Persistent effects of a discrete warming event on a polar desert ecosystem
Abstract A discrete warming event (December 21, 2001–January 12, 2002) in the McMurdo Dry Valleys, Antarctica, enhanced glacier melt, stream flow, and melting of permafrost. Effects of this warming included a rapid rise in lake levels and widespread increases in soil water availability resulting fro...
Published in: | Global Change Biology |
---|---|
Main Authors: | , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Wiley
2008
|
Subjects: | |
Online Access: | http://dx.doi.org/10.1111/j.1365-2486.2008.01641.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1365-2486.2008.01641.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1365-2486.2008.01641.x |
id |
crwiley:10.1111/j.1365-2486.2008.01641.x |
---|---|
record_format |
openpolar |
spelling |
crwiley:10.1111/j.1365-2486.2008.01641.x 2024-05-19T07:30:22+00:00 Persistent effects of a discrete warming event on a polar desert ecosystem BARRETT, J. E. VIRGINIA, R. A. WALL, D. H. DORAN, P. T. FOUNTAIN, A. G. WELCH, K. A. LYONS, W. B. 2008 http://dx.doi.org/10.1111/j.1365-2486.2008.01641.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1365-2486.2008.01641.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1365-2486.2008.01641.x en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Global Change Biology volume 14, issue 10, page 2249-2261 ISSN 1354-1013 1365-2486 General Environmental Science Ecology Environmental Chemistry Global and Planetary Change journal-article 2008 crwiley https://doi.org/10.1111/j.1365-2486.2008.01641.x 2024-04-22T07:33:34Z Abstract A discrete warming event (December 21, 2001–January 12, 2002) in the McMurdo Dry Valleys, Antarctica, enhanced glacier melt, stream flow, and melting of permafrost. Effects of this warming included a rapid rise in lake levels and widespread increases in soil water availability resulting from melting of subsurface ice. These increases in liquid water offset hydrologic responses to a cooling trend experienced over the previous decade and altered ecosystem properties in both aquatic and terrestrial ecosystems. Here, we present hydrological and meteorological data from the McMurdo Dry Valleys Long Term Ecological Research project to examine the influence of a discrete climate event (warming of >2 °C) on terrestrial environments and soil biotic communities. Increases in soil moisture following this event stimulated populations of a subordinate soil invertebrate species ( Eudorylaimus antarcticus , Nematoda). The pulse of melt‐water had significant influences on Taylor Valley ecosystems that persisted for several years, and illustrates that the importance of discrete climate events, long recognized in hot deserts, are also significant drivers of soil and aquatic ecosystems in polar deserts. Thus, predictions of Antarctic ecosystem responses to climate change which focus on linear temperature trends may miss the potentially significant influence of infrequent climate events on hydrology and linked ecological processes. Article in Journal/Newspaper Antarc* Antarctic Antarctica antarcticus Eudorylaimus antarcticus Ice McMurdo Dry Valleys permafrost polar desert Wiley Online Library Global Change Biology 14 10 2249 2261 |
institution |
Open Polar |
collection |
Wiley Online Library |
op_collection_id |
crwiley |
language |
English |
topic |
General Environmental Science Ecology Environmental Chemistry Global and Planetary Change |
spellingShingle |
General Environmental Science Ecology Environmental Chemistry Global and Planetary Change BARRETT, J. E. VIRGINIA, R. A. WALL, D. H. DORAN, P. T. FOUNTAIN, A. G. WELCH, K. A. LYONS, W. B. Persistent effects of a discrete warming event on a polar desert ecosystem |
topic_facet |
General Environmental Science Ecology Environmental Chemistry Global and Planetary Change |
description |
Abstract A discrete warming event (December 21, 2001–January 12, 2002) in the McMurdo Dry Valleys, Antarctica, enhanced glacier melt, stream flow, and melting of permafrost. Effects of this warming included a rapid rise in lake levels and widespread increases in soil water availability resulting from melting of subsurface ice. These increases in liquid water offset hydrologic responses to a cooling trend experienced over the previous decade and altered ecosystem properties in both aquatic and terrestrial ecosystems. Here, we present hydrological and meteorological data from the McMurdo Dry Valleys Long Term Ecological Research project to examine the influence of a discrete climate event (warming of >2 °C) on terrestrial environments and soil biotic communities. Increases in soil moisture following this event stimulated populations of a subordinate soil invertebrate species ( Eudorylaimus antarcticus , Nematoda). The pulse of melt‐water had significant influences on Taylor Valley ecosystems that persisted for several years, and illustrates that the importance of discrete climate events, long recognized in hot deserts, are also significant drivers of soil and aquatic ecosystems in polar deserts. Thus, predictions of Antarctic ecosystem responses to climate change which focus on linear temperature trends may miss the potentially significant influence of infrequent climate events on hydrology and linked ecological processes. |
format |
Article in Journal/Newspaper |
author |
BARRETT, J. E. VIRGINIA, R. A. WALL, D. H. DORAN, P. T. FOUNTAIN, A. G. WELCH, K. A. LYONS, W. B. |
author_facet |
BARRETT, J. E. VIRGINIA, R. A. WALL, D. H. DORAN, P. T. FOUNTAIN, A. G. WELCH, K. A. LYONS, W. B. |
author_sort |
BARRETT, J. E. |
title |
Persistent effects of a discrete warming event on a polar desert ecosystem |
title_short |
Persistent effects of a discrete warming event on a polar desert ecosystem |
title_full |
Persistent effects of a discrete warming event on a polar desert ecosystem |
title_fullStr |
Persistent effects of a discrete warming event on a polar desert ecosystem |
title_full_unstemmed |
Persistent effects of a discrete warming event on a polar desert ecosystem |
title_sort |
persistent effects of a discrete warming event on a polar desert ecosystem |
publisher |
Wiley |
publishDate |
2008 |
url |
http://dx.doi.org/10.1111/j.1365-2486.2008.01641.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1365-2486.2008.01641.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1365-2486.2008.01641.x |
genre |
Antarc* Antarctic Antarctica antarcticus Eudorylaimus antarcticus Ice McMurdo Dry Valleys permafrost polar desert |
genre_facet |
Antarc* Antarctic Antarctica antarcticus Eudorylaimus antarcticus Ice McMurdo Dry Valleys permafrost polar desert |
op_source |
Global Change Biology volume 14, issue 10, page 2249-2261 ISSN 1354-1013 1365-2486 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/j.1365-2486.2008.01641.x |
container_title |
Global Change Biology |
container_volume |
14 |
container_issue |
10 |
container_start_page |
2249 |
op_container_end_page |
2261 |
_version_ |
1799485836317687808 |