Population status and dynamic trends of Amur tiger‘s prey in Eastern Wandashan Mountain, Heilongjiang Province Characteristics of wild boar (Sus scrofa) mud bath sites on the northern slope of Funiu Mountain Factors influencing of residents’ tolerance towards wild boar in and near nature reserve:Taking the Heilongjiang Fenghuangshan Nature Reserve as the example Prey biomass of the Amur tiger (Panthera tigris altaica) in the eastern Wanda Mountains of Heilongjiang Province, China Winter carrying capacity and the optimum population density of wild boar in fenghuang Mountains National Nature Reserve of Heilongjiang Province