Quantifying the seed bank of an invasive grass in the sub-Antarctic: seed density, depth, persistence and viability
A native to Europe, Poa annua now has a cosmopolitan distribution and is invasive in the sub-Antarctic. As a major weed in temperate turf, there has been considerable investment in research of the species, but little is known about its ecology in the sub-Antarctic, particularly its reproductive ecol...
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ftqueensland:oai:eprints.qut.edu.au:234142 2024-02-04T09:55:54+01:00 Quantifying the seed bank of an invasive grass in the sub-Antarctic: seed density, depth, persistence and viability Williams, Laura K. Kristiansen, Paul Sindel, Brian M. Wilson, Susan C. Shaw, Justine D. 2016-07-01 https://eprints.qut.edu.au/234142/ unknown Springer Netherlands https://rdcu.be/cSwP1 doi:10.1007/s10530-016-1154-x Williams, Laura K., Kristiansen, Paul, Sindel, Brian M., Wilson, Susan C., & Shaw, Justine D. (2016) Quantifying the seed bank of an invasive grass in the sub-Antarctic: seed density, depth, persistence and viability. Biological Invasions, 18(7), pp. 2093-2106. https://eprints.qut.edu.au/234142/ 2016 Springer International Publishing Switzerland. This work is covered by copyright. Unless the document is being made available under a Creative Commons Licence, you must assume that re-use is limited to personal use and that permission from the copyright owner must be obtained for all other uses. If the document is available under a Creative Commons License (or other specified license) then refer to the Licence for details of permitted re-use. It is a condition of access that users recognise and abide by the legal requirements associated with these rights. If you believe that this work infringes copyright please provide details by email to qut.copyright@qut.edu.au Biological Invasions Alien Macquarie Island Management Poa annua Seed burial Contribution to Journal 2016 ftqueensland https://doi.org/10.1007/s10530-016-1154-x 2024-01-09T00:09:21Z A native to Europe, Poa annua now has a cosmopolitan distribution and is invasive in the sub-Antarctic. As a major weed in temperate turf, there has been considerable investment in research of the species, but little is known about its ecology in the sub-Antarctic, particularly its reproductive ecology and population dynamics. We characterised the seed bank of this invasive species in the sub-Antarctic, by quantifying seed density, depth, persistence and viability. Poa annua seed bank density was correlated with elevation, animal disturbance, soil wetness and soil depth, but most strongly with P. annua cover. Seed bank density was greatest (132,000 seeds m −2 ) at low altitude coastal sites where P. annua is abundant but declined with increasing altitude to <2600 seeds m 2 . Seed was most abundant within the top 3 cm of the soil and decreased with soil depth. Seed viability declined over time, from an initial viability of 81 to <3 % after 2 years in the soil. This study demonstrates that whilst P. annua seed banks can be dense, the seed bank is shallow (<10 cm) with low persistence and viability. This first detailed study on the in situ seed bank profile of P. annua in the sub-Antarctic helps us understand the distribution and persistence of this invasive weed and is essential information for the development and implementation of future management. These findings, such as low seed bank persistence, challenge current thinking about eradication or control feasibility in the region. Article in Journal/Newspaper Antarc* Antarctic Macquarie Island Queensland University of Technology: QUT ePrints Antarctic Biological Invasions 18 7 2093 2106 |
institution |
Open Polar |
collection |
Queensland University of Technology: QUT ePrints |
op_collection_id |
ftqueensland |
language |
unknown |
topic |
Alien Macquarie Island Management Poa annua Seed burial |
spellingShingle |
Alien Macquarie Island Management Poa annua Seed burial Williams, Laura K. Kristiansen, Paul Sindel, Brian M. Wilson, Susan C. Shaw, Justine D. Quantifying the seed bank of an invasive grass in the sub-Antarctic: seed density, depth, persistence and viability |
topic_facet |
Alien Macquarie Island Management Poa annua Seed burial |
description |
A native to Europe, Poa annua now has a cosmopolitan distribution and is invasive in the sub-Antarctic. As a major weed in temperate turf, there has been considerable investment in research of the species, but little is known about its ecology in the sub-Antarctic, particularly its reproductive ecology and population dynamics. We characterised the seed bank of this invasive species in the sub-Antarctic, by quantifying seed density, depth, persistence and viability. Poa annua seed bank density was correlated with elevation, animal disturbance, soil wetness and soil depth, but most strongly with P. annua cover. Seed bank density was greatest (132,000 seeds m −2 ) at low altitude coastal sites where P. annua is abundant but declined with increasing altitude to <2600 seeds m 2 . Seed was most abundant within the top 3 cm of the soil and decreased with soil depth. Seed viability declined over time, from an initial viability of 81 to <3 % after 2 years in the soil. This study demonstrates that whilst P. annua seed banks can be dense, the seed bank is shallow (<10 cm) with low persistence and viability. This first detailed study on the in situ seed bank profile of P. annua in the sub-Antarctic helps us understand the distribution and persistence of this invasive weed and is essential information for the development and implementation of future management. These findings, such as low seed bank persistence, challenge current thinking about eradication or control feasibility in the region. |
format |
Article in Journal/Newspaper |
author |
Williams, Laura K. Kristiansen, Paul Sindel, Brian M. Wilson, Susan C. Shaw, Justine D. |
author_facet |
Williams, Laura K. Kristiansen, Paul Sindel, Brian M. Wilson, Susan C. Shaw, Justine D. |
author_sort |
Williams, Laura K. |
title |
Quantifying the seed bank of an invasive grass in the sub-Antarctic: seed density, depth, persistence and viability |
title_short |
Quantifying the seed bank of an invasive grass in the sub-Antarctic: seed density, depth, persistence and viability |
title_full |
Quantifying the seed bank of an invasive grass in the sub-Antarctic: seed density, depth, persistence and viability |
title_fullStr |
Quantifying the seed bank of an invasive grass in the sub-Antarctic: seed density, depth, persistence and viability |
title_full_unstemmed |
Quantifying the seed bank of an invasive grass in the sub-Antarctic: seed density, depth, persistence and viability |
title_sort |
quantifying the seed bank of an invasive grass in the sub-antarctic: seed density, depth, persistence and viability |
publisher |
Springer Netherlands |
publishDate |
2016 |
url |
https://eprints.qut.edu.au/234142/ |
geographic |
Antarctic |
geographic_facet |
Antarctic |
genre |
Antarc* Antarctic Macquarie Island |
genre_facet |
Antarc* Antarctic Macquarie Island |
op_source |
Biological Invasions |
op_relation |
https://rdcu.be/cSwP1 doi:10.1007/s10530-016-1154-x Williams, Laura K., Kristiansen, Paul, Sindel, Brian M., Wilson, Susan C., & Shaw, Justine D. (2016) Quantifying the seed bank of an invasive grass in the sub-Antarctic: seed density, depth, persistence and viability. Biological Invasions, 18(7), pp. 2093-2106. https://eprints.qut.edu.au/234142/ |
op_rights |
2016 Springer International Publishing Switzerland. This work is covered by copyright. Unless the document is being made available under a Creative Commons Licence, you must assume that re-use is limited to personal use and that permission from the copyright owner must be obtained for all other uses. If the document is available under a Creative Commons License (or other specified license) then refer to the Licence for details of permitted re-use. It is a condition of access that users recognise and abide by the legal requirements associated with these rights. If you believe that this work infringes copyright please provide details by email to qut.copyright@qut.edu.au |
op_doi |
https://doi.org/10.1007/s10530-016-1154-x |
container_title |
Biological Invasions |
container_volume |
18 |
container_issue |
7 |
container_start_page |
2093 |
op_container_end_page |
2106 |
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1789960106163568640 |