Longevity and persistence of alder west of the tree line on the Seward Peninsula, Alaska
We measured alder plants (Alnus viridis ssp. crispa (Aiton) Turrill) in stands on 11 sites on the Seward Peninsula. Of the plants measured in detail, 70% had multiple stems (largest difference in stem age on a plant was 67 years), 54% had small epicormic shoots, and 59% had partially prostrate stems...
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Canadian Science Publishing
1985
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Online Access: | http://dx.doi.org/10.1139/b85-262 http://www.nrcresearchpress.com/doi/pdf/10.1139/b85-262 |
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crcansciencepubl:10.1139/b85-262 2023-12-17T10:49:58+01:00 Longevity and persistence of alder west of the tree line on the Seward Peninsula, Alaska Wilson, Brayton F. Patterson 111, William A. O'Keefe, John F. 1985 http://dx.doi.org/10.1139/b85-262 http://www.nrcresearchpress.com/doi/pdf/10.1139/b85-262 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Canadian Journal of Botany volume 63, issue 10, page 1870-1875 ISSN 0008-4026 Plant Science journal-article 1985 crcansciencepubl https://doi.org/10.1139/b85-262 2023-11-19T13:39:14Z We measured alder plants (Alnus viridis ssp. crispa (Aiton) Turrill) in stands on 11 sites on the Seward Peninsula. Of the plants measured in detail, 70% had multiple stems (largest difference in stem age on a plant was 67 years), 54% had small epicormic shoots, and 59% had partially prostrate stems that could layer. The oldest stems were 35–114 years on alpine tundra, 47–48 years on river cuts, 36 years on moist tundra, and 16–33 years on floodplain. This species appeared to be reproducing by means of seedlings on 8 of 11 sites. Alder pollen percentages in surface samples from seven small ponds were negatively correlated with distance to alder stands. Pollen and 14 C analysis of sediments from a pond near one sample stand showed that alder pollen percentages had decreased over the past 3600 years, but that alder had persisted in the area during this period. Estimates of potential plant age, dependent on assumptions about the production and survival of new stems, ranged from 100 years to unlimited age. The maximum age of stands is at least 100–200 years, but could be up to the 3600 years shown by a continuous pollen record and 14 C analysis. Article in Journal/Newspaper Seward Peninsula Tundra Alaska Canadian Science Publishing (via Crossref) Canadian Journal of Botany 63 10 1870 1875 |
institution |
Open Polar |
collection |
Canadian Science Publishing (via Crossref) |
op_collection_id |
crcansciencepubl |
language |
English |
topic |
Plant Science |
spellingShingle |
Plant Science Wilson, Brayton F. Patterson 111, William A. O'Keefe, John F. Longevity and persistence of alder west of the tree line on the Seward Peninsula, Alaska |
topic_facet |
Plant Science |
description |
We measured alder plants (Alnus viridis ssp. crispa (Aiton) Turrill) in stands on 11 sites on the Seward Peninsula. Of the plants measured in detail, 70% had multiple stems (largest difference in stem age on a plant was 67 years), 54% had small epicormic shoots, and 59% had partially prostrate stems that could layer. The oldest stems were 35–114 years on alpine tundra, 47–48 years on river cuts, 36 years on moist tundra, and 16–33 years on floodplain. This species appeared to be reproducing by means of seedlings on 8 of 11 sites. Alder pollen percentages in surface samples from seven small ponds were negatively correlated with distance to alder stands. Pollen and 14 C analysis of sediments from a pond near one sample stand showed that alder pollen percentages had decreased over the past 3600 years, but that alder had persisted in the area during this period. Estimates of potential plant age, dependent on assumptions about the production and survival of new stems, ranged from 100 years to unlimited age. The maximum age of stands is at least 100–200 years, but could be up to the 3600 years shown by a continuous pollen record and 14 C analysis. |
format |
Article in Journal/Newspaper |
author |
Wilson, Brayton F. Patterson 111, William A. O'Keefe, John F. |
author_facet |
Wilson, Brayton F. Patterson 111, William A. O'Keefe, John F. |
author_sort |
Wilson, Brayton F. |
title |
Longevity and persistence of alder west of the tree line on the Seward Peninsula, Alaska |
title_short |
Longevity and persistence of alder west of the tree line on the Seward Peninsula, Alaska |
title_full |
Longevity and persistence of alder west of the tree line on the Seward Peninsula, Alaska |
title_fullStr |
Longevity and persistence of alder west of the tree line on the Seward Peninsula, Alaska |
title_full_unstemmed |
Longevity and persistence of alder west of the tree line on the Seward Peninsula, Alaska |
title_sort |
longevity and persistence of alder west of the tree line on the seward peninsula, alaska |
publisher |
Canadian Science Publishing |
publishDate |
1985 |
url |
http://dx.doi.org/10.1139/b85-262 http://www.nrcresearchpress.com/doi/pdf/10.1139/b85-262 |
genre |
Seward Peninsula Tundra Alaska |
genre_facet |
Seward Peninsula Tundra Alaska |
op_source |
Canadian Journal of Botany volume 63, issue 10, page 1870-1875 ISSN 0008-4026 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/b85-262 |
container_title |
Canadian Journal of Botany |
container_volume |
63 |
container_issue |
10 |
container_start_page |
1870 |
op_container_end_page |
1875 |
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1785574604945752064 |