The patterning of plant communities and edaphic factors along a high arctic coastline: implications for succession
Isostatic rebound and the periodic development of ice-push beach ridges have created topography suitable for development of biologically rich polar oases along the northeast coast of Devon Island, Canada. Distinct patterning of both plant communities and edaphic factors from coastal shoreline areas...
Published in: | Canadian Journal of Botany |
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Format: | Article in Journal/Newspaper |
Language: | English |
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Canadian Science Publishing
1994
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Online Access: | http://dx.doi.org/10.1139/b94-134 http://www.nrcresearchpress.com/doi/pdf/10.1139/b94-134 |
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crcansciencepubl:10.1139/b94-134 2024-09-15T18:03:39+00:00 The patterning of plant communities and edaphic factors along a high arctic coastline: implications for succession Bliss, L. C. Gold, W. G. 1994 http://dx.doi.org/10.1139/b94-134 http://www.nrcresearchpress.com/doi/pdf/10.1139/b94-134 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Canadian Journal of Botany volume 72, issue 8, page 1095-1107 ISSN 0008-4026 journal-article 1994 crcansciencepubl https://doi.org/10.1139/b94-134 2024-07-25T04:10:03Z Isostatic rebound and the periodic development of ice-push beach ridges have created topography suitable for development of biologically rich polar oases along the northeast coast of Devon Island, Canada. Distinct patterning of both plant communities and edaphic factors from coastal shoreline areas inland indicate primary succession with a directional species replacement At Rocky Point (emergent < 2000 BP) biological development along the shore is initiated by marine algae that are invaded by cyanobacteria. These organic mats are colonized by Puccinellia on the shoreline of these brackish lagoons. Where the topography grades upslope, via concave areas, the toposequence from Puccinellia proceeds through Dupontia → Carex → Salix hummocks → cushion plant–lichen communities. In drier, convex areas Puccinellia proceeds through rosette-herb hummocks → cushion plant–lichen communities as a toposequence. Reduced levels of salinity and of nitrogen fixation upslope (from the shore) along with increased depth of organic soils and ability of soils to hold more soil water appear important in the conversion of Puccinellia- to Dupontia- to Carex-dominated meadows. This is the major chronosequence at Rocky Point and it is these Carex meadows that occupy most of the wetlands of Truelove Lowland. The Salix hummocks and cushion plant–lichen communities of all drier habitats resemble communities of similar species composition on the beach ridges of the lowland. Key words: arctic Canada, succession, plant communities, soil factors, polar oasis. Article in Journal/Newspaper Devon Island Canadian Science Publishing Canadian Journal of Botany 72 8 1095 1107 |
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Open Polar |
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Canadian Science Publishing |
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crcansciencepubl |
language |
English |
description |
Isostatic rebound and the periodic development of ice-push beach ridges have created topography suitable for development of biologically rich polar oases along the northeast coast of Devon Island, Canada. Distinct patterning of both plant communities and edaphic factors from coastal shoreline areas inland indicate primary succession with a directional species replacement At Rocky Point (emergent < 2000 BP) biological development along the shore is initiated by marine algae that are invaded by cyanobacteria. These organic mats are colonized by Puccinellia on the shoreline of these brackish lagoons. Where the topography grades upslope, via concave areas, the toposequence from Puccinellia proceeds through Dupontia → Carex → Salix hummocks → cushion plant–lichen communities. In drier, convex areas Puccinellia proceeds through rosette-herb hummocks → cushion plant–lichen communities as a toposequence. Reduced levels of salinity and of nitrogen fixation upslope (from the shore) along with increased depth of organic soils and ability of soils to hold more soil water appear important in the conversion of Puccinellia- to Dupontia- to Carex-dominated meadows. This is the major chronosequence at Rocky Point and it is these Carex meadows that occupy most of the wetlands of Truelove Lowland. The Salix hummocks and cushion plant–lichen communities of all drier habitats resemble communities of similar species composition on the beach ridges of the lowland. Key words: arctic Canada, succession, plant communities, soil factors, polar oasis. |
format |
Article in Journal/Newspaper |
author |
Bliss, L. C. Gold, W. G. |
spellingShingle |
Bliss, L. C. Gold, W. G. The patterning of plant communities and edaphic factors along a high arctic coastline: implications for succession |
author_facet |
Bliss, L. C. Gold, W. G. |
author_sort |
Bliss, L. C. |
title |
The patterning of plant communities and edaphic factors along a high arctic coastline: implications for succession |
title_short |
The patterning of plant communities and edaphic factors along a high arctic coastline: implications for succession |
title_full |
The patterning of plant communities and edaphic factors along a high arctic coastline: implications for succession |
title_fullStr |
The patterning of plant communities and edaphic factors along a high arctic coastline: implications for succession |
title_full_unstemmed |
The patterning of plant communities and edaphic factors along a high arctic coastline: implications for succession |
title_sort |
patterning of plant communities and edaphic factors along a high arctic coastline: implications for succession |
publisher |
Canadian Science Publishing |
publishDate |
1994 |
url |
http://dx.doi.org/10.1139/b94-134 http://www.nrcresearchpress.com/doi/pdf/10.1139/b94-134 |
genre |
Devon Island |
genre_facet |
Devon Island |
op_source |
Canadian Journal of Botany volume 72, issue 8, page 1095-1107 ISSN 0008-4026 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/b94-134 |
container_title |
Canadian Journal of Botany |
container_volume |
72 |
container_issue |
8 |
container_start_page |
1095 |
op_container_end_page |
1107 |
_version_ |
1810441136175579136 |