An island had two small populations of lizard species: the spiny lizard occupied the trees and the horned lizard occupied the ground as shown below. A hurricane caused a tidal surge, killing all of the horned lizards.

Immediately after the hurricane, individual spiny lizards could be found moving between the trees and the ground. Ten years later, a small number of horned lizards naturally repopulated the island, and it took three additional years for their population size to stabilize. During these three years, as the horned lizard population increased on the ground, the spiny lizard population decreased on the ground. Neither lizard species preys upon the other lizard species.

Lizard habitat
Spiny lizards | trees | trees and ground | trees
Horned lizards | ground | none | ground
10 years 3 years
Hurricane eliminates Horned lizards
horned lizards repopulate island

Based on this information and your knowledge about biology, select true or false for each of the following statements.

1) For several years before the hurricane, allele frequencies likely remained the same in the spiny lizard population.
2) During the ten years when individual spiny lizards could be found moving between the trees and the ground, the spiny lizards likely diverged into two different species.
3) Horned lizards likely outcompete spiny lizards on the ground.
4) Before the hurricane, the spiny lizard was capable of surviving and reproducing on the ground in the absence of the horned lizard.