Universität zu Köln

Herzschuh, Ulrike ORCID: 0000-0003-0999-1261, Birks, H. John B., Laepple, Thomas ORCID: 0000-0001-8108-7520, Andreev, Andrei ORCID: 0000-0002-8745-9636, Melles, Martin ORCID: 0000-0003-0977-9463 and Brigham-Grette, Julie (2016). Glacial legacies on interglacial vegetation at the Pliocene-Pleistocene transition in NE Asia. Nat. Commun., 7. LONDON: NATURE PUBLISHING GROUP. ISSN 2041-1723

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Abstract

Broad-scale climate control of vegetation is widely assumed. Vegetation-climate lags are generally thought to have lasted no more than a few centuries. Here our palaeoecological study challenges this concept over glacial-interglacial timescales. Through multivariate analyses of pollen assemblages from Lake El'gygytgyn, Russian Far East and other data we show that interglacial vegetation during the Plio-Pleistocene transition mainly reflects conditions of the preceding glacial instead of contemporary interglacial climate. Vegetation-climate disequilibrium may persist for several millennia, related to the combined effects of permafrost persistence, distant glacial refugia and fire. In contrast, no effects from the preceding interglacial on glacial vegetation are detected. We propose that disequilibrium was stronger during the Plio-Pleistocene transition than during the Mid-Pliocene Warm Period when, in addition to climate, herbivory was important. By analogy to the past, we suggest today's widespread larch ecosystem on permafrost is not in climate equilibrium. Vegetation-based reconstructions of interglacial climates used to assess atmospheric CO2-temperature relationships may thus yield misleading simulations of past global climate sensitivity.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Herzschuh, Ulrike UNSPECIFIED orcid.org/0000-0003-0999-1261 UNSPECIFIED Birks, H. John B. UNSPECIFIED UNSPECIFIED UNSPECIFIED Laepple, Thomas UNSPECIFIED orcid.org/0000-0001-8108-7520 UNSPECIFIED Andreev, Andrei UNSPECIFIED orcid.org/0000-0002-8745-9636 UNSPECIFIED Melles, Martin UNSPECIFIED orcid.org/0000-0003-0977-9463 UNSPECIFIED Brigham-Grette, Julie UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-274747
DOI:	10.1038/ncomms11967
Journal or Publication Title:	Nat. Commun.
Volume:	7
Date:	2016
Publisher:	NATURE PUBLISHING GROUP
Place of Publication:	LONDON
ISSN:	2041-1723
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language CLIMATE-CHANGE; FIRE; HISTORY; LAKE; EVOLUTION; DYNAMICS; HOLOCENE; PACIFIC; RECORD; ICE Multiple languages Multidisciplinary Sciences Multiple languages
Refereed:	Yes
URI:	http://kups.ub.uni-koeln.de/id/eprint/27474