| wild habitat and related fauna of panstrongylus lutzi (reduviidae, triatominae). | although panstrongylus lutzi (neiva and pinto) is currently the fifth most frequent species of triatominae captured in artificial structures in brazil, its silvatic habitat remains unknown. a survey of its natural ecotopes was performed in an area of bahia state. p. lutzi nymphal instars and adults were detected in burrows of dasypodidae. silvatic habitat of four other endemic triatomine species of the caatinga (triatoma pseudomaculata correa and espinola, triatoma brasiliensis neiva, rhodnius n ... | 2003 | 14765681 |
| risk factors for reinvasion of human dwellings by sylvatic triatomines in northern bahia state, brazil. | the aim of this study in curaça, bahia, northeast brazil was to explore possible factors associated with the infestation of human dwellings by triatoma brasiliensis or triatoma pseudomaculata, two sylvatic triatomine species. we use multiple logistic regression analysis to show how structural features of the peridomiciliary area combine with the number of animals and sociological factors to allow infestation of some dwellings. it is suggested that t. brasiliensis is associated with human activit ... | 2005 | 15868058 |
| ecotopes, natural infection and trophic resources of triatoma brasiliensis (hemiptera, reduviidae, triatominae). | triatoma brasiliensis is considered as one of the most important chagas disease vectors in the northeastern brazil. this species presents chromatic variations which led to descriptions of subspecies, synonymized by lent and wygodzinsky (1979). in order to broaden bionomic knowledge of these distinct colour patterns of t. brasiliensis, captures were performed at different sites, where the chromatic patterns were described: caicó, rio grande do norte (t. brasiliensis brasiliensis neiva, 1911), it ... | 1998 | 9698835 |
| new perspectives for population genetics of chagas'disease vectors in the northeastern brazil: isolation of polymorphic microsatellite markers in triatoma brasiliensis. | triatoma brasiliensis is the most important chagas disease vector in semiarid areas of northeastern brazil. although generally found in natural environment, it regularly colonizes or reinvades domiciliary ecotopes. in order to analyse gene flow between habitats, we identified and characterized six microsatellite loci using a microsatellite-enriched genomic library. to assess the usefulness of these microsatellites for genetic studies, we investigated their variability in two natural populations ... | 2009 | 19460330 |
| isoenzymes detect variation in populations of triatoma brasiliensis (hemiptera: reduviidae: triatominae). | triatoma brasiliensis is one of the most important vectors of chagas disease in the semiarid zone of the northeast of brazil. intraspecific morphological and behavioural variation has been reported for different populations. results for four distinct populations using eight isoenzymes are reported here. the literature describes three subspecies: t. brasiliensis brasiliensis neiva, 1911; t. brasiliensis melanica neiva & lent, 1941 and t. brasiliensis macromelasoma galvão, 1956. these subspecies d ... | 1997 | 9361737 |
| microsatellite markers in triatoma pseudomaculata (hemiptera, reduviidae, triatominae), chagas' disease vector in brazil. | six polymorphic microsatellite loci were isolated and characterized using a microsatellite-enriched genomic library from the chagas' disease vector triatoma pseudomaculata. this species is found in brasil in caatinga areas and predominantly in peridomestic habitats. all the microsatellites tested on a population of t. pseudomaculata sampled in the bahia state, brazil, were polymorphic (2-15 alleles). markers amplification was also tested on six triatoma species and some loci successfully amplifi ... | 2008 | 18571993 |