Methods:Calculating the infestation ratio and ectoparasite (such as fleas,ticks,gamasid and chigger mites) indices on each rodent species in three different ecological habitats in the region.

• 方法:计算该地区3类生境中不同鼠种不同蚤类、蜱类和螨类的染虫率及其染虫指数。