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Fish complementarity is associated to forests in Amazonian streams Neotropical Ichthyology
Bordignon,Carolina Rodrigues; Casatti,Lilian; Pérez-Mayorga,María Angélica; Teresa,Fabrício Barreto; Brejão,Gabriel Lourenço.
The functional structure of communities is commonly measured by the variability in functional traits, which may demonstrate complementarity or redundancy patterns. In this study, we tested the influence of environmental variables on the functional structure of fish assemblages in Amazonian streams within a deforestation gradient. We calculated six ecomorphological traits related to habitat use from each fish species, and used them to calculate the net relatedness index (NRI) and the nearest taxon index (NTI). The set of species that used the habitat differently (complementary or overdispersed assemblages) occurred in sites with a greater proportion of forests. The set of species that used the habitat in a similar way (redundant or clustered assemblages)...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Amazon Forest; Conservation; Ecomorphology; Functional diversity; Habitat use.
Ano: 2015 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252015000300579
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Identification key for fishes from coastal streams of the Atlantic forest of southeastern Brazil Biota Neotropica
Gonçalves,Cristina da Silva; Carvalho,Fernando Rogério; Pérez-Mayorga,María Angélica; Oliveira,Isadora Francesconi de.
Abstract In recent decades, current knowledge about fish from Neotropical streams has greatly increased, but is still deficient. Here we present an identification key for fishes from coastal freshwater streams from a large conservation area of Atlantic rainforest of southeastern Brazil, including 39 species. Considering that most of these species (61.2%) are endemic to the coastal streams, this identification key will be useful not only for the species recognition of the sampled area, but also for the surrounding coastal region.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Taxonomy; Endemic and endangered fishes; Neotropical streams; Juréia-Itatins Ecological Station.
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032017000400801
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Stream fish from recently deforested basins in the Meridional Amazon, Mato Grosso, Brazil Biota Neotropica
Casatti,Lilian; Brejão,Gabriel Lourenço; Carvalho,Fernando Rogério; Silva,Hugmar Pains da; Pérez-Mayorga,María Angélica; Manzotti,Angelo Rodrigo; Zeni,Jaquelini de Oliveira; Ramires,Bruno Martins Santos; Langeani,Francisco.
Abstract: The replacement of tropical forests to production systems is one of the leading causes of riverine ecosystem alterations. However, current assemblages’ composition may also result from the time since these transformations have begun. Therefore, the knowledge of diversified historical scenarios can facilitate the accomplishment of actions that involve the aquatic environments recovery. In this study, an inventory of stream fish was carried out in basins whose deforestation was intensified in the last 20 years, to compose a baseline for ecological and taxonomic studies. The habitat, physical and chemical variables, and the fish assemblages from 60 streams in the northwest region of the state of Mato Grosso, in the Aripuanã and Juruena river basins,...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Inventory; Neotropical ichthyofauna; Deforestation; Baseline; Characidae.
Ano: 2020 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032020000100309
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