du.sePublikationer
Ändra sökning
RefereraExporteraLänk till posten
Permanent länk

Direktlänk
Referera
Referensformat
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • chicago-author-date
  • chicago-note-bibliography
  • Annat format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annat språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf
Reindeer habitat selection under the risk of brown bear predation during calving season
Högskolan Dalarna, Akademin Industri och samhälle, Statistik.ORCID-id: 0000-0002-1057-5401
Visa övriga samt affilieringar
2016 (Engelska)Ingår i: Ecosphere, ISSN 2150-8925, E-ISSN 2150-8925, Vol. 7, nr 11, artikel-id e01583Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

The depredation of semi-domesticated reindeer by large carnivores reflects an important human-wildlife conflict in Fennoscandia. Recent studies have revealed that brown bears (Ursus arctos) may kill substantial numbers of reindeer calves (Rangifer tarandus tarandus) in forest areas in Sweden. Several authors have suggested that predation risk is an important driver of habitat selection in wild Rangifer populations where predation is a limiting factor, but little is known about these mechanisms in semi-domesticated populations. We examined the habitat selection of female reindeer in relation to spatial and temporal variations in brown bear predation risk on the reindeer calving grounds and evaluated the simultaneous responses of brown bears and reindeer to landscape characteristics. We used GPS data from 110 reindeer years (97 individuals) and 29 brown bear years (19 individuals), from two reindeer herding districts in the forest area of northern Sweden. Our results did not indicate that reindeer alter their behavior in response to spatiotemporal variation in brown bear predation risk, on the scale of the calving range. Instead, we suggest that spatiotemporal behavioral adjustments by brown bears were the main driver of prey-predator interactions in our study system. Contrasting responses by brown bears and reindeer to clear-cuts and young forest indicate that forestry can influence species interactions and possibly yield negative consequences for the reindeer herd. Even if clear-cuts may be beneficial in terms of calf survival, logging activity will eventually cause greater abundance of young regenerating forest, reducing available reindeer habitats and increasing habitat preferred by brown bears. Domestication may have made semi-domesticated reindeer in Fennoscandia less adapted to cope with predators. Areal restrictions, limiting the opportunity for dispersion and escape, possibly make the calves more susceptible to predation. Also, a generally higher population density in semi-domesticated herds compared to wild populations can make dispersion a less efficient strategy and the reindeer calves easier prey. Overall, the lack of ability of the reindeer females to reduce brown bear encounter risk on the scale of the calving range is probably an important reason for the high brown bear predation rates on reindeer calves documented in our study areas. 

Ort, förlag, år, upplaga, sidor
2016. Vol. 7, nr 11, artikel-id e01583
Nyckelord [en]
brown bears, habitat selection, predation risk, predator–prey interactions, Rangifer, resource selection functions
Nationell ämneskategori
Ekologi
Forskningsämne
Komplexa system - mikrodataanalys, Allmänt Mikrodataaanalys - metod
Identifikatorer
URN: urn:nbn:se:du-23712DOI: 10.1002/ecs2.1583ISI: 000392207600030OAI: oai:DiVA.org:du-23712DiVA, id: diva2:1059387
Tillgänglig från: 2016-12-22 Skapad: 2016-12-22 Senast uppdaterad: 2017-11-29Bibliografiskt granskad

Open Access i DiVA

fulltext(1601 kB)97 nedladdningar
Filinformation
Filnamn FULLTEXT03.pdfFilstorlek 1601 kBChecksumma SHA-512
b6788f07a8384c8178ecfe4d7058548735c76c245be5c094bd01f7e574ee4bbc469bcc3ab316974dc53ba2f8840ad6061cfd820461a442eb26ccd2777d1aba5a
Typ fulltextMimetyp application/pdf

Övriga länkar

Förlagets fulltexthttp://dx.doi.org/10.1002/ecs2.1583

Personposter BETA

Rönnegård, Lars

Sök vidare i DiVA

Av författaren/redaktören
Rönnegård, Lars
Av organisationen
Statistik
I samma tidskrift
Ecosphere
Ekologi

Sök vidare utanför DiVA

GoogleGoogle Scholar
Totalt: 97 nedladdningar
Antalet nedladdningar är summan av nedladdningar för alla fulltexter. Det kan inkludera t.ex tidigare versioner som nu inte längre är tillgängliga.

doi
urn-nbn

Altmetricpoäng

doi
urn-nbn
Totalt: 194 träffar
RefereraExporteraLänk till posten
Permanent länk

Direktlänk
Referera
Referensformat
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • chicago-author-date
  • chicago-note-bibliography
  • Annat format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annat språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf