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    Elliott Sober's distinction between selection-for and dri... — Carmelics
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    Supports→The Panaxia dominula populations were undergoing natural selection, not genetic drift

    Elliott Sober's distinction between selection-for and drift requires that drift explanations invoke population size as the primary explanatory variable.

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    • 1.Drift's defining feature is random sampling error, which scales mathematically with inverse population size, making it the essential variable.
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    • 2.Sober's distinction aims to separate drift from selection mechanistically; population size directly instantiates the drift mechanism itself.
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    • 3.Explanations invoking drift without population size fail to specify what makes the process drift rather than deterministic selection.
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    Reasons Against

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    • 1.Drift explanations can invoke effective population size, generation time, or allele frequency—multiple variables beyond just N that matter equally.
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    • 2.Population size is necessary but not sufficient; drift explanations require assumptions about mutation, mating systems, and demographic structure.
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    • 3.Sober's distinction may not require population size as *primary*; selection-for/drift differ in causal structure, not measurement emphasis.
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    Drift explanations can invoke effective population size, generation time, or all...Drift's defining feature is random sampling error, which scales mathematically w...Explanations invoking drift without population size fail to specify what makes t...Population size is necessary but not sufficient; drift explanations require assu...
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    Sober's distinction aims to separate drift from selection mechanistically; popul...Sober's distinction may not require population size as *primary*; selection-for/...The Panaxia dominula populations were undergoing natural selection, not genetic ...

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