Response of Arctic ecosystems to climate change: results of long-term field experiments in Sweden and Alaska

1999 ◽  
Vol 18 (2) ◽  
pp. 245-252 ◽  
Author(s):  
Gaius R. Shaver ◽  
Sven Jonasson
2010 ◽  
Vol 58 (Supplement 1) ◽  
pp. 7-11
Author(s):  
T. Kismányoki

The importance and necessity of long-term field experiments lie in the fact that long-term effects can only be studied reliably over several decades. The agronomic advances made in recent decades, based on chemicals and genetic gains, can be measured using long-term data, which will also be important in the future. Nutrient balances can be estimated reliably from the results of these experiments. The effect of climate change can be estimated by comparing long-term data from different locations. Long-term databases also form the background for computer models, designed to promote the sustainable development of agriculture and the environment.


2021 ◽  
Vol 126 ◽  
pp. 126263
Author(s):  
Mario Fontana ◽  
Gilles Bélanger ◽  
Juliane Hirte ◽  
Noura Ziadi ◽  
Saïd Elfouki ◽  
...  

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Sofia Ribeiro ◽  
Audrey Limoges ◽  
Guillaume Massé ◽  
Kasper L. Johansen ◽  
William Colgan ◽  
...  

AbstractHigh Arctic ecosystems and Indigenous livelihoods are tightly linked and exposed to climate change, yet assessing their sensitivity requires a long-term perspective. Here, we assess the vulnerability of the North Water polynya, a unique seaice ecosystem that sustains the world’s northernmost Inuit communities and several keystone Arctic species. We reconstruct mid-to-late Holocene changes in sea ice, marine primary production, and little auk colony dynamics through multi-proxy analysis of marine and lake sediment cores. Our results suggest a productive ecosystem by 4400–4200 cal yrs b2k coincident with the arrival of the first humans in Greenland. Climate forcing during the late Holocene, leading to periods of polynya instability and marine productivity decline, is strikingly coeval with the human abandonment of Greenland from c. 2200–1200 cal yrs b2k. Our long-term perspective highlights the future decline of the North Water ecosystem, due to climate warming and changing sea-ice conditions, as an important climate change risk.


2003 ◽  
Vol 49 (5) ◽  
pp. 465-483 ◽  
Author(s):  
Katalin Debreczeni ◽  
Martin Körschens

2018 ◽  
Vol 218 ◽  
pp. 158-170 ◽  
Author(s):  
Theresa Zicker ◽  
Sabine von Tucher ◽  
Mareike Kavka ◽  
Bettina Eichler-Löbermann

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