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Nonrandom Mating and Environmental Variance

Geographic variation in moose

Geographic variation in moose

This graph shows geographical variation in moose; body mass increase positively with latitude. Bergmann's Rule is an ecologic principle which states that as latitude increases the body mass of a particular species increases. The data are taken from a Swedish study investigating the size of moose as latitude increases as shows the positive relationship between the two, supporting Bergmann's Rule.

Source

    Boundless vets and curates high-quality, openly licensed content from around the Internet. This particular resource used the following sources:

    "Bergmann."
    http://en.wikipedia.org/wiki/File:Bergmann's_Rule.svg Wikimedia CC BY-SA 3.0.

Related Terms

  • cline
  • assortative mating
  • sexual selection
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