European Journal of Wildlife Research

, Volume 58, Issue 2, pp 473–482 | Cite as

Method of releasing and number of animals are determinants for the success of European ground squirrel (Spermophilus citellus) reintroductions

  • Jan Matějů
  • Štěpánka Říčanová
  • Simona Poláková
  • Michal Ambros
  • Borys Kala
  • Kristýna Matějů
  • Lukáš Kratochvíl
Original Paper

Abstract

Reintroductions are considered an important part of the action plans and recovery strategies of endangered ground squirrel species, but so far little is known about their proper methodology. We collected primary data on 12 European ground squirrel reintroduction projects carried out at 14 localities in the Czech Republic, Slovakia and Poland since 1989. We focused on seven methodological aspects of each reintroduction: selection of release site, method of releasing, date of releasing, origin of released animals, total number of released animals, mean number of released animals per season and reintroduction site management. The method of releasing was found to be the key factor in determining the settlement of animals at the target locality. Only soft releasing methods, i.e. the use of enclosures and/or artificial burrows, ensure that animals remain at the target locality. The other factors significantly determining reintroduction success are the number of released animals per season (at least 23 animals required) and the total number of released animals (a minimum of 60 individuals). Long-term management of the site and regular monitoring of the newly established population are necessary. Our recommendations, based on experience with the successes and failures of previous reintroductions, could largely improve the efficiency of future reintroductions of highly endangered species.

Keywords

Translocation Endangered species Rodentia 

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Copyright information

© Springer-Verlag 2011

Authors and Affiliations

  • Jan Matějů
    • 1
    • 2
  • Štěpánka Říčanová
    • 3
    • 4
  • Simona Poláková
    • 3
    • 5
  • Michal Ambros
    • 6
  • Borys Kala
    • 7
  • Kristýna Matějů
    • 8
  • Lukáš Kratochvíl
    • 9
  1. 1.Department of Zoology, Faculty of ScienceCharles UniversityPrahaCzech Republic
  2. 2.Agency for Nature Conservation and Landscape Protection of the CRKarlovy VaryCzech Republic
  3. 3.Department of Zoology, Faculty of ScienceUniversity of South BohemiaČeské BudějoviceCzech Republic
  4. 4.Department of Population BiologyInstitute of Vertebrate Biology Academy of Science of the Czech RepublicBrnoCzech Republic
  5. 5.DAPHNE CR—Institute of applied ecologyČeské BudějoviceCzech Republic
  6. 6.State Nature Conservation of Slovakia, Regional Centre of Nature Conservation in NitraAdministration of Ponitrie Protected Landscape AreaNitraSlovakia
  7. 7.Polish Society for Nature Conservation “Salamandra”PoznańPoland
  8. 8.Karlovy Vary MuseumKarlovy VaryCzech Republic
  9. 9.Department of Ecology, Faculty of ScienceCharles UniversityPrahaCzech Republic

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