L567 lecture 6
Evolutionary Game Theory
But first, a Quiz…
1.
What is the heritability for two legs in our class?
2.
What do you think would be the general effect of strong
selection on additive genetic variance?
3.
Will natural selection always increase population mean fitness?
4.
R=
∆
ζ
=ς
Α
Β
(
ϖ
ι
,
ζ
ι
29
.
Where are the equilibria?
5.
When will genetic drift override natural selection?
6.
Can there be additive genetic variation in an asexual
population?

Motivation: So far we have covered
1.
∆
p
for a 1locus, twoallele model in a diploid population.
2.
R=
∆
ζ
=η
2
Σ
for a single trait.
We also considered the population
genetic underpinnings for
∆
z
for a single trait.
3.
What are the limitations (if any) of these models?
4.
For both cases, we were primarily interested in “directional
selection.”
That is delta p was always positive (or negative) as a
function of p.
It did not change signs.
Similarly,
∆
z
did not
change from positive to negative depending on the value of
z
.
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 Fall '10
 Curtis
 Evolution, Population Genetics, Game Theory, Evolutionarily stable strategy, BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB

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