Table 3. Effects of temperature, sex and head size or body weight on the Julian date of emergence of O. cornuta and O. bicornis.

We compared three different temperature treatments (warm vs. medium vs. cold overwintering temperature treatment). Body weight was corrected for body size [mg/mm²]. Non-significant predictors (p > 0.05) were removed from the model in a manual stepwise model selection. Julian date 100 = 10th of April.

	O. cornuta				O. bicornis
	Df	F	p		Df	F	p
Julian date of emergence				Julian date of emergence
Temperature	2	3,641.46	<0.001	Temperature	2	3,499.88	<0.001
Sex	1	794.33	<0.001	Sex	1	3,977.72	<0.001
Head size	1	16.83	<0.001	Head size	1	26.70	<0.001
Temperature : Sex	2	80.84	<0.001	Temperature : Sex	2	47.11	<0.001
				Temperature : Head size	2	5.98	0.003
				Sex : Head size	1	0.01	0.921
				Temperature : Sex : Head size	2	3.15	0.043
Julian date of emergence				Julian date of emergence
Temperature	2	3,868.56	<0.001	Temperature	2	3,734.16	<0.001
Sex	1	843.87	<0.001	Sex	1	4,243.99	<0.001
Body weight	1	74.83	<0.001	Body weight	1	76.39	<0.001
Temperature : Sex	2	77.91	<0.001	Temperature : Sex	2	46.95	<0.001
Temperature : Body weight	2	3.60	0.028	Temperature : Body weight	2	8.39	<0.001
				Sex : Body weight	1	0.01	0.913
				Temperature: Sex : Body weight	2	8.84	<0.001