Predictions & Data for this entry
| Model: stx | climate: MC, ME | migrate: Mo | phylum: |
| COMPLETE = 2.5 | ecozone: MN, MAN | food: bxM, xiCi | class: |
| MRE = 0.059 | habitat: 0iMp | gender: Dg | order: |
| SMSE = 0.007 | embryo: Tv | reprod: O | family: |
Zero-variate data
| Data | Observed | Predicted | (RE) | Unit | Description | Reference |
|---|---|---|---|---|---|---|
| tg | 450 | 487.4 | (0.08305) | d | gestation time | ADW |
| tx | 730 | 704.1 | (0.03542) | d | time since birth at weaning | AnAge |
| tp | 1825 | 2024 | (0.1088) | d | time since birth at puberty | ADW |
| tpm | 2555 | 2311 | (0.09567) | d | time since birth at puberty | ADW |
| am | 1.46e+04 | 1.46e+04 | (5.485e-05) | d | life span | AnAge |
| Lb | 120 | 121.2 | (0.009794) | cm | total length at birth | ADW |
| Li | 270 | 291.5 | (0.0795) | cm | ultimate length fem. | ADW |
| Lim | 320 | 343 | (0.07188) | cm | ultimate length male | ADW |
| Wwb | 6e+04 | 5.763e+04 | (0.03945) | g | wet weight at birth | AnAge |
| Wwx | 2e+05 | 2.094e+05 | (0.04676) | g | wet weight at weaning | AnAge |
| Wwi | 8.5e+05 | 8.02e+05 | (0.05644) | g | ultimate wet weight fem. | ADW |
| Wwim | 1.5e+06 | 1.503e+06 | (0.002033) | g | ultimate wet weight male | ADW |
| Ri | 0.00137 | 0.001373 | (0.002549) | #/d | maximum reprod rate | ADW |
Uni- and bivariate data
| Data | Figure | Independent variable | Dependent variable | (RE) | Reference |
|---|---|---|---|---|---|
| tL |   | time since birth | total length | (0.06453) | GarlStew1998 |
| tLm | | time since birth | total length | (0.0456) | GarlStew1998 |
| LW |   | standard length | wet weight | (0.1617) | GarlStew1998 |
| LWm | | standard length | wet weight | (0.1062) | GarlStew1998 |
Pseudo-data at Tref = 20°C
| Data | Generalised animal | Odobenus rosmarus rosmarus | Unit | Description |
|---|---|---|---|---|
| v | 0.02 | 0.03041 | cm/d | energy conductance |
| kap | 0.8 | 0.8268 | - | allocation fraction to soma |
| kap_R | 0.95 | 0.95 | - | reproduction efficiency |
| p_M | 18 | 19.48 | J/d.cm^3 | vol-spec som maint |
| k_J | 0.002 | 0.002 | 1/d | maturity maint rate coefficient |
| kap_G | 0.8 | 0.7998 | - | growth efficiency |
Discussion
- Males are assumed to differ from females by {p_Am} only.
Facts
- This species is subdivided into three subspecies:the Atlantic walrus (O. r. rosmarus) which lives in the Atlantic Ocean, the Pacific walrus (O. r. divergens) which lives in the Pacific Ocean, and O. r. laptevi, which lives in the Laptev Sea of the Arctic Ocean. (Ref: Wiki)
- Sexual dimorphism: males larger (Ref: ADW)
Acknowledgment
- The creation of this entry was support by the Norwegian Science Council (NFR 255295)
Bibliography