The chapter's Feature Investigation describes research that tested predictions of the equilibrium model of island biogeography. The researchers first surveyed islands for their diversity of arthropods and then killed all of the arthropods on the islands by temporarily enclosing the islands in plastic and fumigating them with low-level insecticides. Finally, they looked at the recolonization rate of arthropods on the different islands. Select the statements that are consistent with their findings and conclusions:

a. Recolonization rates were higher on islands closest to the mainland.
b. There was very little turnover of species after the initial phase of recolonization.
c. Their results support the species-distance relationships predicted by the model.
d. Their results support the species turnover rates predicted by the model.
e. Size of the island was the main factor determining the rate of recolonization.
f. The mainland acts as a source pool for immigrants, which recolonize the islands.