image of Environmental Determinants of Aedes albopictus Abundance at a Northern Limit of Its Range in the United States
  • ISSN: 0002-9637
  • E-ISSN: 1476-1645


is a vector of arbovirus with high rates of morbidity and mortality. The northern limit of in the northeastern United States runs through New York state (NYS) and Connecticut. We present a landscape-level analysis of mosquito abundance measured by daily counts of from 338 trap sites in 12 counties during May–September 2017. During the study period, the mean number of caught per day of trapping across all sites was 3.21. We constructed four sets of negative binomial generalized linear models to evaluate how trapping methodology, land cover, as well as temperature and precipitation at multiple time intervals influenced abundance. Biogents-Sentinel (BGS) traps were 2.78 times as efficient as gravid traps and 1.49 times as efficient as CO-baited CDC light traps. Greater proportions of low- and medium-intensity development and low proportions of deciduous cover around the trap site were positively associated with increased abundance, as were minimum winter temperature and March precipitation. The cumulative precipitation within a 28-day time window before the date of collection had a nonlinear relationship with abundance, such that as precipitation increased beyond approximately 70 mm, there was a decrease in abundance. We concluded that populations are well established in Nassau, Suffolk, and New York City counties in NYS; north of these counties, the species is undergoing population invasion and establishment. We recommend that mosquito surveillance programs monitoring the northward invasion of place BGS traps at sites chosen with respect to land cover.

[open-access] This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.


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  • Received : 29 Mar 2019
  • Accepted : 06 Nov 2019
  • Published online : 12 Dec 2019
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