Table 2. The differences and correlations between variables for defender and challenger males from field observations (average±SD).

	Defender	Challenger	Paired test	Correlation
Weight, n = 34	0.23±0.03 g	0.23±0.04 g	Mann-Whitney: U = 620, z = –0.51,p = 0.61	Spearman’s r = –0.16 p = 0.36
Pronotum Length, n = 35	3.62±0.18 mm	3.66±0.27 mm	Student’s t-test: t34 = 0.58,p = 0.57	Pearson’s r = 0.08, p = 0.67
Mandible Width, n = 35	2.21±0.09 mm	2.26±0.11 mm	Mann-Whitney: U = 784, z = –2.01,p = 0.04	Spearman’s r = –0.09, p = 0.96
Foreleg Femur Width, n = 35	1.08±0.04 mm	1.07±0.07 mm	Mann-Whitney: U = 520, z = 1.08,p = 0.28	Spearman’s r = 0.06, p = 0.73