The Chic-Choc Mountains are the last southern refuge for Arctic lichens in eastern North America
Endemic and disjunct populations of vascular plants and cryptogams occurring in the Chic-Choc Mountains on the Gaspé Peninsula in eastern Québec, Canada, have been attracting botanists for over a century. Although controversial, these ancient mountains have been hypothesized to have been nunataks du...
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2016
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ftdoajarticles:oai:doaj.org/article:99e434ecd3d243ccafb1782f0f04ff65 2023-05-15T14:23:51+02:00 The Chic-Choc Mountains are the last southern refuge for Arctic lichens in eastern North America Richard Troy McMullin Briann C. Dorin 2016-12-01T00:00:00Z https://doi.org/10.1139/as-2015-0024 https://doaj.org/article/99e434ecd3d243ccafb1782f0f04ff65 EN FR eng fre Canadian Science Publishing https://cdnsciencepub.com/doi/10.1139/as-2015-0024 https://doaj.org/toc/2368-7460 doi:10.1139/as-2015-0024 2368-7460 https://doaj.org/article/99e434ecd3d243ccafb1782f0f04ff65 Arctic Science, Vol 2, Iss 4, Pp 183-193 (2016) biogeography alpine climate change protected areas nunataks biogéographie Environmental sciences GE1-350 Environmental engineering TA170-171 article 2016 ftdoajarticles https://doi.org/10.1139/as-2015-0024 2022-12-30T21:31:39Z Endemic and disjunct populations of vascular plants and cryptogams occurring in the Chic-Choc Mountains on the Gaspé Peninsula in eastern Québec, Canada, have been attracting botanists for over a century. Although controversial, these ancient mountains have been hypothesized to have been nunataks during the Wisconsin glaciation in part because they contain vascular plants that are not known to colonize nearby mountains with similar environments that were not thought to be nunataks. To determine whether there are lichen species that have the same pattern as the vascular plants, we examined the North American distribution of all the approximately 600 lichens known from the Chic-Chocs. Fifteen Arctic-alpine species were found to reach the edge of their southeastern North American range in the Chic-Chocs. Six of these species are not known to occur again for over 1000 km to the north. These results provide an additional layer of biogeographic knowledge about the unusual flora of the Chic-Chocs and lend some support to the hypothesis that the Chic-Chocs might have been nunataks during the last glacial period. Any Arctic-alpine species occurring in the Chic-Chocs are good candidates for monitoring the effects of climate change, but the 15 lichen species that reach their southeastern limit in this range might be the most vulnerable. Article in Journal/Newspaper Arctic Arctic Climate change Directory of Open Access Journals: DOAJ Articles Arctic Canada Arctic Science 2 4 183 193 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English French |
topic |
biogeography alpine climate change protected areas nunataks biogéographie Environmental sciences GE1-350 Environmental engineering TA170-171 |
spellingShingle |
biogeography alpine climate change protected areas nunataks biogéographie Environmental sciences GE1-350 Environmental engineering TA170-171 Richard Troy McMullin Briann C. Dorin The Chic-Choc Mountains are the last southern refuge for Arctic lichens in eastern North America |
topic_facet |
biogeography alpine climate change protected areas nunataks biogéographie Environmental sciences GE1-350 Environmental engineering TA170-171 |
description |
Endemic and disjunct populations of vascular plants and cryptogams occurring in the Chic-Choc Mountains on the Gaspé Peninsula in eastern Québec, Canada, have been attracting botanists for over a century. Although controversial, these ancient mountains have been hypothesized to have been nunataks during the Wisconsin glaciation in part because they contain vascular plants that are not known to colonize nearby mountains with similar environments that were not thought to be nunataks. To determine whether there are lichen species that have the same pattern as the vascular plants, we examined the North American distribution of all the approximately 600 lichens known from the Chic-Chocs. Fifteen Arctic-alpine species were found to reach the edge of their southeastern North American range in the Chic-Chocs. Six of these species are not known to occur again for over 1000 km to the north. These results provide an additional layer of biogeographic knowledge about the unusual flora of the Chic-Chocs and lend some support to the hypothesis that the Chic-Chocs might have been nunataks during the last glacial period. Any Arctic-alpine species occurring in the Chic-Chocs are good candidates for monitoring the effects of climate change, but the 15 lichen species that reach their southeastern limit in this range might be the most vulnerable. |
format |
Article in Journal/Newspaper |
author |
Richard Troy McMullin Briann C. Dorin |
author_facet |
Richard Troy McMullin Briann C. Dorin |
author_sort |
Richard Troy McMullin |
title |
The Chic-Choc Mountains are the last southern refuge for Arctic lichens in eastern North America |
title_short |
The Chic-Choc Mountains are the last southern refuge for Arctic lichens in eastern North America |
title_full |
The Chic-Choc Mountains are the last southern refuge for Arctic lichens in eastern North America |
title_fullStr |
The Chic-Choc Mountains are the last southern refuge for Arctic lichens in eastern North America |
title_full_unstemmed |
The Chic-Choc Mountains are the last southern refuge for Arctic lichens in eastern North America |
title_sort |
chic-choc mountains are the last southern refuge for arctic lichens in eastern north america |
publisher |
Canadian Science Publishing |
publishDate |
2016 |
url |
https://doi.org/10.1139/as-2015-0024 https://doaj.org/article/99e434ecd3d243ccafb1782f0f04ff65 |
geographic |
Arctic Canada |
geographic_facet |
Arctic Canada |
genre |
Arctic Arctic Climate change |
genre_facet |
Arctic Arctic Climate change |
op_source |
Arctic Science, Vol 2, Iss 4, Pp 183-193 (2016) |
op_relation |
https://cdnsciencepub.com/doi/10.1139/as-2015-0024 https://doaj.org/toc/2368-7460 doi:10.1139/as-2015-0024 2368-7460 https://doaj.org/article/99e434ecd3d243ccafb1782f0f04ff65 |
op_doi |
https://doi.org/10.1139/as-2015-0024 |
container_title |
Arctic Science |
container_volume |
2 |
container_issue |
4 |
container_start_page |
183 |
op_container_end_page |
193 |
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1766296327459700736 |