Comparative thermal tolerance of herbivorous and predatory beetles on South Georgia, Sub-Antarctic
On the sub-Antarctic island of South Georgia the field distributions of two herbivorous perimyloid beetles Hydromedion sparsutum and Perimylops antarcticus overlap with the latter occurring at higher altitudes. An introduced predatory carabid beetle (Trechisibus antarcticus) is found in the coastal...
Main Authors: | , , |
---|---|
Format: | Article in Journal/Newspaper |
Language: | unknown |
Published: |
Cryo-Letters
1999
|
Subjects: | |
Online Access: | http://nora.nerc.ac.uk/id/eprint/502999/ |
id |
ftnerc:oai:nora.nerc.ac.uk:502999 |
---|---|
record_format |
openpolar |
spelling |
ftnerc:oai:nora.nerc.ac.uk:502999 2023-05-15T13:48:07+02:00 Comparative thermal tolerance of herbivorous and predatory beetles on South Georgia, Sub-Antarctic Bale, J.S. Worland, M.R. Block, W. 1999 http://nora.nerc.ac.uk/id/eprint/502999/ unknown Cryo-Letters Bale, J.S.; Worland, M.R.; Block, W. 1999 Comparative thermal tolerance of herbivorous and predatory beetles on South Georgia, Sub-Antarctic. CryoLetters, 20 (2). 83-88. Publication - Article PeerReviewed 1999 ftnerc 2023-02-04T19:37:34Z On the sub-Antarctic island of South Georgia the field distributions of two herbivorous perimyloid beetles Hydromedion sparsutum and Perimylops antarcticus overlap with the latter occurring at higher altitudes. An introduced predatory carabid beetle (Trechisibus antarcticus) is found in the coastal lowlands in close association with H. sparsutum. Laboratory experiments confirmed the hypothesis that the distribution and origin of the species is relected in a decreasing order of cold hardiness (P. antarcticus > H. sparsutum > T. antarcticus) with the sequence reversed in exposures at high temparatures. The use of such laboratory assessments (supercooling points, upper and lower lethal temperatures) when applied to single species and as a comparative bioassay, is discussed. Article in Journal/Newspaper Antarc* Antarctic antarcticus Natural Environment Research Council: NERC Open Research Archive Antarctic |
institution |
Open Polar |
collection |
Natural Environment Research Council: NERC Open Research Archive |
op_collection_id |
ftnerc |
language |
unknown |
description |
On the sub-Antarctic island of South Georgia the field distributions of two herbivorous perimyloid beetles Hydromedion sparsutum and Perimylops antarcticus overlap with the latter occurring at higher altitudes. An introduced predatory carabid beetle (Trechisibus antarcticus) is found in the coastal lowlands in close association with H. sparsutum. Laboratory experiments confirmed the hypothesis that the distribution and origin of the species is relected in a decreasing order of cold hardiness (P. antarcticus > H. sparsutum > T. antarcticus) with the sequence reversed in exposures at high temparatures. The use of such laboratory assessments (supercooling points, upper and lower lethal temperatures) when applied to single species and as a comparative bioassay, is discussed. |
format |
Article in Journal/Newspaper |
author |
Bale, J.S. Worland, M.R. Block, W. |
spellingShingle |
Bale, J.S. Worland, M.R. Block, W. Comparative thermal tolerance of herbivorous and predatory beetles on South Georgia, Sub-Antarctic |
author_facet |
Bale, J.S. Worland, M.R. Block, W. |
author_sort |
Bale, J.S. |
title |
Comparative thermal tolerance of herbivorous and predatory beetles on South Georgia, Sub-Antarctic |
title_short |
Comparative thermal tolerance of herbivorous and predatory beetles on South Georgia, Sub-Antarctic |
title_full |
Comparative thermal tolerance of herbivorous and predatory beetles on South Georgia, Sub-Antarctic |
title_fullStr |
Comparative thermal tolerance of herbivorous and predatory beetles on South Georgia, Sub-Antarctic |
title_full_unstemmed |
Comparative thermal tolerance of herbivorous and predatory beetles on South Georgia, Sub-Antarctic |
title_sort |
comparative thermal tolerance of herbivorous and predatory beetles on south georgia, sub-antarctic |
publisher |
Cryo-Letters |
publishDate |
1999 |
url |
http://nora.nerc.ac.uk/id/eprint/502999/ |
geographic |
Antarctic |
geographic_facet |
Antarctic |
genre |
Antarc* Antarctic antarcticus |
genre_facet |
Antarc* Antarctic antarcticus |
op_relation |
Bale, J.S.; Worland, M.R.; Block, W. 1999 Comparative thermal tolerance of herbivorous and predatory beetles on South Georgia, Sub-Antarctic. CryoLetters, 20 (2). 83-88. |
_version_ |
1766248671234490368 |