Behaviour of brown bears killing wild ungulates in the Cantabrian Mountains, Southwestern Europe


Although brown bears (Ursus arctos) are known to be major predators of ungulates in North America and Northern Europe, there is little documentation regarding bear predation on wild ungulates in Southern Europe. We describe search, detection, killing and prey consumption behaviour by brown bears during seven attacks on <1-month roe deer, red deer and chamois fawns in spring in the Cantabrian Mountains, north-western Spain. As soon as the bears detected a fawn by their smell or their mother's presence, they switched from routine foraging on plants and insects to an intensive search for the fawns, mainly using smell to comb a 0.5–1 ha area for 15–45 min. They killed the fawns either while the latter were resting or after a brief chase. The bears usually took their prey to dense vegetation, consuming it immediately. In four cases, 5-month-old cubs accompanying the female did not participate in the hunt. We also document the apparently non-predatory killing of a 40-kg wild boar by a female bear with cubs surprised by a sudden encounter. They did not eat the boar after the attack.

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  1. Barber-Meyer SM, Mech LD, White PJ (2008) Elk calf survival and mortality following wolf restoration to Yellowstone National Park. Wildl Monogr 169:1–30

  2. Blanco JC (1998) Mamíferos de España, Vol II Cetáceos, Artiodáctilos, Roedores y Lagomorfos. Ed GeoPlaneta, Barcelona

  3. Braña F, Naves J, Palomero G (1993) Hábitos alimenticios y configuración de la dieta del oso pardo en la Cordillera Cantábrica. In: Naves J, Palomero G (eds) El oso pardo (Ursus arctos) en España. ICONA, Madrid, pp 81–104

  4. Clevenger AP, Purroy FJ, Pelton MR (1992a) Food habits of brown bears (Ursus arctos) in the Cantabrian Mountains, Spain. J Mammal 73:415–421

  5. Clevenger AP, Purroy FJ, Pelton MR (1992b) Brown bear habitat use in the Cantabrian Mountains, Spain. Mammalia 53:206–213

  6. Fico R, Locati M, Lovari S (1984) A case of brown bear predation on Abruzzo chamois. Säugetierkdl Mitt 31:185–187

  7. French SP, French MG (1990) Predatory behavior of grizzly bears feeding on elk calves in Yellowstone National Park, 1986–88. Int Conf Bear Res and Manage 8:335–341

  8. Herrero S (1985) Bear attacks. Their causes and avoidance. Lyons and Burford, New York

  9. MacArthur RH, Pianka ER (1966) On optimal use of a patchy environment. Am Nat 100:603–609

  10. MacNulty DR, Mech LD, Smith DW (2007) A proposed ethogram of large-carnivore predatory behavior, exemplified by the wolf. J Mammal 88:595–605

  11. Naves J, Fernández-Gil A, Rodríguez C, Delibes M (2006) Brown bear food habits at the border of its range: a long-term study. J Mammal 87:899–908

  12. Nores C, Fernández-Gil A, Corral N (2000) Estimación de la población de jabalí (Sus scrofa) por recuento de grupos familiares. Nat Cantabr 1:53–59

  13. Palomero G, Ballesteros F, Blanco JC, García-Serrano A, Herrero J, Nores C (2007a) Osas. El comportamiento de las osas con crías en la Cordillera Cantábrica, Fundación Oso Pardo and Fundación Biodiversidad, Madrid

  14. Palomero G, Ballesteros F, Blanco JC, Nores C, Herrero J, García-Serrano A (2007b) Trends in number and distribution of brown bear females with cubs-of-the-year in the Cantabrian Mountains, Spain. Ursus 18:145–157

  15. Palomero G, Blanco JC, Ballesteros F, García-Serrano A, Herrero J, Nores C (2009) Veinte años tras las osas con crías de la cordillera Cantábrica. Quercus 281:14–21

  16. Pérez-Barbería FJ, Palacios B, González-Quirós P, Cano M, Nores C, Díaz A (2009) La evolución de la población del rebeco en la Cordillera Cantábrica. In: Pérez-Barbería FJ, Palacios B (eds) El rebeco cantábrico Rupicapra pyrenaica parva. Conservación y gestión de sus poblaciones. Ministerio de Medio Ambiente y Medio Rural y Marino, Madrid, pp 106–125

  17. Swenson JE, Dahle B, Busk H, Opseth O, Johansen T, Soderberg A, Wallin K, Cederlund G (2007) Predation on moose calves by European brown bears. J Wildl Manage 71:1993–1997

  18. Zager P, Beecham J (2006) The role of American black bears and brown bears as predators on ungulates in North America. Ursus 17:95–108

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We thank the rangers of the Fundación Oso Pardo (Brown Bear Foundation) for their enthusiastic efforts. The environmental agencies of Galicia, Asturias, Castilla y León and Cantabria, the Spanish Ministry of the Environment, the European Union Life Projects and the Fundación Biodiversidad provided funds for the long-term bear monitoring. T. Corominas (Biodiversity and Landscape Directorate of Asturias) provided unpublished figures on roe deer densities, Dr. Y. Cortés and two anonymous referees reviewed the manuscript and L. Ashcroft improved the English.

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Correspondence to Juan Carlos Blanco.

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Communicated by C. Gortázar

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Blanco, J.C., Ballesteros, F., García-Serrano, A. et al. Behaviour of brown bears killing wild ungulates in the Cantabrian Mountains, Southwestern Europe. Eur J Wildl Res 57, 669–673 (2011) doi:10.1007/s10344-010-0464-z

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  • Ursus arctos
  • Brown bear
  • Predation
  • Wild ungulates
  • Cantabrian Mountains
  • Spain