reference : Weather variability affects abundance of larval Culex (Diptera: Culicidae) in storm water catch basins in suburban Chicago

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Bibliographic fields
reftype Journal Article
Abstract Culex pipiens L. (Diptera: Culicidae) and Culex restuans Theobald are the primary enzootic and bridge vectors of West Nile virus in the eastern United States north of 36 degrees latitude. Recent studies of the natural history of these species have implicated catch basins and underground storm drain systems as important larval development sites in urban and suburban locales. Although the presence of larvae in these habitats is well-documented, the influence of abiotic factors on the ecology of Culex larvae developing in them remains poorly understood. Therefore, we examined the effects of multiple abiotic factors and their interactions on abundance of Culex larvae in catch basins in the Chicago, IL, metropolitan area. Low precipitation and high mean daily temperature were associated with high larval abundance, whereas there was no correlation between catch basin depth or water depth and larval abundance. Rainfall was an especially strong predictor of presence or absence of larvae in the summer of 2010, a season with an unusually high precipitation. Regression tree methods were used to build a schematic decision tree model of the interactions among these factors. This practical, visual representation of key predictors of high larval production may be used by local mosquito abatement districts to target limited resources to treat catch basins when they are particularly likely to produce West Nile virus vectors.
Author Gardner, A. M.; Hamer, G. L.; Hines, A. M.; Newman, C. M.; Walker, E. D.; Ruiz, M. O.
DOI 10.1603/ME11073
Date Mar
ISSN 1938-2928
Issue 2
Journal Journal of Medical Entomology
Keywords Analysis of Variance; Animals; Chicago; *Culex; Larva; Models, Statistical; Population Density; *Weather
Notes Gardner, Allison M Hamer, Gabriel L Hines, Alicia M Newman, Christina M Walker, Edward D Ruiz, Marilyn O eng R37 AI021884/AI/NIAID NIH HHS/ Research Support, N.I.H., Extramural Research Support, Non-U.S. Gov't Research Support, U.S. Gov't, Non-P.H.S. 2012/04/13 06:00 J Med Entomol. 2012 Mar;49(2):270-6.
Pages 270-276
Title Weather variability affects abundance of larval Culex (Diptera: Culicidae) in storm water catch basins in suburban Chicago
Volume 49
Year 2012
Bibliographic identifiers
.reference_type 0
_record_number 18002
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