Summer temperature development 18,000-14,000 cal. BP recorded by a new chironomid record from Burgäschisee, Swiss Plateau
The termination of the Last Ice Age after the Last Glacial maximum (LGM) represents a dynamic period in the history of the circum-north Atlantic region. So far, there are few reliably dated climatic reconstructions covering the Lateglacial period prior to 14,700 cal. BP in Central and Northern Europ...
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Online Access: | https://edoc.unibas.ch/77918/ https://doi.org/10.1016/j.quascirev.2020.106484 |
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ftunivbasel:oai:edoc.unibas.ch:77918 2023-05-15T16:22:01+02:00 Summer temperature development 18,000-14,000 cal. BP recorded by a new chironomid record from Burgäschisee, Swiss Plateau Bolland, Alexander Rey, Fabian Gobet, Erika Tinner, Willy Heiri, Oliver 2020 https://edoc.unibas.ch/77918/ https://doi.org/10.1016/j.quascirev.2020.106484 unknown Elsevier Bolland, Alexander and Rey, Fabian and Gobet, Erika and Tinner, Willy and Heiri, Oliver. (2020) Summer temperature development 18,000-14,000 cal. BP recorded by a new chironomid record from Burgäschisee, Swiss Plateau. Quaternary Science Reviews, 243. p. 106484. doi:10.1016/j.quascirev.2020.106484 urn:ISSN:0277-3791 info:eu-repo/semantics/closedAccess Article PeerReviewed 2020 ftunivbasel https://doi.org/10.1016/j.quascirev.2020.106484 2023-03-05T07:25:45Z The termination of the Last Ice Age after the Last Glacial maximum (LGM) represents a dynamic period in the history of the circum-north Atlantic region. So far, there are few reliably dated climatic reconstructions covering the Lateglacial period prior to 14,700 cal. BP in Central and Northern Europe. We present a new chironomid record for the period 18,000-14,000 cal. BP, from Burgäschisee, Switzerland. Chironomid assemblages immediately following glacier retreat were dominated by taxa indicative of cold, oligotrophic conditions such as Sergentia coracina -type and Micropsectra radialis -type. A gradual transition to assemblages with moderate abundances of taxa indicative of warmer climatic conditions such as Dicrotendipes nevosus -type and Tanytarsus glabrescens -type started after ca. 16,100 cal. BP. This initial and gradual chironomid assemblage shift culminated in a more pronounced and rapid inferred temperature change at the Oldest Dryas/Bølling transition at ca. 14,700 cal. BP, where further types indicative of warm conditions such as Tanytarsus lactescens -type first occurred and replaced chironomids indicative of colder conditions such as Paracladius and Protanypus . We estimated past July air temperature changes from the chironomid assemblages by applying to the record a chironomid-temperature transfer function that is based on chironomid distribution data from 274 lakes in Switzerland and Norway. The resulting reconstruction, which features a sample-specific root mean square error of prediction of 1.36-1.46 °C, indicates temperatures around 9 °C at the beginning of the record. An initial gradual warming phase initiating at ca. 16,100 cal. BP is recorded reaching values around 10 °C for the period 16,100-15,500 cal. BP. Temperatures continue to increase reaching values around 12 °C for the period preceding the Bølling warming, when temperatures rose rapidly to values around 15 °C. The early temperature rise to values of 10-12 °C prior to the Bølling warming agrees with widespread vegetation changes ... Article in Journal/Newspaper glacier North Atlantic University of Basel: edoc Norway Quaternary Science Reviews 243 106484 |
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Open Polar |
collection |
University of Basel: edoc |
op_collection_id |
ftunivbasel |
language |
unknown |
description |
The termination of the Last Ice Age after the Last Glacial maximum (LGM) represents a dynamic period in the history of the circum-north Atlantic region. So far, there are few reliably dated climatic reconstructions covering the Lateglacial period prior to 14,700 cal. BP in Central and Northern Europe. We present a new chironomid record for the period 18,000-14,000 cal. BP, from Burgäschisee, Switzerland. Chironomid assemblages immediately following glacier retreat were dominated by taxa indicative of cold, oligotrophic conditions such as Sergentia coracina -type and Micropsectra radialis -type. A gradual transition to assemblages with moderate abundances of taxa indicative of warmer climatic conditions such as Dicrotendipes nevosus -type and Tanytarsus glabrescens -type started after ca. 16,100 cal. BP. This initial and gradual chironomid assemblage shift culminated in a more pronounced and rapid inferred temperature change at the Oldest Dryas/Bølling transition at ca. 14,700 cal. BP, where further types indicative of warm conditions such as Tanytarsus lactescens -type first occurred and replaced chironomids indicative of colder conditions such as Paracladius and Protanypus . We estimated past July air temperature changes from the chironomid assemblages by applying to the record a chironomid-temperature transfer function that is based on chironomid distribution data from 274 lakes in Switzerland and Norway. The resulting reconstruction, which features a sample-specific root mean square error of prediction of 1.36-1.46 °C, indicates temperatures around 9 °C at the beginning of the record. An initial gradual warming phase initiating at ca. 16,100 cal. BP is recorded reaching values around 10 °C for the period 16,100-15,500 cal. BP. Temperatures continue to increase reaching values around 12 °C for the period preceding the Bølling warming, when temperatures rose rapidly to values around 15 °C. The early temperature rise to values of 10-12 °C prior to the Bølling warming agrees with widespread vegetation changes ... |
format |
Article in Journal/Newspaper |
author |
Bolland, Alexander Rey, Fabian Gobet, Erika Tinner, Willy Heiri, Oliver |
spellingShingle |
Bolland, Alexander Rey, Fabian Gobet, Erika Tinner, Willy Heiri, Oliver Summer temperature development 18,000-14,000 cal. BP recorded by a new chironomid record from Burgäschisee, Swiss Plateau |
author_facet |
Bolland, Alexander Rey, Fabian Gobet, Erika Tinner, Willy Heiri, Oliver |
author_sort |
Bolland, Alexander |
title |
Summer temperature development 18,000-14,000 cal. BP recorded by a new chironomid record from Burgäschisee, Swiss Plateau |
title_short |
Summer temperature development 18,000-14,000 cal. BP recorded by a new chironomid record from Burgäschisee, Swiss Plateau |
title_full |
Summer temperature development 18,000-14,000 cal. BP recorded by a new chironomid record from Burgäschisee, Swiss Plateau |
title_fullStr |
Summer temperature development 18,000-14,000 cal. BP recorded by a new chironomid record from Burgäschisee, Swiss Plateau |
title_full_unstemmed |
Summer temperature development 18,000-14,000 cal. BP recorded by a new chironomid record from Burgäschisee, Swiss Plateau |
title_sort |
summer temperature development 18,000-14,000 cal. bp recorded by a new chironomid record from burgäschisee, swiss plateau |
publisher |
Elsevier |
publishDate |
2020 |
url |
https://edoc.unibas.ch/77918/ https://doi.org/10.1016/j.quascirev.2020.106484 |
geographic |
Norway |
geographic_facet |
Norway |
genre |
glacier North Atlantic |
genre_facet |
glacier North Atlantic |
op_relation |
Bolland, Alexander and Rey, Fabian and Gobet, Erika and Tinner, Willy and Heiri, Oliver. (2020) Summer temperature development 18,000-14,000 cal. BP recorded by a new chironomid record from Burgäschisee, Swiss Plateau. Quaternary Science Reviews, 243. p. 106484. doi:10.1016/j.quascirev.2020.106484 urn:ISSN:0277-3791 |
op_rights |
info:eu-repo/semantics/closedAccess |
op_doi |
https://doi.org/10.1016/j.quascirev.2020.106484 |
container_title |
Quaternary Science Reviews |
container_volume |
243 |
container_start_page |
106484 |
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1766009982771265536 |