CO 2 ‐fluxes in different plant communities of a high‐Arctic tundra watershed (Western Spitsbergen)

1999 ◽  
Vol 10 (3) ◽  
pp. 413-420 ◽  
Author(s):  
Christoph Wüthrich ◽  
Ingo Möller ◽  
Dietbert Thannheiser
Keyword(s):  
Plant Communities ◽  
Arctic Tundra ◽  
High Arctic

scholarly journals Importance of Marine-Derived Nutrients Supplied by Planktivorous Seabirds to High Arctic Tundra Plant Communities

PLoS ONE ◽  
2016 ◽  
Vol 11 (5) ◽  
pp. e0154950 ◽  
Author(s):  
Adrian Zwolicki ◽  
Katarzyna Zmudczyńska-Skarbek ◽  
Pierre Richard ◽  
Lech Stempniewicz
Keyword(s):  
Plant Communities ◽  
Arctic Tundra ◽  
High Arctic ◽  
Marine Derived Nutrients

Mosses and lichens of Shokalsky Island (Kara Sea, Yamal-Nenets Autonomous Area)

2020 ◽  
Vol 54 (2) ◽  
pp. 497-513 ◽  
Author(s):  
L. N. Beldiman ◽  
I. N. Urbanavichene ◽  
V. E. Fedosov ◽  
E. Yu. Kuzmina
Keyword(s):  
Plant Communities ◽  
Species Distribution ◽  
Arctic Tundra ◽  
Kara Sea ◽  
Lichenicolous Fungi ◽  
South West ◽  
West Part ◽  
First Time ◽  
Nenets Autonomous ◽  
Made In

We studied in detail a moss-lichen component of Shokalsky Island vegetation for the first time and identified 79 species of mosses and 54 species and 2 subspecies of lichens and lichenicolous fungi. All species of mosses and 23 species and 2 subspecies of lichens and lichenicolous fungi are recorded for the first time for the island. The study is based on collections made in South West part of the island, in arctic tundra. We also explored the participation of the mosses and lichens in the main types of plant communities and the species distribution in 10 ecotopes. The paper describes the noteworthy findings (Abrothallus parmeliarum, Aongstroemia longipes, Arthonia peltigerea, Caloplaca caesiorufella, Catillaria stereocaulorum, Ceratodon heterophyllus, Lecanora leptacinella, Sphagnum concinnum, S. olafii) and features of bryo- and lichenoflora of Shokalsky Island.

Long-term experimentally deepened snow decreases growing-season respiration in a low- and high-arctic tundra ecosystem

2016 ◽  
Vol 121 (5) ◽  
pp. 1236-1248 ◽  
Author(s):  
Philipp R. Semenchuk ◽  
Casper T. Christiansen ◽  
Paul Grogan ◽  
Bo Elberling ◽  
Elisabeth J. Cooper
Keyword(s):  
Growing Season ◽  
Arctic Tundra ◽  
High Arctic ◽  
Tundra Ecosystem

scholarly journals Plant community composition and species richness in the High Arctic tundra: From the present to the future

2017 ◽  
Vol 7 (23) ◽  
pp. 10233-10242 ◽  
Author(s):  
Jacob Nabe-Nielsen ◽  
Signe Normand ◽  
Francis K. C. Hui ◽  
Laerke Stewart ◽  
Christian Bay ◽  
...  
Keyword(s):  
Species Richness ◽  
Community Composition ◽  
Plant Community ◽  
Arctic Tundra ◽  
High Arctic ◽  
Plant Community Composition ◽  
The Future

scholarly journals Increased Turnover but Little Change in the Carbon Balance of High-Arctic Tundra Exposed to Whole Growing Season Warming

2004 ◽  
Vol 36 (3) ◽  
pp. 298-307 ◽  
Author(s):  
Fleur L. Marchand ◽  
Ivan Nijs ◽  
Hans J. de Boeck ◽  
Fred Kockelbergh ◽  
Sofie Mertens ◽  
...  
Keyword(s):  
Carbon Balance ◽  
Growing Season ◽  
Arctic Tundra ◽  
High Arctic

scholarly journals Two years with extreme and little snowfall: effects on energy partitioning and surface energy exchange in a high-Arctic tundra ecosystem

2016 ◽  
Vol 10 (4) ◽  
pp. 1395-1413 ◽  
Author(s):  
Christian Stiegler ◽  
Magnus Lund ◽  
Torben Røjle Christensen ◽  
Mikhail Mastepanov ◽  
Anders Lindroth
Keyword(s):  
Energy Balance ◽  
Surface Energy ◽  
Snow Cover ◽  
Energy Exchange ◽  
Surface Energy Balance ◽  
Arctic Tundra ◽  
High Arctic ◽  
Snow Accumulation ◽  
Heat Fluxes ◽  
Tundra Ecosystem

Abstract. Snow cover is one of the key factors controlling Arctic ecosystem functioning and productivity. In this study we assess the impact of strong variability in snow accumulation during 2 subsequent years (2013–2014) on the land–atmosphere interactions and surface energy exchange in two high-Arctic tundra ecosystems (wet fen and dry heath) in Zackenberg, Northeast Greenland. We observed that record-low snow cover during the winter 2012/2013 resulted in a strong response of the heath ecosystem towards low evaporative capacity and substantial surface heat loss by sensible heat fluxes (H) during the subsequent snowmelt period and growing season. Above-average snow accumulation during the winter 2013/2014 promoted summertime ground heat fluxes (G) and latent heat fluxes (LE) at the cost of H. At the fen ecosystem a more muted response of LE, H and G was observed in response to the variability in snow accumulation. Overall, the differences in flux partitioning and in the length of the snowmelt periods and growing seasons during the 2 years had a strong impact on the total accumulation of the surface energy balance components. We suggest that in a changing climate with higher temperature and more precipitation the surface energy balance of this high-Arctic tundra ecosystem may experience a further increase in the variability of energy accumulation, partitioning and redistribution.

Patterned-Ground Plant Communities along a bioclimate gradient in the High Arctic, Canada

2008 ◽  
Vol 38 (1-2) ◽  
pp. 23-63 ◽  
Author(s):  
Corinne M. Vonlanthen ◽  
Donald A. Walker ◽  
Martha K. Raynolds ◽  
Anja Kade ◽  
Patrick Kuss ◽  
...  
Keyword(s):  
Plant Communities ◽  
High Arctic ◽  
Arctic Canada ◽  
Patterned Ground
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