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The terrestrial and freshwater invertebrate biodiversity of the archipelagoes of the Barents Sea; Svalbard, Franz Josef Land and Novaya Zemlya
Arctic terrestrial ecosystems are generally considered to be species poor, fragile and often isolated. Nonetheless, their intricate complexity, especially that of the invertebrate component, isExpand
Guano deposition and nutrient enrichment in the vicinity of planktivorous and piscivorous seabird colonies in Spitsbergen
TLDR
Climate-induced changes in populations of planktivorous and piscivorous seabirds are expected in the study region and may have substantial consequential effects on Arctic terrestrial ecosystems. Expand
An assessment of seabird influence on Arctic coastal benthic communities
TLDR
The results indicate that seabirds in the Arctic may fertilize coastal benthic communities through pelagic–benthic coupling, while having no direct impact on bottom primary production. Expand
The influence of a seabird colony on abundance and species composition of water bears (Tardigrada) in Hornsund (Spitsbergen, Arctic)
TLDR
Ornithogenic enrichment of soil and locally facilitated development of mosses over lichens might be important factors responsible for the increase in invertebrate abundance in polar regions. Expand
Following the flow of ornithogenic nutrients through the Arctic marine coastal food webs
TLDR
Results suggest that, in the conditions of periodic, short-term pulses of ornithogenic nutrient inputs to the local marine environment, which typify the short High Arctic summer, planktonic organisms are the initial organisms to incorporate nutrients before transfer to the benthic food web via pelagic–benthic coupling. Expand
Isotopic evidence for oligotrophication of terrestrial ecosystems
TLDR
Foliar nitrogen (N) concentrations and isotope ratios obtained from >43,000 samples acquired over 37 years suggest global declines in N supply relative to plant demand, consistent with elevated atmospheric carbon dioxide. Expand
Importance of Marine-Derived Nutrients Supplied by Planktivorous Seabirds to High Arctic Tundra Plant Communities
TLDR
A strong positive correlation between δ15N isotopic values and total N content in the soil is found, confirming the fundamental role of marine-derived matter to the generally nutrient-poor Arctic tundra ecosystem. Expand
Variability of polar scurvygrass Cochlearia groenlandica individual traits along a seabird influenced gradient across Spitsbergen tundra
TLDR
This study studied variability of polar scurvygrass Cochlearia groenlandica individual biomass and leaf width along a seabird influenced gradient determining environmental conditions for vegetation in south-west Spitsbergen to support the hypothesis that seabirds have fundamental importance for vegetation growth in poor Arctic environment. Expand
Is ornithogenic fertilization important for collembolan communities in Arctic terrestrial ecosystems?
TLDR
This study focused on springtail community composition in the vicinity of seabird nesting areas in different parts of Svalbard on their comparison with adjacent areas not impacted by seabirds. Expand
Differential Responses of Arctic Vegetation to Nutrient Enrichment by Plankton- and Fish-Eating Colonial Seabirds in Spitsbergen
TLDR
The results show that the guano input from seabirds which have different diets can affect High Arctic vegetation in specific and more complex ways than previously realized. Expand
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