Eastern Pacific molluscan provinces and latitudinal diversity gradient: no evidence for "Rapoport's rule".

作者： K. Roy , D. Jablonski , J. W. Valentine

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摘要: Abstract "Rapoport's rule," which has gained wide acceptance as a potential explanation for latitudinal and other diversity gradients, holds that mean range of species decreases toward the equator. We analyzed ranges 2838 eastern Pacific marine molluscan species, subset figured in original formulation Rapoport's rule, failed to find predicted trends. Instead, gradients magnitudes appear vary independently, with spatial distribution major oceanographic barriers exerting strong influence on ranges. Biogeographic structure should, therefore, be an important element assessment patterns.

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Eastern Pacific molluscan provinces and latitudinal diversity gradient: no evidence for "Rapoport's rule".

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Eastern Pacific molluscan provinces and latitudinal diversity gradient: no evidence for "Rapoport's rule".

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