Lodgepole pine (Pinus contorta Douglas ex Loudon) invasion in subarctic Iceland: evidence from a long-term study

The North American lodgepole pine (Pinus contorta) has been widely introduced globally and is now considered invasive in several countries. It was first planted in subarctic Iceland in the 1950s. Recently, the forestry sector has strongly promoted it as an attractive means of carbon capture to mitig...

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Main Authors: Pawel Wasowicz, Guðrún Óskarsdóttir, Þóra Ellen Þórhallsdóttir
Format: Article
Language:English
Published: Pensoft Publishers 2025-01-01
Series:NeoBiota
Online Access:https://neobiota.pensoft.net/article/134047/download/pdf/
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author Pawel Wasowicz
Guðrún Óskarsdóttir
Þóra Ellen Þórhallsdóttir
author_facet Pawel Wasowicz
Guðrún Óskarsdóttir
Þóra Ellen Þórhallsdóttir
author_sort Pawel Wasowicz
collection DOAJ
description The North American lodgepole pine (Pinus contorta) has been widely introduced globally and is now considered invasive in several countries. It was first planted in subarctic Iceland in the 1950s. Recently, the forestry sector has strongly promoted it as an attractive means of carbon capture to mitigate global climate change. It is now the most extensively planted tree species in Iceland. We describe the expansion of the lodgepole pine from a mid-20th-century plantation in Steinadalur, southeast Iceland, and decadal changes between 2010 and 2021. The extent of occurrence expanded nearly tenfold, with tree number and population density reflecting exponential growth patterns. The lodgepole pine colonised diverse habitats, including native birch woodlands and heathland, and was associated with significant reductions in vascular plant species richness and diversity. We conclude that lodgepole pine has the characteristics of an invasive species in Steinadalur and that this will also apply to many native ecosystems across most lowland regions of Iceland. Our study highlights the urgent need for management strategies to mitigate the long-term ecological impacts of lodgepole pine invasion in subarctic environments.
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id doaj-art-3d45b86abc524fa6ab0ee8b2ca25d896
institution Kabale University
issn 1314-2488
language English
publishDate 2025-01-01
publisher Pensoft Publishers
record_format Article
series NeoBiota
spelling doaj-art-3d45b86abc524fa6ab0ee8b2ca25d8962025-01-29T08:30:49ZengPensoft PublishersNeoBiota1314-24882025-01-0197476610.3897/neobiota.97.134047134047Lodgepole pine (Pinus contorta Douglas ex Loudon) invasion in subarctic Iceland: evidence from a long-term studyPawel Wasowicz0Guðrún Óskarsdóttir1Þóra Ellen Þórhallsdóttir2Natural Science Institute of IcelandEast Iceland Nature Research CentreUniversity of IcelandThe North American lodgepole pine (Pinus contorta) has been widely introduced globally and is now considered invasive in several countries. It was first planted in subarctic Iceland in the 1950s. Recently, the forestry sector has strongly promoted it as an attractive means of carbon capture to mitigate global climate change. It is now the most extensively planted tree species in Iceland. We describe the expansion of the lodgepole pine from a mid-20th-century plantation in Steinadalur, southeast Iceland, and decadal changes between 2010 and 2021. The extent of occurrence expanded nearly tenfold, with tree number and population density reflecting exponential growth patterns. The lodgepole pine colonised diverse habitats, including native birch woodlands and heathland, and was associated with significant reductions in vascular plant species richness and diversity. We conclude that lodgepole pine has the characteristics of an invasive species in Steinadalur and that this will also apply to many native ecosystems across most lowland regions of Iceland. Our study highlights the urgent need for management strategies to mitigate the long-term ecological impacts of lodgepole pine invasion in subarctic environments.https://neobiota.pensoft.net/article/134047/download/pdf/
spellingShingle Pawel Wasowicz
Guðrún Óskarsdóttir
Þóra Ellen Þórhallsdóttir
Lodgepole pine (Pinus contorta Douglas ex Loudon) invasion in subarctic Iceland: evidence from a long-term study
NeoBiota
title Lodgepole pine (Pinus contorta Douglas ex Loudon) invasion in subarctic Iceland: evidence from a long-term study
title_full Lodgepole pine (Pinus contorta Douglas ex Loudon) invasion in subarctic Iceland: evidence from a long-term study
title_fullStr Lodgepole pine (Pinus contorta Douglas ex Loudon) invasion in subarctic Iceland: evidence from a long-term study
title_full_unstemmed Lodgepole pine (Pinus contorta Douglas ex Loudon) invasion in subarctic Iceland: evidence from a long-term study
title_short Lodgepole pine (Pinus contorta Douglas ex Loudon) invasion in subarctic Iceland: evidence from a long-term study
title_sort lodgepole pine pinus contorta douglas ex loudon invasion in subarctic iceland evidence from a long term study
url https://neobiota.pensoft.net/article/134047/download/pdf/
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AT guðrunoskarsdottir lodgepolepinepinuscontortadouglasexloudoninvasioninsubarcticicelandevidencefromalongtermstudy
AT þoraellenþorhallsdottir lodgepolepinepinuscontortadouglasexloudoninvasioninsubarcticicelandevidencefromalongtermstudy