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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Functional differentiation between fish assemblages from forested and deforested streams

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Author(s):
Teresa, Fabricio Barreto [1] ; Casatti, Lilian [2] ; Cianciaruso, Marcus Vinicius [3]
Total Authors: 3
Affiliation:
[1] Univ Estadual de Goias, Programa Posgrad Recursos Nat Cerrado, BR-74132400 Anapolis, Go - Brazil
[2] Univ Estadual Paulista UNESP, Lab Ictiol, Dept Zool & Bot, IBILCE, BR-15054000 Sao Jose Do Rio Preto, SP - Brazil
[3] Univ Fed Goias UFG, Lab Ecol & Funcionamento Comunidades, Dept Ecol, ICB, BR-74605220 Goiania, Go - Brazil
Total Affiliations: 3
Document type: Journal article
Source: Neotropical Ichthyology; v. 13, n. 2, p. 361-370, APR-JUN 2015.
Web of Science Citations: 19
Abstract

We tested the hypothesis that streams in deforested areas shelter different fish communities to nearby forested areas, and that these disparities are due to environmental parameters that limit or benefit different species according to their functional traits. We compared the community composition of three south east Brazilian streams flanked by riparian forest with three nearby streams in deforested areas. The following functional traits were considered: diet, habitat use, water flow preference, size, and hypoxia tolerance. Differentiation between forested and deforested streams corresponded with the different contributions of three functional groups. Species reported in the literature to be hypoxia tolerant, and exhibiting a variable combination of the other traits prevailed in deforested streams, although we did not find substantial differences in oxygen levels between forested and deforested streams. In forested streams, benthic species associated with a high water flow and an insectivorous diet were dominant. Changes in streams induced by deforestation which are associated with habitat availability, food resources, and physicochemical conditions appear to restrict the occurrence of specialized species and instead benefit tolerant generalists. (AU)

FAPESP's process: 08/03583-9 - Composition and functional diversity of stream fish assemblages
Grantee:Fabrício Barreto Teresa
Support Opportunities: Scholarships in Brazil - Doctorate