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Mammal Research

, Volume 61, Issue 2, pp 161–169 | Cite as

Mortality, diseases and diet of European hedgehogs (Erinaceus europaeus) in an urban environment in Finland

  • Anni Rautio
  • Marja Isomursu
  • Anu Valtonen
  • Varpu Hirvelä-Koski
  • Mervi Kunnasranta
Original Paper

Abstract

Western European hedgehogs (Erinaceus europaeus) are commonly found in urban environments. To evaluate human-hedgehog interactions on the northern margin of the hedgehog range, we investigated the causes of mortality, the occurrence of diseases, parasites and bacterial infections, and the diet of hedgehogs (males n = 87, females n = 66, sex unknown n = 100) found dead in Joensuu, Finland, during the years 2004–2005. Hedgehog carcasses were obtained from a radio telemetry tracking study and a traffic mortality survey conducted by us, as well as from local people who provided us with dead hedgehogs. Of the carcasses obtained during the tracking study, 75 % died of human-related causes. The vast majority (97 %) of human-related deaths were road kills, and more than half (56 %) of natural deaths were by starvation. The average number of hedgehogs killed on the roads was 0.65 per 100 km of road transect studied. Purulent and gangrenous inflammation of the limbs was found in 11 adult males (out of 38 collected) in pathological examinations. The Salmonella enteritidis (phage type 20) infections that were found in 57 % of the individuals examined were typically latent and were mainly found in the liver. Lungworms (Crenosoma striatum) were found in 79 % of the individuals examined. Altogether, 92 % of the stomachs contained remains of human foods, especially fish and milk. The hedgehogs’ natural diet included invertebrates such as beetles (Coleoptera) and earthworms (Clitellata). Our results show that the main negative anthropogenic impact on hedgehogs is severe traffic mortality. The observed high prevalence of Salmonella calls for appropriate hygienic measures when feeding and handling hedgehogs.

Keywords

Diet Lungworms Salmonella Starvation Traffic mortality Zoonosis 

Notes

Acknowledgments

We warmly thank M. Ikonen for monitoring the survey route, dissecting the carcasses, and conducting the dietary and traffic mortality analyses. Thanks are also due to H. Kirjavainen for his invaluable help. We also thank H. Kuronen of the Finnish Food Safety Authority, Kuopio, for the serotyping of the Salmonella strains. Thanks are due to the city of Joensuu and many local people for their cooperation in collecting hedgehog carcasses. The authors are also very grateful to H. Henttonen, K. Kauhala, P. Baker, and M. Valtonen for commenting on the manuscript and to M. Hicks, H. Shiels, and K. Sotejeff-Wilson for its linguistic revision. The work was supported by the Maj and Tor Nessling Foundation, the Jenny and Antti Wihuri Foundation, the E. J. Sariola Foundation, the Ella and Georg Ehrnrooth Foundation, the North Karelia and South Savo Regional Funds of the Finnish Cultural Foundation, the Oskar Öflunds Foundation, and the Finnish Doctoral Programme in Environmental Science and Technology (EnSTe).

References

  1. Airas N, Saari S, Mikkonen T, Virtala AM, Pellikka J, Oksanen A, Isomursu M, Kilpelä SS, Lim CW, Sukura A (2010) Sylvatic Trichinella spp. infection in Finland. J Parasitol 96:67–76CrossRefPubMedGoogle Scholar
  2. Amori G, Hutterer R, Kryštufek B, Yigit N, Mitsain G, Palomo LJ (2008) Erinaceus europaeus. The IUCN Red List of Threatened Species. Version 2014.3. www.iucnredlist.org. Downloaded on 09 April 2015Google Scholar
  3. Anderson MJ, Gorley RN, Clarke KR (2008) PERMANOVA+ for PRIMER: guide to software and statistical methods. PRIMER-E, Plymouth, UKGoogle Scholar
  4. Chinery M (1994) European insect guide. Hulden L, Kaila L, Silfverberg H (ed). Otava, HelsinkiGoogle Scholar
  5. Clarke KR, Gorley RN (2006) PRIMER v6: user manual/tutorial. PRIMER-E, Plymouth, UKGoogle Scholar
  6. Dautel H, Kahl O (1999) Ticks (Acari: Ixodoidea) and their medical importance in the urban environment. In: Robinson WH, Rettich F, Rambo GW (ed.) Proceedings of the 3rd International Conference on Urban Pests, 19–22 July 1999. Prague, Czech University of Agriculture July pp. 73–82Google Scholar
  7. Dickman CR (1988) Age-related dietary change in the European hedgehog, Erinaceus europaeus. J Zool (Lond) 215:1–14CrossRefGoogle Scholar
  8. Egli R (2004) Comparison of physical condition and parasite burdens in rural, suburban and urban hedgehogs Erinaceus europaeus: implications for conservation. Diplomarbeit, University of BernGoogle Scholar
  9. Fameree L, Cotteleer C, Van den Abbeele O (1981) Epidemiological and sanitary implications of sylvatic trichinelliasis in Belgium. Collated results for 1979–81. Schweiz Arch Tierheilkd 124:401–412Google Scholar
  10. Gaglio G, Allen S, Bowden L, Bryant M, Morgan ER (2010) Parasites of European hedgehogs (Erinaceus europaeus) in Britain: epidemiological study and coprological test evaluation. Eur J Wildl Res 56:839–844CrossRefGoogle Scholar
  11. Göransson G, Karlsson J, Lindgren A (1976) Road mortality of the hedgehog Erinaceus europaeus in southern Sweden. Fauna Flora 71:1–6Google Scholar
  12. Gregory MW, Stocker L (1991) Hedgehog. In: Beynon, PH, Cooper JE (eds.) Manual of exotic pets. British Small Animal Veterinary Association, Grafos S.A., Barcelona, SpainGoogle Scholar
  13. Haigh AJ (2011) The Ecology of the European hedgehog (Erinaceus europaeus) in rural Ireland. Dissertation, University College CorkGoogle Scholar
  14. Haigh AJ (2012) Annual patterns of mammalian mortality on two Irish roads. Hystrix 23:58–66Google Scholar
  15. Haigh A, Martina K, Butler F, O’Riordan RM (2014) Non-invasive methods of separating hedgehog (Erinaceus europaeus) age classes and an investigation into the age structure of road kill. Acta Theriol 59:165–171CrossRefGoogle Scholar
  16. Handeland K, Refsum T, Johansen BS, Holstad G, Knutsen G, Solberg I, Schulze J, Kapperud G (2002) Prevalence of Salmonella typhimurium infection in Norwegian hedgehog populations associated with two human disease outbreaks. Epidemiol Infect 128:523–527CrossRefPubMedPubMedCentralGoogle Scholar
  17. Holsbeek L, Rodts J, Muyldermans S (1999) Hedgehog and other animal traffic victims in Belgium: results of a countrywide survey. Lutra 42:111–119Google Scholar
  18. Hubert P, Julliard R, Biagianti S, Poulle M-L (2011) Ecological factors driving the higher hedgehog (Erinaceus europaeus) density in an urban area compared to the adjacent rural area. Landsc Urban Plan 103:34–43CrossRefGoogle Scholar
  19. Huijser MP (2000) Life on the edge: Hedgehog traffic victims and mitigation strategies in an anthropogenic landscape. Dissertation, Wageningen UniversityGoogle Scholar
  20. Huston MA, Wolverton S (2009) The global distribution of net primary production: resolving the paradox. Ecol Monogr 79:343–377CrossRefGoogle Scholar
  21. Jones C, Norbury G (2011) Feeding selectivity of introduced hedgehogs Erinaceus europaeus in a dryland habitat, South Island, New Zealand. Acta Theriol 56:45–51CrossRefGoogle Scholar
  22. Jones C, Moss K, Sanders M (2005) Diet of hedgehogs (Erinaceus europaeus) in the upper Waitaki Basin, New Zealand: implications for conservation. New Zeal J Ecol 29:29–35Google Scholar
  23. Keymer IF, Gibson EA, Reynolds DJ (1991) Zoonoosis and other findings in hedgehogs (Erinaceus europaeus): a survey of mortality and review of the literature. Vet Rec 128:245–249CrossRefPubMedGoogle Scholar
  24. Korhonen H, Nurminen L (1987) Traffic deaths of animals on the Kuopio-Siilinjärvi highway in eastern Finland. Aquilo Ser Zool 25:9–15Google Scholar
  25. Kristiansson H (1984) Ecology of a hedgehog Erinaceus europaeus population in southern Sweden. Dissertation, University of LundGoogle Scholar
  26. Kristiansson H (1990) Population variables and causes of mortality in a hedgehog (Erinaceus europaeus) population in southern Sweden. J Zool (Lond) 220:391–404CrossRefGoogle Scholar
  27. Kristoffersson R, Soivio A, Terhivuo J (1977) The distribution of the hedgehog (Erinaceus europaeus L.) in Finland in 1975. Ann Acad Sci Fenn Ser A IV (Biol) 209:1–6Google Scholar
  28. Majeed SK, Morris PA, Cooper JE (1989) Occurrence of the lungworms Capillaria and Crenosoma spp. in British hedgehogs (Erinaceus europaeus). J Comp Pathol 100:27–36CrossRefPubMedGoogle Scholar
  29. Morris P (1977) Pre-weaning mortality in the hedgehog (Erinaceus europaeus). J Zool (Lond) 182:162–164CrossRefGoogle Scholar
  30. Morris PA (1985) The effects of supplementary feeding on movements of hedgehogs (Erinaceus europaeus). Mammal Rev 15:23–32CrossRefGoogle Scholar
  31. Morris PA, Morris MJ (1988) Distribution and abundance of hedgehogs (Erinaceus europaeus) on New Zealand roads. New Zeal J Zool 15:491–498CrossRefGoogle Scholar
  32. Nauerby B, Pedersen K, Dietz HH, Madsen M (2000) Comparison of Danish isolates of Salmonella enterica Serovar Enteritidis PT9a and PT11 from hedgehog (Erinaceus europaeus) and humans by plasmid profiling and pulsed-field gel electrophoresis. J Clin Microbiol 38:3631–3635PubMedPubMedCentralGoogle Scholar
  33. Orlowski G, Nowak L (2004) Road mortality of hedgehogs Erinaceus spp. in farmland in lower Silesia (South-Western Poland). Pol J Ecol 52:377–382Google Scholar
  34. Pfäffle M P (2010) Influence of parasites on fitness parameters of the European hedgehog (Erinaceus europaeus). Dissertation, Karlsruhe Institute of TechnologyGoogle Scholar
  35. Poulin R (2007) Evolutionary ecology of parasites. Princeton University Press, PrincetonGoogle Scholar
  36. Quinn PJ, Markey BK, Leonard FC, Hartigan P, Fanning S, FitzPatrick ES (2011) Veterinary microbiology and microbial disease. Wiley-Blackwell, SingaporeGoogle Scholar
  37. R Development Core Team (2012) R: a language and environment for statistical computing. R Foundation for Statistical Computing, Vienna, Austria, http://www.R-project.org/ Google Scholar
  38. Rautio A, Kunnasranta M, Valtonen A, Ikonen M, Hyvärinen H, Holopainen IJ, Kukkonen JVK (2010) Sex, age and tissue specific accumulation of eight metals, arsenic, and selenium in the European hedgehog (Erinaceus europaeus). Arch Environ Contam Toxicol 59:642–651CrossRefPubMedGoogle Scholar
  39. Rautio A, Valtonen A, Kunnasranta M (2013) The effects of sex and season on home range in European hedgehogs at the northern edge of the species range. Ann Zool Fenn 50:107–123CrossRefGoogle Scholar
  40. Rautio A, Valtonen A, Auttila M, Kunnasranta M (2014) Nesting patterns of European hedgehogs (Erinaceus europaeus) under northern conditions. Acta Theriol 59:173–181CrossRefGoogle Scholar
  41. Reeve NJ (1982) The home range of the hedgehog as revealed by a radio tracking study. Symp Zool Soc Lond 49:207–230Google Scholar
  42. Reeve NJ (1994) Hedgehogs. Academic, LondonGoogle Scholar
  43. Reeve NJ, Huijser MP (1999) Mortality factors affecting wild hedgehogs: a study of records from wildlife rescue centres. Lutra 42:7–24Google Scholar
  44. Riber AB (2006) Habitat use and behaviour of European hedgehog Erinaceus europaeus in a Danish rural area. Acta Theriol 51:363–371CrossRefGoogle Scholar
  45. Siitonen A, Kuronen H, Pelkonen S (2008) Kotimainen salmonellatilanne : katsaus (In finnish Salmonella in Finland : Overview). Finn Vet J 114:139–144Google Scholar
  46. Smith JMB (1965) Staphylococcus aureus strains associated with the hedgehog, Erinaceus europaeus. J Hyg Lond 63:285–291CrossRefPubMedPubMedCentralGoogle Scholar
  47. Stocker L (1987) The complete hedgehog. Chatto & Windus, LondonGoogle Scholar
  48. Taylor MA, Coop RL, Wall RL (2007) Veterinary Parasitology 3rd ed. Blackwell Publishing, Grafos S.A., SpainGoogle Scholar
  49. Timme A (1980) Krankheits- und Todenursachen beim Igel (Erinaceus europaeus L.) Sektionsfälle 1975 bis 1979. Praktische Tierarzt 619:744–748Google Scholar
  50. Tveito OE, Førland EJ, Alexandersson H, Drebs A, Jónsson T, Tuomenvirta E, Vaarby-Laursen E (2001) Nordic climate maps. DNMI-Report 06/01, KlimaGoogle Scholar
  51. Wroot AJ (1985) Foraging in the European hedgehog, Erinaceus europaeus. Mammal Rev 15:2Google Scholar
  52. Yalden DW (1976) The food of the hedgehog in England. Acta Theriol 21:401–424CrossRefGoogle Scholar

Copyright information

© Mammal Research Institute, Polish Academy of Sciences, Białowieża, Poland 2015

Authors and Affiliations

  • Anni Rautio
    • 1
  • Marja Isomursu
    • 2
  • Anu Valtonen
    • 1
  • Varpu Hirvelä-Koski
    • 2
  • Mervi Kunnasranta
    • 1
  1. 1.Department of BiologyUniversity of Eastern FinlandJoensuuFinland
  2. 2.Production Animal and Wildlife Health Research UnitFinnish Food Safety Authority EviraOuluFinland

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