Density-dependent reproduction
The number of female founders was negatively correlated with mean recruitment (R2 = 0.86, y recruitment= 2.39 – 0.063x number, F 1, 6 = 16.51, P = 0.007 for 2012; R2 = 0.85, yrecruitment = 1.43 – 0.041x number,F 1, 6 = 15.93, P = 0.007 for 2015; Fig. 3A) and with the proportion of reproductive females (R2 = 0.97, y proportion = 4.23 – 0.008x number, F 1, 6 = 90.42,P < 0.001 for 2012; R2 = 0.72, yproportion = 0.72 – 0.021x number,F 1, 6 = 6.34, P = 0.045 for 2015; Fig. 3B) for both years. Male-founder numbers were negatively correlated with the proportion of reproductive males in 2015 (R2 = 0.90, yproportion = 0.78 – 0.015x number,F 1, 6 = 24.28, P = 0.003; Fig. 3C), but not in 2012 (F 1, 6 = 2.93, P = 0.138).