, ▁attempting ▁to ▁bring ▁back ▁dam aged ▁e cos ystem s ▁to ▁their ▁original ▁health y ▁state ▁and ▁making ▁them ▁sust ain able . ▁For ▁example , ▁Gr ass lands ▁National ▁park ▁brought ▁back ▁B ison ▁b ison ▁for ▁a ▁pra irie ▁rest oration . ▁The ▁b ison ▁gra zing ▁patterns ▁help ▁to ▁maintain ▁a ▁variety ▁of ▁pra irie ▁b iod iversity . ▁In ▁G w ai i ▁Ha anas ▁National ▁Park , ▁removing ▁Norway ▁r ats , ▁which ▁were ▁accident ally ▁brought ▁in ▁the ▁area , ▁is ▁conducted ▁because ▁they ▁eat ▁eggs , ▁some ▁young ▁and ▁even ▁adult s ' ▁se ab ird , ▁and ▁reducing ▁the ▁se ab ird ' s ▁population . ▁Staff s ▁monitor ▁for ▁the ▁return ▁of ▁r ats ▁by ▁tra pping ▁and ▁poison ▁ba its ▁for ▁recover ing ▁native ▁se ab ird ▁populations . ▁ ▁Co - management ▁Through ▁par ks ▁policies ▁and ▁operation ▁practices , ▁Park s ▁Canada ▁has ▁recognized ▁the ▁importance ▁of ▁working ▁together ▁with ▁ind igen ous ▁pe op les ▁and ▁other ▁communities ▁to ▁manage ▁par ks ' ▁health y ▁e cos ystem ▁within ▁and ▁around ▁National ▁Park s ." <0x09> <0x09> <0x09> <0x09> ▁ ▁In ▁ 1 9 8 4 , ▁I v v av ik ▁National ▁Park ▁was ▁established ▁as ▁a ▁result ▁of ▁an ▁Ab original ▁land ▁claim ▁agreement . ▁Now , ▁I v v av ik ▁is ▁managed ▁co - oper atively ▁by ▁Park s ▁Canada ▁and ▁the ▁In uv ial uit . ▁Their ▁mut ual ▁goals ▁are ▁to ▁protect ▁wild