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How are local fish communities structured in Brazilian semiarid headwater streams?

Environmental and spatial factors are known as the main determinants of community variation in aquatic organisms. However, historical factors may interact with local processes to regulate community structure patterns. Here we compared historical, environmental, and spatial factors in a multi-scale approach in order to identify the main drivers structuring species composition and functional diversity of fish com...

Influence of climatic variables on CSR strategies of aquatic plants in a semiar...

Temporary pools in semiarid regions are influenced by climatic seasonality and the extremes of moisture/desiccation effects influence mechanisms for plant survival, which should be analyzed based on competitor (C), ruderal (R), or stress tolerator (S) strategies. The aim of the present study was to evaluate how aridity exerts an influence on CSR functional groups of aquatic plants in temporary pools. Aquatic pl...

Relação entre características limnológicas e abundância de peixes em reservatór...

To evaluate possible nycthemeral and seasonal temporal patterns in fish assemblage associated with limnological aspects and biotic factors in two reservoirs in semarid Northeastern Brazil. Methods: Fish were sampled with gillnets in nycthemeral cycles throughout the dry and rainy season in two reservoirs (Paulo Sarasate/PS and Edson Queiroz/EQ). The stomach contents of the predator species were surveyed. The li...

First report of the alien species trichopodus trichopterus (Pallas, 1770) in th...

Ichthyofauna of the humid forest enclaves in the tablelands of Ibiapaba and Ara...

Humid 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...