Use of functional traits to assess changes in stream fish assemblages across a habitat gradient

Autor(es)

Ribeiro, Mariela Domiciano ^[1] ; Teresa, Fabricio Barreto ^[2] ; Casatti, Lilian ^[1]

Afiliação do(s) autor(es)

^[1] Univ Estadual Paulista, UNESP, Lab Ictiol, Dept Zool & Bot, IBILCE, Rua Cristovao Colombo 2265, BR-15054000 Sao Jose Do Rio Preto, SP - Brazil

^[2] Univ Estadual Goias, Unidade Univ Ciencias Exatas & Tecnol, Rodovia BR 153, 3-105, Caixa Postal 459, BR-75132903 Anapolis, Go - Brazil

• Tipo de documento: Artigo Científico
• Fonte: Neotropical Ichthyology; v. 14, n. 1 2016.
• Citações Web of Science: 12

Resumo

Abstract Functional traits are important for understanding the links between species occurrence and environmental conditions. Identifying these links makes it possible to predict changes in species composition within communities under specific environmental conditions. We used functional traits related to habitat use and trophic ecology in order to assess the changes in fish community composition between streams with varying habitat structure. The relationship between the species traits and habitat characteristics was analyzed using an RLQ ordination analysis. Although species were widely distributed in habitats with different structures, physical conditions did favor some species based on their functional characteristics. Eight functional traits were found to be associated with stream habitat structure, allowing us to identify traits that may predict the susceptibility of fish species to physical habitat degradation. (AU)

• Processo FAPESP: 01/13340-7 - Avaliação da integridade biótica dos riachos da região Noroeste do estado de São Paulo, bacia do Alto Paraná, utilizando comunidades de peixes
• Beneficiário: Lilian Casatti
• Modalidade de apoio: Auxílio à Pesquisa - Programa BIOTA - Jovens Pesquisadores
• Processo FAPESP: 10/13923-1 - A diversidade morfológica da ictiofauna reflete a estrutura do habitat em riachos?
• Beneficiário: Mariela Domiciano Ribeiro
• Modalidade de apoio: Bolsas no Brasil - Mestrado