Temporal and spatial metabolic rate variation in the Antarctic springtail Gomphiocephalus hodgsoni
Spatial and temporal environmental variation in terrestrial Antarctic ecosystems are known to impact species strongly at a local scale, but the ways in which organisms respond (e.g. physiologically, behaviourally) to such variation are poorly understood. Further, very few studies have attempted to a...
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ftanucanberra:oai:openresearch-repository.anu.edu.au:1885/259877 2024-01-14T10:02:26+01:00 Temporal and spatial metabolic rate variation in the Antarctic springtail Gomphiocephalus hodgsoni McGaughran, Angela Convey, Peter Redding, G.P. Stevens, Mark I. application/pdf http://hdl.handle.net/1885/259877 https://doi.org/10.1016/j.jinsphys.2009.09.003 https://openresearch-repository.anu.edu.au/bitstream/1885/259877/3/01_McGaughran_Temporal_and_spatial_metabolic_2010.pdf.jpg en_AU eng Elsevier 0022-1910 http://hdl.handle.net/1885/259877 doi:10.1016/j.jinsphys.2009.09.003 https://openresearch-repository.anu.edu.au/bitstream/1885/259877/3/01_McGaughran_Temporal_and_spatial_metabolic_2010.pdf.jpg © 2009 Elsevier Ltd. Journal of Insect Physiology Collembola Metabolic cold adaptation Metabolism Microclimate Physiological variability Polar Journal article ftanucanberra https://doi.org/10.1016/j.jinsphys.2009.09.003 2023-12-15T09:39:21Z Spatial and temporal environmental variation in terrestrial Antarctic ecosystems are known to impact species strongly at a local scale, but the ways in which organisms respond (e.g. physiologically, behaviourally) to such variation are poorly understood. Further, very few studies have attempted to assess inter-annual variability of such responses. Building on previous work demonstrating intra-seasonal variation in standard metabolic rate in the springtail Gomphiocephalushodgsoni, we investigated variation in metabolic activity of G. hodgsoni across two austral summer periods at Cape Bird, Ross Island. We also examined the influence of spatial variation by comparing metabolic rates of G. hodgsoni at Cape Bird with those from two other isolated continental locations within Victoria Land (Garwood and Taylor Valleys). We found significant differences between metabolic rates across the 2 years of measurement at Cape Bird. In addition, standard metabolic rates of G. hodgsoni obtained from Garwood and Taylor Valleys were significantly higher than those at Cape Bird where habitats are comparable, but environmental characteristics differ (e.g. microclimatic temperatures are higher). We discuss potential underlying causes of these metabolic rate variation patterns, including those related to differences among individuals (e.g. physiological and genetic differences), locations (e.g. habitat quality and microclimatic regime differences) and populations (e.g. acclimation differences among G. hodgsoni populations in the form of metabolic cold adaptation (MCA)). AM was supported by a Sir Robin Irvine Doctoral Scholarship and a Top Achievers Doctoral Scholarship Article in Journal/Newspaper Antarc* Antarctic Antarctic Springtail Gomphiocephalus hodgsoni Ross Island Victoria Land Springtail Australian National University: ANU Digital Collections Antarctic The Antarctic Austral Victoria Land Ross Island Garwood ENVELOPE(164.283,164.283,-78.033,-78.033) Cape Bird ENVELOPE(-38.060,-38.060,-54.004,-54.004) Journal of Insect Physiology 56 1 57 64 |
institution |
Open Polar |
collection |
Australian National University: ANU Digital Collections |
op_collection_id |
ftanucanberra |
language |
English |
topic |
Collembola Metabolic cold adaptation Metabolism Microclimate Physiological variability Polar |
spellingShingle |
Collembola Metabolic cold adaptation Metabolism Microclimate Physiological variability Polar McGaughran, Angela Convey, Peter Redding, G.P. Stevens, Mark I. Temporal and spatial metabolic rate variation in the Antarctic springtail Gomphiocephalus hodgsoni |
topic_facet |
Collembola Metabolic cold adaptation Metabolism Microclimate Physiological variability Polar |
description |
Spatial and temporal environmental variation in terrestrial Antarctic ecosystems are known to impact species strongly at a local scale, but the ways in which organisms respond (e.g. physiologically, behaviourally) to such variation are poorly understood. Further, very few studies have attempted to assess inter-annual variability of such responses. Building on previous work demonstrating intra-seasonal variation in standard metabolic rate in the springtail Gomphiocephalushodgsoni, we investigated variation in metabolic activity of G. hodgsoni across two austral summer periods at Cape Bird, Ross Island. We also examined the influence of spatial variation by comparing metabolic rates of G. hodgsoni at Cape Bird with those from two other isolated continental locations within Victoria Land (Garwood and Taylor Valleys). We found significant differences between metabolic rates across the 2 years of measurement at Cape Bird. In addition, standard metabolic rates of G. hodgsoni obtained from Garwood and Taylor Valleys were significantly higher than those at Cape Bird where habitats are comparable, but environmental characteristics differ (e.g. microclimatic temperatures are higher). We discuss potential underlying causes of these metabolic rate variation patterns, including those related to differences among individuals (e.g. physiological and genetic differences), locations (e.g. habitat quality and microclimatic regime differences) and populations (e.g. acclimation differences among G. hodgsoni populations in the form of metabolic cold adaptation (MCA)). AM was supported by a Sir Robin Irvine Doctoral Scholarship and a Top Achievers Doctoral Scholarship |
format |
Article in Journal/Newspaper |
author |
McGaughran, Angela Convey, Peter Redding, G.P. Stevens, Mark I. |
author_facet |
McGaughran, Angela Convey, Peter Redding, G.P. Stevens, Mark I. |
author_sort |
McGaughran, Angela |
title |
Temporal and spatial metabolic rate variation in the Antarctic springtail Gomphiocephalus hodgsoni |
title_short |
Temporal and spatial metabolic rate variation in the Antarctic springtail Gomphiocephalus hodgsoni |
title_full |
Temporal and spatial metabolic rate variation in the Antarctic springtail Gomphiocephalus hodgsoni |
title_fullStr |
Temporal and spatial metabolic rate variation in the Antarctic springtail Gomphiocephalus hodgsoni |
title_full_unstemmed |
Temporal and spatial metabolic rate variation in the Antarctic springtail Gomphiocephalus hodgsoni |
title_sort |
temporal and spatial metabolic rate variation in the antarctic springtail gomphiocephalus hodgsoni |
publisher |
Elsevier |
url |
http://hdl.handle.net/1885/259877 https://doi.org/10.1016/j.jinsphys.2009.09.003 https://openresearch-repository.anu.edu.au/bitstream/1885/259877/3/01_McGaughran_Temporal_and_spatial_metabolic_2010.pdf.jpg |
long_lat |
ENVELOPE(164.283,164.283,-78.033,-78.033) ENVELOPE(-38.060,-38.060,-54.004,-54.004) |
geographic |
Antarctic The Antarctic Austral Victoria Land Ross Island Garwood Cape Bird |
geographic_facet |
Antarctic The Antarctic Austral Victoria Land Ross Island Garwood Cape Bird |
genre |
Antarc* Antarctic Antarctic Springtail Gomphiocephalus hodgsoni Ross Island Victoria Land Springtail |
genre_facet |
Antarc* Antarctic Antarctic Springtail Gomphiocephalus hodgsoni Ross Island Victoria Land Springtail |
op_source |
Journal of Insect Physiology |
op_relation |
0022-1910 http://hdl.handle.net/1885/259877 doi:10.1016/j.jinsphys.2009.09.003 https://openresearch-repository.anu.edu.au/bitstream/1885/259877/3/01_McGaughran_Temporal_and_spatial_metabolic_2010.pdf.jpg |
op_rights |
© 2009 Elsevier Ltd. |
op_doi |
https://doi.org/10.1016/j.jinsphys.2009.09.003 |
container_title |
Journal of Insect Physiology |
container_volume |
56 |
container_issue |
1 |
container_start_page |
57 |
op_container_end_page |
64 |
_version_ |
1788057451790073856 |