ノウサギ・キツネの生息密度と変動 : 北海道石狩南部から留萌地域における
Population density and its fluctuation in hares(Lepus timidus) and red foxes(Vulpes vulpes)in the mountainous area of eastern Hokkaido, Japan

Yoshiharu SHIBATA, Chikio HAYASHI, Sukesaburo HIGUCHI, Masaaki KADOSAKI
1991 Journal of the Japanese Wildlife Research Society  
doi:10.18987/jjwrs.18.0_17 fatcat:wzbs6lnnw5hatlhpsno7pav6qi