Predictions & Data for this entry

Model: std climate: BS, Df migrate:
COMPLETE = 1.0 ecozone: THp food: biH
MRE = 0.070 habitat: 0iTi, 0iTs gender: Dg
SMSE = 0.065 embryo: Tns reprod: O

Zero-variate data
tp3650 3355 (0.08085)dtime since birth at pubertyWiki
am1.095e+04 1.097e+04 (0.001716)dlife spanWiki
Lb 12 11.41 (0.04879)cmtotal length at birthWiki
Li200 210.9 (0.05437)cmultimate total lengthWiki
Wwi2.5e+04 2.973e+04 (0.1891)gultimate wet weightWiki
Ri0.0274 0.02699 (0.01491)#/dmaximum reprod rateguess
Uni-variate data
DatasetFigure(RE)Independent variableDependent variableReference
tW see Fig. 1 (0.09884)time since birthwet weightEricTuma2000
Pseudo-data at Tref
DataGeneralised animalPsittacosaurus mongoliensisUnitDescription
v 0.02 0.02705cm/denergy conductance
kap 0.8 0.9787-allocation fraction to soma
kap_R 0.95 0.95-reproduction efficiency
p_M 18 20.46J/^3vol-spec som maint
k_J 0.002 0.0006561/dmaturity maint rate coefficient
kap_G 0.8 0.8-growth efficiency
k 0.3 0.2516-maintenance ratio


  • Extinct, lived 123.2 till 100 Ma ago (ref: Wiki)


  • Several data are very speculative, such as T, Wwb, Ri
  • Neonate growth is possibly retarted by lower body temperature
  • In view of low somatic maintenance, pseudodata k_J = 0.002 1/d is replaced by pseudodata k = 0.3


  • [Wiki]
  • [EricTuma2000] G. M. Erickson and T. A. Tumanova. Growth curve of Psittacosaurus mongoliensis Osborn (Ceratopsia: Psittacosauridae) inferred firom long bone histology. Zool. J. Linn. Soc., 130:551--566, 2000.
  • [Kooy2010] S.A.L.M. Kooijman. Dynamic Energy Budget theory for metabolic organisation. Cambridge Univ. Press, Cambridge, 2010.

Bibtex file with references for this entry

Bas Kooijman, 2016/10/22 (last modified by Bas Kooijman 2017/11/12)

accepted: 2017/11/12

refer to this entry as: AmP Psittacosaurus mongoliensis version 2017/11/12