• norsk
    • English
  • norsk 
    • norsk
    • English
  • Logg inn
Vis innførsel 
  •   Hjem
  • Artikler, rapporter, filmer / Articles, reports, movies
  • Artikkel - fagfellevurdert vitenskapelig / Articles - peer-reviewed
  • Vis innførsel
  •   Hjem
  • Artikler, rapporter, filmer / Articles, reports, movies
  • Artikkel - fagfellevurdert vitenskapelig / Articles - peer-reviewed
  • Vis innførsel
JavaScript is disabled for your browser. Some features of this site may not work without it.

Survival of female capercaillie Tetrao urogallus in northern Sweden

Åhlen, Per-Arne; Willebrand, Tomas; Sjöberg, Kjell; Hörnell-Willebrand, Maria
Journal article, Peer reviewed
Thumbnail
Åpne
ahlen et al.pdf (139.4Kb)
Permanent lenke
http://hdl.handle.net/11250/134636
Utgivelsesdato
2013
Metadata
Vis full innførsel
Samlinger
  • Artikkel - fagfellevurdert vitenskapelig / Articles - peer-reviewed [1618]
Originalversjon
Åhlen, P.-A., Willebrand, T., Sjöberg, K., & Willebrand, M. H. (2013). Survival of female capercaillie Tetrao urogallus in northern Sweden. [Vitenskapelig artikkel]. Wildlife Biology, 19, 368-373. doi: http://dx.doi.org10.2981/13-025   10.2981/13-025
Sammendrag
We studied survival and cause-specific mortality of radio-marked capercaillie Tetrao urogallus females relative to habitat

type in northern Sweden during 2000-2004. Our high-mountain area (1,600 km2) consisted of the alpine transition zone from Norway spruce Picea abies-dominated forest,mountain birch Betula pubescens and alpine heath. Our low-mountain areas consisted of two forest areas (300 and 160 km2) dominated by Scots pine Pinus sylvestris and characterised by more intensive forestry than the first-mentioned area. Predation was the most common cause of mortality in both the highmountain (70%) and low-mountain (90%) areas. We attributed 10% of mortality in both areas to hunting. Collisions with cars and power lines were only documented in the high-mountain area. A Cox-proportional regression model stratified by year suggested that hazard was lower for yearlings and birds using low-mountain areas, but these estimates were associated with large uncertainties. Pooling all individuals showed an average annual survival probability of 0.68 (0.62-0.75; 95%CI), with no tendency for hazard to vary among seasons. Because survival of females was comparable to those reported in other studies and the harvest mortality was low, we suggest that the capercaillie population in the Swedish high-mountain region does not need any changes in the present management strategy.
Utgiver
Nordic Council for Wildlife Research
Tidsskrift
Wildlife Biology

Kontakt oss | Gi tilbakemelding

Personvernerklæring
DSpace software copyright © 2002-2019  DuraSpace

Levert av  Unit
 

 

Bla i

Hele arkivetDelarkiv og samlingerUtgivelsesdatoForfattereTitlerEmneordDokumenttyperTidsskrifterDenne samlingenUtgivelsesdatoForfattereTitlerEmneordDokumenttyperTidsskrifter

Min side

Logg inn

Statistikk

Besøksstatistikk

Kontakt oss | Gi tilbakemelding

Personvernerklæring
DSpace software copyright © 2002-2019  DuraSpace

Levert av  Unit