Average values for the response in the F1 experiment, for intra- and interpopulation crosses. Vertical bars are 95% confidence intervals; significant differences between interpopulation ('resident × immigrant') crosses and the intrapopulation ('resident × resident') cross: *: P-value < 0.05; **: P-value < 0.01 (colour code as below). Response in the intrapopulation 'immigrant × immigrant' crosses are also shown. Black horizontal bar, resident population (TOS); green circle, immigrant HOS; orange square, immigrant CHI; blue triangle, immigrant TUR. The values for the two interpopulation cross combinations are averaged. FP: fertilisation proportion; EHP: egg-hatching proportion; CV: clone viability; R: net growth rate of the viable F1 clones; MPC: proportion of male-producing clones; and FDE: number of females produced per incubated diapausing egg.
Tortajada et al. BMC Evolutionary Biology 2010 10:312 doi:10.1186/1471-2148-10-312