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Item Population ecology of the freshwater turtle Mesoclemmys vanderhaegei (Testudines: Chelidae)(Herpetological Conservation and Biology, 2018-07-31) Brito, Elizângela Silva; Vogt, Richard Carl; Valadão, Rafael Martins; França, Leonardo Fernandes; Penha, Jerry Magno Ferreira; Strüssmann, ChristineWe sampled Mesoclemmys vanderhaegei in the Upper Paraguay River Basin, in the Cerrado ecosystem of Central Brazil. Populations were sampled between 2010 and 2013, and we used capture-mark-recapture methods to determine the catchability, density, population size structure, and sex ratio of the populations. We sampled two protected areas (Chapada dos Guimarães National Park [CGNP] and Serra das Araras Ecological Station [SAES]) and we captured 300 individuals (77 at CGNP and 223 at SAES) and made 343 recaptures in the two areas. Some individuals were recaptured more than once. We estimated population sizes to be 90 turtles at CGNP and 245 turtles at SAES. Sex ratio was not significantly different from 1:1 at CGNP, whereas at SAES there were more females than males. The population structure varied significantly between the two sampled populations with carapace lengths of turtles at CGNP normally distributed but not at SAES. Although both areas occur within the same ecosystem and are close to each other (180 km straight line distance), the populations possessed distinct demographic characteristics, possibly resulting from local patterns of environmental conditions and biological interactions.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 New records and distribution extension of Acanthochelys macrocephala (Rhodin, Mittermeier & McMorris 1984) in midwestern Brazil.(Cuad. herpetol., 2023) Dorado-Rodrigues, Tainá Figueras; Brito, Elizângela Silva; Silva, Karoline Rodrigues; Valadão, Rafael Martins; Cunha, Fábio Andrew Gomes; Strüssmann, ChristineItem 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)Item Roteiro para Inventários e Monitoramentos de Quelônios Continentais(Biodiversidade Brasileira, 2016) Balestra, Rafael Antônio Machado; Valadão, Rafael Martins; Vogt, Richard Carl; Bernhard, Rafael; Ferrara, Camila Rudge; Brito, Elizângela Silva; Arias, Robinson Botero; Malvásio, Adriana; Lustosa, Ana Paula Gomes; Souza, Franco Leandro de; Drummond, Gláucia Moreira; Bassett, Luis Antônio Bochetti; Bernhard, Rafael; Lustosa, Ana Paula Gomes; Souza, Franco Leandro de; Drummond, Gláucia Moreira; Bassetti, Luis Antônio Bochetti; Coutinho, Marcos Eduardo; Ferreira Junior, Paulo Dias; Campos, Zilca Maria da Silva; Mendonça, Sônia Helena Santesso Teixeira de; Rocha, João da Mata Nunes; Luz, Vera Lúcia FerreiraEm razão da falta de material específico de consulta que consolide as principais referências científicas e o acúmulo do conhecimento técnico sobre as metodologias de amostragem, coleta e análise de dados relativos aos quelônios continentais brasileiros, materializou-se este trabalho, há muito almejado pela sociedade interessada no assunto. Houve um grande esforço para compatibilizar metodologicamente as particularidades das espécies e ambientes em áreas com lacunas de amostragem, cujos parâmetros se adequam prioritariamente aos inventários e, em áreas com ocorrência conhecida de espécie(s) alvo de estudos de maior duração, aos monitoramentos populacionais. Sendo assim, essencialmente, este guia metodológico ou manual técnico inédito se constitui em roteiros de procedimentos fundamentados pela consolidação do estado da arte do conhecimento técnico-científico e pelas perspectivas, harmonizadas, dos principais grupos de pesquisa e entidades conservacionistas que atuam com esses animais. Essa iniciativa é oportuna, pois favorecerá a tão esperada padronização instrumental e analítica, segundo orientações validadas pelas experiências práticas dos autores, a serem adotados de forma consonante por diversas instituições ou grupos de pesquisa. Em consequência, poder-se-á integrar diferentes bancos de dados, compilar informações de séries históricas de dados de projetos correlatos, e assim, desenvolver análises comparativas das variáveis decorrentes dos componentes de pesquisa e conservação realizados de forma sistematizada por espécie, família, região, bioma etc., por meio de diferentes fontes de informação. E ainda, esta publicação tem o propósito de estimular a realização de estudos de caracterização do estado de conservação do grupo animal foco, especialmente em áreas protegidas, por meio da promoção de pesquisas básicas relativas à dinâmica de suas populaçõesItem Atropelamentos de vertebrados silvestres em quatro rodovias no Cerrado, Mato Grosso, Brasil.(Multi-Science Journal,, 2018) Valadão, Rafael Martins; Bastos, Lilian Freitas; de Castro, Carolina PötterForam avaliadas a magnitude, composição e padrões da mortalidade de vertebrados silvestres, a partir da colisão com veículo em estradas no Cerrado. Mesmo sendo próximas, estas diferem no tempo em que estão pavimentadas, volume de tráfego, paisagem e qualidade da cobertura asfáltica. Quatro trechos de 70 km de extensão localizados no Cerrado do sudoeste do estado de Mato Grosso foram amostrados mensalmente em junho de 2009 a maio de 2010, por dois observadores em um veículo com velocidade média de 40km/h. Sendo percorridos 840km por rodovia e 2.520km no total. Quando as carcaças eram avistadas o veículo era parado para que os dados sobre o animal fossem amostrados. Os dados de riqueza de espécies, número de indivíduos atropelados e por característica de faixa central da rodovia foram submetidos aos testes de Shapiro-Wilk, para testar normalidade, e ao de Bartlett para testar homocedasticidade. Para os dados que não apresentaram normalidade e/ou homocedasticidade, foi utilizado o teste não paramétrico de Kruskall-Wallys associado ao teste LSD. Onde os dados apresentaram os pressupostos de normalidade e homocedasticidade dos resíduos, foi realizado Anova (one way) juntamente com o teste de Tukey para averiguar diferenças entre os resultados obtidos. Foram registradas 483 mortes de 108 spp. Dos indivíduos atropelados nestas quatro rodovias, 7% são anfíbios, 15% répteis, 11% aves e 67% de mamíferos. Este trabalho apresenta dados suficientes para que medidas sejam tomadas nas rodovias que apresentaram altos índices de atropelamento, detectando quais espécies são mais afetadas, com isso se tem dados suficientes que embasem tomadas de decisão com o intuito de conservar a fauna silvestre.Item New records and geographic distribution map of Elachistocleis magnus Toledo, 2010 (Anura: Microhylidae)(Check List, 2012-05-01) Strüssmann, Christine; Campos, Vitor Azarias; Rodrigues, Tainá Figueras Dorado; Almeida, Carlos Henrique L. N.; Toledo, Luís Felipe; Hoogmoed, Marinus Steven; Valadão, Rafael MartinsNew locality records and distribution map for the recently described Elachistocleis magnus are here presented. Originally described from Rondônia state, western Brazil (Amazonia), E. magnus was until now recorded for only two additional localities in the same state. The new records presented herein, which considerably enlarge the known range of the species, include three additional Brazilian states – Amazonas, Pará, and Mato Grosso (including records in the Brazilian Cerrado). We provide color description of the species in life, and discuss variation in habitats used by this species.Item New locality records, geographical distribution, and morphological variation in Cercosaura parkeri (Ruibal, 1952) (Squamata: Gymnophthalmidae) from western Brazil.(Check List, 2012-11-01) Barreto, Débora Soares; Valadão, Rafael Martins; Nogueira, Cristiano; de Castro, Carolina Potter; Ferreira, Vanda Lúcia; Strüssmann, ChristineThe presence of the gymnophthalmid lizard Cercosaura parkeri (Ruibal, 1952) in western Brazil is confirmed, based on vouchered records for localities in the states of Mato Grosso and Mato Grosso do Sul. Morphological variation in a series of 20 males and 17 females is also presented.Item Assessing Brazilian turtles’ vulnerability BY USING species distribution models AND dispersal constraints(Biodiversity and Conservation, 2024-01-27) Pinto, Hugo Bonfim de Arruda; Valadão, Rafael Martins; Andrade, André Felipe Alves de; Batista, Flavia Regina de Queiroz; Marco Júnior, Paulo DeMost assessments of the conservation status of Brazilian turtles use the IUCN geographic range criteria performed by the Minimum Convex Polygon (MCP). This technique often leads to over- or under-estimating the geographic distribution of rare, vulnerable, or endangered species. We aimed to demonstrate that using Species Distribution Models (SDM) on the geographic range assessment of turtles could be more accurate than using the minimum polygon convex. We reduced overestimation of species’ extent of occurrence by adding dispersal constraints, which avoids under- or over-estimating the impact of threatening events. The extent of occurrence derived from MCP was 31% higher than SDM on average, ranging from 4 to 311% higher. Using remaining habitat variables, we found that habitat loss within the predicted extent of occurrence increased by 79% from 1985 to 2019, and inferred population fragmentation increased by 161%. The distribution of turtles Acanthochelys radiolata, Acanthochelys spixii, Hydromedusa maximiliani, Hydromedusa tectifera, Mesoclemmys vanderhaegei, Phrynops williamsi, and Ranacephala hogei is severely fragmented, with most of their extent of occurrence being split into patches that are unavailable to the species persistence. Our findings highlight the importance of using SDM combined with dispersal constraints, which may further benefit from future information about the dispersal capacity of turtles. Furthermore, adding environmental layers to this combination makes it possible to discuss processes affected by habitat fragmentation, such as the fragmentation of species populations, an aspect essential to evaluate population viability and local extinctions.Item Phylogenetic analysis of chelonian hemogregarines reveals shared species among the Amazonian freshwater turtle Podocnemis spp. and provides a description of two new species of Haemogregarina.(Parasitology Research, 2022-01-21) Correa, Jamille Karina Coelho; Picelli, Amanda Maria; da Silva, Maria Regina Lucas; Valadão, Rafael Martins; Hernández-Ruz, Emil José; Viana, Lúcio AndréThis study describes two new species of the genus Haemogregarina living in the Amazonian freshwater turtles Podocnemis expansa and Podocnemis sextuberculata. Haemogregarina species isolated from P. expansa have been characterized by the presence of encapsulated, folded immature gamonts, with the parasitophorous vacuole and fragmented chromatin located in the central region. In Haemogregarina found in P. sextuberculata, curved immature gamonts were observed inside a parasitophorous vacuole, with small, slightly arched meronts with rounded nuclei, and mature gamonts with trapezoid-shaped condensed nuclei. The novel 18S rRNA sequences obtained in this study clustered within a well-supported clade composed of hemogregarines isolated from other neotropical freshwater turtles from the families Podocnemididae and Geoemydidae. The hemogregarines found in this study were compared to Haemogregarina podocnemis from Podocnemis unifilis and Haemogregarina sp. from Podocnemis expansa, based on morphological, morphometric, and molecular data. The analysis supports the new species Haemogregarina karaja sp. nov. isolated from P. expansa and Haemogregarina embaubali sp. nov. found in P. sextuberculata.