10 Result(s)
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Article
Monique M. P. D. Heijmans
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Article
Open AccessExtremely wet summer events enhance permafrost thaw for multiple years in Siberian tundra
Permafrost thaw can accelerate climate warming by releasing carbon from previously frozen soil in the form of greenhouse gases. Rainfall extremes have been proposed to increase permafrost thaw, but the magnitu...
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Publisher Correction to: Background invertebrate herbivory on dwarf birch (Betula glandulosa-nana complex) increases with temperature and precipitation across the tundra biome
The above mentioned article was originally scheduled for publication in the special issue on Ecology of Tundra Arthropods with guest editors Toke T. Høye . Lauren E. Culler. Erroneously, the article was publis...
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Open AccessThaw pond development and initial vegetation succession in experimental plots at a Siberian lowland tundra site
Permafrost degradation has the potential to change the Arctic tundra landscape. We observed rapid local thawing of ice-rich permafrost resulting in thaw pond formation, which was triggered by removal of the sh...
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Open AccessSeasonal changes and vertical distribution of root standing biomass of graminoids and shrubs at a Siberian tundra site
Shrub expansion is common in the tundra biome and has been linked to climate warming. However, the underlying mechanisms are still not fully understood. This study aimed to investigate the seasonal and vertica...
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Open AccessThe role of summer precipitation and summer temperature in establishment and growth of dwarf shrub Betula nana in northeast Siberian tundra
It is widely believed that deciduous tundra-shrub dominance is increasing in the pan-Arctic region, mainly due to rising temperature. We sampled dwarf birch (Betula nana L.) at a northeastern Siberian tundra site...
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Open AccessField Simulation of Global Change: Transplanting Northern Bog Mesocosms Southward
A large proportion of northern peatlands consists of Sphagnum-dominated ombrotrophic bogs. In these bogs, peat mosses (Sphagnum) and vascular plants occur in an apparent stable equilibrium, thereby sustaining the...
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Open AccessResponse of Sphagnum species mixtures to increased temperature and nitrogen availability
To predict the role of ombrotrophic bogs as carbon sinks in the future, it is crucial to understand how Sphagnum vegetation in bogs will respond to global change. We performed a greenhouse experiment to study the...
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Open AccessDwarf shrubs are stronger competitors than graminoid species at high nutrient supply in peat bogs
Climate warming is likely to increase nutrient mineralization rates in bog ecosystems which may change the plant species composition. We examined the competitive relationships between two graminoid species, Eriop...
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Open AccessSwift recovery of Sphagnum nutrient concentrations after excess supply
Although numerous studies have addressed the effects of increased N deposition on nutrient-poor environments such as raised bogs, few studies have dealt with to what extent, and on what time-scale, reductions ...
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Open AccessThe effect of temperature on growth and competition between Sphagnum species
Peat bogs play a large role in the global sequestration of C, and are often dominated by different Sphagnum species. Therefore, it is crucial to understand how Sphagnum vegetation in peat bogs will respond to glo...
