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; ≈1,270 m) and three high-elevation communities (Acultzingo, Maltrata, and Puebla City; 1,670–2,150 m) in Veracruz and Puebla States, México. 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 México. Data for Ae. aegypti adults captured through repeated trapping in fixed sites in Acultzingo—the highest elevation community (≈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.
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1 July 2014
Intra-Annual Changes in Abundance of Aedes (Stegomyia) aegypti and Aedes (Ochlerotatus) epactius (Diptera: Culicidae) in High-Elevation Communities in México
Saul Lozano-Fuentes,
Carlos Welsh-Rodriguez,
Andrew J. Monaghan,
Daniel F. Steinhoff,
Carolina Ochoa-Martinez,
Berenice Tapia-Santos,
Mary H. Hayden,
Lars Eisen
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Journal of Medical Entomology
Vol. 51 • No. 4
July 2014
Vol. 51 • No. 4
July 2014
abundance
Aedes aegypti
Aedes epactius
high elevation
temporal change