Evidence of non-hibernation in Cantabrian brown bears

• Autorzy: Nores C. , Ballesteros F. , Blanco J.C. , Garcia-Serrano A. , Herrero J. , Palomero G.
• Języki publikacji: EN

Abstrakty

EN

Evidence of non-hibernation in brown bears Ursus arctos Linnaeus, 1758 on the Iberian Peninsula has existed since the Middle Ages. We systematically monitored brown bears in the Cantabrian Mountains (Northern Spain) by recording tracks and sightings from 1998 to 2007 to document hibernation behaviour. Our results indicate that females with yearlings and solitary yearlings were more active in winter than bears over two years old. Intensive snow tracking and direct observations of five family groups indicated that they travelled, fed and defecated in winter, which are activities not compatible with the physiological state of hibernation. Also, based on tracking data, the maximum period between two consecutive locations of active family groups in winter was less than that needed by bears to emerge from a state of hibernation (6 days). We conclude that the family groups which we monitored in winter did not hibernate.

Słowa kluczowe

EN

evidence; non-hibernation bear; brown bear; Ursus arctos; hibernation; female; Cantabrian Mountains; Spain

• Wydawca: -
• Czasopismo: Acta Theriologica
• Rocznik: 2010
• Tom: 55
• Numer: 3
• Opis fizyczny: p.203-209,ref.

Twórcy

autor

Nores C.

• University of Oviedo, Campus de Mieres, E-33600 Mieres, Spain

autor

Ballesteros F.

autor

Blanco J.C.

autor

Garcia-Serrano A.

autor

Herrero J.

autor

Palomero G.

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