Dendro-provenancing of Arctic driftwood

Hellmann, L.; Tegel, W.; Geyer, J.; Kirdyanov, A. V.; Nikolaev, A. N.; Eggertsson, O.; Altman, Jan; Reinig, F.; Morganti, S.; Wacker, L.; Büntgen, Ulf

doi:https://dx.doi.org/10.1016/j.quascirev.2017.02.025

Number of the records: 1

Dendro-provenancing of Arctic driftwood

1.

SYSNO ASEP	0474821
Document Type	J - Journal Article
R&D Document Type	Journal Article
Subsidiary J	Článek ve WOS
Title	Dendro-provenancing of Arctic driftwood
Author(s)	Hellmann, L. (CH) Tegel, W. (DE) Geyer, J. (DE) Kirdyanov, A. V. (RU) Nikolaev, A. N. (RU) Eggertsson, O. (IS) Altman, Jan (BU-J)_{RID, ORCID} Reinig, F. (CH) Morganti, S. (IT) Wacker, L. (CH) Büntgen, Ulf (UEK-B)_{RID, ORCID, SAI}
Source Title	Quaternary Science Reviews. - : Elsevier - ISSN 0277-3791 Roč. 162, 15 April 2017 (2017), s. 1-11
Number of pages	11 s.
Language	eng - English
Country	GB - United Kingdom
Keywords	Driftwood ; Arctic ocean ; Boreal forest
Subject RIV	DG - Athmosphere Sciences, Meteorology
OECD category	Climatic research
Subject RIV - cooperation	Global Change Research Institute - Athmosphere Sciences, Meteorology
R&D Projects	GA17-07378S GA ČR - Czech Science Foundation (CSF)
Institutional support	BU-J - RVO:67985939 ; RVO:67179843 - RVO:67179843
UT WOS	000399849900001
EID SCOPUS	85014734924
DOI	10.1016/j.quascirev.2017.02.025
Annotation	Arctic driftwood may represent a cross-disciplinary proxy archive at the interface of marine and terrestrial environments, which will likely gain in importance under future global climate change. Circumpolar network analyses that systematically consider species-specific boreal origin areas, transport routes and deposition characteristics of Arctic driftwood, are, however, missing. Here, we present treering width (TRW) measurements of 2412 pine, larch and spruce driftwood samples from Greenland, Iceland, Svalbard, the Faroe Islands, and the Lena Delta in northeastern Siberia. Representing the largest Arctic driftwood TRW compilation, these data are compared against 495 TRW reference chronologies from the boreal forests of Eurasia and North America. The southern Yenisei region is the main source for recent pine driftwood at all Arctic sampling sites, whereas spruce mainly originates in western Russia and central Siberia, as well as in northern North America. Larch driftwood is, for the first time, dendroprovenanced to central and eastern Siberia. A new larch driftwood chronology extends the middle Lena River reference chronology back to 1203 CE. Annually resolved radiocarbon measurements further date six larch driftwood chronologies between 1294 and 2013 CE. Although being highly replicated, our study emphasizes the importance of interdisciplinary research efforts including radiocarbon dating, isotopic tracing and aDNA processing for improving Arctic driftwood provenancing in space and time. If successful, Arctic driftwood studies will contribute to the reconstruction of past boreal summer temperature variations and ocean current dynamics, as well as changes in sea ice extent and relative sea level over the last centuries to millennia.
Workplace	Institute of Botany
Contact	Martina Bartošová, martina.bartosova@ibot.cas.cz, ibot@ibot.cas.cz, Tel.: 271 015 242 ; Marie Jakšová, marie.jaksova@ibot.cas.cz, Tel.: 384 721 156-8
Year of Publishing	2018

Number of the records: 1