Mirounga leonina: Population traits

at T = 38.1 °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 - 0.717222 0.717222 0.73019 0.73019 1 1 1 1 scaled functional response
r 1/d 0 0 0 0 0.000804067 0.000804067 0.000397609 0.000397609 spec pop growth rate
t2 d NaN NaN NaN NaN 862.051 862.051 1743.29 1743.29 population doubling time
a_b d 259.415 259.415 259.415 259.415 259.415 259.415 259.415 259.415 age at birth
t_x d 3930.86 805.796 3225.91 789.603 1152.94 589.289 1152.94 589.289 time since birth at weaning
t_p d 21.2699 13.9697 20.9499 13.8223 16.463 11.6909 16.463 11.6909 time since birth at puberty
S_b - 0.999999 0.999999 0.999999 0.999999 0.999999 0.999999 0.999999 0.999999 survival probability at birth
S_x - 0.999989 0.999995 0.824027 0.601397 0.99999 0.999995 0.695047 0.513922 survival probability at weaning
S_p - 0.993348 0.999964 0.489692 0.334792 0.999825 0.999983 0.379542 0.305136 survival probability at puberty
theta_0b - 0.0183908 0.0132195 0.0360114 0.0721983 0.18855 0.188339 0.216353 0.331102 frac of ind that is embryo
theta_bx - 0.0183905 0.0132194 0.032553 0.0555186 0.15305 0.152879 0.162081 0.213337 fraction of individuals that is baby
theta_xp - 0.259814 0.0278423 0.234295 0.064913 0.338167 0.153565 0.270058 0.133325 fraction of individuals that is juvenile
theta_pi - 0.703405 0.945719 0.697141 0.80737 0.320233 0.505217 0.351508 0.322236 frac of ind that is adult
L_bi cm 40.0313 70.5943 40.3601 67.9922 43.5357 61.6822 44.4201 57.0067 mean structural length of post-natals
L2_bi cm^2 1606.97 5041.16 1636.47 4783.36 1963.2 4218.4 2057.49 3761.72 mean squared structural length of post-natals
L3_bi cm^3 64656.8 362569 66603.9 343342 91333.9 312798 98787.6 279516 mean cubed structural length of post-natals
Ww_bi g 123892 960076 128726 919395 207999 1.03153e+06 224974 921770 mean wet weight of post-natals
L_pi cm 40.8721 71.9084 41.5857 72.3969 52.1181 74.6311 53.3443 76.917 mean structural length of adults
L2_pi cm^2 1670.53 5187.87 1729.38 5270.61 2725.2 5762.8 2855.4 6166.5 mean squared structural length of adults
L3_pi cm^3 68278.1 375276 71918.1 385418 142958 459390 153347 513226 mean cubed structural length of adults
Ww_pi g 130831 993726 138997 1.03207e+06 325565 1.51494e+06 349225 1.69248e+06 mean wet weight of adults
R 1/d 9.97705e-05 0.0067604 0.000197282 0.00695269 0.00204063 0.008204 0.00225053 0.00909827 mean reproduction rate of adults
J_X g/d 642.818 3627.45 666.455 3504.17 1094.94 4232.19 1147.53 3774.01 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 0.0670706 0.0594281 0.034229 0.0294483 yield of living structure on food
Y_VX_d mol/mol 0.00767917 0.00566229 0.0120723 0.0118797 0.000225498 6.84857e-05 0.029482 0.0366975 yield of dead structure on food
Y_EX mol/mol 0 0 0 0 0.0856726 0.13655 0.0437224 0.0676644 yield of living reserve on food
Y_EX_d mol/mol 0.00703522 0.00933137 0.0112599 0.0199316 0.000288039 0.000157362 0.0376589 0.084321 yield of dead reserve on food
Y_CX mol/mol 0.810217 0.809959 0.802246 0.794403 0.682066 0.64234 0.689618 0.622057 yield of CO2 on food
Y_HX mol/mol 0.690996 0.690776 0.684198 0.677509 0.581702 0.547821 0.588143 0.530523 yield of H2O on food
Y_OX mol/mol -0.952553 -0.952249 -0.943181 -0.93396 -0.801888 -0.755183 -0.810767 -0.731337 yield of O2 on food
Y_NX mol/mol 0.0656933 0.0656724 0.065047 0.064411 0.0553026 0.0520816 0.055915 0.050437 yield of N-waste on food
mu_TX J/mol 456776 456525 452335 447740 384827 361209 389063 349682 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