Abstract
This study examined the association of human and environmental factors with the presence of Aedes aegypti, the vector for dengue fever and yellow fever viruses, in a desert region in the southwest United States and northwest Mexico. Sixty-eight sites were longitudinally surveyed along the United States–Mexico border in Tucson, AZ, Nogales, AZ, and Nogales, Sonora during a 3-year period. Aedes aegypti presence or absence at each site was measured three times per year using standard oviposition traps. Maximum and minimum temperature and relative humidity were measured hourly at each site. Field inventories were conducted to measure human housing factors potentially affecting mosquito presence, such as the use of air-conditioning and evaporative coolers, outdoor vegetation cover, and access to piped water. The results showed that Ae. aegypti presence was highly variable across space and time. Aedes aegypti presence was positively associated with highly vegetated areas. Other significant variables included microclimatic differences and access to piped water. This study demonstrates the importance of microclimate and human factors in predicting Ae. aegypti distribution in an arid environment.
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Acknowledgements
The National Center for Atmospheric Research is sponsored by the National Science Foundation. This manuscript was prepared by Mary H. Hayden and co-authors under award NA16GP2615 from the Office of Global Programs, U.S. Department of Commerce. The statements, finding, conclusions, and recommendations are those of the author(s) and do not necessarily reflect the views of the National Oceanic and Atmospheric Administration or the U.S. Department of Commerce. The authors would like to thank the NOAA’s Office of Global Programs for funding support. We greatly appreciate the comments and suggestions provided by the anonymous reviewers. We would also like to thank Duane Gubler, Gary Clark, Philippe Waterinckx, Deborah Thomas, Craig Levy, Andrew Comrie, and RosaElena Cuevas for field support without which this research would not have been possible. All of the household study participants were unfailingly gracious in providing access to their property throughout the duration of the study.
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Hayden, M.H., Uejio, C.K., Walker, K. et al. Microclimate and Human Factors in the Divergent Ecology of Aedes aegypti along the Arizona, U.S./Sonora, MX Border. EcoHealth 7, 64–77 (2010). https://doi.org/10.1007/s10393-010-0288-z
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DOI: https://doi.org/10.1007/s10393-010-0288-z