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Biodemography of the Mediterranean fruit fly: aging, longevity and adaptation in the wild
Authors:Carey James R
Affiliation:
  • Department of Entomology, University of California, Davis, CA 95616, USA
  • Center for the Economics and Demography of Aging, University of California, Berkeley, CA 94720, USA
  • Abstract:The purpose of this paper is to summarize recent research on longevity, aging and adaptation in wild medfly populations and in a close relative of the medfly. The key findings include a new life table identity that relates age structure and the distribution of deaths in stationary populations, seasonal variation in the post-capture longevity of trapped medflies of unknown age, greater longevity of once-wild (wild-caught) adult medflies relative to never-wild (laboratory-emerged) individuals, differences in age specificity of different medfly field capture methods, large variation in the sex-specific longevity of six medfly global biotypes (e.g. Kenya; Brazil; Greece), and the extraordinary longevity of the natal fruit fly — a sister species of the medfly. The discussion contains a listing of discoveries derived from this recent research that appear to be unique to the investigations on medfly aging in the wild. It is suggested that studies of aging in wild populations of Drosophila melanogaster have the potential to exploit this model organism in an entirely new aging research domain and thus complement the already deep literature on aging in this species.
    Keywords:Ceratitis capitata   Life table identity   Captive cohort   Age bias   Medfly biotypes   Natal fruit fly   Ceratitis rosa
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