I think the grizzlies will take care of that on their own. Either some bears from the island will swim to the mainland, or vice versa.
Note: don't ask for a link on that. I just suspect animals prefer not to mate with their siblings.
Note: don't ask for a link on that. I just suspect animals prefer not to mate with their siblings.
They might be waiting for a long time for other bears to come
In any case, the drive to mate is pretty powerful. I would think a female in heat would swim back to the mainland if that was the only way to find a male.
'On Vancouver Island—about 10 times closer to the mainland—the genetic diversity of any future grizzly population shouldn’t be a problem. As we’ve seen, “there’ll be males coming over to mix up the genes,” McLellan says. And now, perhaps, the odd female too."'