I find this topic very interesting. Basically, it is focusing on eating invasive species in your area. This is a natural evolution of the locavore movement.
I know most areas in the US have asian carp, feral hogs, invasive insects, and lots of invasive plants that are edible.
Here is a searchable DB for invasive species:
http://www.issg.org/database/welcome/ A blog about cooking invasives:
http://invasivore.org This guy does a lot of invasives hunting and eating:
http://rule-303.blogspot.com/ Where does this fit into permaculture and/or society as a whole? I see harvesting towards depletion as a possible tool to deal with problem species.