Predictions & Data for this entry
| Model: stx | climate: Cfb, Dfb, Dfc | migrate: | phylum: |
| COMPLETE = 4.5 | ecozone: THp | food: bxM, xiHl, xiHs, xiCi, xiF | class: |
| MRE = 0.060 | habitat: 0iTh, 0iTf, 0iTg | gender: Dg | order: |
| SMSE = 0.013 | embryo: Tv | reprod: O | family: |
Zero-variate data
| Data | Observed | Predicted | (RE) | Unit | Description | Reference |
|---|---|---|---|---|---|---|
| tg | 23 | 22.49 | (0.02213) | d | gestation time | AnAge, Grzi1990 |
| tx | 21 | 17.56 | (0.1637) | d | time since birth at weaning | AnAge |
| tp | 56 | 57.7 | (0.0304) | d | time since weaning till female sexual maturity | GerlBart2001 |
| tpf | 77 | 76.83 | (0.002204) | d | time since weaning till female sexual maturity (field) | CorbHarr1991 |
| tpm | 49 | 46.19 | (0.05726) | d | time since weaning till male sexual maturity | CorbHarr1991 |
| am | 1533 | 1640 | (0.06948) | d | life span | ADW |
| Li | 11 | 9.099 | (0.1729) | cm | ultimate body length (head + torso) - field | kleins |
| Wwb | 2 | 1.941 | (0.02958) | g | wet weight at birth | ADW |
| Wwx | 11.6 | 14.56 | (0.2548) | g | wet weight at weaning | MonaSpea2020 |
| Ww28 | 16.3 | 20.17 | (0.2373) | g | wet weight at 28 d since birth | GerlBart2001 |
| Wwp | 25.3 | 26.28 | (0.03876) | g | wet weight at puberty female | MonaSpea2020 |
| Wwpm | 30 | 35.87 | (0.1958) | g | wet weight at puberty male | MonaSpea2020 |
| Wwi | 27.4 | 27.47 | (0.002561) | g | ultimate wet weight female | MonaSpea2020 |
| Wwim | 35.1 | 33.89 | (0.03458) | g | ultimate wet weight male | MonaSpea2020 |
| Ri | 0.1642 | 0.1658 | (0.009836) | #/d | maximum reprod rate | GerlBart2001 |
Uni- and bivariate data
| Data | Figure | Independent variable | Dependent variable | (RE) | Reference |
|---|---|---|---|---|---|
| tW1 |   | time since birth | body weight | (0.1284) | Flow1972 |
| tW2 | | time since birth | body weight | (0.1519) | Flow1972 |
| tW3_f |   | time since start | body weight | (0.009918) | MonaSpea2020 |
| tW3_m | | time since start | body weight | (0.02397) | MonaSpea2020 |
| tW4_f |   | time since start | body weight | (0.01871) | MonaSpea2020 |
| tW4_m | | time since start | body weight | (0.05546) | MonaSpea2020 |
| WJO_1 |   | wet weight | O2 consumption rate | (0.2353) | MonaSpea2015 |
| WJO_1m | | wet weight | O2 consumption rate | (0.2246) | MonaSpea2015 |
| WJO_2 |   | wet weight | O2 consumption rate | (0.2014) | MonaSpea2020 |
| WJO_2m | | wet weight | O2 consumption rate | (0.249) | MonaSpea2020 |
| LW_f |   | body length | wet weight | (0.0471) | BalcBalc2004 |
| LW_m | | body length | wet weight | (0.04757) | BalcBalc2004 |
| tW5 |  | time since first catch | body weight | (0.1096) | GibsDela1984 |
| tW_pup |  | age | body weight | (0.04036) | GerlBart2001 |
Pseudo-data at Tref = 20°C
| Data | Generalised animal | Apodemus sylvaticus | Unit | Description |
|---|---|---|---|---|
| v | 0.02 | 0.09526 | cm/d | energy conductance |
| p_M | 18 | 1583 | J/d.cm^3 | vol-spec som maint |
| k_J | 0.002 | 0.002 | 1/d | maturity maint rate coefficient |
| k | 0.3 | 0.009951 | - | maintenance ratio |
| kap | 0.8 | 0.8609 | - | allocation fraction to soma |
| kap_G | 0.8 | 0.7971 | - | growth efficiency |
| kap_R | 0.95 | 0.8 | - | reproduction efficiency |
| s_s | 0.01 | 0.02897 | - | supply stress |
Discussion
- Males and females differ in E_Hp and {p_Am}
- mod_1: added tW, LW and tJO data; other data updated; Gestation time, tg, updated from previous value 24 days (Wiki) to 23 days (AnAge). This value is consistent with the average of several literature sources of 22.3 days, or day 23 after mating.
- mod_1: Weaning time, tx, updated from 17 days (GerlBart2001) to 21 days (Geno). The value of 17 days was first day that pups started eating solid food, pups were not separated for 28 days after birth. The same study showed that solitary females spent roughly 0.55-0.60 of their time nursing until pups were 19-24 days old, when the figure dropped to 0.25-0.30. This pattern is much more consistent with the value from AnAge and several literature sources, cited in mydata_Apodemus_sylvaticus.
- mod_1: Ages at sexual maturity of females, tp, was updated from the previous value of 71 days, provided by AnAge. The primary source for this value could not be identified and so the conditions were not known. However, laboratory breeding experiments (GerlBart2001) showed no difference in time to first litter of 56-d old inexperienced females and older females that had previously reproduced. This strongly suggests that females are mature at 56-days old in lab conditions (f=1). For field conditions, Asde1946 states that ‘young breed at 80 to 90 d old’. Using 85 d as the midpoint and subtracting 8 days between sexual maturity and mating (derived from GerlBart2001) gives 77 days. Ages at sexual maturity of males, tpm, was updated from the previous value of 65 d, provided by AnAge. The primary source for this value could not be identified and so the conditions were not known. Literature data (CorbHarr1991) state that males in laboratory have fully developed testes 28 days after weaning, 21 d for weaning + 28 d = 49 days.
- mod_1: Lifespan, am, was updated from the value provided by AnAge of 6.3 years or 2300 days. This value was for a single individual, two sources provided by ADW agree closely, both stating 4 - 4.4 years. This value also agrees closely with the survival data included in the AmP entry for the related and morphologically similar
- mod_1: Mus musculus and was deemed to be more representative than the 6.3 years observed in only one instance. Ultimate wet weight (44 g) and ultimate length (11cm), Wwi and Li respectively, were previously sourced from kleins however the URL provided is no longer valid. The current Kleins page for wood mouse does not provide these values. Sex-specific values of ultimate wet weight were derived as the peak observed wet weights for each sex from detailed growth data with known feeding conditions (MonaSpea2020). Ultimate length was not measured alongside wet weight, so no data point was provided for this. However, univariate length vs wet weight data covering a range of sizes (BalcBalc2004) were used to fit the shape correction factor. The calibrated relationships yield a wet weight of around 43 g for an 11cm long individual of either sex.
- mod_1: Wet weight at birth, Wwb, was updated from its previous value of 2.5g (ADW) as multiple sources were found, giving various values. The average of 2.5 g (ADW) and 1.5g (AnAge) was in close agreement with the average of multiple literature sources of 1.83 g. The value was set to 2 g.
- mod_1: Wet weight at weaning, Wwx, was updated from the previous value of 8 g based on the 6-8 g bracket provided by the Mammal Society (Poster). The value does not specify the feeding conditions and so was replaced by the weight of weaned individuals of known age and in known conditions, at the start of growth experiments (MonaSpea2020), this value was 11.6 g. Wet weight at puberty of females and males, Wwp and Wwpm respectively, were previously sourced from ADW. The values are no longer provided on the ADW page for Apodemus sylvaticus. These were replaced with the body weights from growth data (MonaSpea2020) in the highest feeding group (f=1), at the age at puberty for each sex (56 days for females and 49 days for males). Day 30 (age = 50 days) used for males, as the closest sampling point.
Facts
- Males reach puberty earlier and are heavier at puberty. (Ref: ADW)
Acknowledgment
- The creation of this entry was support by Syngenta Crop Protection AG
Bibliography