Phenotypic variance in sexual offspring production. When aphids are subjected to different day lengths, the induction of sexual offspring follows a logistic curve. Near the critical day length (were 50% of the offspring are sexual) there is a transient period in which the choice of offspring type is stochastic. I expect that clones from predictable (black, circles) and unpredictable (red, triangles) environments differ in slope of day length response and thus in the extent of the transient period. In total, 12 clones, each from a different environment, will be tested.

 
  Part of: Joschinski J (2016) Benefits and costs of aphid phenological bet-hedging strategies. Research Ideas and Outcomes 2: e9580. https://doi.org/10.3897/rio.2.e9580