Late Quaternary Vegetation History of Northern North America Based on Pollen, Macrofossil, and Faunal Remains
Biome maps spanning the interval from the last glacial maximum to modern times are presented. The biome distributions at 18 ka BP were probably as nearly in equilibrium with climate as are the modern distributions, but deglacial biomes were probably in disequilibrium. Ice sheet configuration was a s...
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Les Presses de l'Université de Montréal
2005
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Online Access: | https://doi.org/10.7202/014755ar http://id.erudit.org/iderudit/014755ar |
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fttriple:oai:gotriple.eu:10.7202/014755ar 2023-05-15T16:41:28+02:00 Late Quaternary Vegetation History of Northern North America Based on Pollen, Macrofossil, and Faunal Remains Dyke, Arthur S. 2005-01-01 https://doi.org/10.7202/014755ar http://id.erudit.org/iderudit/014755ar en eng Les Presses de l'Université de Montréal Érudit doi:10.7202/014755ar http://id.erudit.org/iderudit/014755ar Géographie physique et Quaternaire geo envir Text https://vocabularies.coar-repositories.org/resource_types/c_18cf/ 2005 fttriple https://doi.org/10.7202/014755ar 2023-01-22T17:02:41Z Biome maps spanning the interval from the last glacial maximum to modern times are presented. The biome distributions at 18 ka BP were probably as nearly in equilibrium with climate as are the modern distributions, but deglacial biomes were probably in disequilibrium. Ice sheet configuration was a strong control of climate until 7 ka BP. Regional climate trends can be inferred from changing biome distributions, but during periods of disequilibrium, biome distributions under-represent summer warming. Because of summer cooling by 2-4 °C during the Holocene, largely in the last 3-5 ka, middle and certain early Holocene biome distributions and species compositions are reasonable analogues of future equilibrium displacements due to equivalent warming, at least in areas that were long-since deglaciated. Past biome migration rates in response to rapid regional warming during deglaciation were mainly in the range of 100-200 m per year. If these rates pertain in the future, biomes may shift 10-20 km in most regions over the next century. A major impediment to using former Holocene conditions as a guide to future conditions is that warmer Holocene summers were accompanied by colder winters, whereas warmer future summers will be accompanied by warmer winters. Les cartes des biomes établies entre le dernier maximum glaciaire et les temps modernes sont présentées. La répartition des biomes en 18 ka BP était probablement en équilibre avec le climat comme les distributions modernes, mais les biomes durant la déglaciation étaient probablement en déséquilibre. La configuration de la calotte glaciaire exerçait un fort contrôle sur le climat jusque vers 7 ka BP. Les tendances climatiques régionales peuvent être estimées à partir des changements observés dans la répartition des biomes, mais en période de déséquilibre leur distribution sous-représente le réchauffement estival. À cause du refroidissement estival de 2 à 4 °C durant l’Holocène, depuis les derniers 3 à 5 ka, la distribution des biomes au cours de l’Holocène moyen et ... Text Ice Sheet Unknown Géographie physique et Quaternaire 59 2-3 211 262 |
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English |
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geo envir |
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geo envir Dyke, Arthur S. Late Quaternary Vegetation History of Northern North America Based on Pollen, Macrofossil, and Faunal Remains |
topic_facet |
geo envir |
description |
Biome maps spanning the interval from the last glacial maximum to modern times are presented. The biome distributions at 18 ka BP were probably as nearly in equilibrium with climate as are the modern distributions, but deglacial biomes were probably in disequilibrium. Ice sheet configuration was a strong control of climate until 7 ka BP. Regional climate trends can be inferred from changing biome distributions, but during periods of disequilibrium, biome distributions under-represent summer warming. Because of summer cooling by 2-4 °C during the Holocene, largely in the last 3-5 ka, middle and certain early Holocene biome distributions and species compositions are reasonable analogues of future equilibrium displacements due to equivalent warming, at least in areas that were long-since deglaciated. Past biome migration rates in response to rapid regional warming during deglaciation were mainly in the range of 100-200 m per year. If these rates pertain in the future, biomes may shift 10-20 km in most regions over the next century. A major impediment to using former Holocene conditions as a guide to future conditions is that warmer Holocene summers were accompanied by colder winters, whereas warmer future summers will be accompanied by warmer winters. Les cartes des biomes établies entre le dernier maximum glaciaire et les temps modernes sont présentées. La répartition des biomes en 18 ka BP était probablement en équilibre avec le climat comme les distributions modernes, mais les biomes durant la déglaciation étaient probablement en déséquilibre. La configuration de la calotte glaciaire exerçait un fort contrôle sur le climat jusque vers 7 ka BP. Les tendances climatiques régionales peuvent être estimées à partir des changements observés dans la répartition des biomes, mais en période de déséquilibre leur distribution sous-représente le réchauffement estival. À cause du refroidissement estival de 2 à 4 °C durant l’Holocène, depuis les derniers 3 à 5 ka, la distribution des biomes au cours de l’Holocène moyen et ... |
format |
Text |
author |
Dyke, Arthur S. |
author_facet |
Dyke, Arthur S. |
author_sort |
Dyke, Arthur S. |
title |
Late Quaternary Vegetation History of Northern North America Based on Pollen, Macrofossil, and Faunal Remains |
title_short |
Late Quaternary Vegetation History of Northern North America Based on Pollen, Macrofossil, and Faunal Remains |
title_full |
Late Quaternary Vegetation History of Northern North America Based on Pollen, Macrofossil, and Faunal Remains |
title_fullStr |
Late Quaternary Vegetation History of Northern North America Based on Pollen, Macrofossil, and Faunal Remains |
title_full_unstemmed |
Late Quaternary Vegetation History of Northern North America Based on Pollen, Macrofossil, and Faunal Remains |
title_sort |
late quaternary vegetation history of northern north america based on pollen, macrofossil, and faunal remains |
publisher |
Les Presses de l'Université de Montréal |
publishDate |
2005 |
url |
https://doi.org/10.7202/014755ar http://id.erudit.org/iderudit/014755ar |
genre |
Ice Sheet |
genre_facet |
Ice Sheet |
op_source |
Géographie physique et Quaternaire |
op_relation |
doi:10.7202/014755ar http://id.erudit.org/iderudit/014755ar |
op_doi |
https://doi.org/10.7202/014755ar |
container_title |
Géographie physique et Quaternaire |
container_volume |
59 |
container_issue |
2-3 |
container_start_page |
211 |
op_container_end_page |
262 |
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1766031898687045632 |