The Rate of Reproduction - Genetic Diversity in Establishing Plant Populations: Founder Number and Geometry - page 142

0.10

A

a

a

aa a

a

aa a

a

0.05

a

c

c g

g

cc cc c

i

g

i g

c i g

c i g

i

g

c i g

g

i

c

i g

a

i g

c

g

i

g

i c

a

g

c

i

g

0.0

c

a

i

g

c a

c

a i

g

i a

g

c

a

-0.05

0 6 12 18

1000

a c g i

B

i

i

i

i i

i i i

i i i

g i i i

900

g

g

g

g

g

g g g

g g

g g g

g g g

c

800

a

c

700 c

c

c

c

c c

c

c

c c

a c c c

c c

600

a

500

a

a

a

400

a

a

a

a

a

a

a

a

a

a a

300

0 6 12 18

GENERATION

Fig. 10.2 Change in mean F values (A) and unique alleles retained (B) across generations for
populations with identical initial input conditions except the input rate of reproduction, r,
which is: for trial population a = 1.3; c = 1.78; g = 2.8, i = 4. Means are based on 30 replicate
runs per trial.
creates population subdivision, and the small numbers of individuals in
each group promote localized inbreeding. In those earlier examples, the
smallest distance between divided groups was greater than 2,560 grid units.
Given that offspring and pollen dispersal maximum distances were 5 grid
units, the greatest distance for allele dispersal from a particular founder
over the 14 generations analyzed is 70 units. In other words, there was no
intermixing of alleles from the separated founding groups.