Xenopus laevis: Population traits

at T = 23 °C with background hazards for embryo, juv, adult: 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 std f_min f_max date: 2024/12/17
symbol units thinning falsethinning true thinning falsethinning true description
femalemale femalemale femalemale femalemale
f - 0.613533 0.613533 0.61427 0.61427 1 1 1 1 scaled functional response
r 1/d 0 0 0 0 0.0177567 0.0177567 0.00473183 0.00473183 spec pop growth rate
t2 d NaN NaN NaN NaN 39.0359 39.0359 146.486 146.486 population doubling time
a_b d 4.58151 4.84699 4.58072 4.84608 4.29286 4.50874 4.29286 4.50874 age at birth
t_p d 4193.86 NaN 2519.84 NaN 384.156 817.284 384.156 817.284 time since birth at puberty
S_b - 1 1 1 1 1 1 1 1 survival probability at birth
S_p - 1 1 0.49375 0.560355 1 1 0.420814 0.475509 survival probability at puberty
theta_0b - 0.000407085 0.000488394 0.0851444 0.0536345 0.0733456 0.0768854 0.364179 0.321305 frac of ind that is embryo
theta_bp - 0.000407452 0.000488885 0.0597899 0.0401286 0.0680109 0.0710238 0.231663 0.217006 fraction of individuals that is juvenile
theta_pi - 0.999185 0.999023 0.855066 0.906237 0.858643 0.852091 0.404158 0.461688 frac of ind that is adult
L_bi cm 2.73058 1.87675 2.23944 1.64047 1.07758 0.86175 0.558147 0.530426 mean structural length of post-natals
L2_bi cm^2 7.50681 3.54503 5.95177 3.01138 1.70853 1.04444 0.729677 0.572586 mean squared structural length of post-natals
L3_bi cm^3 20.6902 6.71333 16.2712 5.65836 3.42957 1.57025 1.70628 1.00146 mean cubed structural length of post-natals
Ww_bi g 37.3829 10.4349 29.4144 8.79888 7.93943 2.98906 3.95003 1.90633 mean wet weight of post-natals
L_pi cm 2.73161 1.87758 2.38263 1.70489 1.1467 0.917122 0.763943 0.688879 mean structural length of adults
L2_pi cm^2 7.50985 3.54674 6.36534 3.14319 1.84048 1.12821 1.12485 0.82395 mean squared structural length of adults
L3_pi cm^3 20.6986 6.71661 17.4084 5.90863 3.70051 1.70048 2.67958 1.46866 mean cubed structural length of adults
Ww_pi g 37.3981 10.44 31.4702 9.18805 8.56665 3.23694 6.20322 2.79567 mean wet weight of adults
R 1/d 0 0 0 0 0 0 0 0 mean reproduction rate of adults
J_X g/d 1.07838 0.349917 0.856022 0.2976 0.40004 0.168031 0.170848 0.0921188 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 0.152229 0.165937 0.0472574 0.0514417 yield of living structure on food
Y_VX_d mol/mol 0.00175485 0.0019899 0.00494791 0.00550972 1.45716e-07 2.31184e-07 0.0879849 0.0933919 yield of dead structure on food
Y_EX mol/mol 0 0 0 0 0.20018 0.149932 0.0621431 0.04648 yield of living reserve on food
Y_EX_d mol/mol 0.0014158 0.00110312 0.00399673 0.00305802 1.91616e-07 2.08886e-07 0.1157 0.0843841 yield of dead reserve on food
Y_CX mol/mol 0.820895 0.820967 0.815554 0.815903 0.497849 0.531649 0.534225 0.568808 yield of CO2 on food
Y_HX mol/mol 0.701089 0.70115 0.696527 0.696825 0.42519 0.454057 0.456257 0.485793 yield of H2O on food
Y_OX mol/mol -0.965107 -0.965191 -0.958827 -0.959237 -0.585309 -0.625047 -0.628075 -0.668733 yield of O2 on food
Y_NX mol/mol 0.0665591 0.0665649 0.066126 0.0661543 0.0403661 0.0431067 0.0433155 0.0461195 yield of N-waste on food
mu_TX J/mol 462724 462777 459760 459992 281361 301810 301781 322481 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