My own farm is in a managed landscape right outside Riding Mountain National Park, and of course, that's a living laboratory comparing a completely unmanaged area, the national park, with a pastoral landscape outside the park. My own personal observations, from having lived there for some 30 years, are that the biodiversity in the numbers of species and productivity of the land is actually higher outside the park than inside the park.
What in active management inside national parks can we do to improve biodiversity conservation? In many of our parks there's fire suppression, no agriculture, no forestry, and a tendency towards senescent, old-growth forests.