Range expansion and increasing impact of the introduced wasp Aphidius matricariae Haliday on sub-Antarctic Marion Island
Despite the significance of biological invasions in the Antarctic region, understanding of the rates of spread and impact of introduced species is limited. Such information is necessary to develop and to justify management actions. Here we quantify rates of spread and changes in impact of the introd...
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ftmonashunicris:oai:monash.edu:publications/3156f050-fe9a-46de-9da3-ff535174f41d 2024-06-23T07:47:24+00:00 Range expansion and increasing impact of the introduced wasp Aphidius matricariae Haliday on sub-Antarctic Marion Island Lee, Jennifer E Chown, Steven L. 2016-05-01 application/pdf https://research.monash.edu/en/publications/3156f050-fe9a-46de-9da3-ff535174f41d https://doi.org/10.1007/s10530-015-0967-3 https://researchmgt.monash.edu/ws/files/251013787/26379728_oa.pdf http://www.scopus.com/inward/record.url?scp=84961817075&partnerID=8YFLogxK eng eng info:eu-repo/semantics/closedAccess Lee , J E & Chown , S L 2016 , ' Range expansion and increasing impact of the introduced wasp Aphidius matricariae Haliday on sub-Antarctic Marion Island ' , Biological Invasions , vol. 18 , no. 5 , pp. 1235-1246 . https://doi.org/10.1007/s10530-015-0967-3 Dispersal Hemiptera Hymenoptera Impact Physiological tolerance Spread article 2016 ftmonashunicris https://doi.org/10.1007/s10530-015-0967-3 2024-06-06T00:05:37Z Despite the significance of biological invasions in the Antarctic region, understanding of the rates of spread and impact of introduced species is limited. Such information is necessary to develop and to justify management actions. Here we quantify rates of spread and changes in impact of the introduced wasp Aphidius matricariae Haliday, which parasitizes the invasive aphid Rhopalosiphum padi (L.), on sub-Antarctic Marion Island, to which the wasp was introduced in ca. 2001. Between 2006 and 2011, the wasp had colonised all coastal sites, with an estimated rate of spread of 3–5 km year −1 . Adult abundance doubled over the period, while impact, measured as mean percentage parasitism of R. padi, had increased from 6.9 to 30.1 %. Adult wasps have thermal tolerances (LT50s) of between −18 and 33.8 °C, with a crystallization temperature of −22.9 °C, and little tolerance (ca. 37 h) of low humidity at 10 °C. Desiccation intolerance is probably limiting for the adult wasps, while distribution of their aphid host likely sets ultimate distributional limits, especially towards higher elevations where R. padi is absent, despite the presence of its host grass on the island, Poa cookii (Hook. f.). Rising temperatures are benefitting P. cookii, and will probably do the same for both R. padi and A. matricariae. Our study shows that once established, spread of introduced species on the island may be rapid, emphasizing the importance of initial quarantine. Article in Journal/Newspaper Antarc* Antarctic Marion Island Monash University Research Portal Antarctic The Antarctic Biological Invasions 18 5 1235 1246 |
institution |
Open Polar |
collection |
Monash University Research Portal |
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ftmonashunicris |
language |
English |
topic |
Dispersal Hemiptera Hymenoptera Impact Physiological tolerance Spread |
spellingShingle |
Dispersal Hemiptera Hymenoptera Impact Physiological tolerance Spread Lee, Jennifer E Chown, Steven L. Range expansion and increasing impact of the introduced wasp Aphidius matricariae Haliday on sub-Antarctic Marion Island |
topic_facet |
Dispersal Hemiptera Hymenoptera Impact Physiological tolerance Spread |
description |
Despite the significance of biological invasions in the Antarctic region, understanding of the rates of spread and impact of introduced species is limited. Such information is necessary to develop and to justify management actions. Here we quantify rates of spread and changes in impact of the introduced wasp Aphidius matricariae Haliday, which parasitizes the invasive aphid Rhopalosiphum padi (L.), on sub-Antarctic Marion Island, to which the wasp was introduced in ca. 2001. Between 2006 and 2011, the wasp had colonised all coastal sites, with an estimated rate of spread of 3–5 km year −1 . Adult abundance doubled over the period, while impact, measured as mean percentage parasitism of R. padi, had increased from 6.9 to 30.1 %. Adult wasps have thermal tolerances (LT50s) of between −18 and 33.8 °C, with a crystallization temperature of −22.9 °C, and little tolerance (ca. 37 h) of low humidity at 10 °C. Desiccation intolerance is probably limiting for the adult wasps, while distribution of their aphid host likely sets ultimate distributional limits, especially towards higher elevations where R. padi is absent, despite the presence of its host grass on the island, Poa cookii (Hook. f.). Rising temperatures are benefitting P. cookii, and will probably do the same for both R. padi and A. matricariae. Our study shows that once established, spread of introduced species on the island may be rapid, emphasizing the importance of initial quarantine. |
format |
Article in Journal/Newspaper |
author |
Lee, Jennifer E Chown, Steven L. |
author_facet |
Lee, Jennifer E Chown, Steven L. |
author_sort |
Lee, Jennifer E |
title |
Range expansion and increasing impact of the introduced wasp Aphidius matricariae Haliday on sub-Antarctic Marion Island |
title_short |
Range expansion and increasing impact of the introduced wasp Aphidius matricariae Haliday on sub-Antarctic Marion Island |
title_full |
Range expansion and increasing impact of the introduced wasp Aphidius matricariae Haliday on sub-Antarctic Marion Island |
title_fullStr |
Range expansion and increasing impact of the introduced wasp Aphidius matricariae Haliday on sub-Antarctic Marion Island |
title_full_unstemmed |
Range expansion and increasing impact of the introduced wasp Aphidius matricariae Haliday on sub-Antarctic Marion Island |
title_sort |
range expansion and increasing impact of the introduced wasp aphidius matricariae haliday on sub-antarctic marion island |
publishDate |
2016 |
url |
https://research.monash.edu/en/publications/3156f050-fe9a-46de-9da3-ff535174f41d https://doi.org/10.1007/s10530-015-0967-3 https://researchmgt.monash.edu/ws/files/251013787/26379728_oa.pdf http://www.scopus.com/inward/record.url?scp=84961817075&partnerID=8YFLogxK |
geographic |
Antarctic The Antarctic |
geographic_facet |
Antarctic The Antarctic |
genre |
Antarc* Antarctic Marion Island |
genre_facet |
Antarc* Antarctic Marion Island |
op_source |
Lee , J E & Chown , S L 2016 , ' Range expansion and increasing impact of the introduced wasp Aphidius matricariae Haliday on sub-Antarctic Marion Island ' , Biological Invasions , vol. 18 , no. 5 , pp. 1235-1246 . https://doi.org/10.1007/s10530-015-0967-3 |
op_rights |
info:eu-repo/semantics/closedAccess |
op_doi |
https://doi.org/10.1007/s10530-015-0967-3 |
container_title |
Biological Invasions |
container_volume |
18 |
container_issue |
5 |
container_start_page |
1235 |
op_container_end_page |
1246 |
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1802651492585308160 |