencesinstname:Universidade Estadual de Maringá (UEM)instacron:UEMenghttp://www.periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/26001/pdf_54Cerqueira, Roberta MacedoMartins, Fernando Robertoinfo:eu-repo/semantics/openAccess2015-08-06T15:38:50Zoai:periodicos.uem.br/ojs:article/26001Revistahttp://www.periodicos.uem.br/ojs/index.php/ActaSciBiolSciPUBhttp://www.periodicos.uem.br/ojs/index.php/ActaSciBiolSci/oai||actabiol@uem.br1807-863X1679-9283opendoar:2015-08-06T15:38:50Acta Scientiarum Biological Sciences - Universidade Estadual de Maringá (UEM)false
dc.title.none.fl_str_mv Does climate influence spatial variation of tree species alpha diversity in the Brazilian Atlantic rainforest?
title Does climate influence spatial variation of tree species alpha diversity in the Brazilian Atlantic rainforest?
spellingShingle Does climate influence spatial variation of tree species alpha diversity in the Brazilian Atlantic rainforest?
Does climate influence spatial variation of tree species alpha diversity in the Brazilian Atlantic rainforest?
Cerqueira, Roberta Macedo
diversity indices
latitudinal variation
limited dispersal
spatial variables
biogeographical processes
Ecologia
Cerqueira, Roberta Macedo
diversity indices
latitudinal variation
limited dispersal
spatial variables
biogeographical processes
Ecologia
title_short Does climate influence spatial variation of tree species alpha diversity in the Brazilian Atlantic rainforest?
title_full Does climate influence spatial variation of tree species alpha diversity in the Brazilian Atlantic rainforest?
title_fullStr Does climate influence spatial variation of tree species alpha diversity in the Brazilian Atlantic rainforest?
Does climate influence spatial variation of tree species alpha diversity in the Brazilian Atlantic rainforest?
title_full_unstemmed Does climate influence spatial variation of tree species alpha diversity in the Brazilian Atlantic rainforest?
Does climate influence spatial variation of tree species alpha diversity in the Brazilian Atlantic rainforest?
title_sort Does climate influence spatial variation of tree species alpha diversity in the Brazilian Atlantic rainforest?
author Cerqueira, Roberta Macedo
author_facet Cerqueira, Roberta Macedo
Cerqueira, Roberta Macedo
Martins, Fernando Roberto
Martins, Fernando Roberto
author_role author
author2 Martins, Fernando Roberto
author2_role author
dc.contributor.author.fl_str_mv Cerqueira, Roberta Macedo
Martins, Fernando Roberto
dc.subject.por.fl_str_mv diversity indices
latitudinal variation
limited dispersal
spatial variables
biogeographical processes
Ecologia
topic diversity indices
latitudinal variation
limited dispersal
spatial variables
biogeographical processes
Ecologia
description We tested the hypothesis that the variation in tree species alpha diversity is driven by climate in the Brazilian Atlantic Rainforest (ARF). Considering 139 samples of trees with DBH ≥ 4.8 cm, we correlated alpha diversity measures (Shannon heterogeneity index H', Chao I richness estimator, and Simpson concentration index C) with climate variables (perhumidity index, mean annual rainfall, and mean annual temperature) and spatial variables (latitude, longitude, and altitude). Using CCA, multiple regression analysis and RDA procedures, we found a positive relationship between latitude, longitude, and altitude with Shannon’s diversity index and Chao I richness estimator, and a negative relationship with Simpson concentration index. Over 75% of the variation remained unexplained and were attributed to stochastic processes. These results indicate that climate has a very weak influence on tree species alpha diversity, which is more influenced by spatial variation in the ARF. We propose that the current tree species alpha diversity could be a result of the history of the ARF during the Cenozoic, when geological events and climate oscillations could have triggered biogeographic processes, such as alternating episodes of vicariance and dispersal, which would have lead to the great diversity of species and heterogeneity across the geographic space observed today. 
publishDate 2015
dc.date.none.fl_str_mv 2015-08-06
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Fitossociologia, estrutura da vegetação
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://www.periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/26001
10.4025/actascibiolsci.v37i2.26001
url http://www.periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/26001
identifier_str_mv 10.4025/actascibiolsci.v37i2.26001
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv http://www.periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/26001/pdf_54
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Universidade Estadual De Maringá
publisher.none.fl_str_mv Universidade Estadual De Maringá
dc.source.none.fl_str_mv Acta Scientiarum. Biological Sciences; Vol 37 No 2 (2015); 185-196
Acta Scientiarum. Biological Sciences; v. 37 n. 2 (2015); 185-196
1807-863X
1679-9283
reponame:Acta Scientiarum Biological Sciences
instname:Universidade Estadual de Maringá (UEM)
instacron:UEM
instname_str Universidade Estadual de Maringá (UEM)
instacron_str UEM
institution UEM
reponame_str Acta Scientiarum Biological Sciences
collection Acta Scientiarum Biological Sciences
repository.name.fl_str_mv Acta Scientiarum Biological Sciences - Universidade Estadual de Maringá (UEM)
repository.mail.fl_str_mv ||actabiol@uem.br
_version_ 1822182735416918016
dc.identifier.doi.none.fl_str_mv 10.4025/actascibiolsci.v37i2.26001