Abstract Understanding how different environmental factors influence species occurrence is a key issue to address the study of natural populations. However, there is a lack of knowledge on how local traits influence the microhabitat use of tropical arboreal lizards. Here, we investigated the microhabitat selection of the poorly known lizard Tropidurus lagunablanca (Squamata: Tropiduridae) and evaluated how environmental microhabitat features influence animal’s presence. We used a Resource Selection Function approach, in a case/control design where we analyzed the effect of substrate temperature and tree’s diameter at breast height (DBH) in the probability of presence of lizards using mixed Conditional Logistic Regression. We found that T. lagunablanca uses trees with DBH from 0.40 m to 4 m and substrate temperatures ranging from 25.9°C to 42°C. Moreover, we showed that thickness of the trees and substrate temperatures significantly increased the probability of presence of T. lagunablanca individuals, being the probability of presence higher than 50% for trees up to 1.5 m DBH and temperature of substrate up to 37.5°C. Our study probed that T. lagunablanca individuals choose trees non-randomly, selecting thicker and warmer tree trunks. This information advances the knowledge of the spatial ecology of Neotropical arboreal lizards and is relevant for conservation, putting an emphasis on preserving native vegetation in the Pantanal.

Resumo Embora o estado de São Paulo tenha uma das faunas de anfíbios mais bem conhecidos do Brasil, existem áreas protegidas cuja composição de espécies ainda é desconhecida. Aqui, nós apresentamos a primeira lista de espécies de anfíbios anuros para o Parque Estadual de Vassununga. A área é um dos últimos remanescentes de Mata Atlântica Semidecidual e Cerrado no nordeste do estado de São Paulo, sudeste do Brasil. Para o inventário das espécies nós visitamos seis locais (duas lagoas, dois córregos, e duas trilhas) em dezembro, janeiro e fevereiro de 2014-2015 e 2015-2016, totalizando 18 dias de amostragens de campo em cada local. Nós registramos 24 espécies de anuros pertencentes a quatro famílias: Bufonidae (2 espécies), Hylidae (11 espécies), Leptodactylidae (10 espécies) e Microhylidae (1 espécie). A anurofauna consistiu principalmente de espécies generalistas e amplamente distribuídas. Embora nenhuma das espécies registradas esteja ameaçada de extinção segundo a IUCN, quatro espécies estão em declínio populacional e outras três espécies têm tendência populacional desconhecida.

Abstract Although São Paulo state has one of the best known amphibian fauna in Brazil, there are still protected areas for which the species composition remains unknown. Here, we present the first species list of anuran amphibians in Vassununga State Park. This area is one of the last remnants of semideciduous Atlantic Forest and Cerrado in the northeastern region of São Paulo state, southeastern Brazil. To survey species, we visited six sites (two ponds, two streams, and two transects) in December, January, and February of 2014-2015 and 2015-2016, totalizing 18 days of field samplings at each site. We recorded 24 anuran species belonging to four families: Bufonidae (2 species), Hylidae (11 species), Leptodactylidae (10 species), and Microhylidae (1 species). Anurans consist mainly of generalist and widely distributed species. Although none of the species recorded are threatened with extinction according to the International Red List of Endangered Species (IUCN), four species have declining population and another three species have unknown population trends.