4 documents found, page 1 of 1
Large-scale Degradation of the Tocantins-Araguaia River Basin
Pelicice, Fernando Mayer; Agostinho, Angelo Antonio; Akama, Alberto; Andrade Filho, José Dilermando; Azevedo-Santos, Valter M. [UNESP]Made available in DSpace on 2022-04-28T19:42:34Z (GMT). No. of bitstreams: 0 Previous issue date: 2021-10-01; The Tocantins-Araguaia Basin is one of the largest river systems in South America, located entirely within Brazilian territory. In the last decades, capital-concentrating activities such as agribusiness, mining, and hydropower promoted extensive changes in land cover, hydrology, and environmental condit...
Stream fish metacommunity organisation across a Neotropical ecoregion: The role...
Borges, Pedro Paulino; Dias, Murilo Sversut; Carvalho, Fernando Rogério; Casatti, Lilian [UNESP]; Pompeu, Paulo Santos; Cetra, MauricioMade available in DSpace on 2020-12-12T02:42:33Z (GMT). No. of bitstreams: 0 Previous issue date: 2020-05-01; Understanding how assemblages are structured in space and the factors promoting their distributions is one of the main goals in Ecology, however, studies regarding the distribution of organisms at larger scales remain biased towards terrestrial groups. We attempt to understand if the structure of stream...
Trends in studies of Brazilian stream fish assemblages
Dias, Murilo Sversut; Zuanon, Jansen; Couto, Thiago B. A.; Carvalho, Marla S.; Carvalho, Lucélia Nobre; Espírito-Santo, Helder Mateus VianaStudies about fish assemblages in Brazilian streams have grown in recent years, however, it remains unclear whether this increase is followed by increments in the diversity of addressed topics and theoretical frameworks adopted by researchers. We performed a systematic search for Brazilian studies on stream fish assemblages recording study region, publication year, objectives, and spatial and temporal scales ad...
Unexpected fish diversity gradients in the Amazon basin
Oberdorff, Thierry; Dias, Murilo Sversut; J?z?quel, C?line; Albert, James Spurling; Arantes, Caroline Chaves; Bigorne, RémyUsing the most comprehensive fish occurrence database, we evaluated the importance of ecological and historical drivers in diversity patterns of subdrainage basins across the Amazon system. Linear models reveal the influence of climatic conditions, habitat size and sub-basin isolation on species diversity. Unexpectedly, the species richness model also highlighted a negative upriver-downriver gradient, contrary ...