Lepus americanus: Population traits

at T = 39.8 °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: 2025/07/07
symbol units thin falsethin truethin falsethin truethin falsethin truedescription
f - 0.972023 0.972832 0.986416 0.986416 1 1 scaled functional response
r 1/d 0 0 0.00442578 0.00144604 0.00629883 0.00230067 spec pop growth rate
t2 d NaN NaN 156.616 479.341 110.044 301.28 population doubling time
a_b d 13.3341 13.3341 13.3341 13.3341 13.3341 13.3341 age at birth
t_x d 775.6 592.195 351.128 351.128 295.71 295.71 time since birth at weaning
t_p d 20.6746 20.6675 20.5503 20.5503 20.4377 20.4377 time since birth at puberty
S_b - 1 1 1 1 1 1 survival probability at birth
S_x - 1 0.415352 1 0.412549 1 0.409837 survival probability at weaning
S_p - 0.999856 0.118152 0.99999 0.114948 0.999995 0.11192 survival probability at puberty
theta_0b - 0.00192144 0.0157876 0.0573079 0.126794 0.0805599 0.179926 frac of ind that is embryo
theta_bx - 0.00192143 0.00992646 0.0540235 0.078057 0.0740697 0.10926 fraction of individuals that is baby
theta_xp - 0.109838 0.0892054 0.689401 0.345539 0.702619 0.383837 fraction of individuals that is juvenile
theta_pi - 0.886319 0.885081 0.199268 0.44961 0.142752 0.326977 frac of ind that is adult
L_bi cm 1.89579 1.88421 1.74048 1.75164 1.69441 1.68739 mean structural length of post-natals
L2_bi cm^2 3.59837 3.56679 3.12439 3.19247 2.99248 3.01742 mean squared structural length of post-natals
L3_bi cm^3 6.83467 6.76746 5.71535 5.9435 5.42409 5.5741 mean cubed structural length of post-natals
Ww_bi g 1446.59 1433.55 1227.51 1276.51 1180.92 1213.58 mean wet weight of post-natals
L_pi cm 1.90283 1.90442 1.93098 1.931 1.95743 1.95753 mean structural length of adults
L2_pi cm^2 3.62077 3.6268 3.72869 3.72876 3.83154 3.83192 mean squared structural length of adults
L3_pi cm^3 6.88972 6.90694 7.20003 7.20022 7.49998 7.5011 mean cubed structural length of adults
Ww_pi g 1458.24 1463.1 1546.38 1546.42 1632.88 1633.12 mean wet weight of adults
R 1/d 0.000169279 0.00133451 0.0209331 0.020946 0.0405638 0.0406377 mean reproduction rate of adults
J_X g/d 146.198 145.036 128.82 131.628 125.081 126.124 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 0.000196358 6.52945e-05 0.000273147 0.00010168 yield of living structure on food
Y_VX_d mol/mol 6.80384e-06 1.56538e-05 5.41823e-09 8.48528e-05 2.48315e-09 0.000131349 yield of dead structure on food
Y_EX mol/mol 0 0 0.0419762 0.0139583 0.0591958 0.0220358 yield of living reserve on food
Y_EX_d mol/mol 0.00143326 0.00330029 1.15828e-06 0.0181393 5.38144e-07 0.0284657 yield of dead reserve on food
Y_CX mol/mol 0.822496 0.820761 0.784817 0.793999 0.768819 0.776899 yield of CO2 on food
Y_HX mol/mol 0.701468 0.699988 0.669334 0.677164 0.655689 0.66258 yield of H2O on food
Y_OX mol/mol -0.966989 -0.964949 -0.922691 -0.933485 -0.903882 -0.913381 yield of O2 on food
Y_NX mol/mol 0.0666889 0.0665482 0.0636338 0.0643783 0.0623367 0.0629918 yield of N-waste on food
mu_TX J/mol 463572 462558 441551 446917 432200 436923 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