▁of ▁them ▁found ▁in ▁Z ov ▁Tig ra . ▁ ▁In ▁the ▁Red ▁Book ▁of ▁rare ▁and ▁vulner able ▁species ▁of ▁the ▁Prim or sky ▁region , ▁there ▁are ▁ 3 4 3 ▁species ▁of ▁vulner able ▁plants ▁and ▁ 5 5 ▁species ▁of ▁fung i . ▁ ▁Anim als ▁Z ov ▁t ig ra ▁was ▁established ▁in ▁part ▁to ▁act ▁as ▁a ▁" source ▁habitat " ▁for ▁the ▁recovery ▁of ▁the ▁Am ur ▁T iger ▁and ▁its ▁pre y ▁base . ▁ ▁A ▁survey ▁in ▁ 2 0 1 2 ▁identified ▁four ▁Am ur ▁t ig ers ▁resident ▁in ▁the ▁park , ▁and ▁four ▁more ▁visit ing ▁the ▁protected ▁areas ▁frequently . ▁ ▁The ▁base ▁of ▁pre y ▁( most ly ▁ung ul ates ) ▁was ▁steady , ▁with ▁a ▁census ▁of ▁over ▁ 1 , 2 0 0 ▁Man ch ur ian ▁de er , ▁ 8 0 0 ▁Ro e ▁de er , ▁and ▁ 9 9 ▁S ika ▁de er ▁and ▁ 1 8 9 ▁wild ▁bo ars . ▁ ▁These ▁species ▁make ▁up ▁some ▁ 8 5 % ▁of ▁the ▁Am ur ▁t iger ' s ▁di et . ▁ ▁Tig ers ▁are ▁known ▁as ▁an ▁" um bre lla ▁species " ▁for ▁conservation : ▁their ▁success ▁in ▁a ▁region ▁indicates ▁that ▁the ▁species ▁below ▁them ▁are ▁in ▁a ▁health y ▁balance . ▁ ▁Brown ▁be ars ▁are ▁common ▁in ▁area ; ▁with ▁a ▁density ▁estimated ▁by ▁the ▁park ▁administration ▁as ▁ 0 . 4 - 0 .