That's a very good question.
My colleague, Jeannette Whitton, listed the major reasons for placing species at risk currently. She didn't mention climate change because, so far, it has not been. Our climate is changing so rapidly and scientists have been able to track the movement rates of species to match the warming climate. For many species it is not fast enough. As we see the increase in temperature over the next century—the estimates range, but let's say 2 degrees to 4 degrees—the species will not be able to track that and we will get increasing extinctions due to climate change itself.
For that reason, I very briefly mentioned that I think it is important that we not only look at habitat that is important for where species are today, but also habitat that links those species to potential future habitats. For this reason, places like the Okanagan and the Garry oak ecosystem are critically important, as they serve as corridors as species move further north. In a number of species, scientists have demonstrated that ranges are shifting north, so looking at preserving habitat to enable that migration is important.