Multi-scale Homogenization of Caddisfly Metacomminities in Human-modified Landscapes.
The multiple scale of stream networks spatial organization reflects the hierarchical arrangement of streams habitats with increasingly levels of complexity from sub-catchments until entire hydrographic basins. Through these multiple spatial scales, local stream habitats form nested subsets of increa...
| Publicado en: | Environmental Management Vol. 61; no. 4; pp. 687 - 700 |
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| Autores principales: | , , , , |
| Formato: | Journal Article |
| Publicado: |
Springer Nature
Apr2018
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=128462554&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 128462554 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 0364152X O5H jtl: Environmental Management issn: 0364152X maglogo: N pubinfo: dt: Apr2018 vid: 61 iid: 4 pid: 237 pub: Springer Nature place: New York, New York artinfo: ui: 128462554 10.1007/s00267-017-0989-y 128462554 ppf: 687 ppct: 13 formats: fmt: – @attributes: type: T – @attributes: type: P tig: atl: Multi-scale Homogenization of Caddisfly Metacomminities in Human-modified Landscapes. aug: au: Simião-Ferreira, Juliana Nogueira, Denis Silva Santos, Anna Claudia De Marco, Paulo Angelini, Ronaldo affil: Laboratório de Pesquisas Ecológicas e Educação Científica, Universidade Estadual de Goiás, BR 153 n. 3105 Fazenda Barreiro do Meio Caixa Posta 459, 75001-970, Anápolis, GO, Brazil sug: ab: The multiple scale of stream networks spatial organization reflects the hierarchical arrangement of streams habitats with increasingly levels of complexity from sub-catchments until entire hydrographic basins. Through these multiple spatial scales, local stream habitats form nested subsets of increasingly landscape scale and habitat size with varying contributions of both alpha and beta diversity for the regional diversity. Here, we aimed to test the relative importance of multiple nested hierarchical levels of spatial scales while determining alpha and beta diversity of caddisflies in regions with different levels of landscape degradation in a core Cerrado area in Brazil. We used quantitative environmental variables to test the hypothesis that landscape homogenization affects the contribution of alpha and beta diversity of caddisflies to regional diversity. We found that the contribution of alpha and beta diversity for gamma diversity varied according to landscape degradation. Sub-catchments with more intense agriculture had lower diversity at multiple levels, markedly alpha and beta diversities. We have also found that environmental predictors mainly associated with water quality, channel size, and habitat integrity (lower scores indicate stream degradation) were related to community dissimilarity at the catchment scale. For an effective management of the headwater biodiversity of caddisfly, towards the conservation of these catchments, heterogeneous streams with more pristine riparian vegetation found within the river basin need to be preserved in protected areas. Additionally, in the most degraded areas the restoration of riparian vegetation and size increase of protected areas will be needed to accomplish such effort. pubtype: Academic Journal doctype: Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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