Octodon degus: 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 - 0.846846 0.85063 0.925315 0.925315 1 1 scaled functional response
r 1/d 0 0 0.00471094 0.00175022 0.00725781 0.00271412 spec pop growth rate
t2 d NaN NaN 147.136 396.034 95.5036 255.386 population doubling time
a_b d 21.3902 21.3902 21.3902 21.3902 21.3902 21.3902 age at birth
t_x d 666.96 509.681 235.74 235.74 183.73 183.73 time since birth at weaning
t_p d 38.5956 38.4756 36.4336 36.4336 34.8658 34.8658 time since birth at puberty
S_b - 1 1 1 1 1 1 survival probability at birth
S_x - 1 0.498857 1 0.473211 1 0.452254 survival probability at weaning
S_p - 0.999515 0.217474 0.999986 0.18597 0.999994 0.164513 survival probability at puberty
theta_0b - 0.0036722 0.0164518 0.095866 0.149358 0.143799 0.221635 frac of ind that is embryo
theta_bx - 0.00367218 0.0113225 0.086676 0.0966815 0.123121 0.137657 fraction of individuals that is baby
theta_xp - 0.110816 0.0890475 0.519715 0.278942 0.507435 0.284576 fraction of individuals that is juvenile
theta_pi - 0.88184 0.883178 0.297743 0.475018 0.225646 0.356131 frac of ind that is adult
L_bi cm 1.43823 1.43755 1.40257 1.42683 1.41055 1.43717 mean structural length of post-natals
L2_bi cm^2 2.07085 2.07283 2.02411 2.10224 2.07983 2.17994 mean squared structural length of post-natals
L3_bi cm^3 2.98395 2.99439 2.97925 3.16119 3.16483 3.42489 mean cubed structural length of post-natals
Ww_bi g 120.017 120.961 130.655 138.634 149.74 162.045 mean wet weight of post-natals
L_pi cm 1.44446 1.45092 1.57652 1.57755 1.69498 1.70072 mean structural length of adults
L2_pi cm^2 2.08648 2.10517 2.48543 2.48866 2.87309 2.89253 mean squared structural length of adults
L3_pi cm^3 3.01384 3.05443 3.91835 3.92598 4.87024 4.91965 mean cubed structural length of adults
Ww_pi g 121.219 123.387 171.839 172.174 230.43 232.768 mean wet weight of adults
R 1/d 0.000195846 0.000869211 0.014308 0.014426 0.0275365 0.0282581 mean reproduction rate of adults
J_X g/d 10.0941 10.149 10.7805 11.1967 11.9714 12.5476 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 0.00130189 0.000494145 0.00191872 0.000740821 yield of living structure on food
Y_VX_d mol/mol 5.14466e-05 0.000105823 1.63091e-07 0.000546385 6.45076e-08 0.000844576 yield of dead structure on food
Y_EX mol/mol 0 0 0.0557925 0.0211766 0.0888635 0.0343104 yield of living reserve on food
Y_EX_d mol/mol 0.00201777 0.00416901 6.98925e-06 0.0234153 2.9876e-06 0.0391157 yield of dead reserve on food
Y_CX mol/mol 0.821914 0.819874 0.771009 0.781618 0.739852 0.754443 yield of CO2 on food
Y_HX mol/mol 0.700972 0.699232 0.657557 0.666605 0.630985 0.643428 yield of H2O on food
Y_OX mol/mol -0.966304 -0.963906 -0.906457 -0.918929 -0.869826 -0.88698 yield of O2 on food
Y_NX mol/mol 0.0666417 0.0664763 0.0625143 0.0633744 0.059988 0.061171 yield of N-waste on food
mu_TX J/mol 463234 462044 433533 439722 415346 423860 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