Riquezas de espécies, ambientes de reproduçáo e temporada da vocalizaçao anurofauna em três barras do Paraná, Brasil (Amphibia: anura)

Foi realizado um levantamento de espécies de anuros na região do Parque Estadual do Rio Guarani (25º25'S; 53º15'W), Município de Três Barras do Paraná, sudoeste do Estado do Paraná, Brasil. Os ambientes de reprodução e o período de vocalização foram registrados para a maioria das espécies. Foram encontradas 23 espécies pertencentes às seguintes famílias: Bufonidae (1), Centrolenidae (1), Hylidae (9), Leptodactylidae (10), Microhylidae (1) e Ranidae (1). A riqueza de espécies desta localidade foi mais similar com a anurofauna do Município de Londrina (Coeficiente de Semelhança Biogeográfica = 0,8), possivelmente porque ambas regiões apresentam o mesmo tipo de formação vegetal (Floresta Estacional Semidecídua) e estão localizadas no terceiro planalto paranaense.Asociación Herpetológica Argentina (AHA

Riquezas de espécies, ambientes de reproduçáo e temporada da vocalizaçao anurofauna em três barras do Paraná, Brasil (Amphibia: anura)

Foi realizado um levantamento de espécies de anuros na região do Parque Estadual do Rio Guarani (25º25'S; 53º15'W), Município de Três Barras do Paraná, sudoeste do Estado do Paraná, Brasil. Os ambientes de reprodução e o período de vocalização foram registrados para a maioria das espécies. Foram encontradas 23 espécies pertencentes às seguintes famílias: Bufonidae (1), Centrolenidae (1), Hylidae (9), Leptodactylidae (10), Microhylidae (1) e Ranidae (1). A riqueza de espécies desta localidade foi mais similar com a anurofauna do Município de Londrina (Coeficiente de Semelhança Biogeográfica = 0,8), possivelmente porque ambas regiões apresentam o mesmo tipo de formação vegetal (Floresta Estacional Semidecídua) e estão localizadas no terceiro planalto paranaense.Asociación Herpetológica Argentina (AHA

Parasitism by Amblyomma rotundatum on Teiidae lizards in the eastern part of the state of Acre, Brazil

Abstract The aim of the present study was to report on the occurrence of parasitism by Amblyomma rotundatum ticks on two species of Teiidae lizards and test the presence of rickettsiae in the collected ticks, in the western Brazilian Amazon region. Ticks were collected in July 2019, from a fragment of terra firme forest in the municipality of Senador Guiomard, Acre, Brazil. Two lizards that were infested by immature stages of ticks were caught using mist net and Tomahawk traps. Ectoparasites were collected manually, and the lizard specimens were identified and released at the same location where they had been caught. Three nymphs and 49 larvae were collected from Ameiva ameiva, while 25 nymphs and nine larvae were collected from Tupinambis cuzcoensis, which are both in the family Teiidae. The ticks were identified morphologically as belonging to the genus Amblyomma. Nymphs were identified at species level through molecular analysis, resulting in the tick species Amblyomma rotundatum. This is the first record of parasitism by the tick A. rotundatum on T. cuzcoensis lizard, and the first report of an association between A. rotundatum and the lizard species A. ameiva and T. cuzcoensis in Acre, in the western part of the Amazon region

Mapping the Silent Threat: A Comprehensive Analysis of Chagas Disease Occurrence in Riverside Communities in the Western Amazon

Chagas disease (CD) is a typical tropical illness caused by Trypanosoma cruzi. The objective of this study was to assess the prevalence of Chagas disease in communities in two states of the Brazilian Amazon. Data collection occurred in July in the Alto Juruá region of Acre and in December in the communities of Humaitá, Amazonas, in 2019. A total of 477 participants were included in the study. In the communities of Alto Juruá, triatomine collections and analyses of T. cruzi infection were also carried out. All confirmed cases were found in the state of Acre, resulting in a total prevalence of 1.67. Of these eight cases, seven underwent ECG, all of which were concluded as normal by the physician team’s cardiologists. Seventeen triatomine bugs, all belonging to the Rhodnius genus, were captured. The natural infection rate by T. cruzi was 25% in the Nova Cintra community and 66.67% in the Boca do Moa community (Alto Juruá). This research found that more than 1% of the studied population exhibited positive serological results for Chagas disease in the riverine communities during the study period, representing a small portion of cases among those who have not yet been diagnosed