Gambusia holbrooki: Population traits

at T = 27.5 °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_min f_max date: 2022/12/20
symbol units thinning falsethinning true thinning falsethinning true description
femalemale femalemale femalemale femalemale
f - 0.260497 0.260497 0.576851 0.576851 1 1 1 1 scaled functional response
r 1/d 0 0 0 0 0.0123573 0.0123573 0.000937342 0.000937342 spec pop growth rate
t2 d NaN NaN NaN NaN 56.092 56.092 739.481 739.481 population doubling time
a_b d 23.7902 NaN 20.9075 23.0497 19.0466 21.0658 19.0466 21.0658 age at birth
t_j d 848.632 NaN 203.891 526.659 106.774 216.442 106.774 216.442 time since birth at metam
t_p d 1230.44 NaN 294.79 760.409 154.571 312.896 154.571 312.896 time since birth at puberty
S_b - 0.999891 NaN 0.999923 0.999818 0.99994 0.999857 0.99994 0.999857 survival probability at birth
S_j - 0.999301 NaN 0.770951 0.898921 0.999652 0.999124 0.63009 0.78137 survival probability at metam
S_p - 0.67217 NaN 0.0783939 0.0721763 0.996466 0.971883 0.0749504 0.0777455 survival probability at puberty
theta_0b - 0.0201131 NaN 0.181463 0.0961937 0.209985 0.230212 0.30055 0.198955 frac of ind that is embryo
theta_bj - 0.0202502 NaN 0.160275 0.0917615 0.166204 0.177874 0.237054 0.173487 frac of ind between b and j
theta_jp - 0.612945 NaN 0.483166 0.710646 0.413939 0.540951 0.342666 0.518196 frac of ind between j and p
theta_pi - 0.346691 NaN 0.175096 0.101399 0.209871 0.0509636 0.11973 0.109362 frac of ind that is adult
L_bi cm 0.264322 NaN 0.278151 0.206371 0.285472 0.197926 0.275959 0.229876 mean structural length of post-natals
L2_bi cm^2 0.0781892 NaN 0.120291 0.0494413 0.110246 0.0443308 0.14081 0.0721663 mean squared structural length of post-natals
L3_bi cm^3 0.0253293 NaN 0.0753339 0.0141477 0.0571535 0.0117338 0.127378 0.0325978 mean cubed structural length of post-natals
Ww_bi g 0.0264614 NaN 0.0827897 0.0149198 0.0669593 0.0128438 0.149233 0.0356816 mean wet weight of post-natals
L_pi cm 0.372984 NaN 0.621598 0.406773 0.518025 0.409539 0.718162 0.530254 mean structural length of adults
L2_pi cm^2 0.140529 NaN 0.430364 0.169303 0.295888 0.173496 0.648614 0.307546 mean squared structural length of adults
L3_pi cm^3 0.0534632 NaN 0.325005 0.0720502 0.188046 0.0763685 0.708216 0.193992 mean cubed structural length of adults
Ww_pi g 0.0558526 NaN 0.357171 0.0759821 0.220309 0.0835931 0.829725 0.212344 mean wet weight of adults
R 1/d 0.00593646 NaN 0.105429 0.014221 0.117099 0.0333567 0.277087 0.0682808 mean reproduction rate of adults
J_X g/d 0.000323322 NaN 0.00118483 0.000219684 0.00190946 0.000330429 0.00246553 0.000625784 mean ingestion rate of wet food by post-natals
Y_PX mol/mol 0.109375 NaN 0.109375 0.109375 0.109375 0.109375 0.109375 0.109375 yield of faeces on food
Y_VX mol/mol 0 NaN 0 0 0.369877 0.438819 0.0484264 0.0488272 yield of living structure on food
Y_VX_d mol/mol 0.12288 NaN 0.215504 0.249568 0.003401 0.0074024 0.219704 0.256004 yield of dead structure on food
Y_EX mol/mol 0 NaN 0 0 0.0634602 0.0415134 0.00830858 0.00461918 yield of living reserve on food
Y_EX_d mol/mol 0.00549196 NaN 0.0213286 0.0136193 0.000583513 0.000700287 0.0376948 0.0242187 yield of dead reserve on food
Y_CX mol/mol 0.762253 NaN 0.653793 0.627437 0.453303 0.40219 0.576492 0.556956 yield of CO2 on food
Y_HX mol/mol 0.548399 NaN 0.470368 0.451406 0.326127 0.289354 0.414754 0.400699 yield of H2O on food
Y_OX mol/mol -0.82895 NaN -0.711 -0.682338 -0.492967 -0.437382 -0.626935 -0.605689 yield of O2 on food
Y_NX mol/mol 0.114338 NaN 0.0980689 0.0941156 0.0679955 0.0603285 0.0864738 0.0835434 yield of N-waste on food
mu_TX J/mol 408039 NaN 353017 340225 250637 226172 313133 304223 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