Amphibians
Mostrando 1-12 de 235 artigos, teses e dissertações.
-
1. Chemical Constituents and Cytotoxic Activity of Rhinella jimi (Anura: Bufonidae)
Rhinella jimi toads (Stevaux, 2002) belong to the Bufonidae family, are endemic in the Brazilian Northeast and are commonly found during rainy periods. In general, amphibians of this family have in their poisons different metabolites that show a diversity of pharmacological activities. The isolation and identification of these compounds are of great importan
J. Braz. Chem. Soc.. Publicado em: 2021-05
-
2. Toxicidade aguda (LC50) e efeitos comportamentais e morfológicos de formulado comercial com princípio ativo glifosato em girinos de Physalaemus cuvieri (Anura, Leptodactylidae) e Rhinella icterica (Anura, Bufonidae)
RESUMO O declínio de anfíbios no mundo está cada vez maior e a perda de riqueza, muitas vezes, está associada a áreas agrícolas. O uso de agrotóxicos, em especial daqueles à base de glifosato, é cada vez maior e novas formulações estão sendo desenvolvidas. O presente trabalho avaliou a toxicidade aguda de um composto comercial com o princípio at
Eng. Sanit. Ambient.. Publicado em: 20/12/2019
-
3. First record of growth rings for 11 native subtropical anuran species of South America
Abstract: Skeletochronology is the most accurate method to estimate a population age structure. The methodology is based on the analysis of secondary bone tissue in order to count growth rings. This study aimed to provide initial data, allowing researchers to further work out in the age of individuals and populations, sampling evidence of the presence of gro
An. Acad. Bras. Ciênc.. Publicado em: 02/12/2019
-
4. Phenotypic Characterization and Synthesis of Extracellular Catecholase from a Newly Isolated Bacterium Pseudomonas sp. BSC-6
Abstract Catecholase (EC 1.10.3.1), an oxidoreductase enzyme is a key member of polyphenol oxidase family which catalyze the degradation of catechol. This enzyme possesses vast applications in diverse areas and is found in bacteria, fungi, mushrooms, higher plants, arthropods, amphibians and mammals. Catechol, a phenolic compound, is used as a starting mate
Braz. arch. biol. technol.. Publicado em: 25/11/2019
-
5. Comportamento territorial, vocalização e biologia reprodutiva de Allobates olfersioides (Anura: Aromobatidae)
RESUMO Em anfíbios a territorialidade, o cortejo elaborado e outras formas de comportamento, parecem estar mais associados a espécies que exibem o padrão de reprodução prolongado. A vocalização é um importante aspecto biológico relacionado à reprodução e ao comportamento social dos anuros. Este é o primeiro estudo com comportamento e vocalizaç�
Iheringia, Sér. Zool.. Publicado em: 09/09/2019
-
6. Contrasting life-histories in two syntopic amphibians of the Leptodactylus fuscus group (Heyer 1978)
Abstract Abstract: We used skeletochronology to compare age, size, reproductive parameters and growth patterns of two related, anuran amphibians from Northern Argentina: Leptodactylus bufonius(n=69) andL. latinasus(n=56), in order to better understand their coexistence in syntopy. Previous studies showed that the two species overlap in their dietary requirem
An. Acad. Bras. Ciênc.. Publicado em: 29/07/2019
-
7. Influence of microhabitat on the richness of anuran species: a case study of different landscapes in the Atlantic Forest of southern Brazil
Abstract: Environmental heterogeneity is a factor which can help explain the higher local species richness. The objective of this study was to test if richness and composition of anurans species are related to available microhabitats and landscape type of sampled sites. We assume that a higher number of microhabitats increase environmental heterogeneity and
An. Acad. Bras. Ciênc.. Publicado em: 01/07/2019
-
8. Metacercariae of Strigeidae Parasitizing Amphibians of the Chaco Region in Argentina
Abstract: The goal of the present study was to analyze the metacercariae found in adult amphibians collected in the Argentinean Chaco region. A total of 194 frogs, Leptodactylus chaquensis, Leptodactylus latinasus, and Lepidobatrachus laevis was examined for digeneans. Three different larval trematodes of the genus Strigea (Digenea, Strigeidae) were found in
An. Acad. Bras. Ciênc.. Publicado em: 08/04/2019
-
9. Amphibians of the Parque Nacional da Restinga de Jurubatiba, a sandy coastal environment in southeastern Brazil
Resumo: Nós fornecemos um inventário dos anfíbios do Parque Nacional da Restinga de Jurubatiba (PNRJ), uma zona costeira de ambiente arenoso no sudeste do Brasil. Como resultado de três anos de pesquisas, no período de Agosto de 2013 a Junho de 2016, foram registradas um total de 36 espécies de anfíbios - uma Gymnophiona (Typhlonectidae) e 35 espécie
Biota Neotrop.. Publicado em: 28/03/2019
-
10. Nyssorhynchus dunhami: bionomics and natural infection by Plasmodium falciparum and P. vivax in the Peruvian Amazon
BACKGROUND Nyssorhynchus dunhami, a member of the Nuneztovari Complex, has been collected in Brazil, Colombia, and Peru and described as zoophilic. Although to date Ny. dunhami has not been documented to be naturally infected by Plasmodium, it is frequently misidentified as other Oswaldoi subgroup species that are local or regional malaria vectors. OBJECTIVE
Mem. Inst. Oswaldo Cruz. Publicado em: 03/12/2018
-
11. Herpetofauna of Parque Estadual Altamiro de Moura Pacheco: one of the last remnants of seasonal forest in the core region of the Brazilian Cerrado
ABSTRACT Studies in remnants of semi-deciduous seasonal forest of the Cerrado are needed to fill sampling gaps and improve basic knowledge of biodiversity. This study presents data on the herpetofauna of Parque Estadual Altamiro de Moura Pacheco, one of the last protected areas of seasonal forest in the core region of the Brazilian Cerrado. Fourteen sites we
Pap. Avulsos Zool.. Publicado em: 29/11/2018
-
12. The Herpetofauna from Ilha Grande (Angra dos Reis, Rio de Janeiro, Brazil): updating species composition, richness, distribution and endemisms
Abstract Ilha Grande is a large continental island (total area of 19,300 ha) situated at the southern coast of the state of Rio de Janeiro, in southeast Brazil, within the Atlantic Forest Biome. Here we provide an update to the previous knowledge of the fauna of amphibians and reptiles occurring in Ilha Grande, based on primary data from our own fieldwork an
Pap. Avulsos Zool.. Publicado em: 10/07/2018