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[Ecological aspects of South American trypanosomiasis. VII. Permanence and mobility of Triatoma sordida in relation to artificial ecotopes].

Authors: Forattini, Oswaldo Paulo; Ferreira, Octávio Alves; Silva, Eduardo Olavo da Rocha e; Rabello, Ernesto Xavier;

[Ecological aspects of South American trypanosomiasis. VII. Permanence and mobility of Triatoma sordida in relation to artificial ecotopes].

Abstract

Spontaneous colonies of Triatoma sordida developed in experimental fowlhouses were submitted to observations as regards permanence and mobility of this bug. During thirteen months, adults and nymphs of fourth and fifth in stars were tagged for recapture. Resting traps for atracting bugs were placed around the fowlhouses. Adults showed no more than two months of permanence inside these artificial ecotopes. Eggs and first nymphs found in the resting traps suggested activity of adults coming from the fowlhouses. It was evident that this triatomid has a dispersal capacity and an adult tendency towards leaving the colonies as soon as the first egg batches are layed. After this the female will continue the oviposition inside other ecotopes attempting to develop new colonies. This aspect agress with the high characteristic ecological valence of this bug.

Nas colônias desenvolvidas espontaneamente em ecótopos artificiais, representados por galinheiros experimentais, procurou-se observar a permanência e a mobilidade de Triatoma sordida. Para tanto, procedeu-se à marcação individual de adultos e ninfas de 4.° e 5.° estádios, bem como à instalação de abrigos ao redor daqueles biótopos. Os dados obtidos permitiram observar a curta permanência dos primeiros na colônia, não ultrapassando o período de dois meses para a maioria dessas formas. A mobilidade evidenciou-se pela presença de ovos e ninfas de 1.° estádio, nos esconderijos instalados, e as evidências sugeriram ser devidas à passagem dos adultos por esses ecótopos. Concluiu-se que esta espécie é dotada de elevada capacidade de disseminação, em concordância com sua apreciável valência ecológica.

Keywords

Tripanossomíase americana, Ecology, Trypanossomiasis, Triatomíneos (mobilidade, Triatomids bugs (mobility, Triatoma sordida, Ecologia médica, Medical ecology, dispersão), dispersal), South American, Humans, Chagas Disease, Triatoma, Triatominae, Brazil

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
25
Average
Top 10%
Average
Green
gold