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The Survival and Welfare of Hedgehogs (Erinaceus Europaeus) After Release Back Into the Wild

Published online by Cambridge University Press:  11 January 2023

N J Reeve
N J Reeve*
Affiliation:
School of Life Sciences, Roehampton Institute London, West Hill, London SW15 3SN, UK
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Abstract

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The fate of rescued hedgehogs (Erinaceus europaeus) released back to the wild has now been the subject of several follow-up studies. Although subject to various hazards, released hedgehogs have clearly shown essential ‘life-skills’. However, all previous studies have involved releases into hedgehog-rich areas and the observed long-range (> 500m) dispersal movements shown by some subjects, of up to 5km, may be a consequence of local intraspecific competition. This study has reduced a number of potentially confounding subject variables and provides follow-up data on 12 age-matched female hedgehogs with similar histories. A main group (n = 10) was released into a rural woodland area (Surrey, UK) of low natural hedgehog density, and radio-tracked for up to 108 days. A pilot release of two animals in an urban area with an established hedgehog population also took place (tracked for 109 and 131 days respectively). Most of the main group dispersed (up to 3km) from the release site; the two animals in the urban site did not. These data, taken with those from previous studies, suggest that dispersal is not specifically the result of intraspecific competition. Overall survival at week 8 was 42per cent (5 hedgehogs) plus two lost animals. This is comparable with previous studies. However, survival fell to 25 per cent (3 animals) plus two lost animals by week 15. Of seven recorded deaths, only one was the result of a failure to thrive and all other mortalities were accidental: four road deaths, one drowned in a pond and one predation. The study concludes that the hazards of the human environment were the principal threat to the welfare and survival of released hedgehogs in the area.

Keywords

animal welfareErinaceus europaeushedgehogrehabilitationsurvival
Type
Research Article
Information
Animal Welfare , Volume 7 , Issue 2 , May 1998 , pp. 189 - 202
Copyright
© 1998 Universities Federation for Animal Welfare

References

Doncaster, P 1992 Testing the role of intraguild predation in regulating hedgehog populations. Proceedings of the Royal Society of London Series B 249: 113–117Google ScholarPubMed
Hocck, H N 1987 Hedgehog mortality during hibernation. Journal of the Zoological Society of London 213: 755–757CrossRefGoogle Scholar
Kristiansson, H 1990 Population variables and causes of mortality in a hedgehog population (Erinaceus europaeus) in southern Sweden. Journal of the Zoological Society of London 220: 391–404CrossRefGoogle Scholar
Majeed, S K, Morris, P A and Cooper, J E 1989 Occurrence of the lungworms Capillaria and Crenosoma spp. in British hedgehogs (Erinaceus europaeus). Journal of Comparative Pathology 100: 27–36CrossRefGoogle ScholarPubMed
Morris, P A 1984 An estimate of the minimum body weight necessary for hedgehogs (Erinaceus europaeus) to survive hibernation. Journal of Zoology 203: 291–294Google Scholar
Morris, P A 1991 Family Erinaccidae. In: Corbet G B & Harris S (eds) The Handbook of British Mammals, 3rd edition pp 37-43. Blackwell Scientific Publications: Oxford, UKGoogle Scholar
Morris, P A, Meakin, K and Sharafi, S 1993 The behaviour and survival of rehabilitated hedgehogs (Erinaceus europaeus). Animal Welfare 2: 53–66Google Scholar
Morris, P A, Munn, S and Craig-Wood, S 1992 The effects of releasing captive hedgehogs (Erinaceus europaeus) into the wild. Field Studies 8: 89–99Google Scholar
Morris, P A and Sharafi, S 1996 Released, rehabilitated hedgehogs: a follow-up study in Jersey, April-May 1995. Unpublished report, Royal Holloway College, University of LondonGoogle Scholar
Morris, P A and Warwick, H 1994 A study of rehabilitated hedgehogs after release into the wild. Animal Welfare 3: 163–177CrossRefGoogle Scholar
Reeve, N J 1982 The home range of the hedgehog as revealed by a radio tracking study. In: Cheeseman C L and Mitson R B (eds) Telemetric Studies of Vertebrates (Symposium of The Zoological Society of London 49) pp 207-230. Academic Press: London, UKGoogle Scholar
Reeve, N J 1994 Hedgehogs. T & A D Poyser: London, UKGoogle Scholar
Reeve, N J and Morris, P A 1985 Construction and use of summer nests by the. hedgehog (Erinaceus europaeus). Mammalia 49(2): 187–194CrossRefGoogle Scholar
Sainsbury, A W, Cunningham, A A, Morris, P A, Kirkwood, J K, Macgregor, S K 1996 Health and welfare of rehabilitated juvenile hedgehogs (Erinaceus europaeus) before and after release into the wild. Veterinary Record 138: 61–65CrossRefGoogle ScholarPubMed
Saupe, E and Poduschka, W 1985 Igel. In: Gabrisch K and Zwart P (eds) Krankheiten der Heimtiere pp 75-96. Schltitersche: Hanover, GermanyGoogle Scholar
Stocker, L 1987 The Complete Hedgehog. Chatto and Windus: London, UKGoogle Scholar
Sykes, L and Durrant, J 1995 The Natural Hedgehog. Gaia Books Ltd: London, UKGoogle Scholar