4 research outputs found

    PRIMEIRO REGISTRO DE SABIÁ-NORTE-AMERICANO (Catharus fuscescens) PARA O ESTADO DO MARANHÃO, NORDESTE DO BRASIL

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    The knowledge and dissemination of biodiversity information contained in the protection areas of Brazil, constitutes a fundamental tool in the conservation of species and nature preservation. Based on this premise, the present study reports the first record of the Catharus fuscescens (Stephens, 1817) for the state of Maranhão, in the municipality of Carolina, between December 2013 and December 2015, where three individuals of the species were captured by means of a mist net. The records were obtained during the rainy season of the Cerrado Biome, in the neighbouring area of the Parque Nacional Chapada das Mesas. These records expands the known distribution area of the species in the national territory.Keywords: Chapada das Mesas National Park; Geographical distribution; Neartic migrant; Occurrence; Tocantins river.O conhecimento e divulgação de informações da biodiversidade contida nas áreas de proteção do Brasil, constitui uma ferramenta fundamental na conservação das espécies e preservação da natureza. Com base nessa premissa, o presente estudo relata o primeiro registro de Catharus fuscescens (Stephens, 1817) para o estado do Maranhão, no município de Carolina, entre dezembro de 2013 e dezembro de 2015, onde três indivíduos da espécie foram capturados por meio de rede de neblina. Os registros foram obtidos durante a estação chuvosa do Bioma Cerrado, nas áreas de influência do Parque Nacional Chapada das Mesas. Esses registros ampliam a área de distribuição conhecida da espécie no território nacional.Palavras chave: Parque Nacional Chapada das Mesas; Distribuição geográfica; Migrante neártico; Ocorrência; Rio Tocantins

    PREDAÇÃO DE Tropidurus oreadicus (REPTILIA, TROPIDURIDAE) POR Heterophrynus sp. (ARACHNIDA, PHRYNIDAE) EM UMA CAVERNA NO PARQUE NACIONAL CHAPADA DAS MESAS, MARANHÃO, BRASIL

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    In the area of the Chapada das Mesas National Park, south of the state of Maranhão, Brazil, the sandstone of the Sambaíba Formation (Triassic) predominate, demonstrating to be an area with potential for the occurrence of groundwater natural cavities. Cavernous ecosystems do not have vegetation cover and light (aphotic). Its trophic resources originate from external physical and biotic agents. The fieldwork found and identified 87 caves and evaluated its degree of relevance, including a biospeleological survey. During the effort, among the representatives of the cave fauna of the park, one of the most common were the amblypygids of the genus Heterophrynus, troglophiles animals, with representatives found in all the tropical and semitropical zones around the world. This group assumes a tertiary or secondary consumer role in the ecosystems where it occurs, with predation records ranging from arthropods to birds such as the hummingbirds (Aves, Trochilidae). One of the Heterophrynus records that deserves prominence, occurred in a cave which is in a region where the predominant vegetation of the surrounding area is the Cerradão. In this cavity, a trophic relationship of predation was recorded between an amblypygid from the Heterophrynus genus and a Tropidurus oreadicus lizard. The importance of registering for biodiversity is mainly related to the characteristics of the amblypygids, which makes up one of the orders of less diverse arachnids.Keywords: Behavior; Amblypygi; Reptile; Conservation Unit.Na área do Parque Nacional da Chapada das Mesas (PNCM), ao sul do estado do Maranhão, Brasil, predominam os arenitos da Formação Sambaíba (Triássico), demonstrando ser uma área com potencial para ocorrência de cavidades naturais subterrâneas. Os ecossistemas cavernícolas não possuem cobertura vegetal e luz (afóticos). Seus recursos tróficos são oriundos de agentes físicos e bióticos externos. O trabalho de campo encontrou e identificou 87 cavernas e avaliou seu grau de relevância, incluindo levantamento bioespeleológico. Durante o esforço, dentre os representantes da fauna cavernícola do parque, um dos mais comuns foram os amblipígios do gênero Heterophrynus, animais troglófilos, com representantes encontrados em todas as zonas tropicais e semitropicais ao redor do mundo. Este grupo assume papel de consumidor terciário ou secundário nos ecossistemas onde ocorre, com registros de predação que variam de artrópodes até aves como o beija-flores (Aves, Trochilidae). Um dos registros de Heterophrynus que merece destaque, ocorreu em uma caverna que está localizada em uma região onde a vegetação predominante do entorno é o Cerradão. Nesta cavidade foi registrada uma relação trófica de predação entre um amblipígio do gênero Heterophrynus e um lagarto Tropidurus oreadicus. A importância do registro para a biodiversidade está relacionada principalmente às características dos amblipígios, que compõe uma das ordens de aracnídeos menos diversas.Palavras chave: Comportamento; Amblipígio; Réptil; Unidade de Conservação

    AMAZONIA CAMTRAP: A data set of mammal, bird, and reptile species recorded with camera traps in the Amazon forest

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    The Amazon forest has the highest biodiversity on Earth. However, information on Amazonian vertebrate diversity is still deficient and scattered across the published, peer-reviewed, and gray literature and in unpublished raw data. Camera traps are an effective non-invasive method of surveying vertebrates, applicable to different scales of time and space. In this study, we organized and standardized camera trap records from different Amazon regions to compile the most extensive data set of inventories of mammal, bird, and reptile species ever assembled for the area. The complete data set comprises 154,123 records of 317 species (185 birds, 119 mammals, and 13 reptiles) gathered from surveys from the Amazonian portion of eight countries (Brazil, Bolivia, Colombia, Ecuador, French Guiana, Peru, Suriname, and Venezuela). The most frequently recorded species per taxa were: mammals: Cuniculus paca (11,907 records); birds: Pauxi tuberosa (3713 records); and reptiles: Tupinambis teguixin (716 records). The information detailed in this data paper opens up opportunities for new ecological studies at different spatial and temporal scales, allowing for a more accurate evaluation of the effects of habitat loss, fragmentation, climate change, and other human-mediated defaunation processes in one of the most important and threatened tropical environments in the world. The data set is not copyright restricted; please cite this data paper when using its data in publications and we also request that researchers and educators inform us of how they are using these data

    Neotropical freshwater fisheries : A dataset of occurrence and abundance of freshwater fishes in the Neotropics

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    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
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