Intra-Annual Changes in Abundance of Aedes (Stegomyia) aegypti and Aedes (Ochlerotatus) epactius (Diptera: Culicidae) in High-Elevation Communities in Mexico
Autor(es): Lozano-Fuentes, Saul; Welsh-Rodriguez, Carlos; Monaghan, Andrew J.; Steinhoff, Daniel F.; Ochoa-Martinez, Carolina; Tapia-Santos, Berenice; Hayden, Mary H.; Eisen, Lars
Resumo: We examined temporal changes in the abundance of the mosquitoes Aedes (Stegomyia) aegypti (L.) and Aedes (Ochlerotatus) epactius Dyar & Knab from June to October 2012 in one reference community at lower elevation (Rio Blanco; approximate to 1,270 m) and three high-elevation communities (Acultzingo, Maltrata, and Puebla City; 1,670-2,150 m) in Veracruz and Puebla States, Mexico. The combination of surveys for pupae in water-filled containers and trapping of adults, using BG-Sentinel traps baited with the BG-Lure, corroborated previous data from 2011 showing that Ae. aegypti is present at low abundance up to 2,150 m in this part of Mexico. Data for Ae. aegypti adults captured through repeated trapping in fixed sites in Acultzingo-the highest elevation community (approximate to 1,670 m) from which the temporal intra-annual abundance pattern for Ae. aegypti has been described-showed a gradual increase from low numbers in June to a peak occurrence in late August, and thereafter declining numbers in September. Ae. epactius adults were collected repeatedly in BG-Sentinel traps in all four study communities; this is the first recorded collection of this species with a trap aiming specifically to collect human-biting mosquitoes. We also present the first description of the temporal abundance pattern for Ae. epactius across an elevation gradient: peak abundance was reached in mid-July in the lowest elevation community (Rio Blanco) but not until mid-September in the highest elevation one (Puebla City). Finally, we present data for meteorological conditions (mean temperature and rainfall) in the examined communities during the study period, and for a cumulative measure of the abundance of adults over the full sampling period.
Palavras-Chave: Aedes Aegypti; Aedes Epactius; Abundance; Temporal Change; High Elevation
Imprenta: Journal of Medical Entomology, v. 51, n. 4, p. 742-751, 2014
Identificador do objeto digital: 10.1603/ME14015
Descritores: Aedes aegypti - Public health
Data de publicação: 2014
