How is hawaii an example of propagate pressure and genetic isolation?

Genetic isolation is a technical way of saying that breeding amongst species is limited by something...for example, isolated by being on an island. This is fauna's case in Hawaii.





Deer on the west coast and deer on the east coast are genetically isolated FROM ONE ANOTHER to some degree also. ...to some degree. Because of the distance they are not likely to breed, but it is plausible... There are degrees of genetic isolation.





Let's continue with the deer example. Whitetail deer in the southeast could eventually breed with a deer species in the northwest given enough time. But, they are separated by a great distance. So are they genetically isolated FROM ONE ANOTHER? I would say they are because the distance is so great as to not allow it under almost all circumstances...though it could happen.





A deer species on Hawaii on the other hand could not ever feasibly breed with another species that didn't live on the island with it. They are 'cut off' genetically. This is the purest example of 'genetic isolation'.





How is hawaii an example of propagate pressure and genetic isolation?
I don't know about the first one, but Hawaii is seperated from the rest of the world so its species genes are different from growth and developement. I think so at least.