Abstract
The spatial heterogeneity of West Nile virus (WNV) activity in Sutter County, CA, as measured by mosquito infection rates, was associated with spatial variation in the prevalence of Culex blood feeding on competent passeriform hosts. Overall, 42 vertebrate host species (31 avian, 11 mammal) were identified from 601 blood-fed Culex tarsalis Coquillett and 151 blood-fed Culex pipiens L. complex females using sequences of the cytochrome c oxidase I gene and the Barcode of Life Data Systems database. WNV infection rates were low at sites where the primary vector, Cx. tarsalis, fed frequently on domestic cattle or incompetent galliform birds and high when females fed frequently on American Robins, American Crows, and Yellow-billed Magpies. Opportunistic host selection by Cx. tarsalis in combination with spatial variation in the presence of highly competent corvid hosts appeared to determine the distribution of WNV activity in rural Sutter County, CA.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 1303-1309 |
| Number of pages | 7 |
| Journal | Journal of Medical Entomology |
| Volume | 50 |
| Issue number | 6 |
| DOIs | |
| State | Published - Nov 1 2013 |
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Keywords
- Blood-feeding pattern
- Culex pipiens
- Culex tarsalis
- Transmission
- West Nile virus
ASJC Scopus subject areas
- Insect Science
- veterinary(all)
- Infectious Diseases
- Parasitology
Cite this
Host-selection patterns of Culex tarsalis (Diptera : Culicidae) determine the spatial heterogeneity of West Nile Virus enzootic activity in Northern California. / Campbell, Rebecca; Thiemann, Tara C.; Lemenager, Debra; Reisen, William.
In: Journal of Medical Entomology, Vol. 50, No. 6, 01.11.2013, p. 1303-1309.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Host-selection patterns of Culex tarsalis (Diptera
T2 - Culicidae) determine the spatial heterogeneity of West Nile Virus enzootic activity in Northern California
AU - Campbell, Rebecca
AU - Thiemann, Tara C.
AU - Lemenager, Debra
AU - Reisen, William
PY - 2013/11/1
Y1 - 2013/11/1
N2 - The spatial heterogeneity of West Nile virus (WNV) activity in Sutter County, CA, as measured by mosquito infection rates, was associated with spatial variation in the prevalence of Culex blood feeding on competent passeriform hosts. Overall, 42 vertebrate host species (31 avian, 11 mammal) were identified from 601 blood-fed Culex tarsalis Coquillett and 151 blood-fed Culex pipiens L. complex females using sequences of the cytochrome c oxidase I gene and the Barcode of Life Data Systems database. WNV infection rates were low at sites where the primary vector, Cx. tarsalis, fed frequently on domestic cattle or incompetent galliform birds and high when females fed frequently on American Robins, American Crows, and Yellow-billed Magpies. Opportunistic host selection by Cx. tarsalis in combination with spatial variation in the presence of highly competent corvid hosts appeared to determine the distribution of WNV activity in rural Sutter County, CA.
AB - The spatial heterogeneity of West Nile virus (WNV) activity in Sutter County, CA, as measured by mosquito infection rates, was associated with spatial variation in the prevalence of Culex blood feeding on competent passeriform hosts. Overall, 42 vertebrate host species (31 avian, 11 mammal) were identified from 601 blood-fed Culex tarsalis Coquillett and 151 blood-fed Culex pipiens L. complex females using sequences of the cytochrome c oxidase I gene and the Barcode of Life Data Systems database. WNV infection rates were low at sites where the primary vector, Cx. tarsalis, fed frequently on domestic cattle or incompetent galliform birds and high when females fed frequently on American Robins, American Crows, and Yellow-billed Magpies. Opportunistic host selection by Cx. tarsalis in combination with spatial variation in the presence of highly competent corvid hosts appeared to determine the distribution of WNV activity in rural Sutter County, CA.
KW - Blood-feeding pattern
KW - Culex pipiens
KW - Culex tarsalis
KW - Transmission
KW - West Nile virus
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UR - http://www.scopus.com/inward/citedby.url?scp=84890063720&partnerID=8YFLogxK
U2 - 10.1603/ME13089
DO - 10.1603/ME13089
M3 - Article
C2 - 24843936
AN - SCOPUS:84890063720
VL - 50
SP - 1303
EP - 1309
JO - Journal of Medical Entomology
JF - Journal of Medical Entomology
SN - 0022-2585
IS - 6
ER -