Table 1. Evolvable parameters of foragers.

Category	Parameter	Min	Max	St. dev.	Units
Decision making (probability to choose action)	p V (predator scan)	0.0	1.0	0.2
	p M (move after move)	0.0	1.0	0.2
	p SE (food scan after eat)	0.0	1.0	0.2
	p SN (food scan after nofood)	0.0	1.0	0.2
	p MTF (move to food)	0.0	1.0	0.2
Vigilance	t V (scan duration)	0.167	1.99	0.4	min
	a V (scan angle)	0.0	360	72	degrees
Fleeing	t P (flee duration)	0.0	-	5	min
Grouping	a R (repulsion turning angle)	0.0	360	72	degrees
	a A (attraction turning angle)	0.0	360	72	degrees
	z R (repulsion zone)	0	50	10	m
	z A (attraction zone)	z R	50	10	m
	n R (tolerated neighbors)	0	-	1	m
Movement	t M (move duration)	0.167	1.99	0.4	min
	d M (move distance)	0.0	-	3	m
	a M (move angle)	0.0	360	72	degrees
Foraging	t F (foodscan duration)	0.167	1.99	0.4	min
	d F (foodscan distance)	0.0	-	3	m
	a F (foodscan angle)	0.0	360	72	degrees

The standard deviation of mutation is scaled to be approximately 0.2 times the range of the parameter. The maximum of durations was imposed due to how the model was programmed, but was high enough not to affect the results.