Fiscal
year*1 |
Number of groups |
Source |
Population*2 size |
Source |
Survival rate*3 (excluding infant) |
Source |
Crude birth rate*4 |
Source |
Infant survival rate*5 |
Source |
Mature female rate*6 |
Source |
Birth rate*7 |
Source |
Growth rate*8 |
Source |
SSR*9 |
Source |
Other factors |
Source |
Before warld war |
(4-5) |
[9] |
(200-300) |
[9] |
No data |
- |
No data |
- |
No data |
- |
No data |
- |
No data |
- |
No data |
- |
No data |
- |
|
|
1962 |
1 |
[12] |
(60-70) |
[12] |
|
|
1966 |
2 |
[13] |
(64-70) |
[13] |
|
|
1969 |
2 |
[9] |
(90-100) |
[9] |
|
|
1980 |
3 |
[14] |
(71) |
[9], [14] |
|
|
1982 |
4 |
[9] |
250 |
[9] |
0.700 |
[9] |
0.260 |
[9] |
0.460 |
[9] |
0.323
|
[9] |
|
|
1983 |
5 |
270 |
1.036 |
[9] |
0.152 |
[9] |
0.289 |
0.278 |
0.510 |
0.147
|
Shortage of food resource /
extreme weather |
[9] |
1984 |
5 |
230 |
0.844 |
0.019 |
0.400 |
0.204 |
0.110 |
0.043
|
|
|
1985 |
5 |
200 |
0.717 |
0.222 |
0.686 |
0.300 |
0.850 |
0.583
|
|
|
1986 |
5 |
211 |
1.010+ |
0.065+ |
0.692+ |
0.290+ |
0.224+ |
0.155+ |
|
|
1987 |
5 |
222 |
0.991+ |
0.081+ |
0.765+ |
0.284+ |
0.283+ |
0.217+ |
|
|
1988 |
5 |
237 |
1.005 |
0.095 |
0.667 |
0.308 |
0.290 |
0.192
|
|
|
1989 |
5 |
252 |
0.916 |
0.198 |
0.745 |
0.321 |
0.580 |
0.432
|
|
|
1990 |
5 |
263 |
1.008 |
0.040 |
0.900 |
0.304 |
0.130 |
0.113 |
|
|
1991 |
5 |
265 |
0.905 |
0.118 |
0.871 |
No data |
- |
No data |
- |
No data |
- |
|
|
1992 |
6 |
268 |
0.977 |
0.079 |
0.429 |
0.317 |
[9] |
0.250 |
[9] |
0.106 |
[9] |
|
|
1993 |
6 |
272 |
0.981 |
0.049 |
0.692 |
0.335 |
0.140 |
0.099 |
|
|
1994 |
6 |
294 |
0.842 |
0.279 |
0.855 |
0.333 |
0.780 |
0.663 |
|
|
1995 |
6 |
285 |
0.949 |
0.031 |
0.667 |
0.298 |
[18] |
0.110 |
[18] |
0.071 |
[18] |
0.79 |
[19] |
|
|
1996 |
6 |
275 |
0.860 |
0.189 |
0.556 |
0.313 |
0.630 |
0.349 |
No data |
- |
Shortage of food resource /
extreme weather |
[19] |
1997 |
6 |
248 |
0.884 |
0.022 |
0.833 |
0.302 |
0.080 |
0.067 |
|
|
1998 |
6 |
259 |
0.964 |
0.177 |
0.455 |
0.305 |
0.560 |
0.253 |
|
|
1999 |
6 |
239 |
0.903 |
0.131 |
0.147 |
0.335 |
0.430 |
0.063 |
0.94 |
[16] |
|
|
2000 |
6 |
241 |
0.975 |
0.046 |
0.727 |
0.324 |
0.140 |
0.103 |
1.06 |
|
|
2001 |
6 |
249 |
0.905 |
0.212 |
0.608 |
No data |
- |
No data |
- |
No data |
- |
1.03 |
|
|
2002 |
6 |
235 |
0.912 |
0.060 |
0.533 |
0.305 |
[9], [16] |
0.197 |
[9], [16] |
0.105 |
[9], [16] |
0.99 |
[17] |
|
|
2003 |
6 |
217 |
0.860 |
0.128 |
0.500 |
0.289 |
0.441 |
0.221 |
1.04 |
|
|
2004 |
6 |
[15] |
221 |
[15] |
0.912 |
[9], [15] |
0.171 |
[9], [15] |
0.622 |
[9], [15] |
0.300 |
0.580 |
0.359 |
1.06 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
*1 Fiscal year ending March. |
|
|
|
*2 The number of individuals have been counted just before birth
season of the year (i.e. after March) since 1982. The estimated population
size are in parentheses. |
|
|
|
*3 Population
size in the fiscal year / population size in the previous fiscal year |
|
|
|
*4 Number of birth / population size just before birth season
(i.e. population size in the previous fiscal year) |
|
|
|
*5 The number of infant surviving over the fiscal year / the
number of birth |
|
|
|
*6 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) |
|
|
|
*7 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) |
|
|
|
*8 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) |
|
|
|
*9 The number of mature male in the previous fiscal year / the
number of mature female in the previous fiscal year |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Source: Data includes original variables in these source and
calculated variables using these source. |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
[9]
Izawa K. (2009) Studies of wild Japanese macaques.
Dobutsusha, Tokyo (in Japanese) |
|
|
|
|
|
|
|
|
|
|
|
[12]
Izawa K. (1963) Japanese macaques in Kinkazan. Yaen 14:
5-11 (in Japanese) |
|
|
|
|
|
|
|
|
|
|
|
|
[13]
Azuma S., Hayashi K. & Kawai M. (1967) Mammal survey
in Kinkazan Island, Miyagi Prefecture in 1966. Ann. Rep. JIBP-CT(5): 197-203
(in Japanese) |
|
|
|
|
|
|
|
|
|
[14]
Yhoshihiro S. (1980) Japanese macaques in Kinkazan
Island. Monkey 24 (5): 14-15 (in Japanese) |
|
|
|
|
|
|
|
|
|
|
|
[15]
Izawa K. (2005a) Results of the census on Kinkazan
population of Japanese macaques in 2004. Japanese monkeys in Miyagi
Prefecture 20: 21-26 (in Japanese) |
|
|
|
|
|
|
|
|
|
[16]
Izawa K. (2004) Number of non-troop male and spatial
relation of Japanese monkeys in Kinkazan Island. Japanese monkeys in Miyagi
Prefecture 16: 35-43 (in Japanese) |
|
|
|
|
|
|
|
|
|
[17]
Izawa K. (2005b) Variation in ratio of non-troop male to
troop male with the seasons in Japanese monkeys living in Kinkazan Island.
Japanese monkeys in Miyagi Prefecture 20: 12-16 (in Japanese) |
|
|
|
|
|
|
[18]
Izawa K. (2000) The ecological study of wild Japanese
monkeys living in Kinkazan Island, Miyagi Prefecture: on the population
change 1995-2000. Bull. Miyagi Univ. Educ. 35: 329-337 (in Japanese) |
|
|
|
|
|
|
[19]
Izawa K. (1997) Population census of Japanese macaques
at Kinkazan in 1996. Japanese monkeys in Miyagi Prefecture 2: 1-12 (in
Japanese) |
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