Resistance and change in a High Arctic ecosystem, NW Greenland: Differential sensitivity of ecosystem metrics to 15 years of experimental warming and wetting

2021 ◽  
Author(s):  
R. Gus Jespersen ◽  
A. Joshua Leffler ◽  
Maria Väisänen ◽  
Jeffrey M. Welker
Keyword(s):  
High Arctic ◽  
Differential Sensitivity ◽  
Experimental Warming ◽  
Arctic Ecosystem

Soil-plant N processes in a High Arctic ecosystem, NW Greenland are altered by long-term experimental warming and higher rainfall

2013 ◽  
pp. n/a-n/a ◽  
Author(s):  
Sean M. Schaeffer ◽  
Elizabeth Sharp ◽  
Joshua P. Schimel ◽  
Jeffery M. Welker
Keyword(s):  
High Arctic ◽  
Experimental Warming ◽  
Arctic Ecosystem

Controls on the greenhouse gas exchange of a high-arctic ecosystem

1999 ◽  
Vol 99 (1) ◽  
pp. 19-26
Author(s):  
Thomas Friborg ◽  
Birger Ulf Hansen ◽  
Claus Nordstroem ◽  
Henrik Soegaard
Keyword(s):  
Gas Exchange ◽  
Greenhouse Gas ◽  
High Arctic ◽  
Arctic Ecosystem

Taxonomic and ecologic observations of zoosporic fungi in soils of a high-arctic ecosystem

1976 ◽  
Vol 54 (5-6) ◽  
pp. 533-538 ◽  
Author(s):  
Tom Booth ◽  
Paul Barrett
Keyword(s):  
Species Diversity ◽  
Species Composition ◽  
Soil Acidity ◽  
High Arctic ◽  
Arctic Ecosystem ◽  
Devon Island ◽  
Zoosporic Fungi

Phylctochytrium arcticum Barr and Rhizophlyctis harderi Uebelmesser are reported as additional taxa in soils of Truelove Lowland (Devon Island, N.W.T.) and Nowakowskiella spp., Olpidium pendulum Zopf, Pythium irregularae Buisman. Pythium spp., Phlyctochytrium arcticum, and Rhizophydium sphaerotheca Zopf are readily detectable as active organisms in Lowland microhabitats. Species diversity is greatest in mesic and warm soils and species composition of water-logged soils is different than dry soils. Soil acidity effects on distribution are discussed and autecological considerations of Nowakowskiella elegans and R. sphaerotheca with respect to pH, percentage N, C, and P, milliequivalents Ca2+ and Mg2+, moisture, and temperature are presented.

scholarly journals Sixty-year legacy of human impacts on a high Arctic ecosystem

2016 ◽  
Vol 53 (3) ◽  
pp. 876-884 ◽  
Author(s):  
Michael S. Becker ◽  
Wayne H. Pollard
Keyword(s):  
Human Impacts ◽  
High Arctic ◽  
Arctic Ecosystem

Short-term impacts of active layer detachments on carbon exchange in a High Arctic ecosystem, Cape Bounty, Nunavut, Canada

Polar Biology ◽  
2014 ◽  
Vol 37 (10) ◽  
pp. 1459-1468 ◽  
Author(s):  
Alison Beamish ◽  
Allison Neil ◽  
Ioan Wagner ◽  
Neal A. Scott
Keyword(s):  
Active Layer ◽  
High Arctic ◽  
Carbon Exchange ◽  
Short Term ◽  
Arctic Ecosystem

CO2 exchange in three Canadian High Arctic ecosystems: response to long-term experimental warming

2004 ◽  
Vol 10 (12) ◽  
pp. 1981-1995 ◽  
Author(s):  
Jeffrey M. Welker ◽  
Jace T. Fahnestock ◽  
Greg H. R. Henry ◽  
Kevin W. O'Dea ◽  
Rodney A. Chimner
Keyword(s):  
High Arctic ◽  
Co2 Exchange ◽  
Experimental Warming ◽  
Arctic Ecosystems ◽  
Canadian High Arctic

Effects of Seabird Vectors on the Fate, Partitioning, and Signatures of Contaminants in a High Arctic Ecosystem

2011 ◽  
Vol 45 (23) ◽  
pp. 10053-10060 ◽  
Author(s):  
Karen L. Foster ◽  
Lynda E. Kimpe ◽  
Samantha K. Brimble ◽  
Huijun Liu ◽  
Mark L. Mallory ◽  
...  
Keyword(s):  
High Arctic ◽  
Arctic Ecosystem
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