Fig. 4. Box plot of P_c for 13 species of grasshopper. Numbers at the bottom of the graph indicate mean body mass (g) for that species. The boundaries of each box mark the 25th percentile and the 75th percentile. The line within each box indicates the median P_c value. Error bars mark the 10th and 90th percentiles. The tree below lists family, subfamily and tribe for each species. Species abbreviations as in Fig. 1.