Recent climate warming drives ecological change in a remote high-Arctic lake

Abstract The high Arctic is the fastest warming region on Earth, evidenced by extreme near-surface temperature increase in non-summer seasons, recent rapid sea ice decline and permafrost melting since the early 1990’s. Understanding the impact of climate change on the sensitive Arctic ecosystem to c...

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Autores principales:	Lineke Woelders, Jan T. M. Lenaerts, Kimberley Hagemans, Keechy Akkerman, Thomas B. van Hoof, Wim Z. Hoek
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2018
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/658f753be8ee45cc9852812fb5b25448
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spelling	oai:doaj.org-article:658f753be8ee45cc9852812fb5b254482021-12-02T11:41:13ZRecent climate warming drives ecological change in a remote high-Arctic lake10.1038/s41598-018-25148-72045-2322https://doaj.org/article/658f753be8ee45cc9852812fb5b254482018-05-01T00:00:00Zhttps://doi.org/10.1038/s41598-018-25148-7https://doaj.org/toc/2045-2322Abstract The high Arctic is the fastest warming region on Earth, evidenced by extreme near-surface temperature increase in non-summer seasons, recent rapid sea ice decline and permafrost melting since the early 1990’s. Understanding the impact of climate change on the sensitive Arctic ecosystem to climate change has so far been hampered by the lack of time-constrained, high-resolution records and by implicit climate data analyses. Here, we show evidence of sharp growth in freshwater green algae as well as distinct diatom assemblage changes since ~1995, retrieved from a high-Arctic (80 °N) lake sediment record on Barentsøya (Svalbard). The proxy record approaches an annual to biennial resolution. Combining remote sensing and in-situ climate data, we show that this ecological change is concurrent with, and is likely driven by, the atmospheric warming and a sharp decrease in the length of the sea ice covered period in the region, and throughout the Arctic. Moreover, this research demonstrates the value of palaeoclimate records in pristine environments for supporting and extending instrumental records. Our results reinforce and extend observations from other sites that the high Arctic has already undergone rapid ecological changes in response to on-going climate change, and will continue to do so in the future.Lineke WoeldersJan T. M. LenaertsKimberley HagemansKeechy AkkermanThomas B. van HoofWim Z. HoekNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 8, Iss 1, Pp 1-8 (2018)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Lineke Woelders Jan T. M. Lenaerts Kimberley Hagemans Keechy Akkerman Thomas B. van Hoof Wim Z. Hoek Recent climate warming drives ecological change in a remote high-Arctic lake
description	Abstract The high Arctic is the fastest warming region on Earth, evidenced by extreme near-surface temperature increase in non-summer seasons, recent rapid sea ice decline and permafrost melting since the early 1990’s. Understanding the impact of climate change on the sensitive Arctic ecosystem to climate change has so far been hampered by the lack of time-constrained, high-resolution records and by implicit climate data analyses. Here, we show evidence of sharp growth in freshwater green algae as well as distinct diatom assemblage changes since ~1995, retrieved from a high-Arctic (80 °N) lake sediment record on Barentsøya (Svalbard). The proxy record approaches an annual to biennial resolution. Combining remote sensing and in-situ climate data, we show that this ecological change is concurrent with, and is likely driven by, the atmospheric warming and a sharp decrease in the length of the sea ice covered period in the region, and throughout the Arctic. Moreover, this research demonstrates the value of palaeoclimate records in pristine environments for supporting and extending instrumental records. Our results reinforce and extend observations from other sites that the high Arctic has already undergone rapid ecological changes in response to on-going climate change, and will continue to do so in the future.
format	article
author	Lineke Woelders Jan T. M. Lenaerts Kimberley Hagemans Keechy Akkerman Thomas B. van Hoof Wim Z. Hoek
author_facet	Lineke Woelders Jan T. M. Lenaerts Kimberley Hagemans Keechy Akkerman Thomas B. van Hoof Wim Z. Hoek
author_sort	Lineke Woelders
title	Recent climate warming drives ecological change in a remote high-Arctic lake
title_short	Recent climate warming drives ecological change in a remote high-Arctic lake
title_full	Recent climate warming drives ecological change in a remote high-Arctic lake
title_fullStr	Recent climate warming drives ecological change in a remote high-Arctic lake
title_full_unstemmed	Recent climate warming drives ecological change in a remote high-Arctic lake
title_sort	recent climate warming drives ecological change in a remote high-arctic lake
publisher	Nature Portfolio
publishDate	2018
url	https://doaj.org/article/658f753be8ee45cc9852812fb5b25448
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Recent climate warming drives ecological change in a remote high-Arctic lake

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