Mate choice experiment using only lab-reared crickets.

<p>Generalised linear-mixed model analyses looking at the propensity of males to start singing, and the propensity of females to mount and mate within 10 minutes to con- and heterospecific partners. The experimental set-up between the mate choice tests differed slightly. In this experiment each individual was tested against both a hetero- and conspecific partner and we controlled for presentation order (see main text for details). The <i>G. campestris</i> used in this experiment were the F1-generation from wild-caught individuals and reared in the lab in 2009. The <i>G. bimaculatus</i> were raised in the lab for several generations. Explanatory variables retained in the final model are in bold.</p

Mate choice experiments.

<p>Males and females of the two species were paired in con- and heterospecific pairs and the proportion of males starting courtship song (<b>A</b>, <b>D</b>), females mounted (<b>B</b>, <b>E</b>) and mated after 10 minutes (<b>C</b>, <b>F</b>). The top row (<b>A</b>–<b>C</b>) represents trials using wild-caught <i>G. campestri</i>s (2009 and 2010) of unknown age and mating status. The captive bred offspring of the wild-caught <i>G. campestri</i>s (2009) were used in a subsequent mate choice experiment (<b>D</b>–<b>F</b>) in which e.g., rearing condition, mating status and mating sequence could be controlled for (see main text for more details). Lab-reared <i>G. bimaculatus</i> were used for all trials.</p

Mate choice experiment using wild-caught <i>G. campestris</i> and lab-reared <i>G. bimaculatus</i>.

<p>Generalised linear-mixed model analyses looking at the propensity of males to start singing, and the propensity of females to mount and mate within 10 minutes to con- and heterospecific partners (see main text for details). The <i>G. campestris</i> used in this experiment were wild-caught in 2009 and 2010. The <i>G. bimaculatus</i> were raised in the lab. Explanatory variables retained in the final model are in bold.</p