Microtus mexicanus: Population traits

at T = 37.5 °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: 2025/11/21
symbol units thin falsethin truethin falsethin truethin falsethin truedescription
f - 0.855627 0.863764 0.931882 0.931882 1 1 scaled functional response
r 1/d 0 0 0.00569629 0.00225333 0.00887891 0.00351823 spec pop growth rate
t2 d NaN NaN 121.684 307.61 78.0667 197.016 population doubling time
a_b d 12.2079 12.2079 12.2079 12.2079 12.2079 12.2079 age at birth
t_x d 533.67 389.183 197.212 197.212 148.758 148.758 time since birth at weaning
t_p d 12.5871 12.5261 12.0756 12.0756 11.7103 11.7103 time since birth at puberty
S_b - 1 1 1 1 1 1 survival probability at birth
S_x - 1 0.525171 1 0.499671 1 0.478391 survival probability at weaning
S_p - 0.999993 0.240122 1 0.206543 1 0.180817 survival probability at puberty
theta_0b - 0.00551658 0.0225831 0.0671814 0.108978 0.102726 0.167321 frac of ind that is embryo
theta_bx - 0.00551655 0.0159751 0.062668 0.0732641 0.0921731 0.108506 fraction of individuals that is baby
theta_xp - 0.235639 0.177838 0.566857 0.315578 0.565603 0.322565 fraction of individuals that is juvenile
theta_pi - 0.753328 0.783604 0.303294 0.50218 0.239498 0.401608 frac of ind that is adult
L_bi cm 1.06741 1.07041 1.0796 1.0904 1.09971 1.11271 mean structural length of post-natals
L2_bi cm^2 1.14111 1.1503 1.18837 1.21515 1.24824 1.28581 mean squared structural length of post-natals
L3_bi cm^3 1.22114 1.23921 1.32564 1.37313 1.4484 1.52246 mean cubed structural length of post-natals
Ww_bi g 20.4192 20.9067 24.0241 24.8847 28.0616 29.4965 mean wet weight of post-natals
L_pi cm 1.07398 1.0842 1.1696 1.16966 1.25396 1.25463 mean structural length of adults
L2_pi cm^2 1.15344 1.17548 1.36797 1.36809 1.57241 1.57409 mean squared structural length of adults
L3_pi cm^3 1.23877 1.27445 1.59998 1.6002 1.97174 1.9749 mean cubed structural length of adults
Ww_pi g 20.7141 21.5013 28.9957 28.9997 38.2009 38.2621 mean wet weight of adults
R 1/d 0.00059894 0.00236145 0.0175226 0.0175327 0.0332618 0.0333998 mean reproduction rate of adults
J_X g/d 3.06716 3.12126 3.47886 3.55726 3.92124 4.03927 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 0.0021706 0.000869806 0.00327963 0.00132608 yield of living structure on food
Y_VX_d mol/mol 0.00018352 0.000374823 1.64124e-07 0.000956793 1.83962e-08 0.00147761 yield of dead structure on food
Y_EX mol/mol 0 0 0.0371664 0.0148933 0.0602606 0.0243656 yield of living reserve on food
Y_EX_d mol/mol 0.0028852 0.0059488 2.81022e-06 0.0163828 3.38015e-07 0.02715 yield of dead reserve on food
Y_CX mol/mol 0.82099 0.817979 0.787439 0.793208 0.765053 0.773583 yield of CO2 on food
Y_HX mol/mol 0.700183 0.697616 0.671569 0.67649 0.652478 0.659752 yield of H2O on food
Y_OX mol/mol -0.965217 -0.961678 -0.925772 -0.932556 -0.899454 -0.909483 yield of O2 on food
Y_NX mol/mol 0.0665667 0.0663226 0.0638464 0.0643142 0.0620313 0.0627229 yield of N-waste on food
mu_TX J/mol 462700 460949 443182 446539 430149 435112 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