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Table 2 Changes in PrR and demographic values through time

From: Asian elephants exhibit post-reproductive lifespans

Cut-off year N PrR Age B Age M e B e M Maximum lifespan Oldest birth
1960 998 0.359 11 22 5 3 28 22
1961 1076 0.394 11 22 5 4 29 22
1962 1170 0.326 11 24 6 3 30 24
1963 1253 0.302 12 25 7 3 31 25
1964 1318 0.309 13 26 7 2 32 26
1965 1396 0.219 13 28 8 2 33 28
1966 1468 0.248 13 28 9 2 34 28
1967 1535 0.209 13 29 9 2 35 29
1968 1609 0.173 14 31 9 2 36 31
1969 1696 0.223 14 31 9 2 37 31
1970 1763 0.219 14 32 9 2 38 32
1971 1807 0.200 14 33 10 2 39 33
1972 1859 0.174 15 35 9 2 40 35
1973 1932 0.207 15 35 10 2 41 35
1974 1986 0.080 15 40 10 3 42 42
1975 2051 0.109 15 40 11 4 43 42
1976 2106 0.130 15 40 11 3 44 42
1977 2159 0.153 15 40 12 2 45 42
1978 2205 0.164 15 39 12 3 46 42
1979 2251 0.165 15 40 12 3 47 42
1980 2292 0.157 15 41 13 3 48 42
1981 2337 0.112 16 44 13 2 49 44
1982 2415 0.164 16 43 13 3 50 44
1983 2459 0.189 16 43 13 2 51 44
1984 2528 0.036 17 50 13 2 52 52
1985 2580 0.043 17 50 13 3 53 52
1986 2639 0.049 17 50 14 3 54 52
1987 2697 0.073 17 50 15 2 55 52
1988 2727 0.099 17 50 15 2 56 52
1989 2793 0.113 17 50 16 2 57 52
1990 2851 0.080 17 50 16 2 58 52
1991 2900 0.048 17 54 16 2 59 54
1992 2940 0.064 17 54 17 2 60 54
1993 2982 0.048 17 55 17 2 60 55
1994 3012 0.056 17 54 18 2 60 55
1995 3042 0.013 17 58 18 1 60 58
1996 3066 0.014 17 58 19 2 60 58
1997 3097 0.017 17 58 20 2 60 58
1998 3118 0.054 17 55 20 3 61 58
1999 3148 0.080 17 54 20 3 62 58
2000 3190 0.100 17 54 21 3 63 58
2001 3230 0.113 17 54 21 3 64 58
2002 3262 0.101 17 56 21 3 65 58
2003 3287 0.134 17 55 21 3 66 58
2004 3315 0.155 17 54 22 4 67 58
2005 3352 0.147 17 54 22 4 68 58
2006 3379 0.171 17 53 22 5 69 58
2007 3408 0.181 17 53 22 5 70 59
2008 3446 0.171 17 54 23 5 71 59
2009 3502 0.168 17 54 23 5 72 59
2010 3536 0.163 17 54 23 5 73 59
2011 3582 0.142 17 56 24 5 74 64
2012 3623 0.149 17 56 24 5 74 64
2013 3661 0.152 17 56 25 5 75 64
2014 3715 0.158 17 56 25 5 76 64
2015 3769 0.163 17 55 26 6 76 64
2016 3793 0.163 17 55 26 6 76 64
2017 3799 0.161 17 55 26 6 76 64
2018 3802 0.162 17 55 26 6 76 64
  1. Ages B and M are the ages at 5 and 95% population fecundity, respectively, whilst eB and eM are the expected female lifespan at ages B and M (rounded to the nearest whole number)