Similar metabolic rate-temperature relationships after acclimation at constant and fluctuating temperatures in caterpillars of a sub-Antarctic moth.
Temperature compensation in whole-animal metabolic rate is one of the responses thought, controversially, to characterize insects from low temperature environments. Temperature compensation may either involve a change in absolute values of metabolic rates or a change in the slope of the metabolic ra...
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ftunivwestonta:oai:ir.lib.uwo.ca:biologypub-1093 2023-10-01T03:50:58+02:00 Similar metabolic rate-temperature relationships after acclimation at constant and fluctuating temperatures in caterpillars of a sub-Antarctic moth. Chown, Steven L Haupt, Tanya M Sinclair, Brent J 2016-02-01T08:00:00Z application/pdf https://ir.lib.uwo.ca/biologypub/90 https://doi.org/10.1016/j.jinsphys.2015.11.010 https://ir.lib.uwo.ca/context/biologypub/article/1093/viewcontent/Chown_2016.pdf unknown Scholarship@Western https://ir.lib.uwo.ca/biologypub/90 doi:10.1016/j.jinsphys.2015.11.010 https://ir.lib.uwo.ca/context/biologypub/article/1093/viewcontent/Chown_2016.pdf Biology Publications Acclimatization Animals Antarctic Regions Environment Kinetics Moths Temperature Biology article 2016 ftunivwestonta https://doi.org/10.1016/j.jinsphys.2015.11.010 2023-09-03T07:01:08Z Temperature compensation in whole-animal metabolic rate is one of the responses thought, controversially, to characterize insects from low temperature environments. Temperature compensation may either involve a change in absolute values of metabolic rates or a change in the slope of the metabolic rate - temperature relationship. Moreover, assessments of compensation may be complicated by animal responses to fluctuating temperatures. Here we examined whole animal metabolic rates, at 0 °C, 5 °C, 10 °C and 15 °C, in caterpillars of the sub-Antarctic moth, Pringleophaga marioni Viette (Tineidae), following one week acclimations to 5 °C, 10 °C and 15 °C, and fluctuating temperatures of 0-10 °C, 5-15 °C, and 10-20 °C. Over the short term, temperature compensation was found following acclimation to 5 °C, but the effect size was small (3-14%). By comparison with caterpillars of 13 other lepidopteran species, no effect of temperature compensation was present, with the relationship between metabolic rate and temperature having a Q10 of 2 among species, and no effect of latitude on temperature-corrected metabolic rate. Fluctuating temperature acclimations for the most part had little effect compared with constant temperatures of the same mean value. Nonetheless, fluctuating temperatures of 5-15 °C resulted in lower metabolic rates at all test temperatures compared with constant 10 °C acclimation, in keeping with expectations from the literature. Absence of significant responses, or those of large effect, in metabolic rates in response to acclimation, may be a consequence of the unpredictable temperature variation over the short-term on sub-Antarctic Marion Island, to which P. marioni is endemic. Article in Journal/Newspaper Antarc* Antarctic Marion Island The University of Western Ontario: Scholarship@Western Antarctic Journal of Insect Physiology 85 10 16 |
institution |
Open Polar |
collection |
The University of Western Ontario: Scholarship@Western |
op_collection_id |
ftunivwestonta |
language |
unknown |
topic |
Acclimatization Animals Antarctic Regions Environment Kinetics Moths Temperature Biology |
spellingShingle |
Acclimatization Animals Antarctic Regions Environment Kinetics Moths Temperature Biology Chown, Steven L Haupt, Tanya M Sinclair, Brent J Similar metabolic rate-temperature relationships after acclimation at constant and fluctuating temperatures in caterpillars of a sub-Antarctic moth. |
topic_facet |
Acclimatization Animals Antarctic Regions Environment Kinetics Moths Temperature Biology |
description |
Temperature compensation in whole-animal metabolic rate is one of the responses thought, controversially, to characterize insects from low temperature environments. Temperature compensation may either involve a change in absolute values of metabolic rates or a change in the slope of the metabolic rate - temperature relationship. Moreover, assessments of compensation may be complicated by animal responses to fluctuating temperatures. Here we examined whole animal metabolic rates, at 0 °C, 5 °C, 10 °C and 15 °C, in caterpillars of the sub-Antarctic moth, Pringleophaga marioni Viette (Tineidae), following one week acclimations to 5 °C, 10 °C and 15 °C, and fluctuating temperatures of 0-10 °C, 5-15 °C, and 10-20 °C. Over the short term, temperature compensation was found following acclimation to 5 °C, but the effect size was small (3-14%). By comparison with caterpillars of 13 other lepidopteran species, no effect of temperature compensation was present, with the relationship between metabolic rate and temperature having a Q10 of 2 among species, and no effect of latitude on temperature-corrected metabolic rate. Fluctuating temperature acclimations for the most part had little effect compared with constant temperatures of the same mean value. Nonetheless, fluctuating temperatures of 5-15 °C resulted in lower metabolic rates at all test temperatures compared with constant 10 °C acclimation, in keeping with expectations from the literature. Absence of significant responses, or those of large effect, in metabolic rates in response to acclimation, may be a consequence of the unpredictable temperature variation over the short-term on sub-Antarctic Marion Island, to which P. marioni is endemic. |
format |
Article in Journal/Newspaper |
author |
Chown, Steven L Haupt, Tanya M Sinclair, Brent J |
author_facet |
Chown, Steven L Haupt, Tanya M Sinclair, Brent J |
author_sort |
Chown, Steven L |
title |
Similar metabolic rate-temperature relationships after acclimation at constant and fluctuating temperatures in caterpillars of a sub-Antarctic moth. |
title_short |
Similar metabolic rate-temperature relationships after acclimation at constant and fluctuating temperatures in caterpillars of a sub-Antarctic moth. |
title_full |
Similar metabolic rate-temperature relationships after acclimation at constant and fluctuating temperatures in caterpillars of a sub-Antarctic moth. |
title_fullStr |
Similar metabolic rate-temperature relationships after acclimation at constant and fluctuating temperatures in caterpillars of a sub-Antarctic moth. |
title_full_unstemmed |
Similar metabolic rate-temperature relationships after acclimation at constant and fluctuating temperatures in caterpillars of a sub-Antarctic moth. |
title_sort |
similar metabolic rate-temperature relationships after acclimation at constant and fluctuating temperatures in caterpillars of a sub-antarctic moth. |
publisher |
Scholarship@Western |
publishDate |
2016 |
url |
https://ir.lib.uwo.ca/biologypub/90 https://doi.org/10.1016/j.jinsphys.2015.11.010 https://ir.lib.uwo.ca/context/biologypub/article/1093/viewcontent/Chown_2016.pdf |
geographic |
Antarctic |
geographic_facet |
Antarctic |
genre |
Antarc* Antarctic Marion Island |
genre_facet |
Antarc* Antarctic Marion Island |
op_source |
Biology Publications |
op_relation |
https://ir.lib.uwo.ca/biologypub/90 doi:10.1016/j.jinsphys.2015.11.010 https://ir.lib.uwo.ca/context/biologypub/article/1093/viewcontent/Chown_2016.pdf |
op_doi |
https://doi.org/10.1016/j.jinsphys.2015.11.010 |
container_title |
Journal of Insect Physiology |
container_volume |
85 |
container_start_page |
10 |
op_container_end_page |
16 |
_version_ |
1778530100003733504 |