Can bryophyte groups increase functional resolution in tundra ecosystems?

Endozoochory by slugs can increase bryophyte establishment and species richness

Herbivory can aff ect plant community composition and diversity by removing biomass and reducing light competition. Herbivory may particularly benefi t low growing species such as bryophytes, which are frequently limited by light competition. Gastropods are important herbivores of seed plants and cryptogams, furthermore, they can disperse propagules such as seeds and spores via endozoochory. Ho...

Changes in Alaskan Tundra Ecosystems

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Upscaling CH4 Fluxes Using High-Resolution Imagery in Arctic Tundra Ecosystems

Arctic tundra ecosystems are a major source of methane (CH4), the variability of which is affected by local environmental and climatic factors, such as water table depth, microtopography, and the spatial heterogeneity of the vegetation communities present. There is a disconnect between the measurement scales for CH4 fluxes, which can be measured with chambers at one-meter resolution and eddy co...

Simulating nonsorted circle development in arctic tundra ecosystems

[1] Nonsorted circles, ubiquitous to the Arctic Tundra region, are patterned ground features with circular semibarren areas surrounded by vegetation. These circles are formed and persist as an ecosystem due to complex soil-water-energy-ice-plant relationships and dynamics in the Arctic. In this paper, we present the first model that captures the dynamics of the physical and biological component...

Introduction to special section on Biocomplexity of Arctic Tundra Ecosystems