There are two different species of finch that live on the same small island, species A and
species B. Both species successfully feed and reproduce on the island. Species A nests in
pine trees and eats large seeds. Species B nests in hollowed-out dead logs and eats small
insects.

Both bird species A and species B can most likely survive on the same small island because they
(1) use different resources and, therefore, they do not compete
(2) mate with each other, keeping both populations constant
(3) compete for food, but do not compete for shelter
(4) eat the same food, but feed at different times of the day

Respuesta :

1) use different resources and therefore, they do not compete.

They have different needs and the island is able to provide for their needs.
They live in different type of shelter and eat different type of food. That is why competition between these two species is non-existent, thus, ensuring their survival.

Had these two different species need the same type of food and shelter, their number will diminish over time until only the fittest organism among the species will survive.