AnAge entry for Antechinus stuartii

Classification (HAGRID: 02886)

Taxonomy
Kingdom: Animalia
    Phylum: Chordata
        Class: Mammalia (Taxon entry)
            Order: Dasyuromorphia
                Family: Dasyuridae
                    Genus: Antechinus
Species
Antechinus stuartii
Common name
Brown antechinus

Lifespan, ageing, and relevant traits

Maximum longevity
5.4 years (captivity)
Source
ref. 671
Sample size
Small
Data quality
Acceptable
Observations

These are very intriguing animals from a gerontological perspective. This marsupial mouse shows Big Bang reproduction: males in the wild die during mating season of sexual stress marked by weight loss, regression of the sexual organs, and increased susceptibility to various diseases. Castration extends longevity [0023]. Isolated captive males can live for more than one year, even though they exhibit the same features of wild animals during mating season, such as weight loss, and they become sterile afterwards [0469]. One captive specimen lived for 5.4 years [0671].

Life history traits (averages)

Female sexual maturity
285 days
Male sexual maturity
285 days
Gestation
30 days
Weaning
106 days
Litter size
7 (viviparous)
Litters per year
1
Inter-litter interval
365 days
Weight at birth
0.016 g
Weight at weaning
16 g
Adult weight
27.5 g
Postnatal growth rate
Maximum longevity residual
66%

Metabolism

Typical body temperature
308ºK or 35.1ºC or 95.2ºF
Basal metabolic rate
0.1890 W
Body mass
25.0 g
Metabolic rate per body mass
0.007560 W/g

References

External Resources

Integrated Taxonomic Information System
ITIS 552600
Animal Diversity Web
ADW account
Encyclopaedia of Life
Search EOL
NCBI Taxonomy
Taxonomy ID 9283
Entrez
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Ageing Literature
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Images
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Internet
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