, Volume 74, Issue 5, pp 487–492 | Cite as

Age determination and individual growth rate of Microtus oeconomus mehelyi based on live-trapping

  • Veronika Hulejová SládkovičováEmail author
  • Dávid Žiak
  • Peter Miklós
  • Ondrej Kameniar
  • Ľudovít Kocian
Original Article


The evaluation of the age structure of a population is an important part of many mammalian population studies and usually requires comparison with an age interval standard. To be able to assess the age structure of the protected and rare root vole subspecies Microtus oeconomus mehelyi Éhik, 1928 we analysed data on body length measured in its natural habitat during a 4-year capture-recapture study and created a probability table to help classify individuals into cohorts. Each of the spring, summer and autumn cohorts and the group of overwintered individuals was significantly distinguishable from others and their growth rates and sizes varied from each other. Before winter, these different growth trajectories have led to more similar values in body length that could be a consequence of a trade-off between overwintering strategies depending on body size.


Growth rate Cohorts Microtus oeconomus Age structure Age determination Overwintering 



We thank Peter Degma, Andrej Farkaš, Romana Gregoričková, Katarína Hollá, Matúš Kúdela, Barbara Mangová, Mária Melišková, Peter Mikulíček.


Research was supported by LIFE 08 NAT/SK/000239.

Compliance with ethical standards

Conflict of interest

The authors declare no conflict of interest.

Supplementary material

11756_2018_188_MOESM1_ESM.doc (340 kb)
ESM 1 (DOC 340 kb)


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Copyright information

© Institute of Zoology, Slovak Academy of Sciences 2019

Authors and Affiliations

  1. 1.Department of Zoology, Faculty of Natural SciencesComenius University in BratislavaBratislava 4Slovakia
  2. 2.Department of Forest Ecology, Faculty of ForestryUniversity of Life Sciences in PraguePraha 6 – SuchdolCzech Republic

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