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What governs the functional diversity patterns of fishes in the headwater strea...
Rodrigues-Filho, Carlos Alberto Sousa; Gurgel-Lourenço, Ronaldo César; Lima, Sergio Maia Queiroz; Oliveira, Edson Fontes de; Sánchez-Botero, Jorge IvánThe relationship between functional and taxonomic diversity is a major issue in ecology. Biodiversity in aquatic environments is strongly influenced by environmental gradients that act as dispersion and niche barriers. Environmental conditions act as filters to select functional traits, but biotic interactions also play a role in assemblage structure. In headwater streams, the relationship between functional an...
A multiple hypothesis approach to explain species richness patterns in neotropi...
Vieira, Thiago Bernardi; Pavanelli, Carla Simone; Casatti, Lilian; Smith, Welber Senteio; Benedito, Evanilde; Mazzoni, RosanaSeveral hypotheses are used to explain species richness patterns. Some of them (e.g. species-area, species-energy, environment-energy, water-energy, terrestrial primary productivity, environmental spatial heterogeneity, and climatic heterogeneity) are known to explain species richness patterns of terrestrial organisms, especially when they are combined. For aquatic organisms, however, it is unclear if these hyp...
A multiple hypothesis approach to explain species richness patterns in neotropi...
Vieira, Thiago Bernardi; Pavanelli, C. S.; Casatti, Lilian; Smith, Welber Senteio; Benedito, Evanilde; Mazzoni, Rosana; Sánchez-Botero, Jorge IvánSeveral hypotheses are used to explain species richness patterns. Some of them (e.g. species-area, species-energy, environment-energy, water-energy, terrestrial primary productivity, environmental spatial heterogeneity, and climatic heterogeneity) are known to explain species richness patterns of terrestrial organisms, especially when they are combined. For aquatic organisms, however, it is unclear if these hyp...
Ichthyofauna of the humid forest enclaves in the tablelands of Ibiapaba and Ara...
Rodrigues-Filho, Carlos Alberto de Sousa; Gurgel-Lourenço, Ronaldo César; Bezerra, L. A.V.; Sousa, Wallace Alves de; Garcez, Danielle SequeiraHumid highland forest enclaves are remnants of Atlantic Forest found in tablelands within the Caatinga biome (Northeastern Brazil), which emerged during interglacial periods in the Pleistocene. These ecosystems have a highly diverse and endemic fish fauna. Most earlier surveys have focused on the tableland of Borborema (Pernambuco and Paraíba States). In this study we surveyed the fish fauna of the humid forest...
First record of a male of Kryptolebias Hermaphroditus Costa, 2011 (Cyprinodonti...
Berbel-Filho, Waldir M.; Espírito-Santo, Helder Mateus Viana; Lima, Sergio Maia QueirozDuring an ichthyological survey in September 2015 at the Ceará-Mirim River estuary, Rio Grande do Norte State, northeastern Brazil, we collected a male of Kryptolebias hermaphroditus, a cynolebiid species that had been previously described as containing exclusively self-fertilizing hermaphrodites. This is the first record of a male in this species, over 140 years after the discovery of the mangrove rivulid spec...
Ichthyofauna of Trairí river basin, Rio Grande do Norte state, northeastern Bra...
Medeiros, Lucas Silva de; Ramos, Telton Pedro Anselmo; Silva, Márcio Joaquim da; Paiva, Roney Emanuel Costa de; Lira, Mateus Germano SouzaFishes from the coastal basins of the Mid-Northeastern Caatinga ecoregion (MNCE) were first sampled by the Stanford expedition at the beginning of the 20th century, and published by Edwin C. Starks in 1913. This material included specimens from the Papary lake (= Papari lagoon) in the lower portion of the Trairí river basin, draining towards the eastern coast of Rio Grande do Norte State. In 1941, Henry Fo...
New records and distribution extension of Hyphessobrycon itaparicensis Lima & C...
Brito, Marcelo Fulgêncio Guedes de; Lima, Sergio Maia Queiroz; Berbel Filho, Waldir Miron; Torres, Rodrigo AugustoThe present study reports the first record of the small characid fish Hyphessobrycon itaparicensis Lima and Costa, 2001 in two coastal drainages of Sergipe State, Brazil. This species was collected in three sampling sites from Piauí and Sergipe river basins, both in the hydrographic ecoregion of Northeastern Mata Atlantica. Aspects of habitat, diet composition, phenotypic variation, molecular identification and...