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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)

From: Female attractiveness affects paternal investment: experimental evidence for male differential allocation in blue tits

 

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