Dispersal - Genetic Diversity in Establishing Plant Populations: Founder Number and Geometry - page 191

5000

A

a

c

4000

a

b

c

N

b

3000

a

c

N

b

a

N

c

b

N

2000

a

c

b

N

a

b

N c

a

b

N

c

1000

N a b

c

N b

a

c

b N

a

c

N b

a c

b

N a c

N b c

a

b c

a N

N a b c

0

0 5 10 15

1.00

NN aa bb cc

c

a

c

c

c

c

0.95

c c

c

a c

cc c

c

a

a

a

a

b a

a

a

aa a

a

N

b

b

0.90

b

b b

b

b

b

b

N b b

b

N

0.85

N

N

N

N

N

N N N

N

N

B

0.80

0 5 10 15

GENERATION

Fig. 12.9 Population growth (A) and observed heterozygosity (B) for four bisexual annual
populations with identical initial input conditions (see text) except as follows. Within each
trial, offspring and microgamete dispersal distance are always equal, but across trials, dispersal
distances and probabilities are the following:
N: 100% probability of being dispersed within 5 grid units.
a: 60% within 5 grid units; 30% 6-12 units; 07% 13-21 units; 03% 22-300 units.
b: 90% within 5 grid units; 06% 6-12 units; 03% 13-21 units; 01% 22-300 units.
c: 45% within 5 grid units; 35% 6-12 units; 15% 13-21 units; 05% 22-300 units.