Sciurus niger: Population traits

at T = 38.7 °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 - 0.980692 0.985763 0.992881 0.992881 1 1 scaled functional response
r 1/d 0 0 0.00204102 0.000276618 0.00266016 0.000467283 spec pop growth rate
t2 d NaN NaN 339.609 2505.8 260.566 1483.36 population doubling time
a_b d 18.4648 18.4648 18.4648 18.4648 18.4648 18.4648 age at birth
t_x d 812.08 560.334 477.926 477.926 433.876 433.876 time since birth at weaning
t_p d 85.0096 84.6746 84.2148 84.2148 83.7667 83.7667 time since birth at puberty
S_b - 1 1 1 1 1 1 survival probability at birth
S_x - 1 0.38519 1 0.38406 1 0.382948 survival probability at weaning
S_p - 1 0.0748651 1 0.0738865 1 0.0729587 survival probability at puberty
theta_0b - 0.00294284 0.0366982 0.036986 0.0722217 0.0479326 0.100251 frac of ind that is embryo
theta_bx - 0.00294283 0.0223123 0.0356178 0.0436437 0.0456348 0.0603034 fraction of individuals that is baby
theta_xp - 0.126483 0.102499 0.564323 0.165774 0.60623 0.20498 fraction of individuals that is juvenile
theta_pi - 0.867632 0.83849 0.363073 0.718361 0.300203 0.634465 frac of ind that is adult
L_bi cm 2.94877 2.90185 2.73215 2.83363 2.67741 2.77885 mean structural length of post-natals
L2_bi cm^2 8.72072 8.54557 7.71258 8.2723 7.4692 8.05631 mean squared structural length of post-natals
L3_bi cm^3 25.8301 25.3258 22.1686 24.4695 21.3243 23.8072 mean cubed structural length of post-natals
Ww_bi g 722.67 712.093 627.664 692.808 607.934 678.717 mean wet weight of post-natals
L_pi cm 2.97297 2.98833 3.00959 3.00986 3.03068 3.03132 mean structural length of adults
L2_pi cm^2 8.83854 8.93011 9.05761 9.05923 9.185 9.1889 mean squared structural length of adults
L3_pi cm^3 26.2767 26.6861 27.2596 27.267 27.8368 27.8545 mean cubed structural length of adults
Ww_pi g 735.164 750.341 771.806 772.013 793.597 794.102 mean wet weight of adults
R 1/d 0.000187607 0.00237708 0.0054146 0.00545295 0.00843675 0.00852913 mean reproduction rate of adults
J_X g/d 40.9173 40.3028 36.6369 39.2957 35.7352 38.5441 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 0.001235 0.00017225 0.0015874 0.000288622 yield of living structure on food
Y_VX_d mol/mol 0.000102651 0.00025074 8.5435e-09 0.00034745 4.58349e-10 0.000465989 yield of dead structure on food
Y_EX mol/mol 0 0 0.0337317 0.00470469 0.0436677 0.00793968 yield of living reserve on food
Y_EX_d mol/mol 0.00276931 0.00679939 2.3335e-07 0.00948996 1.26087e-08 0.0128189 yield of dead reserve on food
Y_CX mol/mol 0.821172 0.817307 0.791484 0.810217 0.781967 0.803928 yield of CO2 on food
Y_HX mol/mol 0.700339 0.697042 0.675019 0.690996 0.666903 0.685633 yield of H2O on food
Y_OX mol/mol -0.965431 -0.960888 -0.930528 -0.952553 -0.91934 -0.945159 yield of O2 on food
Y_NX mol/mol 0.0665815 0.0662681 0.0641744 0.0656933 0.0634027 0.0651834 yield of N-waste on food
mu_TX J/mol 462803 460550 445501 456419 439954 452753 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