Synthesis of Effects in Four Arctic Subregions
An assessment of impacts on Arctic terrestrial ecosystems has emphasized geographical variability in responses of species and ecosystems to environmental change. This variability is usually associated with north-south gradients in climate, biodiversity, vegetation zones, and ecosystem structure and...
Published in: | AMBIO: A Journal of the Human Environment |
---|---|
Main Authors: | , , , , , , , , , , , , , , , , |
Format: | Text |
Language: | English |
Published: |
Royal Swedish Academy of Sciences
2004
|
Subjects: | |
Online Access: | https://doi.org/10.1579/0044-7447-33.7.469 |
id |
ftbioone:10.1579/0044-7447-33.7.469 |
---|---|
record_format |
openpolar |
spelling |
ftbioone:10.1579/0044-7447-33.7.469 2023-07-30T03:55:23+02:00 Synthesis of Effects in Four Arctic Subregions Terry V. Callaghan Lars Olof Björn Yuri Chernov Terry Chapin Torben R. Christensen Brian Huntley Rolf A. Ims Margareta Johansson Dyanna Jolly Sven Jonasson Nadya Matveyeva Nicolai Panikov Walter Oechel Gus Shaver Sibyll Schaphoff Stephen Sitch Christoph Zöckler Terry V. Callaghan Lars Olof Björn Yuri Chernov Terry Chapin Torben R. Christensen Brian Huntley Rolf A. Ims Margareta Johansson Dyanna Jolly Sven Jonasson Nadya Matveyeva Nicolai Panikov Walter Oechel Gus Shaver Sibyll Schaphoff Stephen Sitch Christoph Zöckler world 2004-11-01 text/HTML https://doi.org/10.1579/0044-7447-33.7.469 en eng Royal Swedish Academy of Sciences doi:10.1579/0044-7447-33.7.469 All rights reserved. https://doi.org/10.1579/0044-7447-33.7.469 Text 2004 ftbioone https://doi.org/10.1579/0044-7447-33.7.469 2023-07-09T09:35:12Z An assessment of impacts on Arctic terrestrial ecosystems has emphasized geographical variability in responses of species and ecosystems to environmental change. This variability is usually associated with north-south gradients in climate, biodiversity, vegetation zones, and ecosystem structure and function. It is clear, however, that significant east-west variability in environment, ecosystem structure and function, environmental history, and recent climate variability is also important. Some areas have cooled while others have become warmer. Also, east-west differences between geographical barriers of oceans, archipelagos and mountains have contributed significantly in the past to the ability of species and vegetation zones to relocate in response to climate changes, and they have created the isolation necessary for genetic differentiation of populations and biodiversity hot-spots to occur. These barriers will also affect the ability of species to relocate during projected future warming. To include this east-west variability and also to strike a balance between overgeneralization and overspecialization, the ACIA identified four major sub regions based on large-scale differences in weather and climate-shaping factors. Drawing on information, mostly model output that can be related to the four ACIA subregions, it is evident that geographical barriers to species re-location, particularly the distribution of landmasses and separation by seas, will affect the northwards shift in vegetation zones. The geographical constraints—or facilitation —of northward movement of vegetation zones will affect the future storage and release of carbon, and the exchange of energy and water between biosphere and atmosphere. In addition, differences in the ability of vegetation zones to re-locate will affect the biodiversity associated with each zone while the number of species threatened by climate change varies greatly between subregions with a significant hot-spot in Beringia. Overall, the subregional synthesis demonstrates the ... Text ACIA Arctic Climate change Beringia BioOne Online Journals Arctic AMBIO: A Journal of the Human Environment 33 7 469 473 |
institution |
Open Polar |
collection |
BioOne Online Journals |
op_collection_id |
ftbioone |
language |
English |
description |
An assessment of impacts on Arctic terrestrial ecosystems has emphasized geographical variability in responses of species and ecosystems to environmental change. This variability is usually associated with north-south gradients in climate, biodiversity, vegetation zones, and ecosystem structure and function. It is clear, however, that significant east-west variability in environment, ecosystem structure and function, environmental history, and recent climate variability is also important. Some areas have cooled while others have become warmer. Also, east-west differences between geographical barriers of oceans, archipelagos and mountains have contributed significantly in the past to the ability of species and vegetation zones to relocate in response to climate changes, and they have created the isolation necessary for genetic differentiation of populations and biodiversity hot-spots to occur. These barriers will also affect the ability of species to relocate during projected future warming. To include this east-west variability and also to strike a balance between overgeneralization and overspecialization, the ACIA identified four major sub regions based on large-scale differences in weather and climate-shaping factors. Drawing on information, mostly model output that can be related to the four ACIA subregions, it is evident that geographical barriers to species re-location, particularly the distribution of landmasses and separation by seas, will affect the northwards shift in vegetation zones. The geographical constraints—or facilitation —of northward movement of vegetation zones will affect the future storage and release of carbon, and the exchange of energy and water between biosphere and atmosphere. In addition, differences in the ability of vegetation zones to re-locate will affect the biodiversity associated with each zone while the number of species threatened by climate change varies greatly between subregions with a significant hot-spot in Beringia. Overall, the subregional synthesis demonstrates the ... |
author2 |
Terry V. Callaghan Lars Olof Björn Yuri Chernov Terry Chapin Torben R. Christensen Brian Huntley Rolf A. Ims Margareta Johansson Dyanna Jolly Sven Jonasson Nadya Matveyeva Nicolai Panikov Walter Oechel Gus Shaver Sibyll Schaphoff Stephen Sitch Christoph Zöckler |
format |
Text |
author |
Terry V. Callaghan Lars Olof Björn Yuri Chernov Terry Chapin Torben R. Christensen Brian Huntley Rolf A. Ims Margareta Johansson Dyanna Jolly Sven Jonasson Nadya Matveyeva Nicolai Panikov Walter Oechel Gus Shaver Sibyll Schaphoff Stephen Sitch Christoph Zöckler |
spellingShingle |
Terry V. Callaghan Lars Olof Björn Yuri Chernov Terry Chapin Torben R. Christensen Brian Huntley Rolf A. Ims Margareta Johansson Dyanna Jolly Sven Jonasson Nadya Matveyeva Nicolai Panikov Walter Oechel Gus Shaver Sibyll Schaphoff Stephen Sitch Christoph Zöckler Synthesis of Effects in Four Arctic Subregions |
author_facet |
Terry V. Callaghan Lars Olof Björn Yuri Chernov Terry Chapin Torben R. Christensen Brian Huntley Rolf A. Ims Margareta Johansson Dyanna Jolly Sven Jonasson Nadya Matveyeva Nicolai Panikov Walter Oechel Gus Shaver Sibyll Schaphoff Stephen Sitch Christoph Zöckler |
author_sort |
Terry V. Callaghan |
title |
Synthesis of Effects in Four Arctic Subregions |
title_short |
Synthesis of Effects in Four Arctic Subregions |
title_full |
Synthesis of Effects in Four Arctic Subregions |
title_fullStr |
Synthesis of Effects in Four Arctic Subregions |
title_full_unstemmed |
Synthesis of Effects in Four Arctic Subregions |
title_sort |
synthesis of effects in four arctic subregions |
publisher |
Royal Swedish Academy of Sciences |
publishDate |
2004 |
url |
https://doi.org/10.1579/0044-7447-33.7.469 |
op_coverage |
world |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
ACIA Arctic Climate change Beringia |
genre_facet |
ACIA Arctic Climate change Beringia |
op_source |
https://doi.org/10.1579/0044-7447-33.7.469 |
op_relation |
doi:10.1579/0044-7447-33.7.469 |
op_rights |
All rights reserved. |
op_doi |
https://doi.org/10.1579/0044-7447-33.7.469 |
container_title |
AMBIO: A Journal of the Human Environment |
container_volume |
33 |
container_issue |
7 |
container_start_page |
469 |
op_container_end_page |
473 |
_version_ |
1772810048796360704 |