Volume 91, Issue 1
  • ISSN: 0002-9637
  • E-ISSN: 1476-1645



The intracellular endosymbiont has been artificially transinfected into the dengue vector , where it is being investigated as a potential dengue biological control agent. Invasion of in natural populations depends upon the fitness of -infected relative to uninfected competitors. Although infections impose fitness costs on the adult host, effects at the immature stages are less clear, particularly in competitive situations. We look for effects of two infections, Mel and MelPop, on intra-strain and inter-strain larval competition in . Development of -infected larvae is delayed in mixed cohorts with uninfected larvae under crowded-rearing conditions. Slow developing MelPop-infected larvae have reduced adult size compared with uninfected larvae, and larvae with the Mel infection are somewhat larger and have greater viability relative to uninfected larvae when in mixed cohorts. Implications for successful invasion by these infections under field conditions are considered.


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  • Received : 03 Oct 2013
  • Accepted : 17 Mar 2014
  • Published online : 02 Jul 2014

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