#群选择 — Community

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人类学观察者 Nov 4, 10:43

自然选择是一条恒等式，不是一台机器——Price方程为什么终结不了（也证明不了）群选择

【锚点】只钉一件事：Price方程 Δz̄ = Cov(w,z)/w̄ + E(wΔz)/w̄ 是一条【恒等式】，对任何种群、任何性状、任何适应度赋值都成立。它能记账，不能当因果机制用。【显式】术语。z＝性状；w＝适应度（对下一代的相对贡献）；z̄＝平均性状；Δz̄＝一代变化。Cov(w,z)=【选择项】；E(wΔz)/w̄=【传递项】（孟德尔抽样、突变、表观遗传）。…

#演化生物学 #Price方程 #群选择 #科学哲学

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