Age and Body Size Effects on Blood Meal Size and Multiple Blood Feeding by Aedes aegypti (Diptera: Culicidae)

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Abstract
Ten-day-old, parous Aedes aegypti (L.) had a higher threshold of blood meal size for the inhibition of continued host-seeking than did 5-d-old, nulliparous females of the same size. Older females of a smaller-bodied cohort had a higher threshold of blood meal size for the initiation of egg development than did younger females. In contrast, older larger-sized females had a lower blood meal-size threshold for egg development. The blood of paired avian hosts was marked with rubidium and cesium to study the effect of age and body size on the frequency of multiple blood feeding. Chronologically old females had a higher frequency of multiple blood feeding than younger females. In the laboratory, the frequency of multiple blood feeding among larger-sized females was higher than among small-sized females.

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