Análise faunística de Calliphoridae (Diptera) da Reserva Biológica do Tinguá, Nova Iguaçu, Rio de Janeiro

Abstract

A biodiversidade é regulada por vários fatores, em várias escalas, sendo esses fatores locais ou regionais (Moreno 2001). Em uma mesma área geográfica, a diversidade reflete a coexistência entre os organismos, que interagem através da competição por utilizarem as mesmas fontes ou o mesmo ambiente (Whittaker 1967). Em ambientes em equilíbrio competitivo, a diversidade total de espécies apresenta-se normalmente baixa e as espécies são suficientemente diferentes ABSTRACT. Analysis of Calliphoridae (Diptera) fauna in Reserva Biológica do Tinguá, Nova Iguaçu, Rio de Janeiro. The present study investigates the calliphorid fauna in the Biological Reserve of Tinguá using faunistic indices. Monthly samplings were carried out using traps containing sardines that were exposed for 48 hours at the sites: A, at the border of the forest; B, 1,000 m towards the interior of the forest; and C, 500 m towards the interior of the forest. The objective was to study the Calliphoridae fauna in forest environments using faunal indices. Jackknife 2 at site B produced a higher value, however, indicating that it was possible to collect five other species in the reserve and three more species at A and C. Diversity was greatest at B, but evenness was similar at the sites. B and C showed a greater level of similarity in species composition (dendogram); L. nigripes and Mesembrinella bellardiana, which are the most important species at these two sites, appeared grouped together. Chrysomya albiceps, Chrysomya megacephala and Hemilucilia semidiaphana, the main species at Site A, also appear together.KEYWORDS. Blow fly; diversity; evenness; variety.RESUMO. Análise faunística de Calliphoridae (Diptera) da Reserva Biológica do Tinguá, Nova Iguaçu, Rio de Janeiro. O presente estudo investiga a fauna de califorídeos na Reserva Biológica do Tinguá usando como meios os índices faunísticos. Realizaram-se coletas mensais com armadilhas contendo sardinha expostas por 48 horas, nos pontos: A-borda da mata; B-1000 metros para interior da mata; C-500 metros para interior da mata. Objetivou-se estudar a entomofauna califorídica em ambiente florestal através de índices faunísticos.

Edge effects on the blowfly fauna (Diptera, Calliphoridae) of the Tijuca National Park, Rio de Janeiro, Brazil

“…The dominant species found in our results differ from Ferraz et al (2009), who found that C. albiceps predominates in another area of the Atlantic Forest of Rio de Janeiro. This contrast is important because it shows that two areas in the same biome provide different overviews of the distribution and dominance of different species of calliphorids.…”

“…In the present study, the species was considered common and constant at all sampling points, but its distribution was more concentrated inside the forest. This result is in agreement with those results obtained by Ferraz et al (2009), in which this species was the most abundant in the innermost point (1,000m) of REBIO Tinguá. However, M. bellardiana seems to be more concentrated in the range of 1,200 to 1,000m inside the forest, since specimens were less abundant in the point located at 2,000m in the study of Gadelha (2009).…”

“…This finding contrasts with the results obtained by Ferraz et al (2009), who found that it was the third most often collected species, and by Costa et al (1992), who found that C. albiceps was the species of Chrysomya most often collected in the urban area of Rio Grande do Sul. In the present study, C. albiceps was considered common only at the edge, intermediate in the remaining points, and accessory according to the constancy index.…”

Composition, Abundance and Richness of Sarcophagidae (Diptera: Oestroidea) in Forests and Forest Gaps with Different Vegetation Cover

“…The lesh lies did not show sensitivity in relation to types of gaps, as was recorded for blow lies by Sousa et al (2010); but did show differences between gaps and forests. Ferraz et al (2009) recorded a lower richness of blow lies species at locations near to the entrance (greater anthropic impact) of the Reserva Biológica de Tinguá, Nova Iguaçu, Rio de Janeiro. Sousa et al (2010) found a lower richness of blow lies species in gaps in the Urucu River Basin, Coari, Amazonas.…”

Diversity of Calliphoridae and Sarcophagidae (Diptera, Oestroidea) in continuous forest and gaps at different stages of regeneration in the Urucu oilfield in western Brazilian Amazonia

“…The response of these flies to the effects of anthropogenic impacts on the environment has been studied by Centeno et al (2004), Esposito et al (2009Esposito et al ( , 2010, Ferraz et al (2009), and Sousa et al (2010;. These studies have shown that the species richness and diversity of blowflies decrease in areas that have suffered anthropogenic impact, in comparison with natural environments.…”