Extended Data Fig. 2: Population dynamics in constant salinities.
From: Phenotypic memory drives population growth and extinction risk in a noisy environment
a. Time series of population sizes for all lines of ancestral genotype A in the 3 constant salinities (light blue: 0.8M, blue: 2.4M, dark blue: 3.2M – 5 replicates each) are plotted (shaded lines),together with the mean population size (solid line) ± standard deviation (dashed lines).Population sizes> 1,000 are plotted on the log scale and mean and standard deviation were estimated on the log scale, excluding extinct lines. Note that at 3.2M, the population size slowly decreases over time because its exponential growth slightly undercompensates the biweekly dilution. b. Distribution of population size in genotype A during the stationary phase (except at 3.2M where no stationary phase is reached), for all constant environmental treatments. Note the reduced variances and skewnesses as compared with the stochastic environments (Fig. 2). c. and d.: Growth rate (r) and carrying capacity (K) of all ancestral genetic backgrounds, estimated in the 3 constant salinities, with their standard errors. Salinity has a significant effect on K (p = 5.2.10-15, likelihood ratio test) but this was neglected in the population dynamic analysis in fluctuating environment because the biweekly 15% dilution implied that exponential growth was prevalent in our experiment (Extended Data Fig. 1).
