Effects of human disturbance on habitat and fish diversity in Neotropical streams

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dc.contributor.authorLarentis, Crislei
dc.contributor.authorKliemann, Bruna Caroline Kotz [UNESP]
dc.contributor.authorNeves, Mayara Pereira
dc.contributor.authorDelariva, Rosilene Luciana
dc.contributor.institutionUniversidade Estadual de Maringá (UEM)
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)
dc.contributor.institutionUniversidade Federal do Rio Grande do Sul
dc.contributor.institutionUniversidade Estadual do Oeste do Paraná- UNIOESTE
dc.date.accessioned2023-07-29T13:20:29Z
dc.date.available2023-07-29T13:20:29Z
dc.date.issued2022-09-01
dc.description.abstractHuman pressures have been intensely modifying freshwater ecosystems worldwide. We assessed the effects of human pressure on habitat diversity and primary productivity to understand the consequences on fish fauna in 25 tropical and subtropical streams of two globally important ecoregions: Iguassu and Upper Paraná. We hypothesized that the increased human pressure (urbanization and agriculture) on stream environments, both at the local and catchment scales, directly decreases habitat diversity. We also hypothesized that increased human pressure triggers changes in primary productivity and fish fauna composition and structure. We evaluated the human pressure intensity using the Integrated Disturbance Index and the Rapid Habitat Diversity Assessment protocol, which combines information about land use, land cover and environmental characteristics of the stream catchment and sampling sites. Streams with increased human disturbance had lower habitat diversity, higher primary productivity, and high non-native species abundance. Fish compositional turnover was associated with increased human disturbance. Native and degradation-sensitive fish species, especially endemic ones, were associated with streams with higher habitat diversity and forested cover. Degradation-resistant fishes, mostly nonnative species, were associated with streams with higher human disturbance and urban land use. Although human pressure did not affect species richness, Shannon diversity, and Simpson dominance, there were significant effects on numerical abundance and fish species equitability. In this study, human pressure directly affected habitat structure, with indirect consequences for fish fauna, increasing the potential for local extirpation of rare species.en
dc.description.affiliationPrograma de Pós-Graduação em Biologia Comparada Universidade Estadual de Maringá, Paraná
dc.description.affiliationPrograma de Pós-graduação em Ciências Biológicas/Zoologia Instituto de Biociências Universidade Estadual Paulista (UNESP), Botucatu
dc.description.affiliationPrograma de Pós-graduação em Biologia Animal Universidade Federal do Rio Grande do Sul, Rio Grande do Sul
dc.description.affiliationLaboratório de Ictiologia Ecologia e Biomonitoramentos (LIEB) Universidade Estadual do Oeste do Paraná- UNIOESTE, Paraná
dc.description.affiliationUnespPrograma de Pós-graduação em Ciências Biológicas/Zoologia Instituto de Biociências Universidade Estadual Paulista (UNESP), Botucatu
dc.identifierhttp://dx.doi.org/10.1371/journal.pone.0274191
dc.identifier.citationPLoS ONE, v. 17, n. 9 September, 2022.
dc.identifier.doi10.1371/journal.pone.0274191
dc.identifier.issn1932-6203
dc.identifier.scopus2-s2.0-85137664107
dc.identifier.urihttp://hdl.handle.net/11449/247601
dc.language.isoeng
dc.relation.ispartofPLoS ONE
dc.sourceScopus
dc.titleEffects of human disturbance on habitat and fish diversity in Neotropical streamsen
dc.typeArtigo

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Artigos - Zoologia - IBB