Respiratory metabolism in two species of carabid beetle from the sub-Antarctic island of South Georgia
The influence of feeding state on cold-adapted metabolism was investigated in the adults of two carabid beetles, Trechisibus antarcticus and Oopterus soledadinus (Coleoptera: Carabidae), which have been introduced to sub-Antarctic South Georgia. The metabolic rates in both fed and starved O. soledad...
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Online Access: | http://nora.nerc.ac.uk/id/eprint/514740/ https://doi.org/10.1007/s003000050173 |
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ftnerc:oai:nora.nerc.ac.uk:514740 2023-05-15T13:49:33+02:00 Respiratory metabolism in two species of carabid beetle from the sub-Antarctic island of South Georgia Todd, C. M. 1997-08 http://nora.nerc.ac.uk/id/eprint/514740/ https://doi.org/10.1007/s003000050173 unknown Springer Todd, C. M. 1997 Respiratory metabolism in two species of carabid beetle from the sub-Antarctic island of South Georgia. Polar Biology, 18 (3). 166-171. https://doi.org/10.1007/s003000050173 <https://doi.org/10.1007/s003000050173> Publication - Article PeerReviewed 1997 ftnerc https://doi.org/10.1007/s003000050173 2023-02-04T19:43:40Z The influence of feeding state on cold-adapted metabolism was investigated in the adults of two carabid beetles, Trechisibus antarcticus and Oopterus soledadinus (Coleoptera: Carabidae), which have been introduced to sub-Antarctic South Georgia. The metabolic rates in both fed and starved O. soledadinus and T. antarcticus were determined at eight temperatures ranging from 0 to 35°C, using a Servomex 570A oxygen analyser. There was no significant difference in the metabolic rates between the fed and starved animals of each species. In T. antarcticus this ranged from 0.28 to 3.84 ml O2 g−1 h−1, and in O. soledadinus from 0.19 to 2.80 ml O2 g−1 h−1 at 0 and 35°C, respectively. In each of the four experimental groups there was a strong positive correlation between metabolic rate and temperature, with the highest increase occurring between 0 and 5°C. In contrast, the metabolic rate was significantly negatively correlated with initial live weight of the beetles at most temperatures. The results are discussed comparatively with other species and against a background of the ecology of the two carabids at South Georgia. Article in Journal/Newspaper Antarc* Antarctic antarcticus Polar Biology Natural Environment Research Council: NERC Open Research Archive Antarctic Polar Biology 18 3 166 171 |
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Open Polar |
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Natural Environment Research Council: NERC Open Research Archive |
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ftnerc |
language |
unknown |
description |
The influence of feeding state on cold-adapted metabolism was investigated in the adults of two carabid beetles, Trechisibus antarcticus and Oopterus soledadinus (Coleoptera: Carabidae), which have been introduced to sub-Antarctic South Georgia. The metabolic rates in both fed and starved O. soledadinus and T. antarcticus were determined at eight temperatures ranging from 0 to 35°C, using a Servomex 570A oxygen analyser. There was no significant difference in the metabolic rates between the fed and starved animals of each species. In T. antarcticus this ranged from 0.28 to 3.84 ml O2 g−1 h−1, and in O. soledadinus from 0.19 to 2.80 ml O2 g−1 h−1 at 0 and 35°C, respectively. In each of the four experimental groups there was a strong positive correlation between metabolic rate and temperature, with the highest increase occurring between 0 and 5°C. In contrast, the metabolic rate was significantly negatively correlated with initial live weight of the beetles at most temperatures. The results are discussed comparatively with other species and against a background of the ecology of the two carabids at South Georgia. |
format |
Article in Journal/Newspaper |
author |
Todd, C. M. |
spellingShingle |
Todd, C. M. Respiratory metabolism in two species of carabid beetle from the sub-Antarctic island of South Georgia |
author_facet |
Todd, C. M. |
author_sort |
Todd, C. M. |
title |
Respiratory metabolism in two species of carabid beetle from the sub-Antarctic island of South Georgia |
title_short |
Respiratory metabolism in two species of carabid beetle from the sub-Antarctic island of South Georgia |
title_full |
Respiratory metabolism in two species of carabid beetle from the sub-Antarctic island of South Georgia |
title_fullStr |
Respiratory metabolism in two species of carabid beetle from the sub-Antarctic island of South Georgia |
title_full_unstemmed |
Respiratory metabolism in two species of carabid beetle from the sub-Antarctic island of South Georgia |
title_sort |
respiratory metabolism in two species of carabid beetle from the sub-antarctic island of south georgia |
publisher |
Springer |
publishDate |
1997 |
url |
http://nora.nerc.ac.uk/id/eprint/514740/ https://doi.org/10.1007/s003000050173 |
geographic |
Antarctic |
geographic_facet |
Antarctic |
genre |
Antarc* Antarctic antarcticus Polar Biology |
genre_facet |
Antarc* Antarctic antarcticus Polar Biology |
op_relation |
Todd, C. M. 1997 Respiratory metabolism in two species of carabid beetle from the sub-Antarctic island of South Georgia. Polar Biology, 18 (3). 166-171. https://doi.org/10.1007/s003000050173 <https://doi.org/10.1007/s003000050173> |
op_doi |
https://doi.org/10.1007/s003000050173 |
container_title |
Polar Biology |
container_volume |
18 |
container_issue |
3 |
container_start_page |
166 |
op_container_end_page |
171 |
_version_ |
1766251565761429504 |