Most biologists," (says , 1981) "seem to have heard of the boundary layer, but they have a fuzzy notion that it is a discrete region, rather than the… - Bill Mollison

Brambles, in particular, protect and nourish young fruit trees, and on farms bramble clumps (blackberry or one of its related cultivars) can be used to exclude deer and cattle from newly set trees. As the trees (apple, quince, plum, citrus, fig) age, and the brambles are shaded out, hoofed animals come to eat fallen fruit, and the mature trees (7 plus years old) are sufficiently hardy to withstand browsing. Our forest ancestors may well have followed some such sequences for orchard evolution, assisted by indigenous birds and mammals.

What is proposed herein is that we have no right, nor any ethical justification, for clearing land or using wilderness while we tread over lawns, create erosion, and use land inefficiently. Our responsibility is to put our house in order. Should we do so, there will never be any need to destroy wilderness.

In the fall, acorns, filberts, and hickory nuts are gathered by wildlife as winter stores. Field and pack rats bring in smaller seed such as wild rice from the marshes. If storages are provided, these foragers will fill hollow pipes or logs, or smaller pipes, old vehicle engine manifolds, and nest boxes or wall cavities. Seed so collected is sound, clean, and neatly stored. Providing some 15% is left, and given over to winter food for these workers, 85% can be collected for human use. A few people regularly collect their hickory nuts or wild rice in this way, by providing dens for squirrels or pack rats. It is a question of cooperation and provision for others, instead of attempting to kill off the experts and do the job yourself.