Directional succession and species-specific patterns observed in repeat study of vascular plants at three glacier foreland chronosequences in the Canadian High Arctic
This paper presents the first repeat study of glacier foreland chronosequences conducted in the Canadian High Arctic. Vascular plant species at three forelands on Ellesmere Island, Nunavut first surveyed in 1995 were resurveyed 21 years later to (1) test the original hypothesis that succession on th...
Published in: | Arctic Science |
---|---|
Main Authors: | , |
Format: | Article in Journal/Newspaper |
Language: | English French |
Published: |
Canadian Science Publishing
2024
|
Subjects: | |
Online Access: | https://doi.org/10.1139/AS-2023-0013 https://doaj.org/article/deaf200a2d834df4a82c4a188f0546e1 |
id |
ftdoajarticles:oai:doaj.org/article:deaf200a2d834df4a82c4a188f0546e1 |
---|---|
record_format |
openpolar |
spelling |
ftdoajarticles:oai:doaj.org/article:deaf200a2d834df4a82c4a188f0546e1 2024-09-15T17:50:15+00:00 Directional succession and species-specific patterns observed in repeat study of vascular plants at three glacier foreland chronosequences in the Canadian High Arctic Katriina O'Kane Greg H.R. Henry 2024-06-01T00:00:00Z https://doi.org/10.1139/AS-2023-0013 https://doaj.org/article/deaf200a2d834df4a82c4a188f0546e1 EN FR eng fre Canadian Science Publishing https://cdnsciencepub.com/doi/10.1139/AS-2023-0013 https://doaj.org/toc/2368-7460 doi:10.1139/AS-2023-0013 2368-7460 https://doaj.org/article/deaf200a2d834df4a82c4a188f0546e1 Arctic Science (2024) Environmental sciences GE1-350 Environmental engineering TA170-171 article 2024 ftdoajarticles https://doi.org/10.1139/AS-2023-0013 2024-08-05T17:49:07Z This paper presents the first repeat study of glacier foreland chronosequences conducted in the Canadian High Arctic. Vascular plant species at three forelands on Ellesmere Island, Nunavut first surveyed in 1995 were resurveyed 21 years later to (1) test the original hypothesis that succession on these forelands was directional, and (2) investigate the use of the chronosequence method in High Arctic succession studies. Forelands were surveyed using percent cover estimates or presence/absence counts. Indicator species analysis and rates of change were used to quantify shifts. Total plant cover and species richness increased on younger terrain. Rates of peak cover and first appearance advance varied greatly between species and forelands, but were generally faster for graminoid and forb species than shrub species. We observed a pattern of directional succession at all three forelands, supporting the original hypothesis. However, species-specific patterns and rates of change acted to create assemblages that differed between 1995 and 2016, different successional trajectories were observed between the three forelands, and the first occurrence of most species was further from the glacier margin in 2016 compared to 1995. These results demonstrate the importance of repeat studies over time and replication over space to confirm observations in chronosequence studies. Article in Journal/Newspaper Arctic Ellesmere Island Nunavut Directory of Open Access Journals: DOAJ Articles Arctic Science |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English French |
topic |
Environmental sciences GE1-350 Environmental engineering TA170-171 |
spellingShingle |
Environmental sciences GE1-350 Environmental engineering TA170-171 Katriina O'Kane Greg H.R. Henry Directional succession and species-specific patterns observed in repeat study of vascular plants at three glacier foreland chronosequences in the Canadian High Arctic |
topic_facet |
Environmental sciences GE1-350 Environmental engineering TA170-171 |
description |
This paper presents the first repeat study of glacier foreland chronosequences conducted in the Canadian High Arctic. Vascular plant species at three forelands on Ellesmere Island, Nunavut first surveyed in 1995 were resurveyed 21 years later to (1) test the original hypothesis that succession on these forelands was directional, and (2) investigate the use of the chronosequence method in High Arctic succession studies. Forelands were surveyed using percent cover estimates or presence/absence counts. Indicator species analysis and rates of change were used to quantify shifts. Total plant cover and species richness increased on younger terrain. Rates of peak cover and first appearance advance varied greatly between species and forelands, but were generally faster for graminoid and forb species than shrub species. We observed a pattern of directional succession at all three forelands, supporting the original hypothesis. However, species-specific patterns and rates of change acted to create assemblages that differed between 1995 and 2016, different successional trajectories were observed between the three forelands, and the first occurrence of most species was further from the glacier margin in 2016 compared to 1995. These results demonstrate the importance of repeat studies over time and replication over space to confirm observations in chronosequence studies. |
format |
Article in Journal/Newspaper |
author |
Katriina O'Kane Greg H.R. Henry |
author_facet |
Katriina O'Kane Greg H.R. Henry |
author_sort |
Katriina O'Kane |
title |
Directional succession and species-specific patterns observed in repeat study of vascular plants at three glacier foreland chronosequences in the Canadian High Arctic |
title_short |
Directional succession and species-specific patterns observed in repeat study of vascular plants at three glacier foreland chronosequences in the Canadian High Arctic |
title_full |
Directional succession and species-specific patterns observed in repeat study of vascular plants at three glacier foreland chronosequences in the Canadian High Arctic |
title_fullStr |
Directional succession and species-specific patterns observed in repeat study of vascular plants at three glacier foreland chronosequences in the Canadian High Arctic |
title_full_unstemmed |
Directional succession and species-specific patterns observed in repeat study of vascular plants at three glacier foreland chronosequences in the Canadian High Arctic |
title_sort |
directional succession and species-specific patterns observed in repeat study of vascular plants at three glacier foreland chronosequences in the canadian high arctic |
publisher |
Canadian Science Publishing |
publishDate |
2024 |
url |
https://doi.org/10.1139/AS-2023-0013 https://doaj.org/article/deaf200a2d834df4a82c4a188f0546e1 |
genre |
Arctic Ellesmere Island Nunavut |
genre_facet |
Arctic Ellesmere Island Nunavut |
op_source |
Arctic Science (2024) |
op_relation |
https://cdnsciencepub.com/doi/10.1139/AS-2023-0013 https://doaj.org/toc/2368-7460 doi:10.1139/AS-2023-0013 2368-7460 https://doaj.org/article/deaf200a2d834df4a82c4a188f0546e1 |
op_doi |
https://doi.org/10.1139/AS-2023-0013 |
container_title |
Arctic Science |
_version_ |
1810292092499394560 |