Population Size Variation of Black Bear (Ursus thibetanus) and Brown Bear (U.arctos) between 1986 to 2010 in the Changbai Mountain Nature Reserve,China
Population Size Variation of Black Bear (Ursus thibetanus) and Brown Bear (U.arctos) between 1986 to 2010 in the Changbai Mountain Nature Reserve,China
长白山自然保护区黑熊和棕熊种群数量动态分析