Dinámica de oviposición de Aedes (Stegomyia) aegypti (Diptera: Culicidae), estado gonadotróficoy coexistencia con otros culícidos en el área Metropolitana de Bucaramanga, Colombia

Abstract

Introduction: Tropical urban areas favor the presence of Aedes aegypti in the American continent. Other mosquitoes can share the same geographic distribution with this mosquito, which justifies that they must be monitored. Objective: It is to know the dynamics of oviposition of A. aegypti, evaluate its gonadotrophic state and determine taxonomically the presence of other culicidae in the metropolitan area of Bucaramanga. Methodology: Oviposition traps (N = 960) were baited with hay infusion (10%) for one year in four locations (Norte, Girón, Piedecuesta and Floridablanca). The ovitraps were kept for five days indoors and outdoors, while larvae were collected in plants such as bromeliads and water reservoirs from each collecting site. In the month of May 2014, were captured with an electric aspirator and traps to catch females of A. aegypti and Culex quinquefasciatus to which were estimated their gonadotrophic state. Environmental data such as precipitation and temperature were correlated with the collected eggs and their oviposition indices. Results: 25,254 eggs of A. aegypti were obtained (39.1% Girón, 36.8% Bucaramanga, 15.2% Floridablanca and 8.9% Piedecuesta). In general, oviposition rates were higher outdoors. As for the gonotrophic state, it was detected that females of A. aegypti can have for over two gonadotrophic cycles. In the active catch outdoors were found Culex spp., Culex quinquefasciatus, Limatus durhamii, Toxorhynchites spp and Wyeomyia davisi. Conclusion: A. aegypti was present in all localities and other mosquitoes are reported in the metropolitan area.

Current Situation of the Presence of Dirofilaria immitis in Dogs and Humans in Bucaramanga, Colombia

“…Bucaramanga is surrounded by vegetation and is characterized by an average annual temperature of 24 • C, high humidity levels, several gullies in its proximity or even in the central areas that accumulate water during the rainy season, and the presence of two rivers (River Oro and River Surata in the areas of Girón and Bucaramanga, respectively). In addition, there are vector species described in the both area, such as Aedes aegypti, and other species that could be involved in disease transmission (10,25). These conditions could promote breeding of these mosquitoes and disease transmission in Bucaramanga.…”

Current situation of the presence of Dirofilaria immitis in dogs and humans in Bucaramanga, Colombia

“…Bucaramanga is surrounded by vegetation and is characterized by an average annual temperature of 24 ºC, high humidity levels, several gullies in its proximity or even in the central areas that accumulate water in the rainy season, and the presence of two rivers (Oro and Surata in the areas of Girón and Bucaramanga, respectively). In addition, there are vector species described in the same area, such as Aedes aegypi, and others that could help to transmit the disease [10,25]. These conditions could promote breeding of these mosquitoes and disease transmission in said areas.…”