Use of abandoned structures by Przewalski’s wild horses and other wildlife in the Chernobyl Exclusion Zone

  • Peter E. SchlichtingEmail author
  • Valery Dombrovski
  • James C. Beasley
Short Communication


Przewalski’s wild horses (Equus ferus przewalski) are an endangered species and current conservation efforts aim to maintain genetic diversity and reintroduce wild populations. From 1998 to 2004, 36 Przewalski’s horses were introduced in the Chernobyl Exclusion Zone (CEZ) with no subsequent direct management, and current population size and genetic diversity are unknown. We used remote cameras positioned at the entrance of abandoned structures within the CEZ to elucidate visitation of these structures by Przewalski’s horses and other large mammals to assess the use of this method for monitoring the horse population within the CEZ. We estimated frequency of structure use in winter (Nov 2016–Feb 2017) and summer (Mar 2018–Oct 2018) periods and estimated basic group characteristics such as group type (all male vs. mixed sex), group size, and number of foals. Przewalski’s horses were detected 35 times at 9 of 10 monitored structures in winter and 149 times at all 8 monitored structures in summer. Eight other mammalian species were documented using abandoned structures. Mixed sex groups of horses contained 5.30 ± 0.25 adults and 1.00 ± 0.12 foals (mean ± S.E.). All-male groups contained 1.59 ± 0.15 individuals. Our data suggest Przewalski’s horses routinely use abandoned structures in the CEZ with visitation patterns tending to be nocturnal in winter and crepuscular in summer. Congregation of horses in these structures could have implications for future monitoring of the population by providing detailed information on demographics, population size, and genetic diversity which would benefit management plans for this population and provide a baseline for future work.


Camera traps Chernobyl Exclusion Zone Population monitoring Przewalski’s wild horse 



We thank the Polesie State Radioecological Reserve staff and C. Love for field assistance and discussion, as well as the Ministry of Education and Research for their support. This material is based upon work supported by the Department of Energy Office of Environmental Management under Award Number DE-EM0004391 to the University of Georgia Research Foundation.


  1. Baker RJ, Chesser RK (2000) The Chernobyl nuclear disaster and subsequent creation of a wildlife preserve. Environ Toxicol Chem 19:1231–1232CrossRefGoogle Scholar
  2. Bouman DT, Bouman JG (1994) The history of Przewalski’s horse) In: Boyd L, Houpt DA (eds) Przewalski’s horse: the history and biology of an endangered species. State University of New York Press, New York, pp 5–38Google Scholar
  3. Boyd L, Bandi N (2002) Reintroduction of takhi, Equus ferus przewalskii, to Hustai National Park, Mongolia: time budget and synchrony of activity pre-and post-release. Appl Anim Behav Sci 78:87–102CrossRefGoogle Scholar
  4. Deryabina TG (2015) Przewalski’s horses (Equus ferus przewalskii POLJ., 1881) in Chernobyl Exclusion Zone in Belarus. News Biosphere Reserve “Askania Nova” 17:54–59.
  5. Deryabina TG, Kuchmel SV, Nagorskaya LL, Hinton TG, Beasley JC, Lerebours A, Smith JT (2015) Long term census data reveal thriving mammal populations at Chernobyl. Curr Biol 25:R824–R826CrossRefGoogle Scholar
  6. King SRB, Boyd L, Zimmermann W, Kendall BE (2015) Equus ferus. (errata version published in 2016). The IUCN Red List of Threatened Species 2015: e.T41763A97204950. Accessed 08 Jan 2017Google Scholar
  7. King SR, Schoenecker KA, Fike JA, Oyler-McCance SJ (2018) Long-term persistence of horse fecal DNA in the environment makes equids particularly good candidates for noninvasive sampling. Ecol Evol 8:4053–4064CrossRefGoogle Scholar
  8. Klich D, Slivinska K, Yasynetska N (2017) The use of abandoned buildings by Przewalski’s horses in the Chornobyl Exclusion Zone, Ukraine. J Vet Behav 22:13–16CrossRefGoogle Scholar
  9. Liu G, Shafer ABA, Zimmermann W, Hu D, Wang W, Chu H, Cao J, Zhao C (2014) Evaluating the reintroduction project of Przewalski’s horse in China using genetic and pedigree data. Biol Conserv 171:288–298CrossRefGoogle Scholar
  10. Lukacs PM, Burnham KP (2005) Review of capture–recapture methods applicable to noninvasive genetic sampling. Mol Ecol 14:3909–3919CrossRefGoogle Scholar
  11. Meredith M, Ridout M (2014) Overview of the overlap package. R Project, pp 1–9Google Scholar
  12. R Development Core Team (2018) R: A language and environment for statistical computing. R Foundation for Statistical Computing, Vienna, Austria.
  13. Ridout MS, Linkie M (2009) Estimating overlap of daily activity patterns from camera trap data. J Agric Biol Environ Stat 14:322–337CrossRefGoogle Scholar
  14. Ryder OA (1993) Przewalski’s horse: prospects for reintroduction into the wild. Conserv Biol 7:13–15CrossRefGoogle Scholar
  15. Sarrazin F, Barbault R (1996) Reintroduction: challenges and lessons for basic ecology. Trends Ecol Evol 11:474–478CrossRefGoogle Scholar
  16. Schlichting PE, Love CN, Webster SC, Beasley JC (2019) Efficiency and composition of vertebrate scavengers at the land-water interface in the Chernobyl Exclusion Zone. Food Webs 18:e00107CrossRefGoogle Scholar
  17. Slotta-Bachmayr L, Boegel R, Kaczensky P, Stauffer C, Walzer C (2004) Use of population viability analysis to identify management priorities and success in reintroducing Przewalski’s horses to southwestern Mongolia. J Wildl Manag 68:790–798CrossRefGoogle Scholar
  18. Souris AC, Kaczensky P, Julliard R, Walzer C (2007) Time budget-, behavioral synchrony-and body score development of a newly released Przewalski’s horse group Equus ferus przewalskii, in the Great Gobi B strictly protected area in SW Mongolia. Appl Anim Behav Sci 107:307–321CrossRefGoogle Scholar
  19. Van Dierendonck MC, Wallis de Vries MF (1996) Ungulate reintroductions: experiences with the takhi or Przewalski horse (Equus ferus przewalskii) in Mongolia. Conserv Biol 10:728–740CrossRefGoogle Scholar
  20. Webster SC, Byrne ME, Lance SL, Love CN, Hinton TG, Shamovich D, Beasley JC (2016) Where the wild things are: influence of radiation on the distribution of four mammalian species within the Chernobyl Exclusion Zone. Front Ecol Environ 14:185–190CrossRefGoogle Scholar
  21. Xia C, Cao J, Zhang H, Gao X, Yang W, Blank D (2014) Reintroduction of Przewalski’s horse (Equus ferus przewalskii) in Xinjiang, China: the status and experience. Biol Conserv 177:142–147CrossRefGoogle Scholar
  22. Zharkikh TL, Yasynetska NI (2008) Demographic parameters of a Przewalski horse (Equus przewalskii Polj., 1881) population in the exclusive zone of the Chernobyl power plant. Bull Mosc Soc Nat Biol Ser 113:3–9Google Scholar

Copyright information

© Mammal Research Institute, Polish Academy of Sciences, Bia?owie?a, Poland 2019

Authors and Affiliations

  1. 1.Savannah River Ecology Laboratory, Warnell School of Forestry and Natural ResourcesUniversity of GeorgiaAikenUSA
  2. 2.Laboratory of Molecular ZoologyNational Academy of SciencesMinskBelarus

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