Posterior distribution of parameters
The intrinsic growth rates of C. dalli and G. furcata were approximately 4.8 and 3.8 (Fig. 3a), respectively. For both species, the strengths of intraspecific (αCC and αGG) and interspecific density dependence (αCG and αGC) were > 0, indicating that both intra- and interspecific interactions were competitive (Fig. 3b). Furthermore, for both species, the strength of intraspecific density dependence significantly exceeded that of interspecific density dependence (i.e., αCC > αGC and αGG > αCG, Fig. 3b).