Branta canadensis: Population traits

at T = 41.1 °C with background hazards for embryo, juv, adult: 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 std f_min f_max date: 2023/10/02
symbol units thinning falsethinning true thinning falsethinning true description
femalemale femalemale femalemale femalemale
f - 0.974246 0.974246 0.97582 0.97582 1 1 1 1 scaled functional response
r 1/d 0 0 0 0 0.0034707 0.0034707 0.000749382 0.000749382 spec pop growth rate
t2 d NaN NaN NaN NaN 199.714 199.714 924.958 924.958 population doubling time
a_b d 17.5162 17.4686 17.5143 17.4668 17.4856 17.4393 17.4856 17.4393 age at birth
t_p d 356.91 132.453 266.366 130.914 150.595 113.28 150.595 113.28 time since birth at puberty
S_b - 1 1 1 1 1 1 1 1 survival probability at birth
S_p - 1 1 0.414911 0.406669 1 1 0.409913 0.40196 survival probability at puberty
theta_0b - 0.00107873 0.00104117 0.00794171 0.00829903 0.0589262 0.0587745 0.085984 0.0915801 frac of ind that is embryo
theta_bp - 0.00107784 0.00104033 0.00497071 0.00514535 0.0554127 0.0552793 0.0528645 0.0557908 fraction of individuals that is juvenile
theta_pi - 0.997843 0.997919 0.987088 0.986556 0.885661 0.885946 0.861151 0.852629 frac of ind that is adult
L_bi cm 3.08387 3.21226 3.0794 3.20667 2.88762 2.99112 2.99331 3.10014 mean structural length of post-natals
L2_bi cm^2 9.51554 10.3247 9.50185 10.3057 8.56817 9.21393 9.17133 9.86797 mean squared structural length of post-natals
L3_bi cm^3 29.3706 33.1963 29.3495 33.1578 25.8552 28.8977 28.4524 31.8463 mean cubed structural length of post-natals
Ww_bi g 1176.55 1383.86 1177.56 1384.43 1062.43 1235.74 1169.14 1361.83 mean wet weight of post-natals
L_pi cm 3.08561 3.21407 3.08775 3.21595 2.97632 3.08546 3.08959 3.2093 mean structural length of adults
L2_pi cm^2 9.52346 10.3332 9.53936 10.3486 8.96695 9.65008 9.60761 10.3772 mean squared structural length of adults
L3_pi cm^3 29.3987 33.2274 29.4821 33.3147 27.2649 30.489 30.0124 33.7278 mean cubed structural length of adults
Ww_pi g 1177.68 1385.16 1182.88 1390.99 1120.35 1303.79 1233.25 1442.29 mean wet weight of adults
R 1/d 0 0.0208239 0.000119106 0.0212839 0 0.00580814 0.00315894 0.0232286 mean reproduction rate of adults
J_X g/d 102.834 116.231 102.852 116.204 95.0439 106.468 101.735 114.026 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 0.109375 0.109375 yield of faeces on food
Y_VX mol/mol 0 0 0 0 0.000944152 0.000942022 0.000209582 0.000209295 yield of living structure on food
Y_VX_d mol/mol 1.7662e-05 1.70944e-05 4.0056e-05 3.92587e-05 1.73803e-10 1.64874e-10 0.000265921 0.00027138 yield of dead structure on food
Y_EX mol/mol 0 0 0 0 0.0378523 0.0393414 0.00840239 0.00874074 yield of living reserve on food
Y_EX_d mol/mol 0.000689857 0.000695522 0.00156707 0.00159991 6.968e-09 6.8856e-09 0.0106611 0.0113336 yield of dead reserve on food
Y_CX mol/mol 0.723058 0.723054 0.722327 0.722301 0.692111 0.690903 0.707757 0.706932 yield of CO2 on food
Y_HX mol/mol 0.769779 0.769774 0.769 0.768973 0.736832 0.735545 0.753489 0.752611 yield of H2O on food
Y_OX mol/mol -0.917727 -0.917722 -0.9168 -0.916767 -0.878448 -0.876915 -0.898307 -0.89726 yield of O2 on food
Y_NX mol/mol 0.16686 0.166859 0.166691 0.166685 0.159718 0.159439 0.163329 0.163138 yield of N-waste on food
mu_TX J/mol 463969 463966 463484 463466 443415 442611 453807 453258 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