Fig. 4
From: Phenotypic coupling of sleep and starvation resistance evolves in D. melanogaster
Coupling of starvation resistance and sleep is different in ME and PC populations. a-b Regression analysis of starvation resistance and percent of the 24 h day flies slept when starved for (a) ME and (b) PC. c-d Regression analysis of starvation resistance and percent change in sleep when starved for (c) ME and (d) PC flies. Each data point denotes the average of one of the 10 lines. Female data points are red circles with a solid regression line, while males are blue diamonds with a dashed line. The grey area denotes the confidence interval. * denotes p < 0.05 and ** denotes p < 0.01