Hypsibius convergens (Water-bear):  

Predictions & Data for this entry

Model:  abj  

COMPLETE = 1.7
MRE = 0.079
SMSE = 0.071

Zero-variate data
DataObservedPredicted(RE)UnitDescriptionReference
ab7.5 6.657 (0.1124)dage at birthGrev1980
tp 12 14.55 (0.2121)dtime since birth at pubertyGrev1980
am900 900.2 (0.0002289)dlife spanEarth
Lb0.01 0.01029 (0.02948)cmphysical length at birthGrev1980
Lp0.01875 0.01768 (0.05697)cmphysical length at pubertyGrev1980
Li0.0265 0.0273 (0.03023)cmultimate physical lengthMorgKing1976
Wwb5.31e-08 5.795e-08 (0.09137)gwet weight at birthGrev1980
Wwp3.5e-07 2.936e-07 (0.1611)gwet weight at pubertyGrev1980
Wwi9.88e-07 1.081e-06 (0.09395)gultimate wet weightMorgKing1976
Ri0.1 0.1 (1.734e-05)#/dmaximum reprod rateGrev1980
Pseudo-data at Tref
DataGeneralised animalHypsibius convergensUnitDescription
v 0.02 0.001776cm/denergy conductance
kap 0.8 0.9409-allocation fraction to soma
kap_R 0.95 0.95-reproduction efficiency
p_M 18 416.7J/d.cm^3vol-spec som maint
k_J 0.002 0.0021/dmaturity maint rate coefficient
kap_G 0.8 0.8038-growth efficiency

Facts

  • The cuticle is moulted about four times during the life cycle. Some species lay their eggs inside the moulted cuticle, into which males shed sperm. It appears that egg laying and defecation can only happen during moulting. (ref: bumblebee)

Discussion

  • treated as identical to H. conjungens (but this is uncertain)

Bibliography

  • [Wiki] http://en.wikipedia.org/wiki/Tardigrada.
  • [bumblebee] http://www.bumblebee.org/invertebrates/TARDIGRADA.htm.
  • [Earth] http://www.eoearth.org/article/Tardigrada.
  • [Baum1961] H. Baumann. Der Lebensablauf von Hypsibius (H.) convergens Urbanowicz (Tardigrada). Zoologischer Anzeiger, 167:363--381, 1961.
  • [Grev1980] H. Greven. Die Baertierchen, volume 537 of Die Neue Brehm-Bucherei. A. Ziemsen Verlag, Wittenberg Lutherstadt, 1980.
  • [Kooy2010] S.A.L.M. Kooijman. Dynamic Energy Budget theory for metabolic organisation. Cambridge Univ. Press, Cambridge, 2010.
  • [MorgKing1976] C. I. Morgan and P. E. King. British Tardigrades, volume 9 of Synopsis of the British Fauna. Academic Press, London, 1976.

Bibtex files with references for this entry


Bas Kooijman, 2012/12/23 (last modified by Bas Kooijman 2016/10/18)

accepted: 2016/03/01

refer to this entry as: AmP Hypsibius convergens version 2016/03/01 bio.vu.nl/thb/deb/deblab/add_my_pet/