1921
Volume 87, Issue 4
  • ISSN: 0002-9637
  • E-ISSN: 1476-1645

Abstract

Abstract.

We surveyed the genetic ancestry and recorded the occurrence of autogeny, the developmental times, and survival rates in families of in Santa Clara County, CA, at 37°N latitude. Females in 95% of the families produced fertile egg rafts without access to blood (= autogeny) after mating in stenogamous conditions. Developmental time, survival, and egg raft production were closely correlated to temperature. Male DV/D ratios overwhelmingly matched but a microsatellite analysis revealed these were form molestus hybridized with and to a lesser extent to form pipiens, a genetic mix heretofore not recorded elsewhere. Greater DV/D ratios and larger proportions of genetic ancestry from were negatively correlated to autogeny. The combination of multiple overwintering strategies and widespread autogeny in females arising from aboveground larval sites supports the hypothesis that some North American populations of complex mosquitoes express unusual phenologies.

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2012-10-03
2017-11-22
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  • Received : 02 Feb 2012
  • Accepted : 29 Jun 2012

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