Individual (co)variation in thermal reaction norms of standard and maximal metabolic rates in wild-caught slimy salamanders
Standard metabolic rate (SMR) and maximal metabolic rate (MMR) are fundamental measures in ecology and evolution because they set the scope within which animals can perform activities that directly affect fitness. In ectotherms, both SMR and MMR are repeatable over time when measured at a single amb...
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ftdeakinunifig:oai:figshare.com:article/20925709 2023-05-15T15:33:05+02:00 Individual (co)variation in thermal reaction norms of standard and maximal metabolic rates in wild-caught slimy salamanders Vincent Careau M E Gifford Peter Biro 2014-10-01T00:00:00Z http://hdl.handle.net/10536/DRO/DU:30071506 https://figshare.com/articles/journal_contribution/Individual_co_variation_in_thermal_reaction_norms_of_standard_and_maximal_metabolic_rates_in_wild-caught_slimy_salamanders/20925709 unknown http://hdl.handle.net/10536/DRO/DU:30071506 https://figshare.com/articles/journal_contribution/Individual_co_variation_in_thermal_reaction_norms_of_standard_and_maximal_metabolic_rates_in_wild-caught_slimy_salamanders/20925709 All Rights Reserved Uncategorized Activation energy Basal metabolic rate Metabolic cold adaptation Performance Plasticity integration Q10 VO2-max Q 10 Science & Technology Life Sciences & Biomedicine Ecology Environmental Sciences & Ecology (10) JUVENILE ATLANTIC SALMON AEROBIC CAPACITY MODEL OXYGEN-CONSUMPTION ENERGY-METABOLISM COLD ADAPTATION INTERINDIVIDUAL VARIATION PHENOTYPIC PLASTICITY REPEATABILITY TEMPERATURE Text Journal contribution 2014 ftdeakinunifig 2022-11-17T21:24:06Z Standard metabolic rate (SMR) and maximal metabolic rate (MMR) are fundamental measures in ecology and evolution because they set the scope within which animals can perform activities that directly affect fitness. In ectotherms, both SMR and MMR are repeatable over time when measured at a single ambient temperature (Ta). Many ectotherms encounter variable Ta from day to day and over their lifetime, yet it is currently unknown whether individual differences hold across an ecologically relevant range of Ta (i.e. thermal repeatability; RT). Moreover, it is possible that thermal sensitivity of SMR and MMR are important individual attributes, and correlated with one another, but virtually nothing is known about this at present. We measured SMR and MMR across an ecologically relevant Ta gradient (i.e. from 10 to 25 °C) in wild-caught salamanders (Plethodon albagula) and found that RT was significant in both traits. SMR and MMR were also positively correlated, resulting in a lower RT in absolute and factorial aerobic scopes (AAS and FAS). We found significant individual differences in thermal sensitivity for both SMR and MMR, but not for AAS and FAS. The intercept (at Ta = 0 °C) and the slope of the thermal reaction norms were negatively correlated; individuals with low MR at low Ta had a higher thermal sensitivity. Finally, individuals with a high thermal sensitivity for SMR also had high thermal sensitivity for MMR. Our results suggest that natural selection occurring over variable Ta may efficiently target the overall level of - and thermal sensitivity in - SMR and MMR. However, this may not be the case for metabolic scopes, as the positive correlation between SMR and MMR, in addition to their combined changes in response to Ta, yielded little individual variation in AAS and FAS. Our results support the idea that organisms with low metabolism at low Ta have a high metabolic thermal sensitivity as a compensatory mechanism to benefit in periods of warmer environmental conditions. Hence, our study reveals the ... Other Non-Article Part of Journal/Newspaper Atlantic salmon DRO - Deakin Research Online |
institution |
Open Polar |
collection |
DRO - Deakin Research Online |
op_collection_id |
ftdeakinunifig |
language |
unknown |
topic |
Uncategorized Activation energy Basal metabolic rate Metabolic cold adaptation Performance Plasticity integration Q10 VO2-max Q 10 Science & Technology Life Sciences & Biomedicine Ecology Environmental Sciences & Ecology (10) JUVENILE ATLANTIC SALMON AEROBIC CAPACITY MODEL OXYGEN-CONSUMPTION ENERGY-METABOLISM COLD ADAPTATION INTERINDIVIDUAL VARIATION PHENOTYPIC PLASTICITY REPEATABILITY TEMPERATURE |
spellingShingle |
Uncategorized Activation energy Basal metabolic rate Metabolic cold adaptation Performance Plasticity integration Q10 VO2-max Q 10 Science & Technology Life Sciences & Biomedicine Ecology Environmental Sciences & Ecology (10) JUVENILE ATLANTIC SALMON AEROBIC CAPACITY MODEL OXYGEN-CONSUMPTION ENERGY-METABOLISM COLD ADAPTATION INTERINDIVIDUAL VARIATION PHENOTYPIC PLASTICITY REPEATABILITY TEMPERATURE Vincent Careau M E Gifford Peter Biro Individual (co)variation in thermal reaction norms of standard and maximal metabolic rates in wild-caught slimy salamanders |
topic_facet |
Uncategorized Activation energy Basal metabolic rate Metabolic cold adaptation Performance Plasticity integration Q10 VO2-max Q 10 Science & Technology Life Sciences & Biomedicine Ecology Environmental Sciences & Ecology (10) JUVENILE ATLANTIC SALMON AEROBIC CAPACITY MODEL OXYGEN-CONSUMPTION ENERGY-METABOLISM COLD ADAPTATION INTERINDIVIDUAL VARIATION PHENOTYPIC PLASTICITY REPEATABILITY TEMPERATURE |
description |
Standard metabolic rate (SMR) and maximal metabolic rate (MMR) are fundamental measures in ecology and evolution because they set the scope within which animals can perform activities that directly affect fitness. In ectotherms, both SMR and MMR are repeatable over time when measured at a single ambient temperature (Ta). Many ectotherms encounter variable Ta from day to day and over their lifetime, yet it is currently unknown whether individual differences hold across an ecologically relevant range of Ta (i.e. thermal repeatability; RT). Moreover, it is possible that thermal sensitivity of SMR and MMR are important individual attributes, and correlated with one another, but virtually nothing is known about this at present. We measured SMR and MMR across an ecologically relevant Ta gradient (i.e. from 10 to 25 °C) in wild-caught salamanders (Plethodon albagula) and found that RT was significant in both traits. SMR and MMR were also positively correlated, resulting in a lower RT in absolute and factorial aerobic scopes (AAS and FAS). We found significant individual differences in thermal sensitivity for both SMR and MMR, but not for AAS and FAS. The intercept (at Ta = 0 °C) and the slope of the thermal reaction norms were negatively correlated; individuals with low MR at low Ta had a higher thermal sensitivity. Finally, individuals with a high thermal sensitivity for SMR also had high thermal sensitivity for MMR. Our results suggest that natural selection occurring over variable Ta may efficiently target the overall level of - and thermal sensitivity in - SMR and MMR. However, this may not be the case for metabolic scopes, as the positive correlation between SMR and MMR, in addition to their combined changes in response to Ta, yielded little individual variation in AAS and FAS. Our results support the idea that organisms with low metabolism at low Ta have a high metabolic thermal sensitivity as a compensatory mechanism to benefit in periods of warmer environmental conditions. Hence, our study reveals the ... |
format |
Other Non-Article Part of Journal/Newspaper |
author |
Vincent Careau M E Gifford Peter Biro |
author_facet |
Vincent Careau M E Gifford Peter Biro |
author_sort |
Vincent Careau |
title |
Individual (co)variation in thermal reaction norms of standard and maximal metabolic rates in wild-caught slimy salamanders |
title_short |
Individual (co)variation in thermal reaction norms of standard and maximal metabolic rates in wild-caught slimy salamanders |
title_full |
Individual (co)variation in thermal reaction norms of standard and maximal metabolic rates in wild-caught slimy salamanders |
title_fullStr |
Individual (co)variation in thermal reaction norms of standard and maximal metabolic rates in wild-caught slimy salamanders |
title_full_unstemmed |
Individual (co)variation in thermal reaction norms of standard and maximal metabolic rates in wild-caught slimy salamanders |
title_sort |
individual (co)variation in thermal reaction norms of standard and maximal metabolic rates in wild-caught slimy salamanders |
publishDate |
2014 |
url |
http://hdl.handle.net/10536/DRO/DU:30071506 https://figshare.com/articles/journal_contribution/Individual_co_variation_in_thermal_reaction_norms_of_standard_and_maximal_metabolic_rates_in_wild-caught_slimy_salamanders/20925709 |
genre |
Atlantic salmon |
genre_facet |
Atlantic salmon |
op_relation |
http://hdl.handle.net/10536/DRO/DU:30071506 https://figshare.com/articles/journal_contribution/Individual_co_variation_in_thermal_reaction_norms_of_standard_and_maximal_metabolic_rates_in_wild-caught_slimy_salamanders/20925709 |
op_rights |
All Rights Reserved |
_version_ |
1766363552092782592 |