Predictions & Data for this entry

Model: abp climate: B, Cs migrate: Ms phylum:
COMPLETE = 2.5 ecozone: TH, TA, TPa food: biH class:
MRE = 0.087 habitat: 0iTg, 0iTs, 0iTa, 0iTd gender: D order:
SMSE = 0.018 embryo: Th reprod: O family:

Zero-variate data

Data Observed Predicted (RE) Unit Description Reference
ab 12.75 12.06 (0.05397) d age at birth Roon1936
tp 21 21.96 (0.04559) d time since birth at puberty TuZhan2012
am 63 62.89 (0.001769) d life span TuZhan2012
Lp 5 5 (6.624e-05) cm ultimate total length Wiki
Wdb 0.012 0.01122 (0.06509) g dry weight at birth Clar1957
Wdp 1 0.9655 (0.03445) g dry weight at puberty TuZhan2012
Ri 11.91 10.78 (0.09499) #/d maximum reprod rate TuZhan2012

Uni- and bivariate data

Data Figure Independent variable Dependent variable (RE) Reference
tW_30 Data at 30, 27, 24, 21, 18 C time since birth dry weight (0.114) TuZhan2012
tW_27 Data at 30, 27, 24, 21, 18 C time since birth dry weight (0.06778) TuZhan2012
tW_24 Data at 30, 27, 24, 21, 18 C time since birth dry weight (0.1101) TuZhan2012
tW_21 Data at 30, 27, 24, 21, 18 C time since birth dry weight (0.1626) TuZhan2012
tW_18 Data at 30, 27, 24, 21, 18 C time since birth dry weight (0.2971) TuZhan2012

Pseudo-data at Tref = 20°C

Data Generalised animal Locusta migratoria Unit Description
v 0.02 0.01397 cm/d energy conductance
kap 0.8 0.3496 - allocation fraction to soma
kap_R 0.95 0.95 - reproduction efficiency
p_M 18 17.87 J/d.cm^3 vol-spec som maint
k_J 0.002 0.002 1/d maturity maint rate coefficient
kap_G 0.8 0.8 - growth efficiency

Discussion

  • L. migratoria does not moult well at 18 C
  • We here assume that only the final instar allocates to reproduction

Facts

  • Solitary form is larger than gregarious form (Ref: Wiki)
  • 1-4 generations per yr in China (Ref: TuZhan2012)
  • stops eating 1-2 d before mouting; no mating at 18C, no egg laying at 18 and 21 C (Ref: TuZhan2012)
  • egg laying at 12.7 d at 30C, 14.6 d at 24C after instar 3 (Ref: TuZhan2012)
  • A male needs during its development about 30 g of plant material to reach its adult weight of 2 g (Ref: waza)
  • A female needs 44 g of food to reach a body weight of 3 g (Ref: waza)
  • Egg length increases by 70% during development till hatching by absorption of water (Ref: waza)

Bibliography

Citation