Abstract：
:Eusocial subterranean rodents of the Bathyergidae family have enormous longevity. The long lifespan of these species is associated with negligible senescence, that is, an absence of the signs of age-related deterioration in physical condition. The question arises as to whether these features are unique to eusocial Bathyergids or typical of other social subterranean rodents as well. In the present study, we analysed data from observations of a social subterranean Microtinae rodent, the northern mole vole (Ellobius talpinus Pall.), which, like mole-rats, has reproductive skew. Among the individuals captured in the wild and maintained in captivity, females that reproduced lived significantly longer than non-breeding females. We did not find any changes in muscle strength with age in any of the demographic groups studied. Faecal glucocorticoid concentrations before death were significantly higher in non-breeding females than in breeding females and males. Increased adrenocortical activity may be one mechanism responsible for the decreased lifespan of non-reproducing individuals of social subterranean rodents. We conclude that the patterns of aging, although different in some respects, are generally common for social subterranean rodents of different taxonomic groups.
journal_name
Biogerontologyjournal_title
Biogerontologyauthors
Novikov E,Kondratyuk E,Petrovski D,Titova T,Zadubrovskaya I,Zadubrovskiy P,Moshkin Mdoi
10.1007/s10522-015-9592-xsubject
Has Abstractpub_date
2015-12-01 00:00:00pages
723-32issue
6eissn
1389-5729issn
1573-6768pii
10.1007/s10522-015-9592-xjournal_volume
16pub_type
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