Spatial distribution of adult mosquitoes (Diptera: Culicidae) in habitats associated with the rice agroecosystem of northern California

The objective of this study was to determine whether abundance, blood feeding rates, and sex ratios of adult Anopheles freeborni Aitken and Culex tarsalis Coquillett were associated significantly with either rice field, pasture, riparian, or mixed habitats found within the rice culture agroecosystem...

Full description

Saved in:
Bibliographic Details
Published in:Journal of medical entomology 1996-05, Vol.33 (3), p.344-350
Main Authors: Wekesa, J.W. (Centers for Disease Control, Chamblee, GA.), Yuval, B, Washino, R.K
Format: Article
Language:English
Subjects:
ADULTE
ADULTOS
Agriculture
Animals
Anopheles
ANOPHELES FREEBORNI
CALIFORNIA
CALIFORNIE
CAMPO
CHAMP
COMPORTEMENT ALIMENTAIRE
Culex
CULEX TARSALIS
Culicidae
Demography
DENSIDAD DE LA POBLACION
DENSITE DE POPULATION
DIFERENCIAS BIOLOGICAS
DIFFERENCE BIOLOGIQUE
Diptera
ECOSISTEMA
Ecosystem
ECOSYSTEME
Female
HABITAT
HABITOS ALIMENTARIOS
Insect Bites and Stings
Male
Oryza
ORYZA SATIVA
PASTIZALES
PATURAGES
PROPORCION DE LOS SEXOS
SEX RATIO
Citations: Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The objective of this study was to determine whether abundance, blood feeding rates, and sex ratios of adult Anopheles freeborni Aitken and Culex tarsalis Coquillett were associated significantly with either rice field, pasture, riparian, or mixed habitats found within the rice culture agroecosystem of northern California. Significantly higher numbers of adult An. freeborni occurred in riparian and mixed habitats compared with rice and pasture habitats. Such a pattern was not evident for Cx. tarsalis. Riparian and pasture habitats contained significantly higher proportions of blood fed An. freeborni females than did rice and mixed habitats, however, the proportions of blood fed Cx. tarsalis females did not vary significantly among habitat types. The proportions of blood fed An. freeborni and Cx. tarsalis females in riparian habitats decreased with increasing abundance. There was no correlation between blood feeding rates and abundance for An. freeborni and Cx. tarsalis females in the other habitat types. The sex ratio of An. freeborni in pasture and riparian habitats was significantly female biased, unlike the other habitats which did not differ significantly from unity (1:1). Overall, riparian and mixed habitats contained greater numbers of adult mosquitoes; therefore, surveillance and control efforts of these mosquito species should be focused on such habitats
ISSN:0022-2585
1938-2928
DOI:10.1093/jmedent/33.3.344