A working landscape, the way we think of it, is typically southern Canada, where it's more populated and more developed, with more roads, more fragmentation of habitat, and more development. Why it's important is that there are many species, particularly species at risk, in many of those areas, land is more expensive to deal with, and solutions have to be more flexible because there are more people.
Every person has a different socio-economic situation, with different land, perhaps, and different conditions of that land, so it's far more difficult to come up with conservation solutions in those areas. It requires far more creativity.