close to significanceP ≤ 0.03
Correlations between population-mean growth rate and variance in monthly mean temperature at the field sites were significantly positive at 12°C and 22°C and close to significance at 18°C ( n = 9, 12°C: r = 0.73, P ≤ 0.03; 18°C: r = 0.61, P = 0.08; 22°C: r = 0.85, P ≤ 0.004) ( Fig. 2 B).