No evidence for interspecific interactions between plants in the first stage of succession on coastal dunes in subarctic Quebec, Canada
Coastal dunes are very dynamic systems, particularly where the coast is rising as a result of isostatic rebound. In those environments, succession proceeds from plants highly tolerant to sand accumulation, salt spray, and low nutrient availability to less disturbance-tolerant and stress-tolerant, mo...
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1997
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Online Access: | http://dx.doi.org/10.1139/b97-100 http://www.nrcresearchpress.com/doi/pdf/10.1139/b97-100 |
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crcansciencepubl:10.1139/b97-100 2024-06-23T07:53:33+00:00 No evidence for interspecific interactions between plants in the first stage of succession on coastal dunes in subarctic Quebec, Canada Houle, Gilles 1997 http://dx.doi.org/10.1139/b97-100 http://www.nrcresearchpress.com/doi/pdf/10.1139/b97-100 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Canadian Journal of Botany volume 75, issue 6, page 902-915 ISSN 0008-4026 journal-article 1997 crcansciencepubl https://doi.org/10.1139/b97-100 2024-06-13T04:10:50Z Coastal dunes are very dynamic systems, particularly where the coast is rising as a result of isostatic rebound. In those environments, succession proceeds from plants highly tolerant to sand accumulation, salt spray, and low nutrient availability to less disturbance-tolerant and stress-tolerant, more nutrient-demanding, and supposedly more competitive species. In the subarctic, the regional climate exacerbates the stresses imposed by local abiotic conditions on the dunes. I hypothesized that facilitation would be particularly significant on the foredune of subarctic coastal dune systems because of intense stresses (local and regional) and frequent disturbance in the form of sand deposition. Belowground and aboveground plant biomass was sampled at three different periods during the 1990 growing season along transects perpendicular to the shoreline on a coastal dune system in subarctic Quebec (Canada). The three herbaceous perennials found on the foredune (Honckenya peploides, Elymus mollis, and Lathyrus japonicus) were segregated in time during the growing season and in space along the topographical gradient. The biomass of Honckenya, the first species encountered as one progresses from the upper part of the beach towards the foredune ridge, was not correlated to substrate physicochemistry. However, the biomass of Elymus and that of Lathyrus, the next two species to appear along the flank of the foredune, were related to pH, Mg, Na, and Cl (negatively), and to P and Ca (positively). These results suggest variable linkages between substrate physicochemistry and plant species along the foredune, possibly in relation to species-specific tolerance for abiotic conditions and requirements for substrate resources or to microscale influence of the plants themselves on substrate physicochemistry. Removal experiments carried out over 2 years revealed only one significant unidirectional interaction between these three species along the topographical gradient, and little plant control over abiotic variables (e.g., soil ... Article in Journal/Newspaper Honckenya peploides Subarctic Canadian Science Publishing Canada Canadian Journal of Botany 75 6 902 915 |
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Open Polar |
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Canadian Science Publishing |
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crcansciencepubl |
language |
English |
description |
Coastal dunes are very dynamic systems, particularly where the coast is rising as a result of isostatic rebound. In those environments, succession proceeds from plants highly tolerant to sand accumulation, salt spray, and low nutrient availability to less disturbance-tolerant and stress-tolerant, more nutrient-demanding, and supposedly more competitive species. In the subarctic, the regional climate exacerbates the stresses imposed by local abiotic conditions on the dunes. I hypothesized that facilitation would be particularly significant on the foredune of subarctic coastal dune systems because of intense stresses (local and regional) and frequent disturbance in the form of sand deposition. Belowground and aboveground plant biomass was sampled at three different periods during the 1990 growing season along transects perpendicular to the shoreline on a coastal dune system in subarctic Quebec (Canada). The three herbaceous perennials found on the foredune (Honckenya peploides, Elymus mollis, and Lathyrus japonicus) were segregated in time during the growing season and in space along the topographical gradient. The biomass of Honckenya, the first species encountered as one progresses from the upper part of the beach towards the foredune ridge, was not correlated to substrate physicochemistry. However, the biomass of Elymus and that of Lathyrus, the next two species to appear along the flank of the foredune, were related to pH, Mg, Na, and Cl (negatively), and to P and Ca (positively). These results suggest variable linkages between substrate physicochemistry and plant species along the foredune, possibly in relation to species-specific tolerance for abiotic conditions and requirements for substrate resources or to microscale influence of the plants themselves on substrate physicochemistry. Removal experiments carried out over 2 years revealed only one significant unidirectional interaction between these three species along the topographical gradient, and little plant control over abiotic variables (e.g., soil ... |
format |
Article in Journal/Newspaper |
author |
Houle, Gilles |
spellingShingle |
Houle, Gilles No evidence for interspecific interactions between plants in the first stage of succession on coastal dunes in subarctic Quebec, Canada |
author_facet |
Houle, Gilles |
author_sort |
Houle, Gilles |
title |
No evidence for interspecific interactions between plants in the first stage of succession on coastal dunes in subarctic Quebec, Canada |
title_short |
No evidence for interspecific interactions between plants in the first stage of succession on coastal dunes in subarctic Quebec, Canada |
title_full |
No evidence for interspecific interactions between plants in the first stage of succession on coastal dunes in subarctic Quebec, Canada |
title_fullStr |
No evidence for interspecific interactions between plants in the first stage of succession on coastal dunes in subarctic Quebec, Canada |
title_full_unstemmed |
No evidence for interspecific interactions between plants in the first stage of succession on coastal dunes in subarctic Quebec, Canada |
title_sort |
no evidence for interspecific interactions between plants in the first stage of succession on coastal dunes in subarctic quebec, canada |
publisher |
Canadian Science Publishing |
publishDate |
1997 |
url |
http://dx.doi.org/10.1139/b97-100 http://www.nrcresearchpress.com/doi/pdf/10.1139/b97-100 |
geographic |
Canada |
geographic_facet |
Canada |
genre |
Honckenya peploides Subarctic |
genre_facet |
Honckenya peploides Subarctic |
op_source |
Canadian Journal of Botany volume 75, issue 6, page 902-915 ISSN 0008-4026 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/b97-100 |
container_title |
Canadian Journal of Botany |
container_volume |
75 |
container_issue |
6 |
container_start_page |
902 |
op_container_end_page |
915 |
_version_ |
1802645269813133312 |