Zidona dufresnii: Population traits

at T = 18 °C with background hazards for embryo, larva, 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 abj f_minf f_max date: 2025/05/19
symbol units thin falsethin truethin falsethin truethin falsethin truedescription
f - 0.504957 0.532415 0.766207 0.766207 1 1 scaled functional response
r 1/d 0 0 0.00152305 0.000301088 0.00183003 0.000367658 spec pop growth rate
t2 d NaN NaN 455.106 2302.14 378.762 1885.3 population doubling time
a_b d 96.6594 96.4541 95.277 95.277 94.6292 94.6292 age at birth
t_j d 0.0101628 0.0100717 0.00956344 0.00956344 0.00929492 0.00929492 time since birth at metam
t_p d 9132.16 6581.54 3663.12 3663.12 3092.73 3092.73 time since birth at puberty
S_b - 0.999998 0.999998 0.999998 0.999998 0.999998 0.999998 survival probability at birth
S_j - 0.999998 0.99973 0.999998 0.999728 0.999998 0.999728 survival probability at metam
S_p - 0.999989 0.296547 0.99999 0.282496 0.99999 0.274957 survival probability at puberty
theta_0b - 0.0104674 0.411892 0.135133 0.483488 0.159027 0.499349 frac of ind that is embryo
theta_bj - 1.10103e-06 4.30227e-05 1.26087e-05 4.78515e-05 1.43123e-05 4.82136e-05 frac of ind between b and j
theta_jp - 0.0104709 0.223411 0.116914 0.249724 0.133778 0.253239 frac of ind between j and p
theta_pi - 0.979061 0.364654 0.74794 0.26674 0.707181 0.247363 frac of ind that is adult
L_bi cm 1.06392 0.368718 0.4105 0.236577 0.381385 0.223558 mean structural length of post-natals
L2_bi cm^2 1.24334 0.302236 0.251683 0.134098 0.222978 0.121911 mean squared structural length of post-natals
L3_bi cm^3 1.51228 0.335584 0.199418 0.137045 0.174031 0.130687 mean cubed structural length of post-natals
Ww_bi g 13.3534 3.10608 2.5687 1.76527 2.87259 2.15714 mean wet weight of post-natals
L_pi cm 1.07428 0.539601 0.459607 0.373086 0.435164 0.358925 mean structural length of adults
L2_pi cm^2 1.25654 0.482339 0.289531 0.251686 0.263319 0.237894 mean squared structural length of adults
L3_pi cm^3 1.52845 0.540738 0.23044 0.264598 0.206766 0.263638 mean cubed structural length of adults
Ww_pi g 13.4961 5.00493 2.9683 3.40828 3.41292 4.35166 mean wet weight of adults
R 1/d 0 0 0 0 0 0 mean reproduction rate of adults
J_X g/d 0.111821 0.02866 0.0343464 0.0182999 0.0397139 0.0217131 mean ingestion rate of wet food by post-natals
Y_PX mol/mol 0.328125 0.328125 0.328125 0.328125 0.328125 0.328125 yield of faeces on food
Y_VX mol/mol 0 0 0.00884293 0.0022548 0.00801943 0.00221286 yield of living structure on food
Y_VX_d mol/mol 0.00227561 0.00460835 4.33234e-05 0.00518971 2.35275e-05 0.00474698 yield of dead structure on food
Y_EX mol/mol 0 0 0.105063 0.0267892 0.124351 0.034313 yield of living reserve on food
Y_EX_d mol/mol 0.017818 0.0380453 0.000514724 0.0616588 0.000364822 0.0736077 yield of dead reserve on food
Y_CX mol/mol 0.651781 0.629221 0.557411 0.575983 0.539116 0.556994 yield of CO2 on food
Y_HX mol/mol 0.470731 0.454438 0.402575 0.415987 0.389362 0.402274 yield of H2O on food
Y_OX mol/mol -0.708812 -0.684278 -0.606185 -0.626381 -0.586289 -0.605731 yield of O2 on food
Y_NX mol/mol 0.0977672 0.0943832 0.0836117 0.0863974 0.0808674 0.0835492 yield of N-waste on food
mu_TX J/mol 356562 344271 304989 315131 294885 304664 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