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  • Evans, Alina L.Department of Forestry and Wildlife Management, Hedmark University College, Evenstad, Norway; Section of Arctic Veterinary Medicine, Norwegian School of Veterinary Science, Tromsø, Norway (författare)

Capture, Anesthesia, and Disturbance of Free-Ranging Brown Bears (Ursus arctos) during Hibernation

  • Artikel/kapitelEngelska2012

Förlag, utgivningsår, omfång ...

  • 2012-07-16
  • Public Library of Science,2012
  • printrdacarrier

Nummerbeteckningar

  • LIBRIS-ID:oai:DiVA.org:oru-58666
  • https://urn.kb.se/resolve?urn=urn:nbn:se:oru:diva-58666URI
  • https://doi.org/10.1371/journal.pone.0040520DOI
  • https://res.slu.se/id/publ/41153URI

Kompletterande språkuppgifter

  • Språk:engelska
  • Sammanfattning på:engelska

Ingår i deldatabas

Klassifikation

  • Ämneskategori:ref swepub-contenttype
  • Ämneskategori:art swepub-publicationtype

Anmärkningar

  • Funding Agencies:Norwegian Directorate for Nature Management  Swedish Environmental Protection Agency  Research Council of Norway  WWF Sweden  Norwegian-American Fulbright Commission  American Scandinavian Foundation  Morris Animal Foundation 
  • We conducted thirteen immobilizations of previously collared hibernating two-to four-year-old brown bears (Ursus arctos) weighing 21-66 kg in central Sweden in winter 2010 and 2011 for comparative physiology research. Here we report, for the first time, an effective protocol for the capture and anesthesia of free-ranging brown bears during hibernation and an assessment of the disturbance the captures caused. Bears were darted in anthill, soil, or uprooted tree dens on eleven occasions, but two bears in rock dens fled and were darted outside the den. We used medetomidine at 0.02-0.06 mg/kg and zolazepam-tiletamine at 0.9-2.8 mg/kg for anesthesia. In addition, ketamine at 1.5 mg/kg was hand-injected intramuscularly in four bears and in six it was included in the dart at 1.1-3.0 mg/kg. Once anesthetized, bears were removed from the dens. In nine bears, arterial blood samples were analyzed immediately with a portable blood gas analyzer. We corrected hypoxemia in seven bears (PaO2 57-74 mmHg) with supplemental oxygen. We placed the bears back into the dens and antagonized the effect of medetomidine with atipamezole. Capturing bears in the den significantly increased the risk of den abandonment. One of twelve collared bears that were captured remained at the original den until spring, and eleven, left their dens (mean +/- standard deviation) 3.2 +/- 3.6 (range 0.5-10.5) days after capture. They used 1.9 +/- 0.9 intermediate resting sites, during 6.2 +/- 7.8 days before entering a new permanent den. The eleven new permanent dens were located 730 +/- 589 m from the original dens. We documented that it was feasible and safe to capture hibernating brown bears, although they behaved differently than black bears. When doing so, researchers should use 25% of the doses used for helicopter darting during the active period and should consider increased energetic costs associated with den abandonment.

Ämnesord och genrebeteckningar

Biuppslag (personer, institutioner, konferenser, titlar ...)

  • Sahlén, VeronicaDepartment of Ecology and Natural Resource Management, Norwegian University of Life Sciences, Ås, Norway (författare)
  • Stoen, Ole-GunnarDepartment of Ecology and Natural Resource Management, Norwegian University of Life Sciences, Ås, Norway; Department of Wildlife, Fish and Environmental Studies, Swedish University of Agricultural Sciences, Umeå, Sweden(Swepub:slu)48326 (författare)
  • Fahlman, ÅsaSwedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Institutionen för kliniska vetenskaper (KV),Department of Clinical Sciences(Swepub:slu)49093 (författare)
  • Brunberg, SvenDepartment of Ecology and Natural Resource Management, Norwegian University of Life Sciences, Ås, Norway (författare)
  • Madslien, KnutSection for Wildlife Health, National Veterinary Institute, Oslo, Norway (författare)
  • Fröbert, Ole,1964-Region Örebro län,Örebro universitet, Institutionen för medicinska vetenskaper,Department of Cardiology, Örebro University Hospital, Örebro, Sweden(Swepub:oru)oft (författare)
  • Swenson, Jon E.Department of Ecology and Natural Resource Management, Norwegian University of Life Sciences, Ås, Norway; Norwegian Institute for Nature Research, Trondheim, Norway (författare)
  • Arnemo, JonSwedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Institutionen för vilt, fisk och miljö,Department of Wildlife, Fish and Environmental Studies,Hedmark University College(Swepub:slu)49057 (författare)
  • Department of Forestry and Wildlife Management, Hedmark University College, Evenstad, Norway; Section of Arctic Veterinary Medicine, Norwegian School of Veterinary Science, Tromsø, NorwayDepartment of Ecology and Natural Resource Management, Norwegian University of Life Sciences, Ås, Norway (creator_code:org_t)
  • Sveriges lantbruksuniversitet

Sammanhörande titlar

  • Ingår i:PLOS ONE: Public Library of Science7:71932-6203

Internetlänk

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  • PLOS ONE (Sök värdpublikationen i LIBRIS)

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