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The High–Low Arctic...
The High–Low Arctic boundary : How is it determined and where is it located?
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- Ermokhina, Ksenia A. (författare)
- Severtsov Institute of Ecology and Evolution, Russian Academy of Sciences
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- Terskaia, Anna I. (författare)
- Lund University,Lunds universitet,BECC: Biodiversity and Ecosystem services in a Changing Climate,Centrum för miljö- och klimatvetenskap (CEC),Naturvetenskapliga fakulteten,Institutionen för naturgeografi och ekosystemvetenskap,Centre for Environmental and Climate Science (CEC),Faculty of Science,Dept of Physical Geography and Ecosystem Science,Lomonosov Moscow State University
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- Ivleva, Tatiana Yu (författare)
- Severtsov Institute of Ecology and Evolution, Russian Academy of Sciences
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- Dudov, Sergey V. (författare)
- Lomonosov Moscow State University
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- Zemlianskii, Vitalii (författare)
- University of Zurich
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- Telyatnikov, Michael Yu (författare)
- Central Siberian Botanical Garden, Siberian Branch Of The Russian Academy Of Sciences
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- Khitun, Olga V. (författare)
- Komarov Botanical Institute, Sankt Petersburg
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- Troeva, Elena I. (författare)
- Institute for Biological Problems of Cryolithozone, Siberian Branch of RAS
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- Koroleva, Natalia E. (författare)
- Polar-Alpine Botanical Garden-Institute Kola Science Centre of the Russian Academy of Sciences
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- Abdulmanova, Svetlana Yu (författare)
- Institute Of Plant And Animal Ecology Ural Branch Of Russian Academy Of Sciences
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(creator_code:org_t)
- 2023
- 2023
- Engelska.
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Ingår i: Ecology and Evolution. - 2045-7758. ; 13:10
- Relaterad länk:
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http://dx.doi.org/10... (free)
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https://lup.lub.lu.s...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- Geobotanical subdivision of landcover is a baseline for many studies. The High–Low Arctic boundary is considered to be of fundamental natural importance. The wide application of different delimitation schemes in various ecological studies and climatic scenarios raises the following questions: (i) What are the common criteria to define the High and Low Arctic? (ii) Could human impact significantly change the distribution of the delimitation criteria? (iii) Is the widely accepted temperature criterion still relevant given ongoing climate change? and (iv) Could we locate the High–Low Arctic boundary by mapping these criteria derived from modern open remote sensing and climatic data? Researchers rely on common criteria for geobotanical delimitation of the Arctic. Unified circumpolar criteria are based on the structure of vegetation cover and climate, while regional specifics are reflected in the floral composition. However, the published delimitation schemes vary greatly. The disagreement in the location of geobotanical boundaries across the studies manifests in poorly comparable results. While maintaining the common principles of geobotanical subdivision, we derived the boundary between the High and Low Arctic using the most up-to-date field data and modern techniques: species distribution modeling, radar, thermal and optical satellite imagery processing, and climatic data analysis. The position of the High–Low Arctic boundary in Western Siberia was clarified and mapped. The new boundary is located 50–100 km further north compared to all the previously presented ones. Long-term anthropogenic press contributes to a change in the vegetation structure but does not noticeably affect key species ranges. A previously specified climatic criterion for the High–Low Arctic boundary accepted in scientific literature has not coincided with the boundary in Western Siberia for over 70 years. The High–Low Arctic boundary is distinctly reflected in biodiversity distribution. The presented approach is appropriate for accurate mapping of the High–Low Arctic boundary in the circumpolar extent.
Ämnesord
- NATURVETENSKAP -- Geovetenskap och miljövetenskap -- Klimatforskning (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences -- Climate Research (hsv//eng)
- NATURVETENSKAP -- Geovetenskap och miljövetenskap -- Miljövetenskap (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences -- Environmental Sciences (hsv//eng)
Nyckelord
- Arctic Vegetation Archive
- biogeography and macroecology
- ERA5
- geobotanical boundaries
- MODIS
- plant–climate interactions
- remote sensing data (Landsat)
- species distribution modeling (SDM)
- the High and Low Arctic
- Western Siberia
Publikations- och innehållstyp
- art (ämneskategori)
- ref (ämneskategori)
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Till lärosätets databas
- Av författaren/redakt...
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Ermokhina, Kseni ...
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Terskaia, Anna I ...
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Ivleva, Tatiana ...
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Dudov, Sergey V.
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Zemlianskii, Vit ...
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Telyatnikov, Mic ...
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Khitun, Olga V.
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Troeva, Elena I.
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Koroleva, Natali ...
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Abdulmanova, Sve ...
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