Monogynousspecies Polygynousspecies Kendall’s t Sign N Kendall’s t Sign N Colony size .597 .000 57 -.152 .448 20 Mode of Foundation .416 .002 50 .092 .742 13 Mobility .448 .000 73 -.167 .338 33

Table 1: The correlations between the dependent variable ‘level of polyandry’ and the three independent variables ‘colony-size’, ‘mode of colony foundation’ and ‘mobility of colonies’ for monogynous and polygynous species.