Community size can affect the signals of ecological drift and niche selection on biodiversity
Autor(a) principal: | |
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Data de Publicação: | 2020 |
Outros Autores: | , , , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1002/ecy.3014 http://hdl.handle.net/11449/198867 |
Resumo: | Ecological drift can override the effects of deterministic niche selection on small populations and drive the assembly of some ecological communities. We tested this hypothesis with a unique data set sampled identically in 200 streams in two regions (tropical Brazil and boreal Finland) that differ in macroinvertebrate community size by fivefold. Null models allowed us to estimate the magnitude to which β-diversity deviates from the expectation under a random assembly process while taking differences in richness and relative abundance into account, i.e., β-deviation. We found that both abundance- and incidence-based β-diversity was negatively related to community size only in Brazil. Also, β-diversity of small tropical communities was closer to stochastic expectations compared with β-diversity of large communities. We suggest that ecological drift may drive variation in some small communities by changing the expected outcome of niche selection, increasing the chances of species with low abundance and narrow distribution to occur in some communities. Habitat destruction, overexploitation, pollution, and reductions in connectivity have been reducing the size of biological communities. These environmental pressures might make smaller communities more vulnerable to novel conditions and render community dynamics more unpredictable. Incorporation of community size into ecological models should provide conceptual and applied insights into a better understanding of the processes driving biodiversity. |
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Community size can affect the signals of ecological drift and niche selection on biodiversityaquatic insectscommunity assemblydemographic stochasticitydispersalmetacommunitiesnull modelsβ-diversity deviationEcological drift can override the effects of deterministic niche selection on small populations and drive the assembly of some ecological communities. We tested this hypothesis with a unique data set sampled identically in 200 streams in two regions (tropical Brazil and boreal Finland) that differ in macroinvertebrate community size by fivefold. Null models allowed us to estimate the magnitude to which β-diversity deviates from the expectation under a random assembly process while taking differences in richness and relative abundance into account, i.e., β-deviation. We found that both abundance- and incidence-based β-diversity was negatively related to community size only in Brazil. Also, β-diversity of small tropical communities was closer to stochastic expectations compared with β-diversity of large communities. We suggest that ecological drift may drive variation in some small communities by changing the expected outcome of niche selection, increasing the chances of species with low abundance and narrow distribution to occur in some communities. Habitat destruction, overexploitation, pollution, and reductions in connectivity have been reducing the size of biological communities. These environmental pressures might make smaller communities more vulnerable to novel conditions and render community dynamics more unpredictable. Incorporation of community size into ecological models should provide conceptual and applied insights into a better understanding of the processes driving biodiversity.Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Academy of FinlandConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Institute of Biosciences São Paulo State University (UNESP), Avenida 24 A 1515Departamento de Ciências Ambientais Universidade Federal de São Carlos (UFSCar), Rodovia Washington Luis, km 235Departamento de Ecologia ICB Universidade Federal de Goiás, Avenida Esperança s/n, Câmpus SamambaiaDepartamento de Ecologia IB Universidade Federal do Rio Grande do Sul, Avenida Bento Gonçalves 9500Programa de Pós-Graduação em Ecologia de Ambientes Aquáticos Continentais Universidade Estadual de Maringá, Av. Colombo 5790Departamento de Botânica e Ecologia IB Universidade Federal de Mato Grosso, Bairro Boa EsperançaDepartment of Biological and Environmental Science University of Jyväskylä, P.O. Box 35Department of Geosciences and Geography University of Helsinki, PO Box 64WWF Finland, Lintulahdenkatu 10Finnish Environment Institute Freshwater Centre, Paavo Havaksen Tie 3Institute of Biosciences São Paulo State University (UNESP), Avenida 24 A 1515CAPES: 001FAPESP: 13/50424-1FAPESP: 19/04033-7Academy of Finland: 273557Academy of Finland: 273560CNPq: 304314/2014-5CNPq: 307587/2017-7CNPq: 465610/2014-5Universidade Estadual Paulista (Unesp)Universidade Federal de São Carlos (UFSCar)Universidade Federal de Goiás (UFG)Universidade Federal do Rio Grande do SulUniversidade Estadual de Maringá (UEM)Universidade Federal de Mato GrossoUniversity of JyväskyläUniversity of HelsinkiWWF FinlandFreshwater CentreSiqueira, Tadeu [UNESP]Saito, Victor S.Bini, Luis M.Melo, Adriano S.Petsch, Danielle K.Landeiro, Victor L.Tolonen, Kimmo T.Jyrkänkallio-Mikkola, JennySoininen, JanneHeino, Jani2020-12-12T01:24:05Z2020-12-12T01:24:05Z2020-06-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://dx.doi.org/10.1002/ecy.3014Ecology, v. 101, n. 6, 2020.1939-91700012-9658http://hdl.handle.net/11449/19886710.1002/ecy.30142-s2.0-85085097906Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengEcologyinfo:eu-repo/semantics/openAccess2021-10-22T20:42:54Zoai:repositorio.unesp.br:11449/198867Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T16:02:04.838579Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Community size can affect the signals of ecological drift and niche selection on biodiversity |
title |
Community size can affect the signals of ecological drift and niche selection on biodiversity |
spellingShingle |
Community size can affect the signals of ecological drift and niche selection on biodiversity Siqueira, Tadeu [UNESP] aquatic insects community assembly demographic stochasticity dispersal metacommunities null models β-diversity deviation |
title_short |
Community size can affect the signals of ecological drift and niche selection on biodiversity |
title_full |
Community size can affect the signals of ecological drift and niche selection on biodiversity |
title_fullStr |
Community size can affect the signals of ecological drift and niche selection on biodiversity |
title_full_unstemmed |
Community size can affect the signals of ecological drift and niche selection on biodiversity |
title_sort |
Community size can affect the signals of ecological drift and niche selection on biodiversity |
author |
Siqueira, Tadeu [UNESP] |
author_facet |
Siqueira, Tadeu [UNESP] Saito, Victor S. Bini, Luis M. Melo, Adriano S. Petsch, Danielle K. Landeiro, Victor L. Tolonen, Kimmo T. Jyrkänkallio-Mikkola, Jenny Soininen, Janne Heino, Jani |
author_role |
author |
author2 |
Saito, Victor S. Bini, Luis M. Melo, Adriano S. Petsch, Danielle K. Landeiro, Victor L. Tolonen, Kimmo T. Jyrkänkallio-Mikkola, Jenny Soininen, Janne Heino, Jani |
author2_role |
author author author author author author author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) Universidade Federal de São Carlos (UFSCar) Universidade Federal de Goiás (UFG) Universidade Federal do Rio Grande do Sul Universidade Estadual de Maringá (UEM) Universidade Federal de Mato Grosso University of Jyväskylä University of Helsinki WWF Finland Freshwater Centre |
dc.contributor.author.fl_str_mv |
Siqueira, Tadeu [UNESP] Saito, Victor S. Bini, Luis M. Melo, Adriano S. Petsch, Danielle K. Landeiro, Victor L. Tolonen, Kimmo T. Jyrkänkallio-Mikkola, Jenny Soininen, Janne Heino, Jani |
dc.subject.por.fl_str_mv |
aquatic insects community assembly demographic stochasticity dispersal metacommunities null models β-diversity deviation |
topic |
aquatic insects community assembly demographic stochasticity dispersal metacommunities null models β-diversity deviation |
description |
Ecological drift can override the effects of deterministic niche selection on small populations and drive the assembly of some ecological communities. We tested this hypothesis with a unique data set sampled identically in 200 streams in two regions (tropical Brazil and boreal Finland) that differ in macroinvertebrate community size by fivefold. Null models allowed us to estimate the magnitude to which β-diversity deviates from the expectation under a random assembly process while taking differences in richness and relative abundance into account, i.e., β-deviation. We found that both abundance- and incidence-based β-diversity was negatively related to community size only in Brazil. Also, β-diversity of small tropical communities was closer to stochastic expectations compared with β-diversity of large communities. We suggest that ecological drift may drive variation in some small communities by changing the expected outcome of niche selection, increasing the chances of species with low abundance and narrow distribution to occur in some communities. Habitat destruction, overexploitation, pollution, and reductions in connectivity have been reducing the size of biological communities. These environmental pressures might make smaller communities more vulnerable to novel conditions and render community dynamics more unpredictable. Incorporation of community size into ecological models should provide conceptual and applied insights into a better understanding of the processes driving biodiversity. |
publishDate |
2020 |
dc.date.none.fl_str_mv |
2020-12-12T01:24:05Z 2020-12-12T01:24:05Z 2020-06-01 |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.1002/ecy.3014 Ecology, v. 101, n. 6, 2020. 1939-9170 0012-9658 http://hdl.handle.net/11449/198867 10.1002/ecy.3014 2-s2.0-85085097906 |
url |
http://dx.doi.org/10.1002/ecy.3014 http://hdl.handle.net/11449/198867 |
identifier_str_mv |
Ecology, v. 101, n. 6, 2020. 1939-9170 0012-9658 10.1002/ecy.3014 2-s2.0-85085097906 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Ecology |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
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1808128597185003520 |