Figure 3 The posterior median of six population parameters in 33 quadrats. Box-and-whisker plots show the median (horizontal bold line inside the box), interquartile range (box), range (whiskers), and outliers (black dots). (a) Intrinsic growth rate of Chthamalus dalli and Gloiopeltis furcata . (b) The strengths of intra- and interspecific density dependence of C. dalli and G. furcata . rC and rG are the intrinsic growth rates of C. dalli and G. furcata , respectively, αCC and αGG are the strength of intraspecific density dependence for C. dalli andG. furcata , respectively, and αCG is the strength of interspecific density dependence of G. furcata on C. dalli , and vice versa for αGC.