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Abstract
Cladocera communities were studied in lotic and lentic environments of the Upper Paraná River floodplain, State of Mato Grosso do Sul, Brazil. A total of 63 species of Cladocera were identified in 108 samples. Of these, 24 species are considered new records for that floodplain, and one is a new record for Brazil. Chydoridae was the most representative family with 19 genera and 39 species.
Highlights
River floodplains are non-equilibrium systems whose ecological integrity depends upon a certain level of disturbance (Ward et al, 1999)
This paper presents data on the composition of the cladoceran fauna collected in the Ivinhema River and Patos Lagoon, located in the Upper Paraná River floodplain, State of Mato Grosso do Sul, and includes new records for the study area and a new record for Brazil
Twenty-four are new records for the Upper Paraná River floodplain, and one is a new record for Brazil
Summary
River floodplains are non-equilibrium systems whose ecological integrity depends upon a certain level of disturbance (Ward et al, 1999). These environments, strongly influenced by water level fluctuations, are heterogeneous landscapes with high biological diversity. Multidisciplinary studies have shown that this remnant floodplain retains high biodiversity and that it is fundamental in maintaining those species already eliminated from the other areas of the Paraná River basin (Agostinho & Zalewski, 1996; Paggi, in press). Numerical data on the Cladocera fauna of Neotropical river floodplain systems are still too few and most studies have considered primarily pelagic species. The preliminary biogeographical synthesis of the Neotropical Cladoceran fauna given by Paggi (1993, 1995) points out the basic features of this fauna:
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Schedule a callMore From: Brazilian journal of biology = Revista brasleira de biologia
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