Temporal metabolic rate variation in a continental Antarctic springtail
Terrestrial systems in Antarctica are characterized by substantial spatial and temporal variation. However, few studies have addressed the paucity of data on metabolic responses to the unpredictable Antarctic environment, particularly with regard to terrestrial biota. This study measured metabolic r...
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ftunivadelaidedl:oai:digital.library.adelaide.edu.au:2440/59127 2023-12-17T10:21:51+01:00 Temporal metabolic rate variation in a continental Antarctic springtail McGaughran, A. Redding, G. Stevens, M. Convey, P. 2009 http://hdl.handle.net/2440/59127 https://doi.org/10.1016/j.jinsphys.2008.10.009 en eng Pergamon-Elsevier Science Ltd Journal of Insect Physiology, 2009; 55(2):130-135 0022-1910 1879-1611 http://hdl.handle.net/2440/59127 doi:10.1016/j.jinsphys.2008.10.009 Stevens, M. [0000-0003-1505-1639] Copyright © 2008 Elsevier Ltd. All rights reserved. Activity Collembola Energy budget Metabolism Journal article 2009 ftunivadelaidedl https://doi.org/10.1016/j.jinsphys.2008.10.009 2023-11-20T23:26:20Z Terrestrial systems in Antarctica are characterized by substantial spatial and temporal variation. However, few studies have addressed the paucity of data on metabolic responses to the unpredictable Antarctic environment, particularly with regard to terrestrial biota. This study measured metabolic rate variation for individual springtails at a continental Antarctic site using a fiber-optic closed respirometry system incorporating a custom-made respiration chamber. Concurrent measures of (behavioural) activity were made via daily pitfall counts. Metabolic rate of Gomphiocephalus hodgsoni measured at constant temperature varied systematically with progression through the austral summer, and was greatest mid-season. This finding of clear intra-seasonal and temperature-independent variation in mass-specific metabolic rate in G. hodgsoni is one of very few such reports for a terrestrial invertebrate (and the only such study for Antarctica), and parallels physiological studies in the Antarctic marine environment linking metabolic rate elevation with biological function rather than temperature adaptation per se. However, response to temperature at relatively short time-scales is also likely to be an important part of the life history strategy of Antarctic terrestrial invertebrates such as G. hodgsoni, which appears capable of both physiologically and behaviourally 'tuning' in to short-term thermal variability to respond appropriately to the local unpredictable Antarctic habitat. A. McGaughran, G.P. Redding, M.I. Stevens and P. Convey Article in Journal/Newspaper Antarc* Antarctic Antarctic Springtail Antarctica Gomphiocephalus hodgsoni Springtail The University of Adelaide: Digital Library Antarctic Austral The Antarctic Journal of Insect Physiology 55 2 130 135 |
institution |
Open Polar |
collection |
The University of Adelaide: Digital Library |
op_collection_id |
ftunivadelaidedl |
language |
English |
topic |
Activity Collembola Energy budget Metabolism |
spellingShingle |
Activity Collembola Energy budget Metabolism McGaughran, A. Redding, G. Stevens, M. Convey, P. Temporal metabolic rate variation in a continental Antarctic springtail |
topic_facet |
Activity Collembola Energy budget Metabolism |
description |
Terrestrial systems in Antarctica are characterized by substantial spatial and temporal variation. However, few studies have addressed the paucity of data on metabolic responses to the unpredictable Antarctic environment, particularly with regard to terrestrial biota. This study measured metabolic rate variation for individual springtails at a continental Antarctic site using a fiber-optic closed respirometry system incorporating a custom-made respiration chamber. Concurrent measures of (behavioural) activity were made via daily pitfall counts. Metabolic rate of Gomphiocephalus hodgsoni measured at constant temperature varied systematically with progression through the austral summer, and was greatest mid-season. This finding of clear intra-seasonal and temperature-independent variation in mass-specific metabolic rate in G. hodgsoni is one of very few such reports for a terrestrial invertebrate (and the only such study for Antarctica), and parallels physiological studies in the Antarctic marine environment linking metabolic rate elevation with biological function rather than temperature adaptation per se. However, response to temperature at relatively short time-scales is also likely to be an important part of the life history strategy of Antarctic terrestrial invertebrates such as G. hodgsoni, which appears capable of both physiologically and behaviourally 'tuning' in to short-term thermal variability to respond appropriately to the local unpredictable Antarctic habitat. A. McGaughran, G.P. Redding, M.I. Stevens and P. Convey |
format |
Article in Journal/Newspaper |
author |
McGaughran, A. Redding, G. Stevens, M. Convey, P. |
author_facet |
McGaughran, A. Redding, G. Stevens, M. Convey, P. |
author_sort |
McGaughran, A. |
title |
Temporal metabolic rate variation in a continental Antarctic springtail |
title_short |
Temporal metabolic rate variation in a continental Antarctic springtail |
title_full |
Temporal metabolic rate variation in a continental Antarctic springtail |
title_fullStr |
Temporal metabolic rate variation in a continental Antarctic springtail |
title_full_unstemmed |
Temporal metabolic rate variation in a continental Antarctic springtail |
title_sort |
temporal metabolic rate variation in a continental antarctic springtail |
publisher |
Pergamon-Elsevier Science Ltd |
publishDate |
2009 |
url |
http://hdl.handle.net/2440/59127 https://doi.org/10.1016/j.jinsphys.2008.10.009 |
geographic |
Antarctic Austral The Antarctic |
geographic_facet |
Antarctic Austral The Antarctic |
genre |
Antarc* Antarctic Antarctic Springtail Antarctica Gomphiocephalus hodgsoni Springtail |
genre_facet |
Antarc* Antarctic Antarctic Springtail Antarctica Gomphiocephalus hodgsoni Springtail |
op_relation |
Journal of Insect Physiology, 2009; 55(2):130-135 0022-1910 1879-1611 http://hdl.handle.net/2440/59127 doi:10.1016/j.jinsphys.2008.10.009 Stevens, M. [0000-0003-1505-1639] |
op_rights |
Copyright © 2008 Elsevier Ltd. All rights reserved. |
op_doi |
https://doi.org/10.1016/j.jinsphys.2008.10.009 |
container_title |
Journal of Insect Physiology |
container_volume |
55 |
container_issue |
2 |
container_start_page |
130 |
op_container_end_page |
135 |
_version_ |
1785539621990432768 |