title: Effects of release rates on the range of attraction of carbon dioxide to some southwestern Ontario mosquito species.
abstract: The effects of release rates of 0, 250, 500, 1,000 and 4,000 ml/min on the range of attraction of carbon dioxide to some southwestern Ontario mosquito species was determined using ramp traps placed at 3, 7, 11, 15 and 19 m from a central pressurized cylinder. For female Aedes vexans, spring Aedes spp. and Anopheles walkeri, an increase in the release rate of CO2 from 1,000 to 4,000 ml/min resulted in extension of the range of attractiveness from between 3-7 m to between 7-11 m; rates of 500 and 250 ml/min did result in an increase in number of mosquitoes in the traps. Correspondingly, significantly more mosquitoes were caught in the traps at 3 m when the rate was increased to 1,000 ml/min from 500 ml/min. For Ae. vexans, 4,000 ml/min of CO2 attracted more mosquitoes to the 7 m traps than 1,000 ml/min. In this work carbon dioxide did not result in an increase in the number of Culiseta inornata, Cs. morsitans and Culex restuans and Cx. pipiens in the traps.
authors.affiliation: Department of Environmental Biology, University of Guelph, Ontario, Canada.
authors.forename: S B
authors.initials: SB
authors.lastname: McIver
authors.forename: P E
authors.initials: PE
authors.lastname: McElligott
mesh_terms: D000818:Animals; D001522:Behavior, Animal; D002245:Carbon Dioxide; D009033:Culicidae; D003627:Data Interpretation, Statistical; D004772:Entomology / Q000295:instrumentation*; D005260:Female; D009864:Ontario; D011156:Population Density; D012212:Rheology
chemical_list: D002245:Carbon Dioxide