ABSTRACT
Euglossini são abelhas típicas de florestas Neotropicais úmidas e poucas espécies ocorrem na caatinga. O rio São Francisco, o único perene do semi-árido brasileiro, é margeado por mata ciliar perenifólia. Esse ambiente oferece recursos florais ao longo do ano. Inventários de Euglossini mostraram que espécies da Floresta Atlântica como Euglossa imperialis Cockerel, E. truncata Moure e Eulaema cingulata Fabricius ocorrem na mata ciliar do rio São Francisco. Estas abelhas são restritas às matas ciliares que funcionam como biocorredores, sendo ausentes em locais onde as matas foram derrubadas. Isto enfatiza a necessidade de proteção das matas ciliares para a manutenção da biodiversidade.
Euglossini are typical bees of Neotropical rainforests and only a few species occur in the Caatinga. The São Francisco river, which is the only permanent river in the semi-arid NE-Brazil, is bordered by a gallery forest with evergreen leaves. This environment offers flooral rewards along the year. Surveys of euglossine bees by attracting males to scent baits showed that species of the Atlantic Rainforest like Euglossa imperialis Cockerel, E. truncata Moure and Eulaema cingulata Fabricius occur in the gallery forest of the São Francisco river under the semi-arid climate of the caatinga region. These bees are restricted to the gallery forests which function as bio-corridors, and are absent at places where the forests were cut down. This emphasizes the need to protect the threatened gallery forests to maintain biodiversity.
Subject(s)
Animals , Bees , Brazil , Demography , Rivers , TreesABSTRACT
A clinical study on the evolution of patients with schistosomiasis mansoni conducted since 1983 at the outpatient clinic of the Infectious and Parasitic Disease Service in the Clementino Fraga Filho University Hospital in Rio de Janeiro, Brazil, comparing prevalence of positive tests for HBsAg, anti-HBsAg, and anti-HBc among patients infected with Schistosoma mansoni coming from various regions of Brazil and with different clinical forms of the disease. A non-significant predominance of HBsAg, anti-HBsAg, and anti-HBc was detected among patients with the hepatosplenic form of schistosomiasis, who presented a more severe clinical evolution with a higher frequency of hematemesis and/or melena, in addition to the development of macronodular cirrohosis and a worse prognosis as compared to patients with the toxemic form, schistosomiasis-infection and the hepatointestinal form.