Kammala jumla mai zuwa: A cikin shekaru masu zuwa, cavers sun fadada gefen kogon kuma sun gano sabbin rassa, wanda ya haifar da jimlar fadada zuwa. A cikin 1973, an sanya wasu gilashin gilashi a cikin takamaiman wurare a cikin kogon, don tabbatar da ƙarfin sararin samaniya. A slabs tsayayya wa
Girgizar kasa ta 1976 Friuli, tana nuna yankin Karst an kauce masa girgizar ƙasa. Daga baya, masana ilimin ƙasa da masana ilimin halittu sun sami karatu da bincike kan yanayin yanayin kogon da nau'ikan dabbobi da ke rayuwa a cikin ramin.