Anopheles arabiensis Patton (Diptera: Culicidae) larvae were reared from hatching to the adult stage in the laboratory under a range of diet and larval concentrations using a factorial design. The range circumscribed most of the larval densities and diet concentrations that would allow larval growth and survival using the particular diet formulation and water volume we tested. We determined how these variables affected three outcomes, as follows: larval development rate, survival, and wing length. As has been reported previously, negative density dependence of survival as a function of increased larval density was the prevalent effect on all outcomes when diet was limiting. When diet was not limiting, density dependence was not observed, and three cases of overcompensatory survival were seen. We discuss these results in the context of diet and larval densities for mass rearing and the effect of larval competition on control strategies.
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1 March 2011
Density-Dependent Effects in Experimental Larval Populations of Anopheles arabiensis (Diptera: Culicidae) Can be Negative, Neutral, or Overcompensatory Depending on Density and Diet Levels
J.R.L. Gilles,
R. S. Lees,
S. M. Soliban,
M. Q. Benedict
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Journal of Medical Entomology
Vol. 48 • No. 2
March 2011
Vol. 48 • No. 2
March 2011
Anopheles arabiensis
habitat conditioning
interference
mass rearing
sterile insect technique