Which of the following is a prediction of the high-productivity hypothesis that is proposed to explain the latitudinal gradient in species diversity?
A) Speciation rates should decline as niche differentiation occurs.
B) Larger and older regions should have more species diversity.
C) Speciation rates increase as niche differentiation occurs.
D) Smaller and younger regions should have higher species diversity.

Question

Quizplus · Accepted Answer

The high-productivity hypothesis proposes that higher productivity of a region leads to an increase in speciation rates as niche differentiation occurs. This prediction is reflected in choice C.

Which of the Following Is a Prediction of the High-Productivity