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May 1, 1947The American Naturalist

The Role of Temperature and Natural Selection in Relation to the Variations in the Size of the English Sparrow in the United States

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JCJohn B. CalhounNSF NCAR High Altitude Observatory

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John B. Calhoun (1947) studied this question.

synapsesocial.com/papers/6a1bcd6d26cb5670aa9ceb6fhttps://doi.org/10.1086/281513
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