Tundra fire alters vegetation patterns more than the resultant thermokarst
Tundra fires are increasing in their frequencies and intensities due to global warming, which alter revegetation patterns through various pathways. To understand the effects of tundra fire and the resultant thermokarst on revegetation, vegetation and related environmental factors were compared betwe...
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fthokunivhus:oai:eprints.lib.hokudai.ac.jp:2115/73375 2023-05-15T18:01:58+02:00 Tundra fire alters vegetation patterns more than the resultant thermokarst Tsuyuzaki, Shiro Iwahana, Go Saito, Kazuyuki http://hdl.handle.net/2115/73375 https://doi.org/10.1007/s00300-017-2236-7 eng eng Springer http://hdl.handle.net/2115/73375 Polar biology, 41(4): 753-761 http://dx.doi.org/10.1007/s00300-017-2236-7 The final publication is available at link.springer.com Polygonal ground Landscape patterns Thawing Thermokarst Tundra fire 450 article (author version) fthokunivhus https://doi.org/10.1007/s00300-017-2236-7 2022-11-18T01:04:51Z Tundra fires are increasing in their frequencies and intensities due to global warming, which alter revegetation patterns through various pathways. To understand the effects of tundra fire and the resultant thermokarst on revegetation, vegetation and related environmental factors were compared between burned and unburned areas of Seward Peninsula, Alaska, using a total of 140 plots, 50 cm x 50 cm each. The area was burned in 2002 and surveyed in 2013. Seven vegetation types were classified by a cluster analysis and were categorized along a fire-severity gradient from none to severe fire intensity. The species richness and diversity were higher in intermediately disturbed plots. Severe fire allowed the immigration of fire-favored species (e.g., Epilobium angustifolium, Ceratodon purpureus) and decreased or did not change the species diversity, indicating that species replacement occurred within the severely burned site. Although thermokarsts (ground subsidence) broadly occurred on burned sites, due to thawing, the subsidence weakly influenced vegetation patterns. These results suggest that the fire directly altered the species composition at a landscape scale between the burned and unburned sites and it indirectly altered the plant cover and diversity through the differential modification, such as thermokarst, at a small scale within the burned site. Article in Journal/Newspaper Polar Biology Seward Peninsula Thermokarst Tundra Alaska Hokkaido University Collection of Scholarly and Academic Papers (HUSCAP) Polar Biology 41 4 753 761 |
institution |
Open Polar |
collection |
Hokkaido University Collection of Scholarly and Academic Papers (HUSCAP) |
op_collection_id |
fthokunivhus |
language |
English |
topic |
Polygonal ground Landscape patterns Thawing Thermokarst Tundra fire 450 |
spellingShingle |
Polygonal ground Landscape patterns Thawing Thermokarst Tundra fire 450 Tsuyuzaki, Shiro Iwahana, Go Saito, Kazuyuki Tundra fire alters vegetation patterns more than the resultant thermokarst |
topic_facet |
Polygonal ground Landscape patterns Thawing Thermokarst Tundra fire 450 |
description |
Tundra fires are increasing in their frequencies and intensities due to global warming, which alter revegetation patterns through various pathways. To understand the effects of tundra fire and the resultant thermokarst on revegetation, vegetation and related environmental factors were compared between burned and unburned areas of Seward Peninsula, Alaska, using a total of 140 plots, 50 cm x 50 cm each. The area was burned in 2002 and surveyed in 2013. Seven vegetation types were classified by a cluster analysis and were categorized along a fire-severity gradient from none to severe fire intensity. The species richness and diversity were higher in intermediately disturbed plots. Severe fire allowed the immigration of fire-favored species (e.g., Epilobium angustifolium, Ceratodon purpureus) and decreased or did not change the species diversity, indicating that species replacement occurred within the severely burned site. Although thermokarsts (ground subsidence) broadly occurred on burned sites, due to thawing, the subsidence weakly influenced vegetation patterns. These results suggest that the fire directly altered the species composition at a landscape scale between the burned and unburned sites and it indirectly altered the plant cover and diversity through the differential modification, such as thermokarst, at a small scale within the burned site. |
format |
Article in Journal/Newspaper |
author |
Tsuyuzaki, Shiro Iwahana, Go Saito, Kazuyuki |
author_facet |
Tsuyuzaki, Shiro Iwahana, Go Saito, Kazuyuki |
author_sort |
Tsuyuzaki, Shiro |
title |
Tundra fire alters vegetation patterns more than the resultant thermokarst |
title_short |
Tundra fire alters vegetation patterns more than the resultant thermokarst |
title_full |
Tundra fire alters vegetation patterns more than the resultant thermokarst |
title_fullStr |
Tundra fire alters vegetation patterns more than the resultant thermokarst |
title_full_unstemmed |
Tundra fire alters vegetation patterns more than the resultant thermokarst |
title_sort |
tundra fire alters vegetation patterns more than the resultant thermokarst |
publisher |
Springer |
url |
http://hdl.handle.net/2115/73375 https://doi.org/10.1007/s00300-017-2236-7 |
genre |
Polar Biology Seward Peninsula Thermokarst Tundra Alaska |
genre_facet |
Polar Biology Seward Peninsula Thermokarst Tundra Alaska |
op_relation |
http://hdl.handle.net/2115/73375 Polar biology, 41(4): 753-761 http://dx.doi.org/10.1007/s00300-017-2236-7 |
op_rights |
The final publication is available at link.springer.com |
op_doi |
https://doi.org/10.1007/s00300-017-2236-7 |
container_title |
Polar Biology |
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41 |
container_issue |
4 |
container_start_page |
753 |
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761 |
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1766171580573941760 |