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DC Field | Value | Language |
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dc.contributor.author | Casatti, Lilian | - |
dc.contributor.author | Ferreira, Cristiane de Paula | - |
dc.contributor.author | Carvalho, Fernando Rogerio | - |
dc.date.accessioned | 2014-05-20T14:03:44Z | - |
dc.date.accessioned | 2016-10-25T17:09:48Z | - |
dc.date.available | 2014-05-20T14:03:44Z | - |
dc.date.available | 2016-10-25T17:09:48Z | - |
dc.date.issued | 2009-10-01 | - |
dc.identifier | http://dx.doi.org/10.1007/s10750-009-9849-y | - |
dc.identifier.citation | Hydrobiologia. Dordrecht: Springer, v. 632, n. 1, p. 273-283, 2009. | - |
dc.identifier.issn | 0018-8158 | - |
dc.identifier.uri | http://hdl.handle.net/11449/22416 | - |
dc.identifier.uri | http://acervodigital.unesp.br/handle/11449/22416 | - |
dc.description.abstract | This study investigates whether (1) structural configuration (considering substrate composition, wood debris, marginal and riparian vegetation) of streams suggests habitat simplification on a basin scale and (2) fish assemblage structure follows stream habitat configurations. Ninety-five sites in two pasture basins in southeastern Brazil were randomly selected. Two passes of electro-fishing were done in a 75-m reach at each site. Ten habitat descriptors related to in-stream and riparian physical structures were evaluated at each stream reach. Two groups of streams were identified by principal component analysis: a grassy and a non-grassy group. In comparison to non-grassy sites, grass-dominated streams exhibited a more homogenous fish fauna due to lower species diversity and higher dominance, especially by the guppy Poecilia reticulata, a highly generalist exotic species. The grassy group had not only the most simplified habitat but also the most simplified fish fauna, and the combination of grass-dominated, completely deforested, heavily silted conditions with recent land use conversion may cause a future habitat homogenization followed by a fish fauna homogenization on a regional scale. | en |
dc.description.sponsorship | Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) | - |
dc.description.sponsorship | Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) | - |
dc.format.extent | 273-283 | - |
dc.language.iso | eng | - |
dc.publisher | Springer | - |
dc.source | Web of Science | - |
dc.subject | Habitat structure | en |
dc.subject | Simplification | en |
dc.subject | Riparian vegetation | en |
dc.subject | Non-native species | en |
dc.subject | Poecilia reticulata | en |
dc.title | Grass-dominated stream sites exhibit low fish species diversity and dominance by guppies: an assessment of two tropical pasture river basins | en |
dc.type | outro | - |
dc.contributor.institution | Universidade Estadual Paulista (UNESP) | - |
dc.contributor.institution | Universidade Federal do Rio Grande do Sul (UFRGS) | - |
dc.description.affiliation | UNESP Univ Estadual Paulista, IBILCE, Lab Ictiol, Dept Bot & Zool, BR-15054000 Sao Jose do Rio Preto, SP, Brazil | - |
dc.description.affiliation | Universidade Federal do Rio Grande do Sul (UFRGS), Lab Ictiol, Dept Zool, BR-91501970 Porto Alegre, RS, Brazil | - |
dc.description.affiliation | Universidade Federal do Rio Grande do Sul (UFRGS), Programa Posgrad Biol Anim, Inst Biociencias, BR-91501970 Porto Alegre, RS, Brazil | - |
dc.description.affiliationUnesp | UNESP Univ Estadual Paulista, IBILCE, Lab Ictiol, Dept Bot & Zool, BR-15054000 Sao Jose do Rio Preto, SP, Brazil | - |
dc.identifier.doi | 10.1007/s10750-009-9849-y | - |
dc.identifier.wos | WOS:000268728500019 | - |
dc.rights.accessRights | Acesso restrito | - |
dc.relation.ispartof | Hydrobiologia | - |
Appears in Collections: | Artigos, TCCs, Teses e Dissertações da Unesp |
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