The impact of introduced ship rats ( Rattus rattus ) on seedling recruitment and distribution of a subantarctic megaherb ( Pleurophyllum hookeri )
The impact of introduced ship rats (Rattus rattus) on recruitment of the megaherb Pleurophyllum hookeri Buchan. (Asteraceae) was examined on subantarctic Macquarie Island, an island with no extant native terrestrial vertebrates. Pleurophyllum hookeri (Asteraceae) forms a dominant component of the Ma...
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Blackwell Publishing Asia
2005
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Online Access: | https://doi.org/10.1111/j.1442-9993.2005.01430.x http://ecite.utas.edu.au/38110 |
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ftunivtasecite:oai:ecite.utas.edu.au:38110 2023-05-15T17:09:50+02:00 The impact of introduced ship rats ( Rattus rattus ) on seedling recruitment and distribution of a subantarctic megaherb ( Pleurophyllum hookeri ) Shaw, JD Hovenden, MJ Bergstram, DM 2005 https://doi.org/10.1111/j.1442-9993.2005.01430.x http://ecite.utas.edu.au/38110 en eng Blackwell Publishing Asia http://dx.doi.org/10.1111/j.1442-9993.2005.01430.x Shaw, JD and Hovenden, MJ and Bergstram, DM, The impact of introduced ship rats ( Rattus rattus ) on seedling recruitment and distribution of a subantarctic megaherb ( Pleurophyllum hookeri ), Austral Ecology, 30, (1) pp. 118-125. ISSN 1442-9985 (2005) [Refereed Article] http://ecite.utas.edu.au/38110 Biological Sciences Ecology Terrestrial Ecology Refereed Article PeerReviewed 2005 ftunivtasecite https://doi.org/10.1111/j.1442-9993.2005.01430.x 2019-12-13T21:15:54Z The impact of introduced ship rats (Rattus rattus) on recruitment of the megaherb Pleurophyllum hookeri Buchan. (Asteraceae) was examined on subantarctic Macquarie Island, an island with no extant native terrestrial vertebrates. Pleurophyllum hookeri (Asteraceae) forms a dominant component of the Macquarie Island vegetation and is restricted to the subantarctic. The Macquarie Island population of P. hookeri is the most extensive and intact. Introduced ship rats (Rattus rattus) are well established in tall tussock grassland of Macquarie Island. We detected rat activity for the first time within P. hookeri herbfields, in autumn 2000. We found rats were destroying up to 90% of racemes. By excluding rats from caches of inflorescences that they had formed, we found they were having a significant negative effect on initial recruitment and seedling survival within the caches. However, because of high seedling mortality after 1 year, there was no sustained impact of the exclosures on P. hookeri seedling density. Article in Journal/Newspaper Macquarie Island Rattus rattus eCite UTAS (University of Tasmania) Buchan ENVELOPE(-44.700,-44.700,-60.766,-60.766) Austral Ecology 30 1 118 125 |
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Open Polar |
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eCite UTAS (University of Tasmania) |
op_collection_id |
ftunivtasecite |
language |
English |
topic |
Biological Sciences Ecology Terrestrial Ecology |
spellingShingle |
Biological Sciences Ecology Terrestrial Ecology Shaw, JD Hovenden, MJ Bergstram, DM The impact of introduced ship rats ( Rattus rattus ) on seedling recruitment and distribution of a subantarctic megaherb ( Pleurophyllum hookeri ) |
topic_facet |
Biological Sciences Ecology Terrestrial Ecology |
description |
The impact of introduced ship rats (Rattus rattus) on recruitment of the megaherb Pleurophyllum hookeri Buchan. (Asteraceae) was examined on subantarctic Macquarie Island, an island with no extant native terrestrial vertebrates. Pleurophyllum hookeri (Asteraceae) forms a dominant component of the Macquarie Island vegetation and is restricted to the subantarctic. The Macquarie Island population of P. hookeri is the most extensive and intact. Introduced ship rats (Rattus rattus) are well established in tall tussock grassland of Macquarie Island. We detected rat activity for the first time within P. hookeri herbfields, in autumn 2000. We found rats were destroying up to 90% of racemes. By excluding rats from caches of inflorescences that they had formed, we found they were having a significant negative effect on initial recruitment and seedling survival within the caches. However, because of high seedling mortality after 1 year, there was no sustained impact of the exclosures on P. hookeri seedling density. |
format |
Article in Journal/Newspaper |
author |
Shaw, JD Hovenden, MJ Bergstram, DM |
author_facet |
Shaw, JD Hovenden, MJ Bergstram, DM |
author_sort |
Shaw, JD |
title |
The impact of introduced ship rats ( Rattus rattus ) on seedling recruitment and distribution of a subantarctic megaherb ( Pleurophyllum hookeri ) |
title_short |
The impact of introduced ship rats ( Rattus rattus ) on seedling recruitment and distribution of a subantarctic megaherb ( Pleurophyllum hookeri ) |
title_full |
The impact of introduced ship rats ( Rattus rattus ) on seedling recruitment and distribution of a subantarctic megaherb ( Pleurophyllum hookeri ) |
title_fullStr |
The impact of introduced ship rats ( Rattus rattus ) on seedling recruitment and distribution of a subantarctic megaherb ( Pleurophyllum hookeri ) |
title_full_unstemmed |
The impact of introduced ship rats ( Rattus rattus ) on seedling recruitment and distribution of a subantarctic megaherb ( Pleurophyllum hookeri ) |
title_sort |
impact of introduced ship rats ( rattus rattus ) on seedling recruitment and distribution of a subantarctic megaherb ( pleurophyllum hookeri ) |
publisher |
Blackwell Publishing Asia |
publishDate |
2005 |
url |
https://doi.org/10.1111/j.1442-9993.2005.01430.x http://ecite.utas.edu.au/38110 |
long_lat |
ENVELOPE(-44.700,-44.700,-60.766,-60.766) |
geographic |
Buchan |
geographic_facet |
Buchan |
genre |
Macquarie Island Rattus rattus |
genre_facet |
Macquarie Island Rattus rattus |
op_relation |
http://dx.doi.org/10.1111/j.1442-9993.2005.01430.x Shaw, JD and Hovenden, MJ and Bergstram, DM, The impact of introduced ship rats ( Rattus rattus ) on seedling recruitment and distribution of a subantarctic megaherb ( Pleurophyllum hookeri ), Austral Ecology, 30, (1) pp. 118-125. ISSN 1442-9985 (2005) [Refereed Article] http://ecite.utas.edu.au/38110 |
op_doi |
https://doi.org/10.1111/j.1442-9993.2005.01430.x |
container_title |
Austral Ecology |
container_volume |
30 |
container_issue |
1 |
container_start_page |
118 |
op_container_end_page |
125 |
_version_ |
1766066173245390848 |