Syncerus caffer: Population traits

at T = 38.4 °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: 2023/04/13
symbol units thinning falsethinning true thinning falsethinning true description
femalemale femalemale femalemale femalemale
f - 0.93614 0.93614 0.961813 0.961813 1 1 1 1 scaled functional response
r 1/d 0 0 0 0 0.000456538 0.000456538 9.93365e-05 9.93365e-05 spec pop growth rate
t2 d NaN NaN NaN NaN 1518.27 1518.27 6977.77 6977.77 population doubling time
a_b d 202.185 202.185 202.185 202.185 202.185 202.185 202.185 202.185 age at birth
t_x d 3003.23 1562.18 1962.39 1377.12 1518.1 1198.07 1518.1 1198.07 time since birth at weaning
t_p d 338.187 312.921 326.255 303.102 310.845 290.295 310.845 290.295 time since birth at puberty
S_b - 1 1 1 1 1 1 1 1 survival probability at birth
S_x - 1 1 0.534048 0.515801 1 1 0.522153 0.504695 survival probability at weaning
S_p - 0.999662 0.999967 0.18398 0.182595 0.999968 0.999986 0.183076 0.181758 survival probability at puberty
theta_0b - 0.0140502 0.013443 0.0717285 0.0762809 0.0886111 0.0885346 0.127135 0.136099 frac of ind that is embryo
theta_bx - 0.0140483 0.0134413 0.0515894 0.0539111 0.0807873 0.0807185 0.088705 0.0933562 fraction of individuals that is baby
theta_xp - 0.194607 0.0904121 0.159299 0.118636 0.377291 0.304957 0.201474 0.168961 fraction of individuals that is juvenile
theta_pi - 0.777294 0.882704 0.717384 0.751172 0.45331 0.52579 0.582686 0.601583 frac of ind that is adult
L_bi cm 46.4931 49.3329 46.0316 48.5922 43.6848 45.8303 45.2708 47.4442 mean structural length of post-natals
L2_bi cm^2 2177.21 2452.9 2165.49 2421.63 1981.93 2191.56 2132.53 2358.13 mean squared structural length of post-natals
L3_bi cm^3 102423 122556 103206 122459 92298.6 107858 102955 120530 mean cubed structural length of post-natals
Ww_bi g 449951 564311 462995 575970 426837 523157 476117 584620 mean wet weight of post-natals
L_pi cm 47.7333 50.5678 48.9709 51.8607 50.2066 52.6143 50.6708 53.5147 mean structural length of adults
L2_pi cm^2 2278.47 2557.32 2398.21 2690.04 2521.57 2771.47 2568 2865.66 mean squared structural length of adults
L3_pi cm^3 108759 129340 117448 139559 126686 146150 130170 153545 mean cubed structural length of adults
Ww_pi g 477784 595547 526886 656397 585861 708887 601975 744754 mean wet weight of adults
R 1/d 8.93259e-05 0.00102839 0.000494083 0.00147273 0.000922714 0.00176327 0.00106778 0.00206198 mean reproduction rate of adults
J_X g/d 2928.46 3504.9 2992.58 3555.11 2847.65 3345.08 3064.04 3599.33 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 0.0147974 0.0147205 0.00333781 0.00332647 yield of living structure on food
Y_VX_d mol/mol 0.00261976 0.00250923 0.00565339 0.0055244 0.000112804 9.46994e-05 0.00696614 0.00693275 yield of dead structure on food
Y_EX mol/mol 0 0 0 0 0.0536335 0.05668 0.012098 0.0128082 yield of living reserve on food
Y_EX_d mol/mol 0.008889 0.00904457 0.0197084 0.0204589 0.00040886 0.000364631 0.0252489 0.0266939 yield of dead reserve on food
Y_CX mol/mol 0.813183 0.813141 0.800368 0.799794 0.760047 0.757358 0.779751 0.777799 yield of CO2 on food
Y_HX mol/mol 0.693525 0.69349 0.682597 0.682106 0.648208 0.645915 0.665013 0.663348 yield of H2O on food
Y_OX mol/mol -0.956039 -0.95599 -0.940974 -0.940298 -0.893569 -0.890407 -0.916734 -0.914439 yield of O2 on food
Y_NX mol/mol 0.0659337 0.0659303 0.0648947 0.0648481 0.0616254 0.0614074 0.0632231 0.0630648 yield of N-waste on food
mu_TX J/mol 458257 458227 450917 450574 427803 426226 439094 437950 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