Sterile males in a parasitoid wasp with complementary sex determination: from fitness costs to population extinction

Table 1 Mating behavior of Venturia canescens males as a function of ploidy (diploid or haploid)

	Diploid	Haploid	χ ²	p -value
Time to 1st courtship (s)	40 ± 16	45 ± 18	0.20	0.82
Courtship duration (s)	12 ± 3	11 ± 2	0.07	0.79
Time to mating (s)	302 ± 99	71 ± 11	7.13	<0.001
Copulation duration (s)	170 ± 81	110 ± 19	0.63	0.29
Rejected males	19% (5/26)	29% (7/24)	0.68	0.42
Mating success	19% (5/26)	38% (9/24)	2.08	0.15

Mean values ± standard errors, or proportions, are given for each behavioral item. χ² and p-values were obtained in likelihood-ratio tests for the effect of male ploidy (one degree of freedom) derived from generalized linear models fitted to the data.

ISSN: 1472-6785