Zhang Jiangmei sits with Ma Chenyue and Cao Dafan in Daotangqing village in Jinghong, Yunnan province. CHEN LIANG/CHINA DAILY Before conservationists from the International Fund for Animal Welfare China, the Xishuangbanna National Nature Reserve and the Rainforest Foundation of Xishuangbanna launched their cooperative community project in Daotangqing, in June 2020, Zhang Jiangmei rarely wore the traditional dress of her Yi …