Respuesta :
Answer:
Speciation
Explanation:
When the virus reduced the population of the blue-footed a new population of the same bird trapped in England can no longer interbreed. This event can be described as speciation.
Speciation is the process by which a new species with a different character from the parent trait is formed during evolution. Speciation can occur as a result of the absence of an organism from its population for a long time. This is basically how new species are produced and these organisms find it difficult to reproduce with each other after speciation.
The geographic isolation caused the speciation that the blue-footed ducks encountered