Camelus dromedarius: Population traits

at T = 37.5 °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: 2025/05/23
symbol units thinning falsethinning true thinning falsethinning true description
femalemale femalemale femalemale femalemale
f - 0.944506 0.944506 0.95627 0.95627 1 1 1 1 scaled functional response
r 1/d 0 0 0 0 0.000692383 0.000692383 0.00022547 0.00022547 spec pop growth rate
t2 d NaN NaN NaN NaN 1001.1 1001.1 3074.23 3074.23 population doubling time
a_b d 140.506 140.506 140.506 140.506 140.506 140.506 140.506 140.506 age at birth
t_x d 2178.12 1788.06 1569.52 1449.33 1059.14 1026.92 1059.14 1026.92 time since birth at weaning
t_p d 563.124 555.078 545.981 538.575 494.115 488.439 494.115 488.439 time since birth at puberty
S_b - 1 1 1 1 1 1 1 1 survival probability at birth
S_x - 1 1 0.565896 0.563906 1 1 0.55058 0.54869 survival probability at weaning
S_p - 1 1 0.219563 0.219128 1 1 0.216282 0.215887 survival probability at puberty
theta_0b - 0.0108428 0.010785 0.0471809 0.0474047 0.0927474 0.0927456 0.129165 0.130092 frac of ind that is embryo
theta_bx - 0.0108421 0.0107843 0.0349368 0.0350397 0.0841445 0.084143 0.091523 0.0920196 fraction of individuals that is baby
theta_xp - 0.157232 0.126456 0.135545 0.126234 0.38758 0.377737 0.219331 0.214374 fraction of individuals that is juvenile
theta_pi - 0.821084 0.851975 0.782338 0.791321 0.435529 0.445374 0.55998 0.563514 frac of ind that is adult
L_bi cm 42.8508 43.0921 42.5189 42.7476 40.1992 40.3821 41.3183 41.4992 mean structural length of post-natals
L2_bi cm^2 1844.39 1865.29 1829.43 1849.49 1667.27 1683.15 1764.99 1781.5 mean squared structural length of post-natals
L3_bi cm^3 79619.2 80979.8 79299.1 80620.6 70717.9 71762.4 77063.5 78195.4 mean cubed structural length of post-natals
Ww_bi g 358048 365780 360063 367689 332549 338974 362389 369361 mean wet weight of post-natals
L_pi cm 43.6019 43.8428 44.1275 44.3711 45.6439 45.8534 45.9334 46.1718 mean structural length of adults
L2_pi cm^2 1901.13 1922.19 1947.24 1968.81 2083.76 2103.01 2110.11 2132.11 mean squared structural length of adults
L3_pi cm^3 82893 84274.5 85927.5 87359.2 95146.8 96473.9 96945.2 98468.8 mean cubed structural length of adults
Ww_pi g 372770 380662 390159 398422 447425 455700 455882 465123 mean wet weight of adults
R 1/d 9.47256e-05 0.000248138 0.000430458 0.00058722 0.00144163 0.00158243 0.00161831 0.0017779 mean reproduction rate of adults
J_X g/d 3682.27 3745.22 3697.9 3759.73 3524.23 3578.06 3730.79 3787.14 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 0.0138935 0.0138866 0.00465734 0.00465542 yield of living structure on food
Y_VX_d mol/mol 0.00175673 0.00174742 0.00363987 0.00362747 9.416e-06 9.04938e-06 0.00588029 0.00589079 yield of dead structure on food
Y_EX mol/mol 0 0 0 0 0.0514402 0.0517075 0.0172437 0.0173347 yield of living reserve on food
Y_EX_d mol/mol 0.00614328 0.00614555 0.0128872 0.0129165 3.48625e-05 3.36959e-05 0.0217716 0.0219347 yield of dead reserve on food
Y_CX mol/mol 0.816521 0.816527 0.808541 0.808525 0.763353 0.763114 0.777992 0.777749 yield of CO2 on food
Y_HX mol/mol 0.696372 0.696377 0.689566 0.689553 0.651028 0.650824 0.663512 0.663305 yield of H2O on food
Y_OX mol/mol -0.959963 -0.959971 -0.950581 -0.950563 -0.897456 -0.897175 -0.914666 -0.91438 yield of O2 on food
Y_NX mol/mol 0.0662044 0.0662049 0.0655573 0.0655561 0.0618935 0.0618741 0.0630804 0.0630607 yield of N-waste on food
mu_TX J/mol 460166 460169 455594 455584 429686 429546 438077 437935 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