Which of the following statements is true of the relationship between productivi

Question

Which of the following statements is true of the relationship between productivity and species richness? Select all that apply.

A)Species richness varies depending on whether standing crop or annual productivity are used as independent variables.
B)Species richness decreases with increasing productivity

C)Species richness is maximal at moderate productivity then declines with increasing productivity

D) Species richness varies with productivity depending on community type and scale being compared

E) Species richness varies depending on whether standing crop or annual productivity are used as independent variables

Explanation / Answer

Ans: Among these five options, the statements like A,E, D and B are true (A and E are same)because the species richness depends on the following statements mentioned below.

A) Species richness varies depending on whether standing crop or annual productivity are used as independent variables.
B) Species richness decreases with increasing productivity (The number of species decreases towards high productivity due to the decrease in both the number of individuals and the size of the species pool.
D) Species richness varies with productivity depending on community type and scale being compared
E) Species richness varies depending on whether standing crop or annual productivity are used as independent variables

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