The status of two exotic terrestrial Crustacea on sub-Antarctic Macquarie Island
Two terrestrial Crustacea, Puhuruhuru patersoni (Amphipoda: Talitridae) and Styloniscus otakensis (Isopoda: Styloniscidae), were discovered on sub-Antarctic Macquarie Island in 1991 and 1992, respectively. Each species was identified as having been described, and previously only known, from South Is...
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ftanucanberra:oai:digitalcollections.anu.edu.au:1885/54476 2023-05-15T13:57:36+02:00 The status of two exotic terrestrial Crustacea on sub-Antarctic Macquarie Island Greenslade, Penelope Melbourne, Brett A. Davies, Kendi F. Stevens, Mark I 2015-12-10T22:28:27Z http://hdl.handle.net/1885/54476 unknown Cambridge University Press 0032-2474 http://hdl.handle.net/1885/54476 Polar Record Keywords: amphipod isopod population distribution population size trophic environment warming Australasia Australia Macquarie Island Pacific islands Pacific Ocean Amphipoda Crustacea Isopoda Styloniscidae Styloniscus otakensis Talitridae Journal article 2015 ftanucanberra 2015-12-28T23:28:42Z Two terrestrial Crustacea, Puhuruhuru patersoni (Amphipoda: Talitridae) and Styloniscus otakensis (Isopoda: Styloniscidae), were discovered on sub-Antarctic Macquarie Island in 1991 and 1992, respectively. Each species was identified as having been described, and previously only known, from South Island, New Zealand and from some of New Zealand's southern offshore islands. The distributions of the two species on Macquarie Island have been mapped in detail on four occasions over the last fifteen years, each mapping extending previously existing distributions or showing changes from the earlier records. Details of all four years' mapping are figured. It is concluded that these species were most likely introduced between 1810 and 1919 and that populations of the amphipod have not expanded to any extent in the twelve years between 1992 and 2004 but that the isopod has slightly increased its range. Both species are macrodetritivores, a trophic group not well represented on the island, so there is the possibility of an irreversible change to the Macquarie Island ecosystem if they become more widespread with warming climates. However no such change has yet been observed. The advantages and feasibility of removing these two exotic species from the island is discussed, as are the possible routes by which the species were introduced to the island. Article in Journal/Newspaper Antarc* Antarctic Macquarie Island Polar Record Australian National University: ANU Digital Collections Antarctic New Zealand Pacific |
institution |
Open Polar |
collection |
Australian National University: ANU Digital Collections |
op_collection_id |
ftanucanberra |
language |
unknown |
topic |
Keywords: amphipod isopod population distribution population size trophic environment warming Australasia Australia Macquarie Island Pacific islands Pacific Ocean Amphipoda Crustacea Isopoda Styloniscidae Styloniscus otakensis Talitridae |
spellingShingle |
Keywords: amphipod isopod population distribution population size trophic environment warming Australasia Australia Macquarie Island Pacific islands Pacific Ocean Amphipoda Crustacea Isopoda Styloniscidae Styloniscus otakensis Talitridae Greenslade, Penelope Melbourne, Brett A. Davies, Kendi F. Stevens, Mark I The status of two exotic terrestrial Crustacea on sub-Antarctic Macquarie Island |
topic_facet |
Keywords: amphipod isopod population distribution population size trophic environment warming Australasia Australia Macquarie Island Pacific islands Pacific Ocean Amphipoda Crustacea Isopoda Styloniscidae Styloniscus otakensis Talitridae |
description |
Two terrestrial Crustacea, Puhuruhuru patersoni (Amphipoda: Talitridae) and Styloniscus otakensis (Isopoda: Styloniscidae), were discovered on sub-Antarctic Macquarie Island in 1991 and 1992, respectively. Each species was identified as having been described, and previously only known, from South Island, New Zealand and from some of New Zealand's southern offshore islands. The distributions of the two species on Macquarie Island have been mapped in detail on four occasions over the last fifteen years, each mapping extending previously existing distributions or showing changes from the earlier records. Details of all four years' mapping are figured. It is concluded that these species were most likely introduced between 1810 and 1919 and that populations of the amphipod have not expanded to any extent in the twelve years between 1992 and 2004 but that the isopod has slightly increased its range. Both species are macrodetritivores, a trophic group not well represented on the island, so there is the possibility of an irreversible change to the Macquarie Island ecosystem if they become more widespread with warming climates. However no such change has yet been observed. The advantages and feasibility of removing these two exotic species from the island is discussed, as are the possible routes by which the species were introduced to the island. |
format |
Article in Journal/Newspaper |
author |
Greenslade, Penelope Melbourne, Brett A. Davies, Kendi F. Stevens, Mark I |
author_facet |
Greenslade, Penelope Melbourne, Brett A. Davies, Kendi F. Stevens, Mark I |
author_sort |
Greenslade, Penelope |
title |
The status of two exotic terrestrial Crustacea on sub-Antarctic Macquarie Island |
title_short |
The status of two exotic terrestrial Crustacea on sub-Antarctic Macquarie Island |
title_full |
The status of two exotic terrestrial Crustacea on sub-Antarctic Macquarie Island |
title_fullStr |
The status of two exotic terrestrial Crustacea on sub-Antarctic Macquarie Island |
title_full_unstemmed |
The status of two exotic terrestrial Crustacea on sub-Antarctic Macquarie Island |
title_sort |
status of two exotic terrestrial crustacea on sub-antarctic macquarie island |
publisher |
Cambridge University Press |
publishDate |
2015 |
url |
http://hdl.handle.net/1885/54476 |
geographic |
Antarctic New Zealand Pacific |
geographic_facet |
Antarctic New Zealand Pacific |
genre |
Antarc* Antarctic Macquarie Island Polar Record |
genre_facet |
Antarc* Antarctic Macquarie Island Polar Record |
op_source |
Polar Record |
op_relation |
0032-2474 http://hdl.handle.net/1885/54476 |
_version_ |
1766265312815087616 |