Species richness increases

Question

Quizplus · Accepted Answer

The trend of species richness increasing as we travel southward from the North Pole towards the equator is commonly referred to as the latitudinal gradient of species richness. This is due to a combination of factors including greater productivity, more stable climate, and longer time for evolutionary diversification in tropical regions.

Answer: C
 Islands that are farther from the mainland tend to have higher species richness due to the fact that colonization and extinction rates are affected by the distance from the mainland. This is due to factors such as dispersal ability of the organisms and the size and isolation of the island.

Therefore, the correct answers are B and C.

Species Richness Increases