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Citations since 2017
8 Research Items
Methanotrophs oxidize most of the methane (CH 4) produced in natural and anthropogenic ecosystems. Often living close to soil surfaces, these microorganisms must frequently adjust to temperature change. While many environmental studies have addressed temperature effects on CH 4 oxidation and methanotrophic communities, there is little knowledge abo...
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Rising temperatures in the Arctic affect soil microorganisms, herbivores, and peatland vegetation, thus directly and indirectly influencing microbial CH4 production. It is not currently known how methanotrophs in Arctic peat respond to combined changes in temperature, CH4 concentration, and vegetation. We studied methanotroph responses to temperatu...
Methane oxidizing bacteria (methanotrophs) within the genus Methylobacter constitute the biological filter for methane (CH4) in many Arctic soils. Multiple Methylobacter strains have been identified in these environments but we seldom know the ecological significance of the different strains. High Arctic peatlands in Svalbard are heavily influenced...
Glacier forefield soils can provide a substantial sink for atmospheric CH4, facilitated by aerobic methane-oxidizing bacteria (MOB). However, MOB activity, abundance, and community structure may be affected by soil age, MOB location in different forefield landforms, and temporal fluctuations in soil physical parameters. We assessed the spatial and...
Mature upland soils are currently considered the sole terrestrial sink for atmospheric methane (CH4). But little is known about CH4 dynamics in young, developing soil ecosystems such as glacier forefields formed by progressive glacial retreat. Glacier forefields are situated on diverse bedrock types, exhibit a continuum of soil age (chronosequence)...