Simian malaria at two sites in the Brazilian Amazon - II: Vertical distribution and frequency of anopheline species inside and outside the forest

Abstract

An anopheline survey was carried out in two simian malaria areas in the Brazilian Amazon, Balbina and Samuel, to determine the potential vectors of Plasmodium brasilianum. The most abundant and/or acrodendrophilic anophelines in the forest and the most likely vector were Anopheles mediopunctatus, An. nuneztovari, An. oswaldoi, An. triannulatus and An. shannoni. An. darlingi and An. marajoara were captured essentially in anthropic habitats outside the forest and are unlikely to be involved in the transmission of P. brasilianum among monkeys within the forests and from monkeys to man in their surroundings in the Amazon

Studies on entomological monitoring: mosquito species frequency in riverine habitats of the Igarapava Dam, Southern Region, Brazil

“…tendency curves showed an increase in the pasture and the forest. These results partially agrees with that previously obtained by LOURENÇO-DE-OLIVEIRA & LUZ 19 that found An. darlingi was much more abundant in anthropic environments.…”

Salivary Polytene Chromosome Map of Anopheles darlingi, the Main Vector of Neotropical Malaria

“…In the chromosome arm 2R, sections 6, 7, 8, 9, 10, 12, 13, and 15 were subdivided into 4, 3, 4, 5, 5, 5, 5, and 5 subsections, respectively. In the chromosome arm 2L, sections 16,17,19,20,21,22,23, and 24 were subdivided into 4, 3, 4, 4, 3, 4, 3, 3, and 3 subsections, respectively. Chromosome arm 3R shows the sections 26, 27, 28, 29, 30, 33, and 34, which were subdivided into 3, 3, 4, 3, 3, 3, and 3 subsections, respectively.…”

“…This mosquito has been observed almost exclusively at the modified sites, especially around and into the houses, a fact that confirms its high degree of association with human dwellings. 16 Karyotypes of the studied Anopheles species are relatively conserved. Morphological data obtained from metaphase karyotypes of six chromosomes in brain cells of A. darlingi describe a pair of metacentric (chromosome 2) and a pair of submetacentric (chromosome 3) autosomes, and sex chromosomes (female XX; male XY).…”

Diverse population dynamics of three Anopheles species belonging to the Triannulatus Complex (Diptera: Culicidae)

“…triannulatus s.l. is considered to be essentially zoophilic, exophilic and crepuscular, although it may bite humans indoors and play a secondary role in malaria transmission when in high densities (Deane et al 1948, Charlwood & Wilkes 1981, Lourenço-de-Oliveira & Luz 1996, Tadei et al 1998, Brochero et al 2006, Zimmerman et al 2006, Póvoa et al 2006, Rosa-Freitas et al 2007). Thus, low rates of P. falciparum and P. vivax s.l.…”