Habitat architecture influencing microcrustaceans composition: a case study on freshwater Cladocera (Crustacea Branchiopoda)

Autor(es)

Debastiani-Junior, J. R. ^[1] ; Elmoor-Loureiro, L. M. A. ^[2] ; Nogueira, M. G. ^[1]

Afiliação do(s) autor(es)

^[1] Univ Estadual Paulista, UNESP, Dept Zool, Dist Rubiao Jr S-N, BR-18618970 Botucatu, SP - Brazil

^[2] Univ Catolica Brasilia, Lab Biodiversidade Aquat, QS 7 Lote 1, Sala M204, BR-71966700 Taguatinga, DF - Brazil

• Tipo de documento: Artigo Científico
• Fonte: Brazilian Journal of Biology; v. 76, n. 1, p. 93-100, FEB 2016.
• Citações Web of Science: 2

Resumo

Environmental complexity is considered a key factor for diversity enhancement in aquatic ecosystems. Macrophyte stands are a major contributor for this complexity due to their differential architectures. Nevertheless, the influence of distinct aquatic habitat architectures (with different types of macrophytes or without them) on microcrustaceans' taxa composition, usually found in macrophyte colonized water bodies, is underexplored in limnological studies. The main objective of this study was to analyze this influence by comparing the Cladocera composition among four habitat architectures: (1) fluctuant macrophytes, (2) rooted emergent macrophytes, (3) submerged macrophytes and (4) the limnetic zone of oxbow lakes associated to a large subtropical reservoir. Wide compositional variation was observed. Fluctuant macrophytes exhibited the richest Cladocera assemblage, dominated by Chydoridae. Submerged and rooted emergent macrophytes had the most similar assemblages between them. The most distinctive fauna was found in the limnetic zone, dominated by Bosminidae. Probable differences in resource availability in each sampled habitat architecture are considered as the driving factor for the Cladocera composition variation. We concluded that for a complete inventory of a given local fauna, it is imperative to take into account the aquatic habitat architecture, including macrophyte stands, in the data sampling design. (AU)

• Processo FAPESP: 09/11781-8 - A importância das áreas alagáveis associadas aos reservatórios da bacia do rio da prata (argentina, brasil, paraguai e uruguai) para a diversidade da fauna de cladocera (crustacea branchiopada)
• Beneficiário: Jose Roberto Debastiani Júnior
• Linha de fomento: Bolsas no Brasil - Mestrado
• Processo FAPESP: 11/23444-6 - Diversidade das assembleias de cladóceros (Crustacea, Branchiopoda) de áreas adjacentes a trechos lóticos e reservatórios da Bacia do Rio da Prata (Argentina, Brasil, Paraguai e Uruguai)
• Beneficiário: Jose Roberto Debastiani Júnior
• Linha de fomento: Bolsas no Brasil - Doutorado Direto
• Processo FAPESP: 09/00014-6 - Estudo limnológico dos grandes reservatórios da bacia hidrográfica do Rio da Prata (Brasil, Argentina, Paraguai e Uruguai): uma abordagem espacial geográfica e a influência de processos atuais e históricos
• Beneficiário: Marcos Gomes Nogueira
• Linha de fomento: Auxílio à Pesquisa - Regular