RAN
URI permanente desta comunidadehttps://bdc.icmbio.gov.br/handle/cecav/1401
Centro Nacional de Pesquisa e Conservação de Répteis e Anfíbios
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3 resultados
Resultados da Pesquisa
Item New records of Mesoclemmys raniceps (Testudines, Chelidae) for the states of Amazonas, Pará and Rondônia, North Brazil, including the Tocantins basin.(Herpetology Notes, 2019-02-18) Brito, Elizângela Silva; Valadão, Rafael Martins; Cunha, Fábio Andrew Gomes; Araújo, Cristiane Gomes de; Viana, Patrik Ferreira; Fernandes, Izaias MédiceOf the 58 species of living Chelidae (Rhodin et al.,2017), 20 are known from Brazil (Costa and Bérnils,2018). Of these, nine occur in the Amazon basin,including species of the genera Chelus, Mesoclemmys,Platemys, Phrynops and Rhinemys (Ferrara et al., 2017).The genus Mesoclemmys is the most diverse in Brazil, and five of the eight species of Mesoclemmys in Brazil occur within the Amazon basin (Souza, 2005; Ferrara et al., 2017). Species of genus Mesoclemmys are rare and inconspicuous when compared to other freshwater turtles, and live in hard-to-reach places, to extent that populations are rarely studied. This genus represents the least studied among Amazonian turtles (Vogt, 2008; Ferrara et al., 2017).Item Natural history, coloration pattern and conservation status of the threatned South Brazilian red bellied toad, Melanophryniscus macrogranulosus Braun, 1973 (Anura, Bofonidae).(Herpetology Notes, 2014-10-25) Caorsi, Valentina Zaffaroni; Colombo, Patrick; Freire, Marcelo Duarte; Amaral, Ivan Borel; Zank, Caroline; Borges-Martins, Márcio; Grant, TaranEfforts to find and gather data on natural history, including geographic records, of species considered threatened are an important tool to assess and update its conservation status. Little is known about the threatened South American red belly toad, Melanophryniscus macrogranulosus, endemic from northeastern Rio Grande do Sul, southern Brazil. The main goal of this article is to provide information on natural history, geographic distribution, morphology and conservation of this toad, including new geographic records, and new data on color pattern, habitat use, and reproductive and defensive behavior. We conducted 30 field expeditions from 2005 to 2013 to the type locality and surroundings and examined the three major herpetological collections from Rio Grande do Sul. We described the live color pattern of juveniles and adults. The data on reproductive and defensive behavior was obtained in the field. We rediscovered the species on its type locality, after 45 years from previous records, and revealed the presence of M. macrogranulosus in five new localities. The color pattern varies ontogenetically from metamorphosed juveniles to adults. Newly metamorphosed individuals have dark gray dorsum and pale, partially translucent ventral surface. Adults have dorsum from light to dark green and ventral surface exhibiting a green or grayish blue coloration pattern with white spots and red patches. Associated with this suspected aposematic coloration we observed individuals employing unken reflex when disturbed. Reproductive activity was recorded after heavy rains in all four seasons. Males call during day and night, in small, shallow pools along temporary streams with clear water. Amplexus and struggles between males also involving a female were registered inside the water in the reproductive site. All records of M. macrogranulosus are inside the limits of the Atlantic forest, considered one of the most endangered Biome of Brazil. However, none is inside the limits of a protected area. Some possible threats observed include fragmentation and habitat destruction, pollution (improper discard of human waste) and the recent duplication of a paved road near the reproductive site. These impacts associated with the small extent of occurrence, justify the species category as Endangered (EN).Item Reptilia, Squamata, Amphisbaenidae, Amphisbaena brasiliana (Gray, 1865): range extension.(Herpetology Notes, 2013) Dorado-Rodrigues, Tainá Figueras; Strüssmann, Christine; Lima, Francco Antonio Neri de Souza e; Valadão, Rafael Martins; Motta, TamíAmphisbaena brasiliana is a Brazilian endemic amphisbaenid (Bérnils and Costa, 2012) described after a single specimen obtained in the municipality of Santarém, state of Pará (Gray, 1865: 448). Besides the type locality and vicinities (Gans, 1971; Spencer, 2012), thespecies is known from other three municipalities in the same state: Belém (Gans, 1971), Aveiro (Rio Cupari; Strauch, 1883) and Parauapebas (" Serra dos Carajás " ; Cunha et al., 1985). Two vouchered but imprecise additional records from localities along the " rio Amazonas " (Amazon River), and one undocumented record for Paraíba do Norte, state of Paraíba, were mentioned by Gans (1971), but this latter record was considered by that author as " questionable ". The species has also been found in Guarantã do Norte, extreme north of the state of Mato Grosso (Mott and Vieites, 2009; Pinna et al., 2010), the southernmost record until now. Herein we report three new municipality records for Amphisbaena brasiliana in the states of Pará and Mato Grosso which greatly extend the known distribution of this species. In addition, we provide data on habitats and a photo of a live specimen. Specimens were collected under IBAMA/SISBIO permits # 02001.000822/2008-71 and # 19518-1, and voucher specimens are deposited at Coleção Zoológica de Vertebrados, Universidade Federal de Mato Grosso (UFMT; Cuiabá, Mato Grosso, Brazil). Records accessed through the HerpNET (Spencer, 2012) data portal are held in the Museum of Comparative Zoology (Harvard University, Cambridge, Massachusetts, USA). In December 2006, a single individual of Amphisbaena brasiliana (UFMT 7785) was found in a semi-deciduous forest in the right margin of the reservoir of the hydroelectric power plant Cabeça de Boi, rio Cabeça de Boi, municipality of Alta Floresta, Mato Grosso (10º 19' S, 56º 58' W). In October 2009, another individual (UFMT 8477) was found in an alluvial semi-deciduous forest on the left margin of the reservoir of Herpetology Notes, volume 6: XXX-XXX (2013) (published online on XX Xxxx 2013)