List of top Ecology and Evolution Questions on Species-Area Relationships

Observations of algal species showed that their diversity was higher in pools where there were grazing snails compared to pools without snails. Which one of the following statements best explains this result?

In an island chain, species richness (S) increases with island area (A) according to the equation, $S = 4.3A^{0.55}$. Which one of the following graphs best represents this equation?