Fiscal Year*1 Number of groups Population size*2 Source Harvest Source Survival rate*5 (excluding infant) Crude birth rate*6 Infant survival rate*7 Mature female rate*8 Birth rate*9 Growth rate*10 Sex ratio at birth Other factors Source
Total NW*3 SW*4 Total NW*3 SW*4 Exterminating  Rearing Relegating to out side of home range
1963 7 3 4 187 118 65 [37]
1967 70 [38]
1978 7 3 4 [39]
1981 9(M5, F4) [58]
1982 5 [33] 72M6, F24, J28, I1) 11(M11) [58]
1983 8(M6, F2) [58]
1984 3 [40] 16(M10, F6) 3(M2, F1)  [58]
1985 4 48 [41]
1986 4 44 [42]
1987 13 8 5 350 250 100 [43] 0.615 0.875 0.769 0.800 0.700 1.182 [60]
1988 1.615 0.143 1.000 0.429 0.333 0.333
1989 1.095 0.217 0.800 0.391 0.556 0.444
1990 5 84 [44], [45] 1.261 0.172 1.000 0.310 0.556 0.556
1991 12 300 [46] 1.103 0.125 1.000 0.281 0.444 0.444
1992 1.125 0.139 0.600 0.306 0.455 0.273
1993 1.056 0.184 0.714 0.316 0.583 0.417
1994 6 143 [47], [48], [49] 1.053 0.100 1.000 0.325 0.308 0.308
1995 6 180 [50] 1.150 0.174 0.875 0.304 0.571 0.500
1996 1.152 0.151 0.875 0.302 0.500 0.438
1997 6 187 [51] 1.245 0.091 0.667 0.227 0.400 0.267
1998 17 11 6 732 511 221 [37], [52], [53] 0.848 0.196 0.909 0.286 0.688 0.625
1999 22 16 6 759 552 207 [37], [53], [55] 0.339 0.105 1.000 0.316 0.333 0.333
2000 1.158 0.136 1.000 0.273 0.500 0.500 [60], [61]
2001 25 19 6 1050 795 255 [53] 1(M1) 0.955 0.238 0.800 0.429 0.556 0.444
2002 27 20 7 1081 775 306 [37], [53] 1.190 0.040 1.000 0.280 0.143 0.143
2003 29 21 8 1299 1002 297 [37], [54] 1.040 0.192 1.000 0.346 0.556 0.556
2004 29 21 8 1384 1016 368 [54] 13(M13) [58], [59] 1.115 0.172 0.800 0.379 0.455 0.364
2005                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            1.069 0.226 1.000 0.387 0.583 0.583
2006 1419 1015 404 [37] 1.097 0.088 1.000 0.353 0.250 0.250
2007 44 34 10 1635 1211 424 [37]
2008 47 37 10 1775 1316 459 [56]
2009 51 41 10 1874 1420 454 [57]
*1 Fiscal year ending March.
*2 The number of individuals have been counted during the year. All data were estimated values.
*3 NW: north-west part of the Shimokita population
*4 SW: south-west part of the Shimokita population
*5  Population size in the fiscal year / population size in the previous fiscal year
*6 Number of birth / population size just before birth season (i.e. population size in the previous fiscal year)
*7 The number of infant surviving over the fiscal year / the number of birth
*8 The number of mature female just before birth season (i.e. the number of mature female in the previous fiscal year) / population size just before birth season (i.e. population size in the previous fiscal year)  
*9 The number of birth / the number of mature female just before birth season (i.e. the number of mature female in the previous fiscal year)
*10 The number of infant surviving over the fiscal year / the number of mature female just before birth season (i.e. the number of mature female in the previous fiscal year)
Source: Data includes original variables in these source and calculated variables using these source.
[33] Izawa K. (1982) The Japanese monkeys in Shimokita Peninsula: Where are they going ? Monkey 26(5): 6-13 
[35] Association for the Research on Monkeys in Shimokita Peninsula (2001) The Japanese monkeys in Shimokita Peninsula: survey report 2000. 
[37] Association for the Research on Monkeys in Shimokita Peninsula (2008) The Japanese monkeys in Shimokita Peninsula: survey report 2007. 
[38] Azuma S., Ashizawa S., Mori O. & Wada H. (1978) Changes in habitat and population in the local population in south-west part of Shimokita Peninsula. In: Izawa K. & Mito Y. (ed.) The way to coexistence of people and monkeys: a research on conservation of Japanese macaques living in northern limit. Japan Monkey Centre, Aich 
[39] Ashizawa S. (1978) A comparison of Japanese macaques living in south-west part of Shimokita Peninsula to macaques living in north-west part. In: Izawa K. & Mito Y. (ed.) The way to coexistence of people and monkeys: a research on conservation of Japanese macaques living in northern limit. Japan Monkey Centre, Aich 
[40] Shimokita Wildlife Research Group (1984) Survey report of wild Japanese monkeys in Wakinosawa Village, 1984. Shimokita Wildlife Research Group, Aomori
[41] Shimokita Wildlife Research Group (1985) Survey report of wild Japanese monkeys in Wakinosawa Village, 1985. Shimokita Wildlife Research Group, Aomori
[42] Shimokita Wildlife Research Group (1987) Survey report of wild Japanese monkeys in Wakinosawa Village, 1986. 
[43] Shimokita Wildlife Research Group (1988) Survey report of wild Japanese monkeys in Wakinosawa Village, 1987. 
[44] Association for the Research on Monkeys in Shimokita Peninsula (1991) The Japanese monkeys in Shimokita Peninsula: survey report 1990. 
[47] Association for the Research on Monkeys in Shimokita Peninsula (1995) The Japanese monkeys in Shimokita Peninsula: survey report 1994. 
[50] Association for the Research on Monkeys in Shimokita Peninsula (1996) The Japanese monkeys in Shimokita Peninsula: survey report 1995. 
[51] Association for the Research on Monkeys in Shimokita Peninsula (1998)  The Japanese monkeys in Shimokita Peninsula: survey report 1997. 
[52] Association for the Research on Monkeys in Shimokita Peninsula (1999) The Japanese monkeys in Shimokita Peninsula: survey report 1998.
[53] Association for the Research on Monkeys in Shimokita Peninsula (2003) The Japanese monkeys in Shimokita Peninsula: survey report 2002.
[54] Association for the Research on Monkeys in Shimokita Peninsula (2005) The Japanese monkeys in Shimokita Peninsula: survey report 2004.
[56] Japanese Monkey Field Station (2009) The Japanese monkeys in Shimokita Peninsula: survey report 2008.
[57] Japanese Monkey Field Station (2010) The Japanese monkeys in Shimokita Peninsula: survey report 2009. 
[61] Japanese Monkey Field Station  (2007) The Japanese monkeys in Shimokita Peninsula: survey report 2006.