Metacommunity structuring in stream networks: roles of dispersal mode, distance type, and regional environmental context

Página do item simplificado
dc.contributor.authorGronroos, Mira
dc.contributor.authorHeino, Jani
dc.contributor.authorSiqueira, Tadeu [UNESP]
dc.contributor.authorLandeiro, Victor L.
dc.contributor.authorKotanen, Juho
dc.contributor.authorBini, Luis M.
dc.contributor.institutionFinnish Environm Inst
dc.contributor.institutionUniv Oulu
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionUniv Fed Mato Grosso
dc.contributor.institutionUniversidade Federal de Goiás (UFG)
dc.contributor.institutionCtr Econ Dev Transport & Environm South Savo
dc.date.accessioned2014-12-03T13:11:03Z
dc.date.available2014-12-03T13:11:03Z
dc.date.issued2013-11-01
dc.description.abstractWithin a metacommunity, both environmental and spatial processes regulate variation in local community structure. The strength of these processes may vary depending on species traits (e.g., dispersal mode) or the characteristics of the regions studied (e.g., spatial extent, environmental heterogeneity). We studied the metacommunity structuring of three groups of stream macroinvertebrates differing in their overland dispersal mode (passive dispersers with aquatic adults; passive dispersers with terrestrial adults; active dispersers with terrestrial adults). We predicted that environmental structuring should be more important for active dispersers, because of their better ability to track environmental variability, and that spatial structuring should be more important for species with aquatic adults, because of stronger dispersal limitation. We sampled a total of 70 stream riffle sites in three drainage basins. Environmental heterogeneity was unrelated to spatial extent among our study regions, allowing us to examine the effects of these two factors on metacommunity structuring. We used partial redundancy analysis and Moran's eigenvector maps based on overland and watercourse distances to study the relative importance of environmental control and spatial structuring. We found that, compared with environmental control, spatial structuring was generally negligible, and it did not vary according to our predictions. In general, active dispersers with terrestrial adults showed stronger environmental control than the two passively dispersing groups, suggesting that the species dispersing actively are better able to track environmental variability. There were no clear differences in the results based on watercourse and overland distances. The variability in metacommunity structuring among basins was not related to the differences in the environmental heterogeneity and spatial extent. Our study emphasized that (1) environmental control is prevailing in stream metacommunities, (2) dispersal mode may have an important effect on metacommunity structuring, and (3) some factors other than spatial extent or environmental heterogeneity contributed to the differences among the basins.en
dc.description.affiliationFinnish Environm Inst, Ecosyst Change Unit, Oulu, Finland
dc.description.affiliationUniv Oulu, Dept Biol, Oulu, Finland
dc.description.affiliationUniv Estadual Paulista, UNESP, Dept Ecol, Rio Claro, Brazil
dc.description.affiliationUniv Fed Mato Grosso, Dept Bot & Ecol, Cuiaba, Brazil
dc.description.affiliationUniv Fed Goias, Dept Ecol, Goias, Go, Brazil
dc.description.affiliationCtr Econ Dev Transport & Environm South Savo, Mikkeli, Finland
dc.description.affiliationUnespUniv Estadual Paulista, UNESP, Dept Ecol, Rio Claro, Brazil
dc.description.sponsorshipAcademy of Finland
dc.description.sponsorshipMaj and Tor Nessling Foundation
dc.description.sponsorshipKone Foundation
dc.format.extent4473-4487
dc.identifierhttp://dx.doi.org/10.1002/ece3.834
dc.identifier.citationEcology And Evolution. Hoboken: Wiley-blackwell, v. 3, n. 13, p. 4473-4487, 2013.
dc.identifier.doi10.1002/ece3.834
dc.identifier.fileWOS000326824300017.pdf
dc.identifier.issn2045-7758
dc.identifier.urihttp://hdl.handle.net/11449/112781
dc.identifier.wosWOS:000326824300017
dc.language.isoeng
dc.publisherWiley-Blackwell
dc.relation.ispartofEcology and Evolution
dc.relation.ispartofjcr2.340
dc.relation.ispartofsjr1,356
dc.rights.accessRightsAcesso aberto
dc.sourceWeb of Science
dc.subjectActive dispersalen
dc.subjectaquatic macroinvertebratesen
dc.subjectcommunity structureen
dc.subjectenvironmental filteringen
dc.subjectheadwater streamsen
dc.subjectMoran's eigenvector mapsen
dc.subjectpartial redundancy analysisen
dc.subjectpassive dispersalen
dc.subjectvariation partitioningen
dc.titleMetacommunity structuring in stream networks: roles of dispersal mode, distance type, and regional environmental contexten
dc.typeArtigo
dcterms.licensehttp://olabout.wiley.com/WileyCDA/Section/id-406071.html
dcterms.rightsHolderWiley-Blackwell
unesp.campusUniversidade Estadual Paulista (Unesp), Instituto de Biociências, Rio Claropt

Arquivos

Pacote Original
Agora exibindo 1 - 1 de 1
Imagem de Miniatura
Nome:
WOS000326824300017.pdf
Tamanho:
973.57 KB
Formato:
Adobe Portable Document Format
Baixar

Coleções

Artigos - Ecologia - IBRC