Ändra sökning
RefereraExporteraLänk till posten
Permanent länk

Direktlänk
Referera
Referensformat
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • 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
The Transition From Stochastic to Deterministic Bacterial Community Assembly During Permafrost Thaw Succession
Visa övriga samt affilieringar
Ansvarig organisation
2020 (Engelska)Ingår i: Frontiers in Microbiology, E-ISSN 1664-302X, Vol. 11, artikel-id 596589Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

The Northern high latitudes are warming twice as fast as the global average, and permafrost has become vulnerable to thaw. Changes to the environment during thaw leads to shifts in microbial communities and their associated functions, such as greenhouse gas emissions. Understanding the ecological processes that structure the identity and abundance (i.e., assembly) of pre- and post-thaw communities may improve predictions of the functional outcomes of permafrost thaw. We characterized microbial community assembly during permafrost thaw using in situ observations and a laboratory incubation of soils from the Storflaket Mire in Abisko, Sweden, where permafrost thaw has occurred over the past decade. In situ observations indicated that bacterial community assembly was driven by randomness (i.e., stochastic processes) immediately after thaw with drift and dispersal limitation being the dominant processes. As post-thaw succession progressed, environmentally driven (i.e., deterministic) processes became increasingly important in structuring microbial communities where homogenizing selection was the only process structuring upper active layer soils. Furthermore, laboratory-induced thaw reflected assembly dynamics immediately after thaw indicated by an increase in drift, but did not capture the long-term effects of permafrost thaw on microbial community dynamics. Our results did not reflect a link between assembly dynamics and carbon emissions, likely because respiration is the product of many processes in microbial communities. Identification of dominant microbial community assembly processes has the potential to improve our understanding of the ecological impact of permafrost thaw and the permafrost-climate feedback.

Ort, förlag, år, upplaga, sidor
Frontiers Media S.A. , 2020. Vol. 11, artikel-id 596589
Nyckelord [en]
permafrost thaw, microbial community, community assembly, phylogenetic null modeling, ecological processes
Nationell ämneskategori
Klimatforskning Mikrobiologi Ekologi
Identifikatorer
URN: urn:nbn:se:polar:diva-8830DOI: 10.3389/fmicb.2020.596589ISI: 000593529800001PubMedID: 33281795OAI: oai:DiVA.org:polar-8830DiVA, id: diva2:1625715
Tillgänglig från: 2022-01-09 Skapad: 2022-01-09 Senast uppdaterad: 2024-01-17Bibliografiskt granskad

Open Access i DiVA

Fulltext saknas i DiVA

Övriga länkar

Förlagets fulltextPubMedFulltext

Sök vidare i DiVA

Av författaren/redaktören
Dorrepaal, Ellen
I samma tidskrift
Frontiers in Microbiology
KlimatforskningMikrobiologiEkologi

Sök vidare utanför DiVA

GoogleGoogle Scholar

doi
pubmed
urn-nbn

Altmetricpoäng

doi
pubmed
urn-nbn
Totalt: 228 träffar
RefereraExporteraLänk till posten
Permanent länk

Direktlänk
Referera
Referensformat
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • 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