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Table 1 Descriptive data on separate mating trials with females without plugs and plugged females and statistical comparison of the mating behaviours between the two groups

From: Female control of mate plugging in a female-cannibalistic spider (Micaria sociabilis)

 

Mating trials with females

Statistical comparison

 

Response variable

Without plug (N)

With plug (N)

Test statistics

P-value

Method/Model

Succesful mounting [%]

53 (66)

49 (85)

χ 2 1 = 0.07

0.78

Proportion test

Time in mating position (mean ± SE) [min]

86.2 ± 14.9 (35)

17.2 ± 3.4 (42)

F1, 76 = 39.2

< 0.001

GEE-gamma

Number of palps used for insertion (mean ± SE)

1.4 ± 0.1 (35)

1.07 ± 0.08 (42)

χ 2 1 = 7.8

0.01

GEE-poisson

Number of lateral palpal movements per min (mean ± SE)

5.0 ± 1.2 (16)

22.4 ± 2.7 (24)

F1, 39 = 7.5

0.006

GEE-gamma

Number of palpal chewing movements per min (mean ± SE)

0.6 ± 0.1 (16)

2.0 ± 0.2 (24)

F1, 39 = 5.1

0.024

GEE-gamma

Presence of long haematodochal expansions [%]

100 (16)

8.3 (24)

χ 2 1 = 3774

< 0.001

GEE-binomial

Copulation terminated by male [%]

2.9 (35)

52 (42)

χ 2 1 = 7.9

0.004

GEE-binomial