Wednesday, 17 November 2004 - 9:24 AM
1001

Effects of blood meal hosts and sugar availability on reproductive success of Aedes albopictus and Aedes aegypti (Diptera: Culicidae)

Marieta A.H. Braks, marietab@ucr.edu, University of California Riverside, Department of Entomology, 900 University Avenue, Riverside, CA, Steven A. Juliano, sajulian@ilstu.edu, Illinois State University, Department of Biological Sciences, Normal, IL, and L. Philip Lounibos, lounibos@ufl.edu, University of Florida, Florida Medical Entomology Laboratory, 200 9th Street S.E, Vero Beach, FL.

Life-table experiments were conducted with Aedes albopictus and Aedes aegypti to compare the effects of sugar presence or absence and host species (human or chicken) on survival, daily and life time fecundity, and biting frequency. For biting frequency only, there was a significant interaction between host species and mosquito species. Aedes albopictus females fed on chickens imbibed blood nearly twice as often as did females fed on humans, or as A. aegypti females. Females of both mosquito species had superior survival and life time fecundity when fed on human blood. No significant interactions between the effects of sugar availability and mosquito species were found, indicating similar effects of sugar availability on both mosquito species for these four variables. In absence of sugar, significant higher biting frequencies and, accordingly, superior daily fecundities were found for both mosquito species. The results indicate that superior reproductive success on human blood without sugar might not be limited to anthropophilic mosquito species such as A. aegypti.


Species 1: Diptera Culicidae Aedes Aedes albopictus (Asian tiger mosquito)
Species 2: Diptera Culicidae Aedes Aedes aegypti (yellow fever mosquito)
Keywords: vector, dengue

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