| [culicidae of itaipu lake, in the paraná river, southern brazil]. | mosquito catches were made in guaíra county, paraná state, southern brazil, in the vicinity of itaipu dam, from january to december 1991. the catches were made with a shannon light trap and human bait. the shannon light trap was installed beside the highway that used, formerly, to lead to the sete quedas cataracts and the human bait was used in the urban area. data about the culicidae fauna were obtained as to predominant species, seasonal variation, time of highest density and affinity with hum ... | 1995 | 8525315 |
| differentiation and genetic variability in natural populations of anopheles (n.) triannulatus (neiva & pinto, 1922) of brazilian amazonia. | populations of anopheles triannulatus from macapá (ap), aripuanã (mt), ji-paraná (ro), and manaus-janauari lake (am) were studied using 16 enzymatic loci. the results of the isozyme analysis showed that the population of macapá presented higher polymorphism (56.3%). the lowest variability was observed in the population of manaus (p = 25.0; ho = 0.077 +/- 0.046). the results of wright's f statistics showed unbalance due to excess of homozygotes (f(is) > f(st)), denoting a certain intrapopulationa ... | 2004 | 15462307 |