Changes in Subantarctic Heard Island Vegetation at Sites Occupied by Poa annua , 1987-2000
Poa annua, the only alien plant species recorded on subantarctic Heard Island, considerably expanded its range and abundance along three transects in tundra-like vegetation on the island in the period 1987-2000. This expansion was strongly associated with increased seal disturbance, which also favor...
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University of Colorado, Institute of Arctic and Alpine Research (INSTAAR)
2005
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ftunivtasecite:oai:ecite.utas.edu.au:34422 2023-05-15T14:03:54+02:00 Changes in Subantarctic Heard Island Vegetation at Sites Occupied by Poa annua , 1987-2000 Scott, JJ Kirkpatrick, JB 2005 https://doi.org/10.1657/1523-0430(2005)037[0366:CISHIV]2.0.CO;2 http://ecite.utas.edu.au/34422 en eng University of Colorado, Institute of Arctic and Alpine Research (INSTAAR) http://dx.doi.org/10.1657/1523-0430(2005)037[0366:CISHIV]2.0.CO;2 Scott, JJ and Kirkpatrick, JB, Changes in Subantarctic Heard Island Vegetation at Sites Occupied by Poa annua , 1987-2000, Arctic, Antarctic, and Alpine Research, 37, (3) pp. 366-371. ISSN 1523-0430 (2005) [Refereed Article] http://ecite.utas.edu.au/34422 Biological Sciences Evolutionary Biology Biogeography and Phylogeography Refereed Article PeerReviewed 2005 ftunivtasecite https://doi.org/10.1657/1523-0430(2005)037[0366:CISHIV]2.0.CO;2 2019-12-13T21:13:10Z Poa annua, the only alien plant species recorded on subantarctic Heard Island, considerably expanded its range and abundance along three transects in tundra-like vegetation on the island in the period 1987-2000. This expansion was strongly associated with increased seal disturbance, which also favored Callitriche antarctica and damaged Pringlea antiscorbutica, leading to a decrease in mean vegetation height. Expansions of Azorella selago and Poa cookii were independent of the expansion of P. annua, relating to colonization of moraines. There was no evidence of displacement of other taxa by Poa annua in areas undisturbed by seals. 2005 Regents of the University of Colorado. Article in Journal/Newspaper Antarc* Antarctic and Alpine Research Antarctica Arctic Heard Island Tundra eCite UTAS (University of Tasmania) Heard Island |
institution |
Open Polar |
collection |
eCite UTAS (University of Tasmania) |
op_collection_id |
ftunivtasecite |
language |
English |
topic |
Biological Sciences Evolutionary Biology Biogeography and Phylogeography |
spellingShingle |
Biological Sciences Evolutionary Biology Biogeography and Phylogeography Scott, JJ Kirkpatrick, JB Changes in Subantarctic Heard Island Vegetation at Sites Occupied by Poa annua , 1987-2000 |
topic_facet |
Biological Sciences Evolutionary Biology Biogeography and Phylogeography |
description |
Poa annua, the only alien plant species recorded on subantarctic Heard Island, considerably expanded its range and abundance along three transects in tundra-like vegetation on the island in the period 1987-2000. This expansion was strongly associated with increased seal disturbance, which also favored Callitriche antarctica and damaged Pringlea antiscorbutica, leading to a decrease in mean vegetation height. Expansions of Azorella selago and Poa cookii were independent of the expansion of P. annua, relating to colonization of moraines. There was no evidence of displacement of other taxa by Poa annua in areas undisturbed by seals. 2005 Regents of the University of Colorado. |
format |
Article in Journal/Newspaper |
author |
Scott, JJ Kirkpatrick, JB |
author_facet |
Scott, JJ Kirkpatrick, JB |
author_sort |
Scott, JJ |
title |
Changes in Subantarctic Heard Island Vegetation at Sites Occupied by Poa annua , 1987-2000 |
title_short |
Changes in Subantarctic Heard Island Vegetation at Sites Occupied by Poa annua , 1987-2000 |
title_full |
Changes in Subantarctic Heard Island Vegetation at Sites Occupied by Poa annua , 1987-2000 |
title_fullStr |
Changes in Subantarctic Heard Island Vegetation at Sites Occupied by Poa annua , 1987-2000 |
title_full_unstemmed |
Changes in Subantarctic Heard Island Vegetation at Sites Occupied by Poa annua , 1987-2000 |
title_sort |
changes in subantarctic heard island vegetation at sites occupied by poa annua , 1987-2000 |
publisher |
University of Colorado, Institute of Arctic and Alpine Research (INSTAAR) |
publishDate |
2005 |
url |
https://doi.org/10.1657/1523-0430(2005)037[0366:CISHIV]2.0.CO;2 http://ecite.utas.edu.au/34422 |
geographic |
Heard Island |
geographic_facet |
Heard Island |
genre |
Antarc* Antarctic and Alpine Research Antarctica Arctic Heard Island Tundra |
genre_facet |
Antarc* Antarctic and Alpine Research Antarctica Arctic Heard Island Tundra |
op_relation |
http://dx.doi.org/10.1657/1523-0430(2005)037[0366:CISHIV]2.0.CO;2 Scott, JJ and Kirkpatrick, JB, Changes in Subantarctic Heard Island Vegetation at Sites Occupied by Poa annua , 1987-2000, Arctic, Antarctic, and Alpine Research, 37, (3) pp. 366-371. ISSN 1523-0430 (2005) [Refereed Article] http://ecite.utas.edu.au/34422 |
op_doi |
https://doi.org/10.1657/1523-0430(2005)037[0366:CISHIV]2.0.CO;2 |
_version_ |
1766274786681421824 |