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Memórias do Instituto Oswaldo Cruz
Fundação Oswaldo Cruz, Fiocruz
ISSN: 1678-8060
EISSN: 1678-8060
Vol. 90, No. 3, 1995, pp. 325-328
Bioline Code: oc95064
Full paper language: English
Document type: Research Article
Document available free of charge

Memórias do Instituto Oswaldo Cruz, Vol. 90, No. 3, 1995, pp. 325-328

 en Ecology of Triatoma rubrovaria (Hemiptera, Triatominae) in wild and peridomestic environments of Uruguay
Roberto Salvatella; Raquel Rosa; Yester Basmadjian; Andres Puime; Luis Calegari; Jorge Guerrero; Maria Martinez; Gabriela Mendaro; Daniel Briano; Carlos Montero & Cristina Wisnivesky-Colli

Abstract

This paper describes population structure, spatial distribution
and habitat selection of wild and peridomestic populations of
Triatoma rubrovaria (Blanchard, 1843). Field studies were carried
out at Las Piedras and La Bolsa in the Northern Department of
Artigas, Uruguay. A semicircular sampling area, divided in seven
or eight triangular sectors was sequentially examined from
October 1990 to November 1991. At Las Piedras (typical wild
habitat) 1063 T. rubrovaria bugs were collected from 84%  of the 
rocky  outcroops ("pedregales").  Abundance  varied  by  season 
peaking  in October-November (spring). Throughout the year, mast
of the population was made up of third, fourth and fifth instar
nymphs; adults were found from October to March. In the
peridomestic environment of La Bolsa, however T. rubrovaria was
less common and showed a more irregular instar distribution.
Colonized ecotopes, were those close to houses. In both sites T.
rubrovaria was mainly associated with the geckonid Homonora
uruguayensis and the cockroach Blaptica dubia.

Keywords
Triatoma rubrovaria - triatomines - Uruguay - ecology

 
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