Studbook 31.12.1982 - new population trend table No.1 Jan Births Wild-caught Death No. 31.12 1969 144 - 73/71 4/2 3/1 8/3 1970 143 - 72/71 2/9 1/1 6/7 1971 143 - 69/74 2/3 9/11 3/8 1972 157 - 77/80 3/5 1/4 5/3 1973 162 - 76/86 1/3 4/8 5/2 1974 171 - 76/95 1/3 5/5 6/7 1975 172 - 76/96 4/4 5/6 4/3 1976 184 - 81/103 2/3 2/2 3/3 1977 187 - 82/105 8/3 - 6/4 1978 188 - 84/104 5/2 - 6/7 1979 182 - 83/99 6/4 - 6/5 1980 181 - 83/98 4/1 - 7/4 1981 175 - 80/95 4/4 - 0/4 1982 179 - 84/95 2/5 - 1/ 2 The studbook of 31.12.1982 lists nos. 1-331 Alive were 183 animals in 69 collections.
Studbook 31.12.1982 - new population trend table No.1 Jan Births Wild-caught Death No. 31.12 1969 86 - 42/44 1/0 5/3 1/1 1970 93 - 47/46 1/0 23/34 0/2 1971 149 - 71/78 2/0 30/71 0/1 1972 251 - 103/148 4/1 25/35 - 1973 316 - 132/184 5/4 20/27 1/4 1974 367 - 156/211 8/6 27/34 3/2 1975 437 - 188/249 3/2 18/25 6/3 1976 476 - 203/273 10/9 9/11 3/6 1977 506 - 219/287 12/9 15/16 1/6 1978 551 - 245/306 15/8 10/7 7/5 1979 579 - 263/316 24/15 1/3 10/9 1980 603 - 278/325 9/17 1/3 13/10 1981 610 - 275/335 17/15 1/0 9/8 1982 626 - 284/342 14/6 0/1 3/7 Studbook lists nos. 1-752 At 31.12.1982 there were 637 live individuals in 207 collections. This includes 16 (7/9) northern white in 7 collections.
