September 2003, Bwindi - Women harvesting oyster mushrooms. Small enterprises have been created in communities around the Bwindi Impenetrable National Park in Uganda to generate income while conserving the park, named a UNESCO World Heritage Site in 1994. Cultivation and sale of oyster mushrooms has reduced the illegal harvest from the park. The producers make an average of US$10 in additional income a month per household from this activity. All these activities have generated employment and created additional income. Requiring less space than other agricultural activities, they also exert less impact on the land and make best use of existing local knowledge and resources.