Table 1.

Model parameters that were randomly sampled from different distributions for each simulation run independently. (Note: the range of body-mass ratios, Z, is consistent with empirical data (Brose et al. 2006a).)

variable	distribution	normal distribution		equation	description
		mean	s.d.
y	normal	10	2	(2.1a) and (2.1b)	maximum consumption rate
h	normal	1.5	0.25	(2.2)	Hill exponent
c	normal	0.5	0.25	(2.2)	predator interference coefficient
Z	normal	101	102	(2.5)	consumer–resource body-mass ratio
S l	normal	4	2	(2.7)	supply concentration of nutrient l
S	normal	25	5		species richness
C	normal	0.15	0.025		connectance
K li	uniform	(range 0.1–0.2)		(2.6)	producer i's half-saturation for nutrient l