Population parameters | Rama | Shubhra | Amrit | F2,6 | Sig |
---|---|---|---|---|---|
Potential fecundity (Pf) | 320.667 ± 9.528 | 252.625 ± 8.521 | 168.542 ± 9.436 | 63.863 |  < 0.001 |
Total fertility rate (Fx) | 17,089.333 ± 1726.172 | 6608.267 ± 1208.027 | 1601.867 ± 728.188 | 37.710 |  < 0.001 |
Gross reproductive rate (GRR) mx | 96.237 ± 4.594 | 59.775 ± 5.917 | 59.394 ± 7.292 | 12.293 | 0.008 |
Net reproductive rate (NRR) R0 | 53.067 ± 3.811 | 25.867 ± 3.811 | 9.067 ± 3.811 | 33.944 |  < 0.001 |
Generation time (Tc) | 44.862 ± 0.071a | 44.047 ± 0.480a | 44.638 ± 0.147a | 2.069 | 0.207 |
Doubling time (DT) | 7.845 ± 0.135 | 9.501 ± 0.540 | 20.161 ± 0.587 | 12.316 | 0.007 |
Intrinsic rate of increase (rm) | 0.088 ± 0.002 | 0.073 ± 0.004 | 0.044 ± 0.012 | 9.084 | 0.015 |
Euler's corrected r (rc) | 0.030 ± 0.002 | 0.051 ± 0.005 | 0.104 ± 0.022 | 8.316 | 0.019 |
Finite rate of increase (λ) | 1.092 ± 0.002 | 1.076 ± 0.004 | 1.045 ± 0.013 | 9.424 | 0.014 |
Weelkly multiplication rate (λ7) | 1.857 ± 0.020 | 1.673 ± 0.047 | 1.367 ± 0.115 | 11.727 | 0.008 |
Annual rate of increase (ARI) (λ365) | 1.38E + 14 | 1.53E + 12 | 1.67E + 09 | 3.936 | 0.081 |
Increase rate per generation (λTc) | 53.067 ± 3.811 | 25.867 ± 3.811 | 9.067 ± 3.811 | 33.944 |  < 0.001 |
Generation mortality (GM) | 0.385 ± 0.019 | 0.601 ± 0.049 | 0.982 ± 0.218 | 5.451 | 0.045 |
Mortality coefficient (MC) | 0.165 ± 0.007 | 0.102 ± 0.011 | 0.052 ± 0.020 | 17.039 | 0.003 |
Generation survival (GS) | 0.620 ± 0.013 | 0.500 ± 0.022 | 0.177 ± 0.060 | 37.168 |  < 0.001 |
Population growth rate (PGR) (rmN) | 11.758 ± 1.043 | 4.822 ± 0.944 | 1.217 ± 0.655 | 35.739 |  < 0.001 |
Population momentum factor of increase (PMF) | 16.434 ± 0.524 | 11.918 ± 0.845 | 22.920 ± 1.692 | 23.834 |  < 0.001 |
Population size in 2nd generation (PMFxN) | 2190.233 ± 225.815 | 786.759 ± 167.077 | 488.376 ± 186.376 | 21.801 | 0.002 |
Hypothetical F2 females (HNf2) | 2845.120 ± 403.983 | 698.133 ± 196.934 | 111.253 ± 69.868 | 30.039 |  < 0.001 |
Realised F2 females (RNf2) | 876.093 ± 90.326 | 314.704 ± 66.831 | 195.350 ± 74.550 | 21.801 | 0.002 |
General fertility rate (GFR) | 6.080 ± 1.260 | 10.108 ± 1.167 | 31.187 ± 1.183 | 12.072 | 0.009 |
Crude birth rate (CBR) | 1.374 ± 0.015 | 1.529 ± 0.031 | 2.096 ± 0.131 | 23.559 |  < 0.001 |
Reproductive value (RV) | 192.473 ± 9.188 | 119.550 ± 11.834 | 118.788 ± 14.584 | 12.293 | 0.008 |
Vital Index (VI) | 0.413 ± 0.018 | 0.254 ± 0.028 | 0.129 ± 0.050 | 17.039 | 0.003 |
Trend index (TI) | 67.300 ± 4.333 | 35.087 ± 4.751 | 14.341 ± 5.758 | 28.674 |  < 0.001 |