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Data from: Fifty thousand years of arctic vegetation and megafaunal diet

Data from: Fifty thousand years of arctic vegetation and megafaunal diet
Data from: Fifty thousand years of arctic vegetation and megafaunal diet
Although it is generally agreed that the arctic flora is among the youngest and least diverse on Earth, the processes that shaped it are poorly understood. Here we present 50 thousand years (kyr) of arctic vegetation history, derived from the first large-scale ancient DNA metabarcoding study of circumpolar plant diversity. For this interval we additionally explore nematode diversity as a proxy for modelling vegetation cover and soil quality, and diets of herbivorous megafaunal mammals, many of which became extinct around 10 kyr BP (before present). For much of the period investigated, arctic vegetation consisted of dry steppe tundra dominated by forbs (non-graminoid herbaceous vascular plants). During the Last Glacial Maximum (25–15 kyr BP), diversity declined markedly, although forbs remained dominant. Much changed after 10 kyr BP, with the appearance of moist tundra dominated by woody plants and graminoids. Our analyses indicate that both graminoids and forbs would have featured in megafaunal diets. As such our findings question the predominance of a late Quaternary graminoid-dominated arctic “mammoth steppe”.
DRYAD
Willerslev, Eske
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Willerslev, Eske
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Taberlet, Pierre
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(2014) Data from: Fifty thousand years of arctic vegetation and megafaunal diet. DRYAD doi:10.5061/dryad.ph8s5 [Dataset]

Record type: Dataset

Abstract

Although it is generally agreed that the arctic flora is among the youngest and least diverse on Earth, the processes that shaped it are poorly understood. Here we present 50 thousand years (kyr) of arctic vegetation history, derived from the first large-scale ancient DNA metabarcoding study of circumpolar plant diversity. For this interval we additionally explore nematode diversity as a proxy for modelling vegetation cover and soil quality, and diets of herbivorous megafaunal mammals, many of which became extinct around 10 kyr BP (before present). For much of the period investigated, arctic vegetation consisted of dry steppe tundra dominated by forbs (non-graminoid herbaceous vascular plants). During the Last Glacial Maximum (25–15 kyr BP), diversity declined markedly, although forbs remained dominant. Much changed after 10 kyr BP, with the appearance of moist tundra dominated by woody plants and graminoids. Our analyses indicate that both graminoids and forbs would have featured in megafaunal diets. As such our findings question the predominance of a late Quaternary graminoid-dominated arctic “mammoth steppe”.

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More information

Published date: 2014
Related URLs:
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Identifiers

Local EPrints ID: 449441
URI: http://eprints.soton.ac.uk/id/eprint/449441
DOI: doi:10.5061/dryad.ph8s5
PURE UUID: 0df27818-2a41-43d9-9f1f-01b48e848447
ORCID for Mary E. Edwards: ORCID iD orcid.org/0000-0002-3490-6682

Catalogue record

Date deposited: 28 May 2021 16:33
Last modified: 06 May 2023 01:39

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Contributors

Contributor: Eske Willerslev
Contributor: John Davison
Contributor: Mari Moora
Contributor: Martin Zobel
Contributor: Eric Coissac
Contributor: Mary E. Edwards ORCID iD
Contributor: Eline D. Lorenzen
Contributor: Mette Vestergård
Contributor: Galina Gussarova
Contributor: James Haile
Contributor: Joseph Craine
Contributor: Gaddy Bergmann
Contributor: Ludovic Gielly
Contributor: Sanne Boessenkool
Contributor: Laura S. Epp
Contributor: Peter B. Pearman
Contributor: Rachid Cheddadi
Contributor: David Murray
Contributor: Karri Anne Bråthen
Contributor: Nigel Yoccoz
Contributor: Heather Binney
Contributor: Corinne Cruaud
Contributor: Patrick Wincker
Contributor: Tomasz Goslar
Contributor: Inger Greve Alsos
Contributor: Eva Bellemain
Contributor: Anne Krag Brysting
Contributor: Reidar Elven
Contributor: Jørn Henrik Sønstebø
Contributor: Julian Murton
Contributor: Andrei Sher
Contributor: Morten Rasmussen
Contributor: Regin Rønn
Contributor: Tobias Mourier
Contributor: Alan Cooper
Contributor: Jeremy Austin
Contributor: Per Möller
Contributor: Duane Froese
Contributor: Grant Zazula
Contributor: François Pompanon
Contributor: Delphine Rioux
Contributor: Vincent Niderkorn
Contributor: Alexei Tikhonov
Contributor: Grigoriy Savvinov
Contributor: Richard G. Roberts
Contributor: Ross D. E. MacPhee
Contributor: M. Thomas P. Gilbert
Contributor: Kurt H. Kjær
Contributor: Ludovic Orlando
Contributor: Christian Brochmann
Contributor: Pierre Taberlet

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