▁to ▁initi ate ▁the ▁species ’ ▁conservation ▁at ▁the ▁Das ht - e - N az ▁and ▁K are he h ▁Wild life ▁Ref ug es . ▁Israel ▁initi ated ▁a ▁re int roduction ▁program ▁with ▁three ▁pure blo od ▁Pers ian ▁fall ow ▁de er ▁from ▁the ▁Von ▁Op el ▁Z oo ▁in ▁Germany ▁and ▁an ▁additional ▁four ▁de er ▁trans located ▁from ▁Das ht - e - N az , ▁which ▁were ▁taken ▁to ▁a ▁bre eding ▁en closure ▁in ▁the ▁Car mel ▁H ai - Bar ▁Nature ▁Reserve . ▁ ▁Re int roduction ▁ ▁Pl anning ▁for ▁the ▁Pers ian ▁fall ow ▁de er ' s ▁successful ▁re int roduction ▁has ▁proven ▁difficult ▁because ▁not ▁much ▁information ▁regarding ▁the ▁species ’ ▁behavior ▁and ▁population ▁dynamics ▁is ▁available . ▁While ▁it ▁is ▁hoped ▁that ▁as ▁much ▁as ▁possible ▁can ▁be ▁done ▁to ▁help ▁ensure ▁the ▁success ▁of ▁the ▁re int rodu ced ▁population , ▁most ▁of ▁the ▁measures ▁that ▁could ▁help ▁the ▁probability ▁of ▁success ▁are ▁cost ly . ▁ ▁Because ▁of ▁the ▁extensive ▁financial ▁invest ment ▁involved ▁in ▁a ▁fruit ful ▁re int roduction , ▁many ▁bi olog ists ▁believe ▁the ▁money ▁could ▁be ▁better ▁spent ▁towards ▁other ▁conservation ▁efforts . ▁ ▁A ▁variety ▁of ▁factors ▁contribute ▁to ▁the ▁success ▁of ▁re int rodu ctions , ▁several ▁of ▁which ▁involve ▁alle vi ating ▁the ▁concerns ▁of ▁small ▁population ▁size . ▁For ▁Pers ian ▁fall ow ▁de er , ▁some ▁additional ▁factors ▁include ▁f ec und ity ▁and ▁reprodu ction ,