Addax nasomaculatus: Population traits

at T = 38 °C with background hazards for embryo, baby, juv, adult: 0, 0, 0, 0 1/d

Ln survival probability as function of age, with (dashed) and without (solid) thinning at max (red) and min (blue) scaled functional response for females.
Ln survivor function of the stable age distribution as function of age, with (dashed) and without (solid) thinning at max (red) and min (blue) scaled functional response for females.
model stx f_min f_max date: 2022/12/20
symbol units thinning falsethinning true thinning falsethinning true description
femalemale femalemale femalemale femalemale
f - 0.978594 0.978594 0.982448 0.982448 1 1 1 1 scaled functional response
r 1/d 0 0 0 0 0.0010752 0.0010752 0.00033743 0.00033743 spec pop growth rate
t2 d NaN NaN NaN NaN 644.671 644.671 2054.19 2054.19 population doubling time
a_b d 45.6233 45.6233 45.6233 45.6233 45.6233 45.6233 45.6233 45.6233 age at birth
t_x d 1561.27 538.409 1176.16 529.895 835.644 495.894 835.644 495.894 time since birth at weaning
t_p d 203.314 182.21 202.008 181.188 196.351 176.738 196.351 176.738 time since birth at puberty
S_b - 1 1 1 1 1 1 1 1 survival probability at birth
S_x - 1 1 0.627284 0.604474 1 1 0.621519 0.598986 survival probability at weaning
S_p - 1 1 0.170667 0.16758 1 1 0.168685 0.166043 survival probability at puberty
theta_0b - 0.00415751 0.00389218 0.0230968 0.0247305 0.0478716 0.0478712 0.07662 0.085176 frac of ind that is embryo
theta_bx - 0.00415745 0.00389213 0.0181493 0.0190703 0.0455794 0.045579 0.0590456 0.0644213 fraction of individuals that is baby
theta_xp - 0.138114 0.0420397 0.127354 0.0683072 0.518864 0.347906 0.277938 0.202336 fraction of individuals that is juvenile
theta_pi - 0.853571 0.950176 0.8314 0.887892 0.387685 0.558644 0.586396 0.648067 frac of ind that is adult
L_bi cm 32.0248 34.3861 31.6251 33.8803 29.2611 31.1035 30.0062 31.7758 mean structural length of post-natals
L2_bi cm^2 1029.14 1186.78 1010.61 1161.82 883.514 1002.55 931.258 1051.81 mean squared structural length of post-natals
L3_bi cm^3 33142.8 41050.5 32487.7 40104 27248.5 33082.3 29501.4 35661.8 mean cubed structural length of post-natals
Ww_bi g 83488.8 108021 82032.8 105788 69546 88233.5 75296.1 95113.3 mean wet weight of post-natals
L_pi cm 32.4142 34.768 32.54 34.8998 33.0271 35.0323 33.0867 35.356 mean structural length of adults
L2_pi cm^2 1050.68 1208.86 1058.85 1218.05 1090.81 1227.78 1094.74 1250.31 mean squared structural length of adults
L3_pi cm^3 34057 42032.8 34454.9 42513.4 36027.5 43047.6 36221.9 44224.3 mean cubed structural length of adults
Ww_pi g 85791.7 110605 87000.1 112143 91952.4 114812 92448.7 117950 mean wet weight of adults
R 1/d 0.000108256 0.0120394 0.000611539 0.01261 0.00264042 0.0134949 0.00284352 0.0147025 mean reproduction rate of adults
J_X g/d 1804.11 2234.33 1778.61 2195.95 1582.7 1928.77 1668.23 2023.54 mean ingestion rate of wet food by post-natals
Y_PX mol/mol 0.109375 0.109375 0.109375 0.109375 0.109375 0.109375 0.109375 0.109375 yield of faeces on food
Y_VX mol/mol 0 0 0 0 0.018511 0.0184417 0.00596721 0.00594668 yield of living structure on food
Y_VX_d mol/mol 0.00172747 0.00161709 0.00370624 0.00354782 4.36438e-07 2.13726e-07 0.00731711 0.00754012 yield of dead structure on food
Y_EX mol/mol 0 0 0 0 0.0287344 0.0307441 0.00926282 0.00991367 yield of living reserve on food
Y_EX_d mol/mol 0.00262413 0.00263813 0.00565217 0.00581073 6.77477e-07 3.56302e-07 0.0113583 0.0125701 yield of dead reserve on food
Y_CX mol/mol 0.819803 0.819892 0.815172 0.815171 0.780125 0.778331 0.792466 0.790555 yield of CO2 on food
Y_HX mol/mol 0.699171 0.699247 0.695221 0.695221 0.665332 0.663802 0.675857 0.674227 yield of H2O on food
Y_OX mol/mol -0.963822 -0.963927 -0.958377 -0.958377 -0.917174 -0.915064 -0.931683 -0.929437 yield of O2 on food
Y_NX mol/mol 0.0664705 0.0664777 0.066095 0.066095 0.0632534 0.0631079 0.064254 0.0640991 yield of N-waste on food
mu_TX J/mol 462084 462130 459475 459467 439723 438670 446677 445570 yield of heat on food

Remarks

  • Reprod-code O applies. Sex ratio is assumed to be 1:1. Parameters of male and female differ.
  • Buffer handling rule: release each egg as soon as reproduction buffer allows
  • Weights of adults do not include reproduction buffer