Effects of experimental temperature elevation on high-arctic soil microarthropod populations

  title={Effects of experimental temperature elevation on high-arctic soil microarthropod populations},
  author={Stephen James Coulson and Ian Hodkinson and Chris B. Wooley and Nigel R. Webb and William C. Block and Michael Roger Worland and Jeffrey S. Bale and A. T. Strathdee},
  journal={Polar Biology},
An experiment was conducted to measure the effects of summer warming on the total population densities of soil-dwelling microarthropods in the high Arctic and to compare these results with those from natural between-year and between-site variations. Small polythene tents were used to elevate summer temperatures over 3 years on polar semi-desert and tundra heath in West Spitsbergen, Svalbard, Norway. Soil cores were taken at regular intervals from tented and untented (control) plots and heat… 
Aphid–willow interactions in a high Arctic ecosystem: responses to raised temperature and goose disturbance
While goose presence had little effect on aphid density or host plant phenology in this system, the OTC effects provide interesting insights into the possibility of phenological synchrony disruption.
limate change effects on soil microarthropod abundance and community tructure
Long-term ecosystem responses to climate change strongly depend on how the soil subsystem and its inhabitants respond to these perturbations. Using open-top chambers, we studied the response of soil
Distribution of microarthropods across altitude and aspect in the sub-Antarctic: climate change implications for an isolated oceanic island
It is clear that a warmer and drier climate will dramatically change the microarthropod community structure within A. selago on Marion Island, and at the island-scale abiotic variables, rather than biotic factors, appeared to be the more important determinants of community structure.
Impact of warming and timing of snow melt on soil microarthropod assemblages associated with Dryas‐dominated plant communities on Svalbard
The results suggest that the composition and structure of Arctic invertebrate communities associated with Dryas will change significantly under global warming.
Winter Climate Change Influences on Soil Faunal Distribution and Abundance: Implications for Decomposition in the Northern Forest
Abstract Winter is typically considered a dormant period in northern forests, but important ecological processes continue during this season in these ecosystems. At the Hubbard Brook Experimental
Simulated climate change affecting microorganisms, nematode density and biodiversity in subarctic soils
Arctic terrestrial ecosystems are strongly dominated by temperature, and global warming is expected to have a particularly strong impact in high latitudes. The Arctic will therefore be an important


Effects of temperature elevation on a field population of Acyrthosiphon svalbardicum (Hemiptera: Aphididae) on Spitsbergen
The life-cycle of A. svalbardicum is well suited to exploit higher summer temperatures, and the annual success of local populations are sensitive to small changes in temperature, suggests that the aphid is living at the limits of its thermal range at Ny Ålesund based on its summer thermal budget requirements.
Biology of Hypogastrura tullbergi (Collembola) at a high arctic site
The life cycle, reproductive biology and growth rates of Hypogastrura tullbergi (Schaffer), one of the most abundant and widespread Collembola on Devon Island, N.W.T., were investigated and it is suggested that in the field, growth rates are limited by food rather than directly by low temperatures.
The developmental processes of seed production were shown to be highly sensitive, even within one growing season, to specific environmental perturbations which differed between sites.
Responses of terrestrial plants and invertebrates to environmental change at high latitudes
Many invertebrates show flexibility in their life cycles and are likely to respond to changes in climate as they have in the past. However, changes in temperature and photoperiod may disturb the life
Extreme adaptive life‐cycle in a high arctic aphid, Acyrthosiphon svalbardicum
Abstract. 1 The year‐round biology of a high arctic aphid is described for the first time. 2 The life‐cycle is shown to be genetically determined, and thus markedly different to temperate species
Abundance of Tundra Arthropods in Spitsbergen
There were considerable similarities in the abundance of major groups of arthropods between the Spitsbergen tundra and high alpine grounds in southern Norway, although in the former area some groups were absent.
Arctic Insects as Indicators of Environmental Change
The great diversity of terrestrial arthropods in the Arctic suggests that these organisms are especially useful to monitor environmental change there, where warming as a result of climatic change is
Arctic ecosystems in a changing climate : an ecophysiological perspective
F.S. Chapin III, R.L. Jefferies, J.F. Reynolds, G.R. Shaver, and J. Svoboda, Arctic Plant Physiological Ecology: A Challenge for the Future. The Arctic System: B. Maxwell, Arctic Climate: Potential
Feeding studies on Onychiurus arcticus (Tullberg) (Collembola: Onychiuridae) on West Spitsbergen
There was wide variation in the food items consumed by individual animals, reflecting the wide choice available in the environment, most animals fed predominantly on living and dead bryophytes, detritus and to a lesser extent algal cells.