One of the tools that range scientists use to observe and study habitats is to erect fences around small areas to exclude browsing and grazing animals, and to then observe the changes inside these exclosures compared to adjacent areas outside the exclosures. We essentially did this when we built our house 16 years ago and put up a high fence around it. Over the years I also planted a number of native trees and put cages around them as well as around a few other places where I found newly sprout ...