Table 1.
Linear regression analyses of results from non-competitive crosses.
Figure 1.
Predicted proportion (filled bars) and observed proportion (open bars) of conspecific offspring sired in each competition cross. Asterisks mark cases of CSP that are significant (G-test): ***P<0.001.
Figure 2.
CSP is greatest in crosses that are compatible between species.
Plot of observed against predicted proportion of conspecific offspring sired in each competitive cross. The solid line indicates no difference (i.e. no competition). The five points substantially above the line show significant CSP, and 4 of these occurred in cases in which <70% of offspring were predicted to be sired by the conspecific male in the absence of competition.
Table 2.
Results from competition crosses.