K & r values

Question 1

r selected

Answer 1

-small body size
-short life expectancy
-rapid growth
-early reproduction
-produce many small offspring
-little or no parental care
-extreme juvenile mortality (type III survivorship)
-unpredictable or variable environments
-boom/bust population growth
-pop size controlled by r (growth rate)

Question 2

K selected

Answer 2

-large body size
-long life expectancy
-slow growth
-delayed reproduction
-produce few large offspring
-high parental investment
-low juvenile mortality (type I survivorship)
-predictable, stable environments
-population sizes steady
-pop size controlled by K (carrying capacity)