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 | (0.04549) | d | time since birth at puberty | TuZhan2012 |
| am | 63 | 62.89 | (0.001769) | d | life span | TuZhan2012 |
| Lp | 5 | 5 | (7.801e-05) | cm | ultimate total length | Wiki |
| Wdb | 0.012 | 0.01122 | (0.06509) | g | dry weight at birth | Clar1957 |
| Wdp | 1 | 0.9651 | (0.03487) | g | dry weight at puberty | TuZhan2012 |
| Ri | 11.91 | 10.78 | (0.09539) | #/d | maximum reprod rate | TuZhan2012 |
Uni- and bivariate data
| Data | Figure | Independent variable | Dependent variable | (RE) | Reference |
|---|---|---|---|---|---|
| tW_30 |   | time since birth | dry weight | (0.1141) | TuZhan2012 |
| tW_27 | | time since birth | dry weight | (0.06783) | TuZhan2012 |
| tW_24 | | time since birth | dry weight | (0.1102) | TuZhan2012 |
| tW_21 | | time since birth | dry weight | (0.1626) | TuZhan2012 |
| tW_18 | | time since birth | dry weight | (0.2969) | TuZhan2012 |
Pseudo-data at Tref = 20°C
| Data | Generalised animal | Locusta migratoria | Unit | Description |
|---|---|---|---|---|
| v | 0.02 | 0.01397 | cm/d | energy conductance |
| 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 |
| k | 0.3 | 0.4976 | - | maintenance ratio |
| kap | 0.8 | 0.3496 | - | allocation fraction to soma |
| kap_G | 0.8 | 0.8 | - | growth efficiency |
| kap_R | 0.95 | 0.95 | - | reproduction 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