A preliminary report on the vegetation zonation of palsas in the Arctic National Wildlife Refuge, northern Alaska, USA
Abstract We measured vegetation patterns on palsas with reference to topographic characteristics on the Arctic National Wildlife Refuge, northern Alaska, to obtain benchmark data because of the changes expected from global warming. Vegetation was examined in 60 plots of area 50 cm × 50 cm by five en...
Published in: | Ecological Research |
---|---|
Main Authors: | , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Wiley
2007
|
Subjects: | |
Online Access: | http://dx.doi.org/10.1007/s11284-007-0437-1 http://www.springerlink.com/index/pdf/10.1007/s11284-007-0437-1 |
id |
crwiley:10.1007/s11284-007-0437-1 |
---|---|
record_format |
openpolar |
spelling |
crwiley:10.1007/s11284-007-0437-1 2024-06-02T08:01:36+00:00 A preliminary report on the vegetation zonation of palsas in the Arctic National Wildlife Refuge, northern Alaska, USA Tsuyuzaki, Shiro Sawada, Yuki Kushida, Keiji Fukuda, Masami 2007 http://dx.doi.org/10.1007/s11284-007-0437-1 http://www.springerlink.com/index/pdf/10.1007/s11284-007-0437-1 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Ecological Research volume 23, issue 4, page 787-793 ISSN 0912-3814 1440-1703 journal-article 2007 crwiley https://doi.org/10.1007/s11284-007-0437-1 2024-05-03T11:16:49Z Abstract We measured vegetation patterns on palsas with reference to topographic characteristics on the Arctic National Wildlife Refuge, northern Alaska, to obtain benchmark data because of the changes expected from global warming. Vegetation was examined in 60 plots of area 50 cm × 50 cm by five environmental factors: water content in the peat and duff layers, groundwater level, slope angle, depth to frozen surface, and presence of pellets and feces. Three palsas were selected for the survey, and the heights were fewer than 50 cm from the groundwater surface. Based on TWINSPAN and canonical correspondence analysis, we confirmed that clear patterns of vegetation zonation had developed within a 60‐cm difference in water level. Vaccinium vitis‐idaea occurred well on the top areas of palsas, while Carex aquatilis was established on the bottom areas. Sphagnum spp. were established on intermediate locations between V. vitis‐idaea and C. aquatilis . The prime determinant of the vegetation zonation seems to be water content in peat and duff layers rather than water level, although the five factors that we examined interact intricately with each other. Article in Journal/Newspaper Arctic Carex aquatilis Global warming palsas Alaska Wiley Online Library Arctic Duff ENVELOPE(-60.029,-60.029,-62.450,-62.450) Ecological Research 23 4 787 793 |
institution |
Open Polar |
collection |
Wiley Online Library |
op_collection_id |
crwiley |
language |
English |
description |
Abstract We measured vegetation patterns on palsas with reference to topographic characteristics on the Arctic National Wildlife Refuge, northern Alaska, to obtain benchmark data because of the changes expected from global warming. Vegetation was examined in 60 plots of area 50 cm × 50 cm by five environmental factors: water content in the peat and duff layers, groundwater level, slope angle, depth to frozen surface, and presence of pellets and feces. Three palsas were selected for the survey, and the heights were fewer than 50 cm from the groundwater surface. Based on TWINSPAN and canonical correspondence analysis, we confirmed that clear patterns of vegetation zonation had developed within a 60‐cm difference in water level. Vaccinium vitis‐idaea occurred well on the top areas of palsas, while Carex aquatilis was established on the bottom areas. Sphagnum spp. were established on intermediate locations between V. vitis‐idaea and C. aquatilis . The prime determinant of the vegetation zonation seems to be water content in peat and duff layers rather than water level, although the five factors that we examined interact intricately with each other. |
format |
Article in Journal/Newspaper |
author |
Tsuyuzaki, Shiro Sawada, Yuki Kushida, Keiji Fukuda, Masami |
spellingShingle |
Tsuyuzaki, Shiro Sawada, Yuki Kushida, Keiji Fukuda, Masami A preliminary report on the vegetation zonation of palsas in the Arctic National Wildlife Refuge, northern Alaska, USA |
author_facet |
Tsuyuzaki, Shiro Sawada, Yuki Kushida, Keiji Fukuda, Masami |
author_sort |
Tsuyuzaki, Shiro |
title |
A preliminary report on the vegetation zonation of palsas in the Arctic National Wildlife Refuge, northern Alaska, USA |
title_short |
A preliminary report on the vegetation zonation of palsas in the Arctic National Wildlife Refuge, northern Alaska, USA |
title_full |
A preliminary report on the vegetation zonation of palsas in the Arctic National Wildlife Refuge, northern Alaska, USA |
title_fullStr |
A preliminary report on the vegetation zonation of palsas in the Arctic National Wildlife Refuge, northern Alaska, USA |
title_full_unstemmed |
A preliminary report on the vegetation zonation of palsas in the Arctic National Wildlife Refuge, northern Alaska, USA |
title_sort |
preliminary report on the vegetation zonation of palsas in the arctic national wildlife refuge, northern alaska, usa |
publisher |
Wiley |
publishDate |
2007 |
url |
http://dx.doi.org/10.1007/s11284-007-0437-1 http://www.springerlink.com/index/pdf/10.1007/s11284-007-0437-1 |
long_lat |
ENVELOPE(-60.029,-60.029,-62.450,-62.450) |
geographic |
Arctic Duff |
geographic_facet |
Arctic Duff |
genre |
Arctic Carex aquatilis Global warming palsas Alaska |
genre_facet |
Arctic Carex aquatilis Global warming palsas Alaska |
op_source |
Ecological Research volume 23, issue 4, page 787-793 ISSN 0912-3814 1440-1703 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1007/s11284-007-0437-1 |
container_title |
Ecological Research |
container_volume |
23 |
container_issue |
4 |
container_start_page |
787 |
op_container_end_page |
793 |
_version_ |
1800746009058344960 |