Crocodylus niloticus (Nile crocodile):  

Predictions & Data for this entry

Model:  std  

MRE = 0.065
SMSE = 0.067

Zero-variate data
ab 90 101 (0.1227)dage at birthcrocodilian
ap5110 5301 (0.03736)dage at puberty for femaleWiki
am3.285e+04 2.987e+04 (0.09077)dlife spanWiki
Lb 29 24.45 (0.157)cmtotal length at birthWiki
Lp280 289.4 (0.03357)cmtotal length at pubertyWiki
Lpm330 319.3 (0.03236)cmtotal length at pubertyWiki
Li427 533.2 (0.2487)cmultimate total length for femaleWiki
Lim610 589.1 (0.03429)cmultimate total length for maleWiki
Wwb 70 70.07 (0.0009318)gwet weight at birthWiki
Wwpm1.55e+05 1.561e+05 (0.007321)gwet weight at pubertyWiki
Wwi7.63e+05 7.268e+05 (0.04741)gultimate wet weight of femaleWiki
Wwim1.09e+06 1.076e+06 (0.01282)gultimate wet weight of maleWiki
Ri0.2603 0.2597 (0.002367)#/dreprod rate at 364 cmWiki
Uni-variate data
DatasetFigure(RE)Independent variableDependent variableReference
LW see Fig. 1 (0.08827)total lengthwet weight NgwePatz2013
Pseudo-data at Tref
DataGeneralised animalCrocodylus niloticusUnitDescription
v 0.02 0.01374cm/denergy conductance
kap 0.8 0.6599-allocation fraction to soma
kap_R 0.95 0.95-reproduction efficiency
p_M 18 23.32J/^3vol-spec som maint
k_J 0.002 0.0021/dmaturity maint rate coefficient
kap_G 0.8 0.8374-growth efficiency


  • temperature effects sex of neonate: below 31.7C or above 34.5C neonates are female (ref: Wiki)


  • Males are assumed to differ from females by {p_Am} only


  • [Wiki]
  • [Kooy2010] S.A.L.M. Kooijman. Dynamic Energy Budget theory for metabolic organisation. Cambridge Univ. Press, Cambridge, 2010.
  • [NgwePatz2013] A. Ngwanya, N. Patzke, M. A. Sprocter, J.-L. Kruger, L.-A. Dell, R. Chawana, P. Mazengenya, B. K. Billings, O. Olaleye, S. Herculano-Houzel, and P. R. Manger. The continuously growing central nervous system of the Nile crocodile (Crocodylus niloticus). The Anatomical Record, 296:1489--1500, 2013.

Bibtex files with references for this entry

Bas Kooijman, 2016/11/01

accepted: 2016/11/01

refer to this entry as: AmP Crocodylus niloticus version 2016/11/01