Stochastic species loss and dispersal limitation drive patterns of spatial and temporal beta diversity of fish assemblages in tropical agroecosystem streams

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dc.contributor.authorZeni, Jaquelini O. [UNESP]
dc.contributor.authorHoeinghaus, David J.
dc.contributor.authorRoa-Fuentes, Camilo A.
dc.contributor.authorCasatti, Lilian [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionUniversity of North Texas
dc.contributor.institutionUPTC – Universidad Pedagógica y Tecnológica de Colombia
dc.date.accessioned2020-12-12T02:46:47Z
dc.date.available2020-12-12T02:46:47Z
dc.date.issued2020-01-01
dc.description.abstractBeta diversity quantifies changes in assemblages among sites and can identify how anthropogenic changes affect species distributions patterns. We investigated how spatial and temporal beta diversity of fish assemblages responded to recent environmental changes within an established agroecosystem and investigated whether the observed pattern of spatial and temporal beta diversity was different from null expectations. Fish assemblages in 38 streams were sampled in 2003 and 2013, and local and regional variables were quantified in both periods. Species were classified into functional groups based on 15 ecomorphological traits. We tested for relationships between spatial and temporal patterns of beta diversity and its components (turnover and nestedness) and environmental distances and degree of changes over time, and for differences with null expectations. Spatial beta diversity was mostly due to turnover and remained relatively unchanged between periods. Spatial beta diversity was not different from randomness. Temporal beta diversity was lower than expected by null models and not correlated with environmental changes. Past environmental filters related to a long history of agricultural development homogenized habitats and fish assemblages by selecting for habitat-generalist species. In this context, contemporary fish assemblage dynamics in these streams are driven primarily by stochastic processes, likely stochastic local species loss.en
dc.description.affiliationDepartment of Ecology UNESP - São Paulo State University, 1515 24A Avenue
dc.description.affiliationDepartment of Zoology and Botany UNESP - São Paulo State University, 2265 Cristóvão Colombo Street
dc.description.affiliationDepartment of Biological Sciences and the Advanced Environmental Research Institute University of North Texas, 1155 Union Circle #310559
dc.description.affiliationEscuela de Ciencias Biológicas UPTC – Universidad Pedagógica y Tecnológica de Colombia
dc.description.affiliationUnespDepartment of Ecology UNESP - São Paulo State University, 1515 24A Avenue
dc.description.affiliationUnespDepartment of Zoology and Botany UNESP - São Paulo State University, 2265 Cristóvão Colombo Street
dc.identifierhttp://dx.doi.org/10.1007/s10750-020-04356-1
dc.identifier.citationHydrobiologia.
dc.identifier.doi10.1007/s10750-020-04356-1
dc.identifier.issn1573-5117
dc.identifier.issn0018-8158
dc.identifier.scopus2-s2.0-85088827762
dc.identifier.urihttp://hdl.handle.net/11449/201982
dc.language.isoeng
dc.relation.ispartofHydrobiologia
dc.sourceScopus
dc.subjectDispersal limitation
dc.subjectHistorical environmental filters
dc.subjectNestedness
dc.subjectTemporal dissimilarity
dc.subjectTurnover
dc.titleStochastic species loss and dispersal limitation drive patterns of spatial and temporal beta diversity of fish assemblages in tropical agroecosystem streamsen
dc.typeArtigo
unesp.author.orcid0000-0001-7438-4818[1]

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