There was an error published in J. Exp. Biol. (2017) 220, 1947-1951 (doi: 10.1242/jeb.157552).

The in vivo bite force values were overestimated as a result of incorrect settings of the piezoelectric force transducer used to measure bite forces; all bite force values are 2.4 times higher than they should be. This bias does not affect the statistical results and conclusions of the paper.

Correct versions of Fig. 2 and Table 2 are given below.

Fig. 2.
Fig. 2. Boxplot of bite forces of the three M. minutoides groups. Data are shown for males (n=19), XX females (n=18) and X*Y females (n=17). Limits of the boxes represent the upper and lower quartiles, the bar is the median, the whiskers represent the maximum and minimum value, or 1.5 times the interquartile distance in cases where outliers are present, and the circles are outliers. Asterisks indicate significant differences between means. Tukey's HSD test revealed a significant increase in bite force in X*Y females compared with XX females (P<0.01).
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Boxplot of bite forces of the three M. minutoides groups. Data are shown for males (n=19), XX females (n=18) and X*Y females (n=17). Limits of the boxes represent the upper and lower quartiles, the bar is the median, the whiskers represent the maximum and minimum value, or 1.5 times the interquartile distance in cases where outliers are present, and the circles are outliers. Asterisks indicate significant differences between means. Tukey's HSD test revealed a significant increase in bite force in X*Y females compared with XX females (P<0.01).

Fig. 2.
Fig. 2. Boxplot of bite forces of the three M. minutoides groups. Data are shown for males (n=19), XX females (n=18) and X*Y females (n=17). Limits of the boxes represent the upper and lower quartiles, the bar is the median, the whiskers represent the maximum and minimum value, or 1.5 times the interquartile distance in cases where outliers are present, and the circles are outliers. Asterisks indicate significant differences between means. Tukey's HSD test revealed a significant increase in bite force in X*Y females compared with XX females (P<0.01).
View largeDownload slide

Boxplot of bite forces of the three M. minutoides groups. Data are shown for males (n=19), XX females (n=18) and X*Y females (n=17). Limits of the boxes represent the upper and lower quartiles, the bar is the median, the whiskers represent the maximum and minimum value, or 1.5 times the interquartile distance in cases where outliers are present, and the circles are outliers. Asterisks indicate significant differences between means. Tukey's HSD test revealed a significant increase in bite force in X*Y females compared with XX females (P<0.01).

Table 2.

Results of Tukey's HSD test for differences in bite force, mandible centroid size and skull centroid size

Results of Tukey's HSD test for differences in bite force, mandible centroid size and skull centroid size
Results of Tukey's HSD test for differences in bite force, mandible centroid size and skull centroid size
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© 2018. Published by The Company of Biologists Ltd
2018