The Neotropical region hosts 4225 freshwater fish species, ranking first among the world's most diverse regions for freshwater fishes. Our NEOTROPICAL FRESHWATER FISHES data set is the first to produce a large‐scale Neotropical freshwater fish inventory, covering the entire Neotropical region from Mexico and the Caribbean in the north to the southern limits in Argentina, Paraguay, Chile, and Uruguay. We compiled 185,787 distribution records, with unique georeferenced coordinates, for the 4225 species, represented by occurrence and abundance data. The number of species for the most numerous orders are as follows: Characiformes (1289), Siluriformes (1384), Cichliformes (354), Cyprinodontiformes (245), and Gymnotiformes (135). The most recorded species was the characid Astyanax fasciatus (4696 records). We registered 116,802 distribution records for native species, compared to 1802 distribution records for nonnative species. The main aim of the NEOTROPICAL FRESHWATER FISHES data set was to make these occurrence and abundance data accessible for international researchers to develop ecological and macroecological studies, from local to regional scales, with focal fish species, families, or orders. We anticipate that the NEOTROPICAL FRESHWATER FISHES data set will be valuable for studies on a wide range of ecological processes, such as trophic cascades, fishery pressure, the effects of habitat loss and fragmentation, and the impacts of species invasion and climate change. There are no copyright restrictions on the data, and please cite this data paper when using the data in publications.
Animal communication is related to many biological processes, and its investigation may help elucidate many aspects of an organism. If in the one hand, animal communication might be seen as a biological process, in the other, sound is a physical phenomenon, so that the understanding of animal communication depends on processes that go beyond biology itself. Here we aim to interlace concepts of Physics, Ecology, and communication to better operationalize the concept of acoustic niche. The study of the relationships between the communication problems (i.e. transmission, semantics and effectiveness), the physical properties of sound (frequency, intensity and time), and ecological aspects of communication, permits a better understanding of the acoustic niche and its evolution.
ResumoA Reserva Particular do Patrimônio Natural Fazenda Pacatuba está localizada na porção baixa da bacia do rio Paraíba do Norte, um dos últimos remanescentes de Mata Atlântica no norte do rio São Francisco. Juntamente com a floresta de Jacuípe e a Reserva Biológica de Guaribas, é considerada uma área de importância biológica ainda desconhecida e prioritária para a conservação da biodiversidade no Nordeste. Assim, o presente estudo teve como objetivo analisar a ictiofauna da reserva e seu entorno, a fim de contribuir para os dados sobre a distribuição das espécies de peixes da Mata Atlântica do Nordeste e para o conhecimento de sua biodiversidade. Foram coletados 1.005 exemplares em cinco pontos amostrais, distribuídos em 6 ordens, 11 famílias, 16 gêneros e 21 espécies de peixes de água doce.Palavras-chave: Peixes, Mata Atlantica, Riachos, Conservação. AbstractThe Private Natural Heritage Reserve Pacatuba Farm is located in the Paraíba do Norte river low basin, one of the last remnants of Atlantic Forest in the north of the São Francisco river. Together with Jacuípe forest and Guaribas Biological Reserve, it is considered an area of biological importance still unknown and priority for the biodiversity conservation in the Northeast. Thus, the present study aimed to analyze the icthyofauna from the reserve and its surroundings in order to contribute to the data on the fish species distribution in the Northeastern Atlantic Forest and to the knowledge of its biodiversity. It was collected a total of 1.005 specimens at five sampling sites, which are distributed over 6 orders, 11 families, 16 genera and 21 species of freshwater fish.Keywords: Fish, Atlantic Forest, Streams, Conservation. ResumoLa Reserva Particular del Patrimonio Natural Fazenda Pacatuba está ubicada en la Cuenca Baja del río Paraíba do Norte, uno de los últimos remanentes de Mata Atlántica al norte del río São Francisco. Junto con el bosque de Jacuípe y la Reserva Biológica de Guaribas, esta reserva se considera un área de importancia biológica aún desconocida y prioritaria para la conservación de la biodiversidad en el Nordeste del Brasil. Así, el presente estudio tuvo como objetivo investigar la ictiofauna de la reserva y su entorno, a fin de contribuir con datos sobre la distribución de las especies de peces de la Mata Atlántica del Nordeste y para el conocimiento de su biodiversidad. Fueran recolectados 1.005 ejemplares en cinco puntos de muestreo, agrupados en 6 órdenes, 11 familias, 16 géneros y 21 especies de peces de agua dulce.Palabras claves: peces, Mata Atlántica, arroyos, conservación
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