Figure 2

Time to mate in relation to time to first call. Results show only successful matings (n = 73), time to first call refers to the start of courtship behavior. Triangles represent G. pennsylvanicus males and circles represent G. firmus males. Conspecific matings are shown in light blue and heterospecific matings are shown in red. Time to mate was influenced by time to first call (P = 0.01; no mating took place in the absence of calling). There were no differences in time to mate between conspecific and heterospecific crosses however male G. firmus were faster to mate than male G. pennsylvanicus (P = 0.006).