Hydrochoerus hydrochaeris: Population traits

at T = 37.1 °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_min f_max date: 2023/03/16
symbol units thinning falsethinning true thinning falsethinning true description
femalemale femalemale femalemale femalemale
f - 0.806613 0.806613 0.818238 0.818238 1 1 1 1 scaled functional response
r 1/d 0 0 0 0 0.00384837 0.00384837 0.000905933 0.000905933 spec pop growth rate
t2 d NaN NaN NaN NaN 180.114 180.114 765.12 765.12 population doubling time
a_b d 11.6479 NaN 11.6479 NaN 11.6479 11.6479 11.6479 11.6479 age at birth
t_x d 1515.83 NaN 960.617 NaN 379.254 543.154 379.254 543.154 time since birth at weaning
t_p d 20.5064 NaN 20.1808 NaN 16.2985 18.4161 16.2985 18.4161 time since birth at puberty
S_b - 1 NaN 1 NaN 1 1 1 1 survival probability at birth
S_x - 1 NaN 0.799381 NaN 1 1 0.756094 0.781556 survival probability at weaning
S_p - 1 NaN 0.0869474 NaN 1 1 0.0803996 0.0837568 survival probability at puberty
theta_0b - 0.00114993 NaN 0.0124817 NaN 0.0438359 0.0438359 0.0890194 0.0770039 frac of ind that is embryo
theta_bx - 0.00114993 NaN 0.0111492 NaN 0.0419142 0.0419142 0.0765261 0.0673077 fraction of individuals that is baby
theta_xp - 0.148499 NaN 0.153569 NaN 0.692086 0.796015 0.476099 0.532508 fraction of individuals that is juvenile
theta_pi - 0.849202 NaN 0.8228 NaN 0.222164 0.118234 0.358356 0.323181 frac of ind that is adult
L_bi cm 34.461 NaN 33.6765 NaN 27.4794 25.1575 28.8634 27.0042 mean structural length of post-natals
L2_bi cm^2 1194.23 NaN 1163.17 NaN 848.264 701.432 982.959 836.201 mean squared structural length of post-natals
L3_bi cm^3 41510.8 NaN 40647.6 NaN 28373.3 21048.1 36810.3 28095.5 mean cubed structural length of post-natals
Ww_bi g 51700.3 NaN 50769 NaN 37007.8 26746.7 48012.3 35702 mean wet weight of post-natals
L_pi cm 35.0271 NaN 35.5222 NaN 40.0989 37.2775 42.0093 38.0953 mean structural length of adults
L2_pi cm^2 1226.9 NaN 1261.83 NaN 1611.98 1390.3 1768.41 1451.82 mean squared structural length of adults
L3_pi cm^3 42974.6 NaN 44823.1 NaN 64963.1 51878.8 74584.7 55350.3 mean cubed structural length of adults
Ww_pi g 53523.3 NaN 55984.2 NaN 84732.5 65924.5 97282.1 70335.9 mean wet weight of adults
R 1/d 0.000119814 NaN 0.00133797 NaN 0.0165629 0.00683991 0.0212196 0.00850579 mean reproduction rate of adults
J_X g/d 1024 NaN 1011.74 NaN 901.729 663.373 1044.91 790.83 mean ingestion rate of wet food by post-natals
Y_PX mol/mol 0.109375 NaN 0.109375 NaN 0.109375 0.109375 0.109375 0.109375 yield of faeces on food
Y_VX mol/mol 0 NaN 0 NaN 0.121091 0.122105 0.0319144 0.0321847 yield of living structure on food
Y_VX_d mol/mol 0.0041483 NaN 0.00988077 NaN 1.14199e-10 9.31441e-10 0.0466647 0.0453349 yield of dead structure on food
Y_EX mol/mol 0 NaN 0 NaN 0.03685 0.0330587 0.00971207 0.0087137 yield of living reserve on food
Y_EX_d mol/mol 0.00101826 NaN 0.00246035 NaN 3.47528e-11 2.52179e-10 0.0142009 0.012274 yield of dead reserve on food
Y_CX mol/mol 0.819049 NaN 0.812413 NaN 0.677733 0.680302 0.729023 0.732709 yield of CO2 on food
Y_HX mol/mol 0.698528 NaN 0.692868 NaN 0.578006 0.580198 0.621749 0.624893 yield of H2O on food
Y_OX mol/mol -0.962936 NaN -0.955134 NaN -0.796794 -0.799815 -0.857095 -0.861428 yield of O2 on food
Y_NX mol/mol 0.0664094 NaN 0.0658713 NaN 0.0549513 0.0551596 0.05911 0.0594088 yield of N-waste on food
mu_TX J/mol 461764 NaN 458170 NaN 384983 386536 412847 414949 yield of heat on food

Remarks

  • Reprod-code O applies. Sex ratio is assumed to be 1:1. Parameters of male and female differ.
  • Buffer handling rule: release each egg as soon as reproduction buffer allows
  • Weights of adults do not include reproduction buffer