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Natural Selection Laboratory

Fitness Landscapes, Heritability & Breeder's Equation

Selection Type

Population Parameters

200
50
100

Genetic Parameters

0.50

Selection Parameters

0.05
70

Breeder's Equation

R = h² × S

R = Response, h² = Heritability, S = Selection Differential

Selection Types:
• Directional: Favors one extreme phenotype
• Stabilizing: Favors intermediate phenotypes
• Disruptive: Favors both extremes
Generation
0
Mean Trait
50.0
Variance
100
Selection Diff (S)
0.0
Response (R)
0.0

Fitness Landscape

Trait Distribution

Evolution Over Time