Table 1.

Tendency to build a web in the beginning of instar II. Nominal logistic regression (log. reg.) on the proportion of spiders building a web on the first day of instar II. Ordinal logistic regression of the number of webs produced over the first 3 days of instar II.

	nominal log. reg.			ordinal log. reg.
source of variation	d.f.	χ2	p	d.f.	χ2	p
prey nutrient quality (PQ)	1	11.4	0.0007	1	5.69	0.017
prey availability (PA)	1	10.7	0.0011	1	0.52	0.47
PQ × PA	1	0.07	0.79	1	0.53	0.47