Global southern limit of flowering plants and moss peat accumulation
The ecosystems of the western Antarctic Peninsula, experiencing amongst the most rapid trends of regional climate warming worldwide, are important “early warning” indicators for responses expected in more complex systems elsewhere. Central among responses attributed to this reg...
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Norwegian Polar Institute
2011
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Online Access: | https://doi.org/10.3402/polar.v30i0.8929 https://doaj.org/article/ae5f83f1aa894c4d9adc6bfdd0584d46 |
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ftdoajarticles:oai:doaj.org/article:ae5f83f1aa894c4d9adc6bfdd0584d46 2023-05-15T13:15:20+02:00 Global southern limit of flowering plants and moss peat accumulation Peter Convey David W. Hopkins Stephen J. Roberts Andrew N. Tyler 2011-10-01T00:00:00Z https://doi.org/10.3402/polar.v30i0.8929 https://doaj.org/article/ae5f83f1aa894c4d9adc6bfdd0584d46 EN eng Norwegian Polar Institute http://www.polarresearch.net/index.php/polar/article/view/8929/pdf https://doaj.org/toc/0800-0395 https://doaj.org/toc/1751-8369 doi:10.3402/polar.v30i0.8929 0800-0395 1751-8369 https://doaj.org/article/ae5f83f1aa894c4d9adc6bfdd0584d46 Polar Research, Vol 30, Iss 0, Pp 1-10 (2011) Antarctic plants distribution limits peat accumulation dating Environmental sciences GE1-350 Oceanography GC1-1581 article 2011 ftdoajarticles https://doi.org/10.3402/polar.v30i0.8929 2022-12-31T07:15:48Z The ecosystems of the western Antarctic Peninsula, experiencing amongst the most rapid trends of regional climate warming worldwide, are important “early warning” indicators for responses expected in more complex systems elsewhere. Central among responses attributed to this regional warming are widely reported population and range expansions of the two native Antarctic flowering plants, Deschampsia antarctica and Colobanthus quitensis. However, confirmation of the predictions of range expansion requires baseline knowledge of species distributions. We report a significant southwards and westwards extension of the known natural distributions of both plant species in this region, along with several range extensions in an unusual moss community, based on a new survey work in a previously unexamined and un-named low altitude peninsula at 69°22.0′S 71°50.7′W in Lazarev Bay, north-west Alexander Island, southern Antarctic Peninsula. These plant species therefore have a significantly larger natural range in the Antarctic than previously thought. This site provides a potentially important monitoring location near the southern boundary of the region currently demonstrated to be under the influence of rapidly changing climate trends. Combined radiocarbon and lead isotope radiometric dating suggests that this location was most likely deglaciated sufficiently to allow peat to start accumulating towards the end of the 19th century, which we tentatively link to a phase of post-1870 climate amelioration. We conclude that the establishment of vegetation in this location is unlikely to be linked to the rapid regional warming trends recorded along the Antarctic Peninsula since the mid-20th century. Article in Journal/Newspaper Alexander Island Antarc* Antarctic Antarctic Peninsula Antarctica Lazarev Bay Polar Research Directory of Open Access Journals: DOAJ Articles Alexander Island ENVELOPE(-69.895,-69.895,-71.287,-71.287) Antarctic Antarctic Peninsula Lazarev ENVELOPE(12.917,12.917,-69.967,-69.967) Lazarev Bay ENVELOPE(-72.068,-72.068,-69.454,-69.454) The Antarctic Polar Research 30 1 8929 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Antarctic plants distribution limits peat accumulation dating Environmental sciences GE1-350 Oceanography GC1-1581 |
spellingShingle |
Antarctic plants distribution limits peat accumulation dating Environmental sciences GE1-350 Oceanography GC1-1581 Peter Convey David W. Hopkins Stephen J. Roberts Andrew N. Tyler Global southern limit of flowering plants and moss peat accumulation |
topic_facet |
Antarctic plants distribution limits peat accumulation dating Environmental sciences GE1-350 Oceanography GC1-1581 |
description |
The ecosystems of the western Antarctic Peninsula, experiencing amongst the most rapid trends of regional climate warming worldwide, are important “early warning” indicators for responses expected in more complex systems elsewhere. Central among responses attributed to this regional warming are widely reported population and range expansions of the two native Antarctic flowering plants, Deschampsia antarctica and Colobanthus quitensis. However, confirmation of the predictions of range expansion requires baseline knowledge of species distributions. We report a significant southwards and westwards extension of the known natural distributions of both plant species in this region, along with several range extensions in an unusual moss community, based on a new survey work in a previously unexamined and un-named low altitude peninsula at 69°22.0′S 71°50.7′W in Lazarev Bay, north-west Alexander Island, southern Antarctic Peninsula. These plant species therefore have a significantly larger natural range in the Antarctic than previously thought. This site provides a potentially important monitoring location near the southern boundary of the region currently demonstrated to be under the influence of rapidly changing climate trends. Combined radiocarbon and lead isotope radiometric dating suggests that this location was most likely deglaciated sufficiently to allow peat to start accumulating towards the end of the 19th century, which we tentatively link to a phase of post-1870 climate amelioration. We conclude that the establishment of vegetation in this location is unlikely to be linked to the rapid regional warming trends recorded along the Antarctic Peninsula since the mid-20th century. |
format |
Article in Journal/Newspaper |
author |
Peter Convey David W. Hopkins Stephen J. Roberts Andrew N. Tyler |
author_facet |
Peter Convey David W. Hopkins Stephen J. Roberts Andrew N. Tyler |
author_sort |
Peter Convey |
title |
Global southern limit of flowering plants and moss peat accumulation |
title_short |
Global southern limit of flowering plants and moss peat accumulation |
title_full |
Global southern limit of flowering plants and moss peat accumulation |
title_fullStr |
Global southern limit of flowering plants and moss peat accumulation |
title_full_unstemmed |
Global southern limit of flowering plants and moss peat accumulation |
title_sort |
global southern limit of flowering plants and moss peat accumulation |
publisher |
Norwegian Polar Institute |
publishDate |
2011 |
url |
https://doi.org/10.3402/polar.v30i0.8929 https://doaj.org/article/ae5f83f1aa894c4d9adc6bfdd0584d46 |
long_lat |
ENVELOPE(-69.895,-69.895,-71.287,-71.287) ENVELOPE(12.917,12.917,-69.967,-69.967) ENVELOPE(-72.068,-72.068,-69.454,-69.454) |
geographic |
Alexander Island Antarctic Antarctic Peninsula Lazarev Lazarev Bay The Antarctic |
geographic_facet |
Alexander Island Antarctic Antarctic Peninsula Lazarev Lazarev Bay The Antarctic |
genre |
Alexander Island Antarc* Antarctic Antarctic Peninsula Antarctica Lazarev Bay Polar Research |
genre_facet |
Alexander Island Antarc* Antarctic Antarctic Peninsula Antarctica Lazarev Bay Polar Research |
op_source |
Polar Research, Vol 30, Iss 0, Pp 1-10 (2011) |
op_relation |
http://www.polarresearch.net/index.php/polar/article/view/8929/pdf https://doaj.org/toc/0800-0395 https://doaj.org/toc/1751-8369 doi:10.3402/polar.v30i0.8929 0800-0395 1751-8369 https://doaj.org/article/ae5f83f1aa894c4d9adc6bfdd0584d46 |
op_doi |
https://doi.org/10.3402/polar.v30i0.8929 |
container_title |
Polar Research |
container_volume |
30 |
container_issue |
1 |
container_start_page |
8929 |
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1766268108292489216 |