Spatial distribution, habitat preference and colonization status of two alien terrestrial invertebrate species in Antarctica
The introduction of invasive species is one of the greatest threats to Earth’s biodiversity, as they can reduce native biodiversity and alter ecosystem structure and function. Currently, the only two known non-native terrestrial invertebrates in Antarctica are the chironomid midge Eretmoptera murphy...
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ftnerc:oai:nora.nerc.ac.uk:10534 2023-05-15T13:45:10+02:00 Spatial distribution, habitat preference and colonization status of two alien terrestrial invertebrate species in Antarctica Hughes, Kevin A. Worland, M. Roger 2010 text http://nora.nerc.ac.uk/id/eprint/10534/ https://nora.nerc.ac.uk/id/eprint/10534/1/-ANS-ANS22_03-S0954102009990770a.pdf en eng Cambridge University Press https://nora.nerc.ac.uk/id/eprint/10534/1/-ANS-ANS22_03-S0954102009990770a.pdf Hughes, Kevin A. orcid:0000-0003-2701-726X Worland, M. Roger. 2010 Spatial distribution, habitat preference and colonization status of two alien terrestrial invertebrate species in Antarctica. Antarctic Science, 22 (3). 221-231. https://doi.org/10.1017/S0954102009990770 <https://doi.org/10.1017/S0954102009990770> Zoology Ecology and Environment Publication - Article PeerReviewed 2010 ftnerc https://doi.org/10.1017/S0954102009990770 2023-02-04T19:26:45Z The introduction of invasive species is one of the greatest threats to Earth’s biodiversity, as they can reduce native biodiversity and alter ecosystem structure and function. Currently, the only two known non-native terrestrial invertebrates in Antarctica are the chironomid midge Eretmoptera murphyi and the enchytraeid worm Christensenidrilus blocki. These invertebrates were probably introduced to ground near Signy Research Station, South Orkney Islands, during transplantation experiments in the late 1960s. Between 2007 and 2009, this study surveyed the area around the introduction site for midge larvae and worms to assess any change over the last four decades in their spatial distribution, habitat preference and colonization status. Eretmoptera murphyi was found in concentrations up to 4.1 × 105 larvae m-2 (mean 2.1 × 104 larvae m-2) at distances of up to 220 m from the probable introduction site (c. 35 000 m2), while C. blocki was only found close to the introduction site in low numbers. Significantly more E. murphyi larvae were found in peat and dead organic material (3.34 × 104 m-2) than in stony soil and gravel (1.52 × 104 m-2) or living moss and other plant material (1.16 × 104 m-2). Eretmoptera murphyi can no longer be considered a persistent alien as it clearly expanding its distribution, while C. blocki remains a persistent alien species. Article in Journal/Newspaper Antarc* Antarctic Science Antarctica South Orkney Islands Natural Environment Research Council: NERC Open Research Archive South Orkney Islands ENVELOPE(-45.500,-45.500,-60.583,-60.583) Antarctic Science 22 3 221 231 |
institution |
Open Polar |
collection |
Natural Environment Research Council: NERC Open Research Archive |
op_collection_id |
ftnerc |
language |
English |
topic |
Zoology Ecology and Environment |
spellingShingle |
Zoology Ecology and Environment Hughes, Kevin A. Worland, M. Roger Spatial distribution, habitat preference and colonization status of two alien terrestrial invertebrate species in Antarctica |
topic_facet |
Zoology Ecology and Environment |
description |
The introduction of invasive species is one of the greatest threats to Earth’s biodiversity, as they can reduce native biodiversity and alter ecosystem structure and function. Currently, the only two known non-native terrestrial invertebrates in Antarctica are the chironomid midge Eretmoptera murphyi and the enchytraeid worm Christensenidrilus blocki. These invertebrates were probably introduced to ground near Signy Research Station, South Orkney Islands, during transplantation experiments in the late 1960s. Between 2007 and 2009, this study surveyed the area around the introduction site for midge larvae and worms to assess any change over the last four decades in their spatial distribution, habitat preference and colonization status. Eretmoptera murphyi was found in concentrations up to 4.1 × 105 larvae m-2 (mean 2.1 × 104 larvae m-2) at distances of up to 220 m from the probable introduction site (c. 35 000 m2), while C. blocki was only found close to the introduction site in low numbers. Significantly more E. murphyi larvae were found in peat and dead organic material (3.34 × 104 m-2) than in stony soil and gravel (1.52 × 104 m-2) or living moss and other plant material (1.16 × 104 m-2). Eretmoptera murphyi can no longer be considered a persistent alien as it clearly expanding its distribution, while C. blocki remains a persistent alien species. |
format |
Article in Journal/Newspaper |
author |
Hughes, Kevin A. Worland, M. Roger |
author_facet |
Hughes, Kevin A. Worland, M. Roger |
author_sort |
Hughes, Kevin A. |
title |
Spatial distribution, habitat preference and colonization status of two alien terrestrial invertebrate species in Antarctica |
title_short |
Spatial distribution, habitat preference and colonization status of two alien terrestrial invertebrate species in Antarctica |
title_full |
Spatial distribution, habitat preference and colonization status of two alien terrestrial invertebrate species in Antarctica |
title_fullStr |
Spatial distribution, habitat preference and colonization status of two alien terrestrial invertebrate species in Antarctica |
title_full_unstemmed |
Spatial distribution, habitat preference and colonization status of two alien terrestrial invertebrate species in Antarctica |
title_sort |
spatial distribution, habitat preference and colonization status of two alien terrestrial invertebrate species in antarctica |
publisher |
Cambridge University Press |
publishDate |
2010 |
url |
http://nora.nerc.ac.uk/id/eprint/10534/ https://nora.nerc.ac.uk/id/eprint/10534/1/-ANS-ANS22_03-S0954102009990770a.pdf |
long_lat |
ENVELOPE(-45.500,-45.500,-60.583,-60.583) |
geographic |
South Orkney Islands |
geographic_facet |
South Orkney Islands |
genre |
Antarc* Antarctic Science Antarctica South Orkney Islands |
genre_facet |
Antarc* Antarctic Science Antarctica South Orkney Islands |
op_relation |
https://nora.nerc.ac.uk/id/eprint/10534/1/-ANS-ANS22_03-S0954102009990770a.pdf Hughes, Kevin A. orcid:0000-0003-2701-726X Worland, M. Roger. 2010 Spatial distribution, habitat preference and colonization status of two alien terrestrial invertebrate species in Antarctica. Antarctic Science, 22 (3). 221-231. https://doi.org/10.1017/S0954102009990770 <https://doi.org/10.1017/S0954102009990770> |
op_doi |
https://doi.org/10.1017/S0954102009990770 |
container_title |
Antarctic Science |
container_volume |
22 |
container_issue |
3 |
container_start_page |
221 |
op_container_end_page |
231 |
_version_ |
1766214155639980032 |