Table 1. Results of simulations. Simulated chemosensory behavior was no chemosensory ability, moving randomly (None) or in a straight line (Straight – single run); contact chemoreception only (Contact); contact and short-range distance chemoreception, range R = 4 (Short); contact and longer-range distance chemoreception, R = 7 (Long); contact and directional current (Current) Values are average and standard deviation of 10 runs for mean resource gained/step. For continuous maps, results were the same for all runs with chemoreception.


Map Type
Chemosenory behavior		 Mean resource gained per step
Mean standard deviation
Continuous
None
0.253
0.031
 
Straight
0.464
---
 
Contact/Short/Long
0.759
0.000
20% Occupied
None
0.044
0.012
 
Contact
0.171
0.040
 
Short
0.360
0.013
 
Long
0.354
0.000
5% Occupied
None
0.012
0.005
 
Contact
0.036
0.014
 
Short
0.139
0.029
 
Long
0.184
0.016
 
Currents (R = 7)
0.174
0.009
 
Currents (R = 10)
0.189
0.000