The process of domestication in Triatominae.
نویسندگان
چکیده
The Triatominae represent a subfamily of the Reduviidae defined on the basis of their bloodsucking habit and associated characteristics. At present, 128 species are formally recognised, grouped into 17 genera in 5 tribes. The majority are silvatic, associated with a wide variety of vertebrate hosts – particularly nest-building mammals and birds. Others occupy silvatic and peridomestic habitats such as chicken coops and goat corrals, and a few have completed the transition to domestic habitats where they may become important as domestic vectors of human Chagas disease. The most highly domesticated species, such as Triatoma infestans in Southern Cone countries, and Rhodnius prolixus in parts of the Andean Pact and Central America, are now being progressively controlled through regional and national initiatives designed to eliminate domestic populations by residual insecticide spraying. In recent years however, there have been increasing reports of other species establishing domestic colonies, and some, such as T. dimidiata, have even invaded urban and periurban residences. In many cases, the new infestations involve little-known species previously considered to be exclusively silvatic in habit, such as Panstrongylus rufotuberculatus, Rhodnius stali, and Eratyrus mucronatus in Bolivia (Noireau et al. 1995, Dujardin et al. 1998a), and P.geniculatus in the Amazon region (Valente et al. 1998). It seems clear therefore, that the process of domestication in Triatominae is not only a historical event, but may be a generalised current trend within the subfamily (cf. Diotaiuti 1997). Here we present a general description of the evolutionary process, as a basis for discussion of the possible mechanisms involved and their likely consequences. EVOLUTION OF HAEMATOPHAGY
منابع مشابه
Some considerations about the ecology of Triatominae.
Observations on the ecology of silvatic Triatominae are still fragmentary, principally because target species in control process are almost exclusively domestic. Report of silvatic species invading human dwellings must lead research to be focused on their original ecology, in order to assist in understanding their process of domestication and devising strategies for surveillance.
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ورودعنوان ژورنال:
- Memorias do Instituto Oswaldo Cruz
دوره 94 Suppl 1 شماره
صفحات -
تاریخ انتشار 1999