Psammomys obesus: Population traits

at T = 37.6 °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: 2022/12/20
symbol units thin falsethin truethin falsethin truethin falsethin truedescription
f - 0.64232 0.656685 0.828343 0.828343 1 1 scaled functional response
r 1/d 0 0 0.0105293 0.0036735 0.0155969 0.00503206 spec pop growth rate
t2 d NaN NaN 65.8303 188.688 44.4413 137.746 population doubling time
a_b d 16.8561 16.8561 16.8561 16.8561 16.8561 16.8561 age at birth
t_x d 453.896 316.022 130.753 130.753 100.033 100.033 time since birth at weaning
t_p d 35.1151 34.5212 29.861 29.861 27.4428 27.4428 time since birth at puberty
S_b - 1 1 1 1 1 1 survival probability at birth
S_x - 0.999998 0.503064 0.999998 0.43811 0.999998 0.399344 survival probability at weaning
S_p - 0.979978 0.222429 0.999731 0.151454 0.999899 0.122684 survival probability at puberty
theta_0b - 0.0120168 0.049257 0.162746 0.247521 0.231222 0.336992 frac of ind that is embryo
theta_bx - 0.0120167 0.0340395 0.136279 0.150845 0.177766 0.192419 fraction of individuals that is baby
theta_xp - 0.310045 0.217035 0.490179 0.273446 0.429615 0.239756 fraction of individuals that is juvenile
theta_pi - 0.665921 0.699668 0.210796 0.328188 0.161396 0.230833 frac of ind that is adult
L_bi cm 0.950188 0.956915 0.988279 1.01075 1.02029 1.0485 mean structural length of post-natals
L2_bi cm^2 0.9059 0.923872 1.03002 1.09129 1.13374 1.23424 mean squared structural length of post-natals
L3_bi cm^3 0.865613 0.896965 1.11512 1.22993 1.34239 1.57008 mean cubed structural length of post-natals
Ww_bi g 34.8002 36.8471 57.4918 63.4109 83.2729 97.3977 mean wet weight of post-natals
L_pi cm 0.963094 0.984631 1.22715 1.235 1.42068 1.45871 mean structural length of adults
L2_pi cm^2 0.92755 0.969498 1.50607 1.52534 2.02083 2.13018 mean squared structural length of adults
L3_pi cm^3 0.893317 0.954598 1.84862 1.8841 2.87804 3.11403 mean cubed structural length of adults
Ww_pi g 35.914 39.2146 95.3083 97.1378 178.535 193.174 mean wet weight of adults
R 1/d 0.0010689 0.00417457 0.0418608 0.0433701 0.0743078 0.0829857 mean reproduction rate of adults
J_X g/d 3.85502 4.01943 5.65263 5.98889 7.51119 8.17704 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 0.00207716 0.000754421 0.00278745 0.000966212 yield of living structure on food
Y_VX_d mol/mol 0.000167198 0.000335454 3.02089e-06 0.00092934 1.26363e-06 0.0012495 yield of dead structure on food
Y_EX mol/mol 0 0 0.105014 0.038141 0.170128 0.0589713 yield of living reserve on food
Y_EX_d mol/mol 0.00655465 0.0134449 0.000152726 0.0469843 7.71237e-05 0.0762611 yield of dead reserve on food
Y_CX mol/mol 0.81761 0.811081 0.724625 0.74353 0.663809 0.696689 yield of CO2 on food
Y_HX mol/mol 0.697301 0.691733 0.617998 0.634122 0.566131 0.594173 yield of H2O on food
Y_OX mol/mol -0.961245 -0.953569 -0.851923 -0.87415 -0.780424 -0.81908 yield of O2 on food
Y_NX mol/mol 0.0662927 0.0657633 0.0587533 0.0602862 0.0538224 0.0564883 yield of N-waste on food
mu_TX J/mol 460724 456914 406450 417484 370927 390123 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