
Em colônias de Panstrongylus megistus, espontaneamente desenvolvidas em galinheiros experimentais, pôde-se observar as condições de desenvolvimento, variação e permanência de seus componentes. Foram obtidos também dados sobre os ciclos anuais e a sobrevivência, O aspecto cíclico caracterizou-se pela maior produção de formas adultas no último trimestre do ano, ocasião que coincide com o encontro dessa espécie no ambiente domiciliar. Face a tais achados, considera-se que o período de produção de adultos representa a fase "infestante" para o ambiente domiciliar "suscetível", este representado pelas áreas tratadas, ou seja, as previamente submetidas ao expurgo. Nesse período, ocorre o risco da reinfestação e subseqüente domiciliação desse triatomíneo, a partir do ambiente extradomiciliar. Tais informações permitem sua utilização nas atividades de vigilância epidemiológica.
Spontaneous colonies of Panstrongylus megistus developed in experimental fowlhouses were observed for the conditions of their development, variation and permanence of their components. Data were also obtained on their annual cycles and survival. The annual cyclical rhythm showed an increase of adult production in the last quarter of the year, with a similar pattern of females findings in the dwellings. This cyclic colony dynamic makes possible the identification of the "infestant" period for the "susceptible" domiciliary environment composed of the previously cleaned dwellings. The reinfestation risk from extradomiciliary P. megistus in this Southern region of Brazil occurs at this time. These information allows their utilization for surveillance activities to prevent house reinfestation.
Triatominae^i2^sdomiciliat, Male, Tripanossomíase americana, Triatomíneos^i1^sdomicilia, Ecology, Population Dynamics, Panstrongylus, Housing, Animal, Panstrongylus megistus, Ecologia, Triatomíneos^i1^sdinâmica populacio, Triatominae^i2^sdisper, Trypanosomiasis, Triatominae^i2^spopulation dynam, Housing, South American, Animals, Chagas Disease, Female, Triatomíneos^i1^sdisper, Triatominae, Brazil
Triatominae^i2^sdomiciliat, Male, Tripanossomíase americana, Triatomíneos^i1^sdomicilia, Ecology, Population Dynamics, Panstrongylus, Housing, Animal, Panstrongylus megistus, Ecologia, Triatomíneos^i1^sdinâmica populacio, Triatominae^i2^sdisper, Trypanosomiasis, Triatominae^i2^spopulation dynam, Housing, South American, Animals, Chagas Disease, Female, Triatomíneos^i1^sdisper, Triatominae, Brazil
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