Eidolon helvum: Population traits

at T = 34.5 °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_minf f_max date: 2022/12/20
symbol units thin falsethin truethin falsethin truethin falsethin truedescription
f - 0.91214 0.916964 0.958482 0.958482 1 1 scaled functional response
r 1/d 0 0 0.00104297 0.000444979 0.00167285 0.000731091 spec pop growth rate
t2 d NaN NaN 664.591 1557.71 414.351 948.1 population doubling time
a_b d 31.376 31.376 31.376 31.376 31.376 31.376 age at birth
t_x d 894.899 744.279 457.672 457.672 368.367 368.367 time since birth at weaning
t_p d 77.6036 77.0247 72.4894 72.4894 68.6261 68.6261 time since birth at puberty
S_b - 1 1 1 1 1 1 survival probability at birth
S_x - 1 0.76819 1 0.750496 1 0.733919 survival probability at weaning
S_p - 1 0.356435 1 0.335295 1 0.31897 survival probability at puberty
theta_0b - 0.00287917 0.00689589 0.0321968 0.0391545 0.0511341 0.064157 frac of ind that is embryo
theta_bx - 0.00287915 0.00601313 0.03116 0.0332782 0.0485191 0.0534372 fraction of individuals that is baby
theta_xp - 0.0792392 0.0646285 0.33621 0.201514 0.387978 0.24951 fraction of individuals that is juvenile
theta_pi - 0.915002 0.922462 0.600434 0.726054 0.512368 0.632895 frac of ind that is adult
L_bi cm 5.01362 5.0289 5.01018 5.07529 5.05048 5.14004 mean structural length of post-natals
L2_bi cm^2 25.1609 25.332 25.3661 26.0124 25.938 26.8684 mean squared structural length of post-natals
L3_bi cm^3 126.362 127.757 129.449 134.271 134.934 142.182 mean cubed structural length of post-natals
Ww_bi g 230.931 234.04 242.017 251.032 257.353 271.178 mean wet weight of post-natals
L_pi cm 5.03854 5.06512 5.2845 5.28978 5.49025 5.50692 mean structural length of adults
L2_pi cm^2 25.3869 25.6555 27.9263 27.982 30.145 30.3275 mean squared structural length of adults
L3_pi cm^3 127.913 129.948 147.58 148.02 165.527 167.025 mean cubed structural length of adults
Ww_pi g 233.766 238.055 275.914 276.737 315.703 318.56 mean wet weight of adults
R 1/d 0.000101102 0.000265773 0.001681 0.00170917 0.00309941 0.00319447 mean reproduction rate of adults
J_X g/d 7.87131 7.96674 8.33866 8.55112 8.89599 9.21509 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 yield of faeces on food
Y_VX mol/mol 0 0 0.0161911 0.00698716 0.0253737 0.0112802 yield of living structure on food
Y_VX_d mol/mol 0.00149553 0.0023188 1.19416e-06 0.00600957 3.36898e-08 0.00974169 yield of dead structure on food
Y_EX mol/mol 0 0 0.0140795 0.00607594 0.0230204 0.010234 yield of living reserve on food
Y_EX_d mol/mol 0.00123761 0.00192906 1.03843e-06 0.00522584 3.05652e-08 0.00883818 yield of dead reserve on food
Y_CX mol/mol 0.8213 0.819899 0.795826 0.801352 0.779063 0.786741 yield of CO2 on food
Y_HX mol/mol 0.700448 0.699253 0.678722 0.683435 0.664427 0.670974 yield of H2O on food
Y_OX mol/mol -0.965582 -0.963935 -0.935633 -0.94213 -0.915926 -0.924952 yield of O2 on food
Y_NX mol/mol 0.0665919 0.0664783 0.0645264 0.0649745 0.0631673 0.0637898 yield of N-waste on food
mu_TX J/mol 462947 462169 448787 451859 439445 443717 yield of heat on food

Remarks

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