The Legacy Effects of Winter Climate on Microbial Functioning After Snowmelt in a Subarctic Tundra

Warming-induced increases in microbial CO2 release in northern tundra may positively feedback to climate change. However, shifts in microbial extracellular enzyme activities (EEAs) may alter the impacts of warming over the longer term. We investigated the in situ effects of 3years of winter warming...

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Bibliographic Details
Published in:Microbial Ecology
Main Authors: Väisänen, Maria, Gavazov, Konstantin, Krab, Eveline J., Dorrepaal, Ellen
Format: Article in Journal/Newspaper
Language:English
Published: 2018
Subjects:
Extracellular enzymes
Microbial respiration
Phenol oxidase
PLFA
Snow manipulation
β-Glucosidase
/dk/atira/pure/person/fieldofscience2010/1/18/1
name=Ecology
evolutionary biology
Subarctic
Tundra
Online Access:https://research.ulapland.fi/fi/publications/3d0d162c-c8f5-4985-96eb-460d3272e3ae
https://doi.org/10.1007/s00248-018-1213-1
https://lacris.ulapland.fi/ws/files/6690016/V_is_nen_et_al._2018.pdf
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Summary:Warming-induced increases in microbial CO2 release in northern tundra may positively feedback to climate change. However, shifts in microbial extracellular enzyme activities (EEAs) may alter the impacts of warming over the longer term. We investigated the in situ effects of 3years of winter warming in combination with the in vitro effects of a rapid warming (6days) on microbial CO2 release and EEAs in a subarctic tundra heath after snowmelt in spring. Winter warming did not change microbial CO2 release at ambient (10 degrees C) or at rapidly increased temperatures, i.e., a warm spell (18 degrees C) but induced changes (P

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