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1 May 2011 Bloodmeal Host Congregation and Landscape Structure Impact the Estimation of Female Mosquito (Diptera: Culicidae) Abundance using Dry Ice-Baited Traps
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Abstract
Vegetation patterns and the presence of large numbers of nesting herons and egrets significantly altered the number of host-seeking Culex tarsalis Coquillett (Diptera: Culicidae) collected at dry ice-baited traps. The numbers of females collected per trap night at traps along the ecotone of Eucalyptus stands with and without a heron colony were always greater or equal to numbers collected at traps within or under canopy. No Cx. tarsalis were collected within or under Eucaplytus canopy during the peak heron nesting season, even though these birds frequently were infected with West Nile virus and large number of engorged females could be collected at resting boxes. These data indicate a diversion of host-seeking females from traps to nesting birds reducing sampling efficiency.
© 2011 Entomological Society of America
Tara Thiemann, Brittany Nelms and William K. Reisen "Bloodmeal Host Congregation and Landscape Structure Impact the Estimation of Female Mosquito (Diptera: Culicidae) Abundance using Dry Ice-Baited Traps," Journal of Medical Entomology 48(3), (1 May 2011). https://doi.org/10.1603/ME10273
Received: 14 December 2010; Accepted: 1 March 2011; Published: 1 May 2011
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