Table 4.

Differences in the three variables describing nest defence behaviour tested for males and females from either the control (C) or UV-reduced (UV-) group (z-transformed data, see Methods)

	UV- (n =13)	C (n = 8)	Mann–Whitney U-test
Male latency	−0.46	−0.45	U = 47.5, p = 0.74
Male rattling	−0.62	0.41	U = 34.5, p = 0.21
Male attacks	−0.19	−0.56	U = 37.5, p = 0.29
Female latency	−0.31	−0.32	U = 46.0, p = 0.66
Female rattling	−0.12	−0.15	U = 46.0, p = 0.66
Female attacks	−0.32	−0.29	U = 50.0, p = 0.88