Umeå University's logo

umu.sePublikasjoner
Endre søk
RefereraExporteraLink to record
Permanent link

Direct link
Referera
Referensformat
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Annet format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annet språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf
Reindeer trampling promotes vegetation changes in tundra heathlands: Results from a simulation experiment
Umeå universitet, Teknisk-naturvetenskapliga fakulteten, Institutionen för ekologi, miljö och geovetenskap. Department of Biological Sciences, University of Bergen, Bergen, Norway.ORCID-id: 0000-0002-2644-2144
Umeå universitet, Teknisk-naturvetenskapliga fakulteten, Institutionen för ekologi, miljö och geovetenskap.ORCID-id: 0000-0002-7209-948x
Umeå universitet, Teknisk-naturvetenskapliga fakulteten, Institutionen för ekologi, miljö och geovetenskap.ORCID-id: 0000-0002-6943-1218
2020 (engelsk)Inngår i: Journal of Vegetation Science, ISSN 1100-9233, E-ISSN 1654-1103, Vol. 31, nr 3, s. 476-486Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

Question: Herbivores exert strong influences on vegetation through activities such as trampling, defoliation, and fertilization. The combined effect of these activities on plant performance may cause dramatic vegetation shifts. Because herbivore pressures and the relative importance of their different activities are not equally distributed across the landscape, it is important to understand their isolated effect. One example of an herbivore‐induced vegetation shift is the reindeer‐driven transition from a subarctic tundra vegetation dominated by dwarf shrubs into a more productive, graminoid‐dominated state. Here, we asked how each of the grazing activities by reindeer separately and combined shape vegetation composition.

Location: Nordreisa, Norway.

Methods: We used a field experiment over six summers to study the separate and interacting effects of reindeer trampling, defoliation, addition of faeces and removal of moss on tundra heath vegetation, and to identify which of these factors were most important in driving the plant community towards a graminoid‐dominated state.

Results: The combination of all treatments resulted in the strongest changes in vegetation, but trampling was the single most important factor altering the vegetation composition by reducing the abundance of both evergreen and deciduous dwarf shrubs. In contrast to what was expected, none of our treatments, separate or combined, resulted in an increased abundance of graminoids in 5 years, although such rapid vegetation changes have been observed in the field in similar environmental conditions.

Conclusions: Trampling is the key process by which reindeer influence the abundance of functional groups, but only many processes combined result in strong changes in community composition. Moreover, additional factors not included in this experiment, such as urine, may be important in causing a state shift to a graminoid‐dominated community.

sted, utgiver, år, opplag, sider
John Wiley & Sons, 2020. Vol. 31, nr 3, s. 476-486
Emneord [en]
defoliation, fertilization, grazing simulation, herbivory, Rangifer tarandus, shrubification, trampling, vegetation shifts
HSV kategori
Identifikatorer
URN: urn:nbn:se:umu:diva-170806DOI: 10.1111/jvs.12871ISI: 000528892400010Scopus ID: 2-s2.0-85082970425OAI: oai:DiVA.org:umu-170806DiVA, id: diva2:1432411
Tilgjengelig fra: 2020-05-27 Laget: 2020-05-27 Sist oppdatert: 2023-03-24bibliografisk kontrollert

Open Access i DiVA

fulltext(1231 kB)226 nedlastinger
Filinformasjon
Fil FULLTEXT01.pdfFilstørrelse 1231 kBChecksum SHA-512
baaf88107613cc98aa87ffd53cf67fc73bc7ed1538c77251c060a3ba5dae57e9abc1bea3347771dabb0c02159c2fd19a4fddbdf4b8fe73777109e7a92ac3c883
Type fulltextMimetype application/pdf

Andre lenker

Forlagets fulltekstScopus

Person

Egelkraut, DagmarBarthelemy, HélèneOlofsson, Johan

Søk i DiVA

Av forfatter/redaktør
Egelkraut, DagmarBarthelemy, HélèneOlofsson, Johan
Av organisasjonen
I samme tidsskrift
Journal of Vegetation Science

Søk utenfor DiVA

GoogleGoogle Scholar
Totalt: 226 nedlastinger
Antall nedlastinger er summen av alle nedlastinger av alle fulltekster. Det kan for eksempel være tidligere versjoner som er ikke lenger tilgjengelige

doi
urn-nbn

Altmetric

doi
urn-nbn
Totalt: 405 treff
RefereraExporteraLink to record
Permanent link

Direct link
Referera
Referensformat
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Annet format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annet språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf