Atividade de Mansonia spp. (Mansoniini, Culicidae) em fragmento florestal na área urbana de Curitiba, Paraná, Brasil

Abstract

Fragmentos de mata no cenário urbano podem reunir condições favoráveis à reprodução de espécies de Culicidae. No Parque Regional do Iguaçu (Curitiba, Paraná) existe uma série de cavas ou lagoas contendo vegetação aquática que pode ser utilizada pelos imaturos das espécies de Mansoniini. A investigação foi desenvolvida com objetivo de conhecer as espécies de Mansonia Blanchard, 1901 que exercem hematofagia no período diurno em área de mata no interior do parque. As coletas dos mosquitos foram efetuadas de setembro de 1999 a agosto de 2000. Três espécies de Mansonia foram identificadas, com os seguintes percentuais relativos: 74,7% de M. fonsecai (Pinto, 1932), 10,7% de M. wilsoni (Barreto & Coutinho, 1944) e 8,3% de M. tittilans (Walker, 1848). Quanto ao horário de atividade, as espécies ocorreram durante todo o dia em ritmo similar, com as seguintes médias horárias 9,5, 1,3 e 1,0 para M. fonsecai, M. wilsoni e M. tittilans, respectivamente.

Changes in Brazilian Drosophilidae (Diptera) assemblages across an urbanisation gradient

“…Number of exotic species This attribute of urban gardens was also observed for other insects, as butterfl ies (Blair & Launer 1997, Wood & Pullin 2002, Shapiro 2002 and mosquitoes (Barbosa et al 2003, Navarro-Silva et al 2004. Nevertheless, Levy & Connor (2004) point that the populations found in these gardens could not be maintained due to a lack of local resources, and that these areas probably act as sink environments for these populations.…”

Effects of Artificial Flooding for Hydroelectric Development on the Population ofMansonia humeralis(Diptera: Culicidae) in the Paraná River, São Paulo, Brazil

“…According to Forattini [ 2 ], this dynamic favors selective processes. Newly established ecotopes promote the proliferation of mosquito species that become nuisances or disease vectors for humans [ 3 ].…”

Mayaro virus and dengue virus 1 and 4 natural infection in culicids from Cuiabá, state of Mato Grosso, Brazil

“…The uncontrolled demographic growth, precarious sanitary conditions, and of infrastructure observed in several neighbourhoods, associated to the presence of growing areas, parks, streams, and rivers inside the urban perimeter, may explain the presence of sylvatic culicid species in the study. Permanent preservation areas (extensive areas with native sylvatic woods in the urban perimeter protected by law) and parks also allow the existence of birds and primates that are important amplifying hosts for several arboviruses ( Navarro-Silva et al 2004 ).…”