dc.contributorUniversidade Estadual Paulista (UNESP)
dc.creatorBini, Luis Mauricio
dc.creatorLandeiro, Victor Lemes
dc.creatorPadial, Andre Andrian
dc.creatorSiqueira, Tadeu
dc.creatorHeino, Jani
dc.date2014-12-03T13:11:03Z
dc.date2016-10-25T20:12:00Z
dc.date2014-12-03T13:11:03Z
dc.date2016-10-25T20:12:00Z
dc.date2014-06-01
dc.date.accessioned2017-04-06T06:25:52Z
dc.date.available2017-04-06T06:25:52Z
dc.identifierEcology. Washington: Ecological Soc Amer, v. 95, n. 6, p. 1569-1578, 2014.
dc.identifier0012-9658
dc.identifierhttp://hdl.handle.net/11449/112784
dc.identifierhttp://acervodigital.unesp.br/handle/11449/112784
dc.identifierWOS:000337218500015
dc.identifierWOS000337218500015.pdf
dc.identifierhttp://dx.doi.org/10.1890/13-0656.1
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/923539
dc.descriptionBeta diversity, the spatial or temporal variability of species composition, is a key concept in community ecology. However, our ability to predict the relative importance of the main drivers of beta diversity (e. g., environmental heterogeneity, dispersal limitation, and environmental productivity) remains limited. Using a comprehensive data set on stream invertebrate assemblages across the continental United States, we found a hump-shaped relationship between beta diversity and within-ecoregion nutrient concentrations. Within-ecoregion compositional dissimilarity matrices were mainly related to environmental distances in most of the 30 ecoregions analyzed, suggesting a stronger role for species-sorting than for spatial processes. The strength of these relationships varied considerably among ecoregions, but they were unrelated to within-ecoregion environmental heterogeneity or spatial extent. Instead, we detected a negative correlation between the strength of species sorting and nutrient concentrations. We suggest that eutrophication is a major mechanism disassembling invertebrate assemblages in streams at a continental scale.
dc.languageeng
dc.publisherEcological Soc Amer
dc.relationEcology
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.subjectassemblage structure
dc.subjectbeta diversity
dc.subjectcontinental United States
dc.subjectecoregions
dc.subjectenvironmental heterogeneity
dc.subjecteutrophication
dc.subjectmetacommunity
dc.subjectnutrient concentration
dc.subjectspatial extent
dc.subjectspecies sorting
dc.subjectstream invertebrate
dc.subjectWadeable Streams Assessment
dc.titleNutrient enrichment is related to two facets of beta diversity for stream invertebrates across the united states
dc.typeOtro


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