Biology Reference
In-Depth Information
population will consist of cooperator genotypes. With n
q
= 4 and n
q
= 5 there is obvi-
ously less opportunity for parasitism, and cooperators reach higher frequencies. How-
ever, then the system becomes more sensitive to the effects of spatial mixing; with
n
q
= 6 even at D = 0 successfully cooperating neighborhoods are disintegrated more
often than that they are formed or maintained, and cooperative behavior is no longer
selected.
Figure 1.
Stationary genotype distributions of the QS-disabled set of simulations. Fixed parameters:
basic metabolic burden: M
0
= 100.0; metabolic cost of quorum signal production: m
s
= 3.0;
metabolic cost of quorum signal response: m
r
= 1.0; fitness reward factor: r = 0.9; mutation rates:
μ
s
= μ
r
= 0.0, μ
c
= 10
−
4
. Screened parameters: metabolic cost of cooperation (m
c
), quorum threshold
(ne) and dispersal (D). Simulations lasted for 10.000 generations and they were initiated with the
“All-Ignorant” (csr) state.
