Indigenous owners. 80% of the world's biologically rich areas are the territories of tribal communities who, for millennia, have found ingenious ways of catering for their needs and maintaining the ecological balance of their surroundings. Such sustainable principles are evident in the health of the Amazon: much of the rainforest that lies outside tribal reserves has been denuded, whereas within indigenous areas it largely remains intact. Similarly, the only remaining rainforest on the Andaman Islands is found within the Jarawa peoples' reserve. It is often precisely because 'wild' places have been looked after by their indigenous guardians that they have been chosen by conservationists as reserves.
http://www.huffingtonpost.com/joanna-eede/wilderness-preservation_b_942220.html
That is where the weed treasure groove is. The amount of plants these communities have acclimated around them can amount to 300 and more species of plants and animals all living in a semi-wild state. These peoples view Nature not as Wild, but as Tamed. They learned to cultivate it over millenniums with lots of knowledge and simple tools.