Thermal independence of energy management in a tailed amphibian
Identifikátory výsledku
Kód výsledku v IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14310%2F20%3A00116556" target="_blank" >RIV/00216224:14310/20:00116556 - isvavai.cz</a>
Nalezeny alternativní kódy
RIV/68081766:_____/20:00535434
Výsledek na webu
<a href="https://bioone.org/journals/journal-of-vertebrate-biology/volume-69/issue-4/jvb.20057/Thermal-independence-of-energy-management-in-a-tailed-amphibian/10.25225/jvb.20057.full" target="_blank" >https://bioone.org/journals/journal-of-vertebrate-biology/volume-69/issue-4/jvb.20057/Thermal-independence-of-energy-management-in-a-tailed-amphibian/10.25225/jvb.20057.full</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.25225/jvb.20057" target="_blank" >10.25225/jvb.20057</a>
Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
Thermal independence of energy management in a tailed amphibian
Popis výsledku v původním jazyce
The relationship between the minimum metabolic requirements (standard metabolic rate, SMR)and energy costs of non-mandatory physiological functions and behaviour is fundamental for understanding species responses to changing environmental conditions. Theory predicts that ectotherms manage their energy budget depending on whether the relationship between SMR and energy available for other tasks is negative (allocation model), neutral (independent model), or positive (performance model). Energy management has received more attention in endotherms than in ectotherms, where metabolic-behavioural relations may be affected by body temperature variation. We examined the predictions of energy management models at four body temperatures in alpine newts, Ichthyosaura alpestris, under laboratory conditions. High SMR reduced the amount of energy dedicated to food digestion and locomotor activity. The maximum metabolic rate for food digestion was positively related to SMR, while its relationship with locomotor activity was inconclusive. Body temperature affected the intercept but not the slope of these relationships. We conclude that (i) newts manage their energy budget according to the allocation model, (ii) energy management is insensitive to body temperature variation, and (iii) determining energy management models using indirect estimates may be misleading. These findings improve our understanding of the eco-evolutionary significance of SMR variation in tailed amphibians and other ectotherms.
Název v anglickém jazyce
Thermal independence of energy management in a tailed amphibian
Popis výsledku anglicky
The relationship between the minimum metabolic requirements (standard metabolic rate, SMR)and energy costs of non-mandatory physiological functions and behaviour is fundamental for understanding species responses to changing environmental conditions. Theory predicts that ectotherms manage their energy budget depending on whether the relationship between SMR and energy available for other tasks is negative (allocation model), neutral (independent model), or positive (performance model). Energy management has received more attention in endotherms than in ectotherms, where metabolic-behavioural relations may be affected by body temperature variation. We examined the predictions of energy management models at four body temperatures in alpine newts, Ichthyosaura alpestris, under laboratory conditions. High SMR reduced the amount of energy dedicated to food digestion and locomotor activity. The maximum metabolic rate for food digestion was positively related to SMR, while its relationship with locomotor activity was inconclusive. Body temperature affected the intercept but not the slope of these relationships. We conclude that (i) newts manage their energy budget according to the allocation model, (ii) energy management is insensitive to body temperature variation, and (iii) determining energy management models using indirect estimates may be misleading. These findings improve our understanding of the eco-evolutionary significance of SMR variation in tailed amphibians and other ectotherms.
Klasifikace
Druh
J<sub>imp</sub> - Článek v periodiku v databázi Web of Science
CEP obor
—
OECD FORD obor
10613 - Zoology
Návaznosti výsledku
Projekt
<a href="/cs/project/GA17-15480S" target="_blank" >GA17-15480S: Studenokrevní sladkovodní živočichové a klimatická změna: vliv fenotypové plasticity na životní cykly a trofické interakce</a><br>
Návaznosti
S - Specificky vyzkum na vysokych skolach
Ostatní
Rok uplatnění
2020
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Údaje specifické pro druh výsledku
Název periodika
Journal of Vertebrate Biology
ISSN
2694-7684
e-ISSN
—
Svazek periodika
69
Číslo periodika v rámci svazku
4
Stát vydavatele periodika
CZ - Česká republika
Počet stran výsledku
10
Strana od-do
1-10
Kód UT WoS článku
000588646400008
EID výsledku v databázi Scopus
2-s2.0-85093940623