Реферат
The present work tested whether Triatoma pseudomaculata Corrêa & Espínola shows behavioral traits indicating that it is capable of feeding on arthropods. We consistently observed nymphs extending their proboscis in the direction of cockroaches and attempting to bite. Insects presented a preference for biting specific cockroach body parts. Our results suggest that arthropod hemolymph represents an alternative source of food that increases the survival of T. pseudomaculata individuals undergoing long starvation.
Тема - темы
Animals , Periplaneta/parasitology , Triatoma/physiology , Feeding BehaviorРеферат
Rhodnius ecuadoriensis infests peridomiciles and colonises houses in rural southern Ecuador. Six out of 84 dwellings (7 percent) surveyed in a rural village were infested (78 bugs/infested domicile; 279 bugs were collected in a single dwelling). Precipitin tests revealed R. ecuadoriensis fed on birds (65 percent), rodents (31 percent), marsupials (8 percent), and humans (15 percent) - mixed bloodmeals detected in 37.5 percent of individual samples. Trypanosoma cruzi from opossums and rodents may thus be introduced into the domestic cycle. Wasp parasitoidism was detected in 6.5 percent of 995 R. ecuadoriensis eggs (only in peridomestic habitats). Control strategies should integrate insecticide spraying (indoors and peridomestic), better management of poultry, and housing improvements. A possible inefficacy of Malathion is reported
Тема - темы
Humans , Animals , Ecosystem , Feeding Behavior , Insect Vectors , Rhodnius , Ecuador , Housing , Population DensityРеферат
En Bolivia, la enfermedad de Chagas es considerada como prioridad nacional debido a que sus principales indicadores son alarmantes: más del cincuenta por ciento del territorio nacional es endémico, cerca del veinte por ciento de la población estaría infectada, la mayor tasa de infección de America Latina y la población de riesgo sería de 3.5 millones de personas.
Тема - темы
Humans , Male , Female , Chagas Disease , BoliviaРеферат
Entre más de 100 especies de triatominae (hemiptera: ruduviidae) descritas en el Nuevo Mundo, triatoma sordida es considerada de significancia epidemiológica como vector de trypanosoma cruzi por su amplia área de distribución y su tendencia para invadir ambientes domésticos.
Тема - темы
Humans , Male , Female , Triatoma , Trypanosoma cruzi , BoliviaРеферат
Triatoma infestans es el vector principal de la enfermedad de Chagas en Bolivia y, excepto algunos focos silvestres de esta especie descrito en el departamento de Cochabamba, existen hasta ahora pocos estudios de las otras especies silvestres.