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Community assembly along proglacial chronosequences in the high Arctic: vegetation and soil development in north‐west Svalbard
Summary 1 Community assembly is described for two contrasting high Arctic chronosequences representing glacial regression of up to 2000 years on Svalbard. The chronosequences included a nutrient-poorExpand
Warmer and wetter winters: characteristics and implications of an extreme weather event in the High Arctic
One predicted consequence of global warming is an increased frequency of extreme weather events, such as heat waves, droughts, or heavy rainfalls. In parts of the Arctic, extreme warm spells andExpand
Primary community assembly on land – the missing stages: why are the heterotrophic organisms always there first?
1 It is proposed that as a general rule primary community assembly by autotrophs is preceded by a previously unrecognized heterotrophic phase that may be instrumental in facilitating theExpand
What a wonderful web they weave: spiders, nutrient capture and early ecosystem development in the high Arctic – some counter‐intuitive ideas on community assembly
Large allochthonous inputs of insects potentially provide significant quantities of nitrogen and phosphorus to the developing ecosystem from the earliest stages of succession, even before a conspicuous cyanobacterial crust has formed. Expand
Plant recruitment in the High Arctic: Seed bank and seedling emergence on Svalbard
Composition and density of the soil seed banks, together with seedling emergence in the field, were examined on Svalbard, suggesting that climate constrains recruitment from seeds in the High Arctic. Expand
Characterisation and limitations of the rapid cold-hardening response in the housefly Musca domestica (Diptera: Muscidae)
The rapid cold-hardening response in the housefly Musca domestica is a function of the duration of exposure at, or close to, the acclimating temperature of 0°C, rather than the abrupt change in temperature which accompanies the direct transfer of pupae from the culture to the acc adapting temperature. Expand
A review of the terrestrial and freshwater invertebrate fauna of the High Arctic archipelago of Svalbard.
The terrestrial and freshwater invertebrates of Svalbard (Spitsbergen) are reviewed and species diversity is poor by comparison with other arctic regions. Expand
Invertebrate community assembly along proglacial chronosequences in the high Arctic
Comparisons between the proglacial area of Midtre Lovenbre, a land-terminating glacier, and three Loven Islands, released from beneath a tidewater glacier, showed similarities in community composition and species abundance with respect to successional stage, suggesting determinism and direction in community development. Expand
Effects of experimental temperature elevation on high-arctic soil microarthropod populations
The experiment demonstrated that year to year variation in climate, interacting with physical differences between sites, produced an equal or greater effect on microarthropod numbers at any one site than the 8–10% increase in “heat availability” (day degrees above zero) resulting from the summer tent treatment. Expand
Aerial dispersal of invertebrates over a high-Arctic glacier foreland: Midtre Lovénbreen, Svalbard
Aerial dispersal of the invertebrate community was studied at seven sites along a chronosequence across the proglacial region of a retreating high-Arctic glacier, Midtre Lovénbreen, Svalbard, Norway, finding that invertebrates rapidly reached newly exposed land surfaces. Expand