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R-selected vs . K-selected

R-selected vs . K-selected. reproduction strategy. 29:17. DEFINITION. In ecology, r/K selection theory relates to the selection of combinations of traits in an organism that trade off between quantity and quality of offspring. formula. N -----population,

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R-selected vs . K-selected

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  1. R-selected vs.K-selected reproduction strategy 29:17

  2. DEFINITION • In ecology, r/K selection theory relates to the selection of combinations of traits in an organism that trade off between quantity and quality of offspring.

  3. formula • N -----population, • r----- the maximum growth rate, • K----- the carrying capacity of the local environment, • dN/dt-----the derivative of N with respect to time t

  4. DEFINITION • r-strategists: The focus upon either increased quantity of offspring at the expense of individual parental investment high r, low K • K-strategists: Reduced quantity of offspring with a corresponding increased parental investment low r, high K

  5. r-selection vsK-selection rapidly

  6. r-selection vsK-selection

  7. r-selection vsK-selection 35：49

  8. application

  9. application

  10. 250 thousand a day 100 million a year

  11. Life is a magic Thanks for listening

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