13. (5 points) Which of the following is true about scramble competition relativ

Question

13. (5 points) Which of the following is true about scramble competition relative to contest competition Populations are more likely to show overshoots before decreasing to an equilibrium population size; Populations are more likely to grow, then crash to extinction following exhaustion of resources; Population growth rates are controlled more by current resource levels than current populatio size; Population growth rates respond to past population sizes through the amount of resource depletion caused by those populations; All of the above; a. b. c. d. e. 14. (2 points each) Match up the terms in the left with the correct answer at the right. In the logistic equation: a. Per capita growth rate is b. Carrying capacity is c. Population growth rate is d. Population size at time t is e. Maximum per capita growth rate 2. r(1-N/K) 3. N(t) 4. rN(1-N/K) 5. K 6 (1-N/K)

Explanation / Answer

13) In scramble resource partitioning competition resources are being utilized by all the animals from a common pool which ensures equal distribution of the resources. All of the options are true as populations keep multiplying and reproducing till resource exhaustion occurs causing the inability to reproduce which further causes decline to an equilibrium population size. Population growth is more easily controlled by the resources available than by the present population size. This also ensures that the second generation of population growth rate is limited by the growth rate of the previous population and its size as it will directly control the resources utilized by the population.

The second population grows enough to survive till the resources get exhausted and the population crashes again.

14) a) Per capita growth rate - 2) r(1-N/K)

b) Carrying capacity - 5) K

c) Population Growth Rate - 4) rN(1-N/K)

d) Population size at time t - 3) N(t)

e) Maximum per capita growth rate - 1) r

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