The response of NW Iberian vegetation to North Atlantic climate oscillations during the last 65 kyr
Pollen and oceanographic data from deep ocean core MD95-2039 provide a centennial to millennial scale record of conditions offshore and of the vegetation of north-west Iberia for the period 10-65 ka. The planktonic oxygen isotope record of this core, reflecting predominantly sea surface temperature...
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PERGAMON-ELSEVIER SCIENCE LTD
2005
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ftucl:oai:eprints.ucl.ac.uk.OAI2:130970 2023-05-15T16:27:22+02:00 The response of NW Iberian vegetation to North Atlantic climate oscillations during the last 65 kyr Roucoux, KH De Abreu, L Shackleton, NJ Tzedakis, PC 2005-08 http://discovery.ucl.ac.uk/130970/ unknown PERGAMON-ELSEVIER SCIENCE LTD QUATERNARY SCI REV , 24 (14-15) 1637 - 1653. (2005) GRANDE-DI-MONTICCHIO BIOLOGICAL FLORA GLACIAL PERIOD BRITISH-ISLES PORTUGUESE MARGIN HEINRICH EVENTS OXYGEN-ISOTOPE GREENLAND ICE POLLEN RECORD Article 2005 ftucl 2016-01-15T03:11:43Z Pollen and oceanographic data from deep ocean core MD95-2039 provide a centennial to millennial scale record of conditions offshore and of the vegetation of north-west Iberia for the period 10-65 ka. The planktonic oxygen isotope record of this core, reflecting predominantly sea surface temperature (SST), shows a pattern of millennial-scale oscillations that is very similar to climatic changes recorded by the Greenland ice core records over the same interval. In turn, tree populations show a pattern of rapid expansions and contractions that follow the pronounced and abrupt isotopic shifts recorded offshore. Through Marine Isotope Stage (MIS) 3, this millennial-scale pattern of vegetation change, alternating between steppe and open woodland, is superimposed on a longer-term pattern of shrinking ericaceous heathland and decreasing size of successive interstadial tree populations. Trees persisted during the Last Glacial Maximum (LGM), at greater abundance than during many of the coldest episodes of MIS 3. This agrees with the marine data which indicate that LGM sea surface temperatures here were significantly warmer than the minima recorded in MIS 3. Our combined marine-terrestrial record, together with data from nearby sequences, provides a stepping stone between terrestrial sequences and the Greenland ice core and North Atlantic marine records. This will permit a better understanding of the behaviour of vegetation across different regions at several scales of climatic forcing. (c) 2005 Elsevier Ltd. All rights reserved. Article in Journal/Newspaper Greenland Greenland ice core ice core North Atlantic University College London: UCL Discovery Greenland |
institution |
Open Polar |
collection |
University College London: UCL Discovery |
op_collection_id |
ftucl |
language |
unknown |
topic |
GRANDE-DI-MONTICCHIO BIOLOGICAL FLORA GLACIAL PERIOD BRITISH-ISLES PORTUGUESE MARGIN HEINRICH EVENTS OXYGEN-ISOTOPE GREENLAND ICE POLLEN RECORD |
spellingShingle |
GRANDE-DI-MONTICCHIO BIOLOGICAL FLORA GLACIAL PERIOD BRITISH-ISLES PORTUGUESE MARGIN HEINRICH EVENTS OXYGEN-ISOTOPE GREENLAND ICE POLLEN RECORD Roucoux, KH De Abreu, L Shackleton, NJ Tzedakis, PC The response of NW Iberian vegetation to North Atlantic climate oscillations during the last 65 kyr |
topic_facet |
GRANDE-DI-MONTICCHIO BIOLOGICAL FLORA GLACIAL PERIOD BRITISH-ISLES PORTUGUESE MARGIN HEINRICH EVENTS OXYGEN-ISOTOPE GREENLAND ICE POLLEN RECORD |
description |
Pollen and oceanographic data from deep ocean core MD95-2039 provide a centennial to millennial scale record of conditions offshore and of the vegetation of north-west Iberia for the period 10-65 ka. The planktonic oxygen isotope record of this core, reflecting predominantly sea surface temperature (SST), shows a pattern of millennial-scale oscillations that is very similar to climatic changes recorded by the Greenland ice core records over the same interval. In turn, tree populations show a pattern of rapid expansions and contractions that follow the pronounced and abrupt isotopic shifts recorded offshore. Through Marine Isotope Stage (MIS) 3, this millennial-scale pattern of vegetation change, alternating between steppe and open woodland, is superimposed on a longer-term pattern of shrinking ericaceous heathland and decreasing size of successive interstadial tree populations. Trees persisted during the Last Glacial Maximum (LGM), at greater abundance than during many of the coldest episodes of MIS 3. This agrees with the marine data which indicate that LGM sea surface temperatures here were significantly warmer than the minima recorded in MIS 3. Our combined marine-terrestrial record, together with data from nearby sequences, provides a stepping stone between terrestrial sequences and the Greenland ice core and North Atlantic marine records. This will permit a better understanding of the behaviour of vegetation across different regions at several scales of climatic forcing. (c) 2005 Elsevier Ltd. All rights reserved. |
format |
Article in Journal/Newspaper |
author |
Roucoux, KH De Abreu, L Shackleton, NJ Tzedakis, PC |
author_facet |
Roucoux, KH De Abreu, L Shackleton, NJ Tzedakis, PC |
author_sort |
Roucoux, KH |
title |
The response of NW Iberian vegetation to North Atlantic climate oscillations during the last 65 kyr |
title_short |
The response of NW Iberian vegetation to North Atlantic climate oscillations during the last 65 kyr |
title_full |
The response of NW Iberian vegetation to North Atlantic climate oscillations during the last 65 kyr |
title_fullStr |
The response of NW Iberian vegetation to North Atlantic climate oscillations during the last 65 kyr |
title_full_unstemmed |
The response of NW Iberian vegetation to North Atlantic climate oscillations during the last 65 kyr |
title_sort |
response of nw iberian vegetation to north atlantic climate oscillations during the last 65 kyr |
publisher |
PERGAMON-ELSEVIER SCIENCE LTD |
publishDate |
2005 |
url |
http://discovery.ucl.ac.uk/130970/ |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
Greenland Greenland ice core ice core North Atlantic |
genre_facet |
Greenland Greenland ice core ice core North Atlantic |
op_source |
QUATERNARY SCI REV , 24 (14-15) 1637 - 1653. (2005) |
_version_ |
1766016523842879488 |