3.1 & 3.2 Specialist V. Generalists and K-selected V. R-selected

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5 Terms

1
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specialist

smaller range of tolerance, narrower ecological niche makes them more prone to extinction.

2
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generalist

larger range of tolerance, broader niche makes them less prone to extinction and more likely to be invasive.

3
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Food requirements and adaptability

specialist - specific food and less ability to adapt

Generalist - broad food req. and high adaptability

4
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K-selected (quality)

  • few offspring, HEAVY PARENTAL CARE

  • usually reproduce many times

  • long lifespan, long time to sexualy mature


5
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R-selected (quantity)

  • many offspring, LITTLE TO NO PARENTAL CARE

  • many reproduce only once

  • shorter lifespan, quick sexual maturity, more likely to be invasive