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Mechanisms for Microevolution III

Mechanisms for Microevolution III. Human Impact. Human Impact on Evolution. Humans actions have widespread effects on all species. These interactions become agents of natural selection and have the potential to influence the evolution of species. The evolutionary consequences can be:

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Mechanisms for Microevolution III

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  1. Mechanisms for Microevolution III Human Impact

  2. Human Impact on Evolution • Humans actions have widespread effects on all species. • These interactions become agents of natural selection and have the potential to influence the evolution of species. • The evolutionary consequences can be: • Intentional – in artificial selection, individuals with desired traits are selected to mate • Unintentional – habitat loss decreases pop. size and can cause genetic bottlenecks

  3. Artificial Selection • Humans choose individual animals or plants to breed because they have desirable traits.

  4. Artificial Selection - Plants 0

  5. Hunting & Fishing

  6. Use of Chemicals

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