Question

1. Two previously isolated populations of birds come back into contact with one-another. If hybrid offspring have the same fitness as their parents across both parental habitats, what would we expect to happen to these two lineages?

A. Similarities in resource use will drive sympatric speciation in the overlapping range.

B. We will see fusion, with hybridization merging the lineages.

C. We will see reinforcement, and selection for mechanisms that maintain independent lineages.

D. We will see the establishment of a hybrid zone between the two parental ranges.

Answer 1