INTRA- AND INTERPOPULATION VARIATION IN THE THERMAL CHARACTERISTICS OF PREADULT DEVELOPMENT OF TWO LATITUDINALLY DIVERSE POPULATIONS OF TOXORHYNCHITES RUTILUS SEPTENTRIONALIS (DIPTERA: CULICIDAE)

Abstract

AbstractLinear regression analysis was used to estimate the developmental threshold, t0, and thermal constant, K, for all preadult stages of two laboratory colonies of the mosquito Toxorhynchites rutilus septentrionalis (Dyar and Knab). The colonies originated from Newark, Delaware and Lake Charles, Louisiana. The physiological and ecological significance of the within- and the between-population differences in the slopes of the regressions,t0's and K's, are discussed.