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✨ Magic Traits

"Magic traits" are pleiotropic: the same gene affects both ecological adaptation AND mate choice. This creates automatic reproductive isolation as a byproduct of ecological divergence.

0 = no link, 1 = perfect pleiotropy
Generation: 0
Ecological Divergence: 0.00
Mating Assortment: 0.00
Reproductive Isolation: 0.00
Niche 1 Pop: 0
Niche 2 Pop: 0
Magic Traits: Examples include body size in sticklebacks (affects diet AND mate preference), wing patterns in Heliconius (mimicry AND mate recognition), and MHC genes (immunity AND mate choice). Speciation becomes "automatic" through ecological adaptation.