Thermal independence of energy management in a tailed amphibian

J 2020

Thermal independence of energy management in a tailed amphibian

BAŠKIERA, Senka a Lumír GVOŽDÍK

Základní údaje

Originální název

Thermal independence of energy management in a tailed amphibian

Autoři

BAŠKIERA, Senka a Lumír GVOŽDÍK

Vydání

Journal of Vertebrate Biology, Institute of Vertebrate Biology, Czech Academy of Sciences, 2020, 2694-7684

Další údaje

Jazyk

angličtina

Typ výsledku

Článek v odborném periodiku

Obor

10613 Zoology

Stát vydavatele

Česká republika

Utajení

není předmětem státního či obchodního tajemství

Odkazy

URL

Označené pro přenos do RIV

Ano

Kód RIV

RIV/00216224:14310/20:00116556

Organizační jednotka

Přírodovědecká fakulta

Klíčová slova anglicky

daily energy expenditure; energy allocation; locomotor activity; newt; standard metabolic rate

Štítky

14314020, rivok

Příznaky

Mezinárodní význam, Recenzováno

Změněno: 12. 1. 2021 13:13, Mgr. Marie Novosadová Šípková, DiS.

Anotace

V originále

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.

Návaznosti

MUNI/A/1436/2018, interní kód MU

Název: EKologické a EVOluční Principy v populacích obratlovců a jejich parazitů (Akronym: EKEVOP)

Investor: Masarykova univerzita, EKologické a EVOluční Principy v populacích obratlovců a jejich parazitů, DO R. 2020_Kategorie A - Specifický výzkum - Studentské výzkumné projekty

Citovat

BAŠKIERA, Senka a Lumír GVOŽDÍK. Thermal independence of energy management in a tailed amphibian. Journal of Vertebrate Biology. Institute of Vertebrate Biology, Czech Academy of Sciences, 2020, roč. 69, č. 4, s. 1-10. ISSN 2694-7684. Dostupné z: https://doi.org/10.25225/jvb.20057.

@article{1682285,
   author = {Baškiera, Senka and Gvoždík, Lumír},
   article_number = {4},
   doi = {https://doi.org/10.25225/jvb.20057},
   keywords = {daily energy expenditure; energy allocation; locomotor activity; newt; standard metabolic rate},
   language = {eng},
   issn = {2694-7684},
   journal = {Journal of Vertebrate Biology},
   title = {Thermal independence of energy management in a tailed amphibian},
   url = {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},
   volume = {69},
   year = {2020}
}

TY  - JOUR
ID  - 1682285
AU  - Baškiera, Senka - Gvoždík, Lumír
PY  - 2020
TI  - Thermal independence of energy management in a tailed amphibian
JF  - Journal of Vertebrate Biology
VL  - 69
IS  - 4
SP  - 1-10
EP  - 1-10
PB  - Institute of Vertebrate Biology, Czech Academy of Sciences
SN  - 26947684
KW  - daily energy expenditure
KW  - energy allocation
KW  - locomotor activity
KW  - newt
KW  - standard metabolic rate
UR  - 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
L2  - 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
N2  - 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.
ER  -

BAŠKIERA, Senka a Lumír GVOŽDÍK. Thermal independence of energy management in a tailed amphibian. \textit{Journal of Vertebrate Biology}. Institute of Vertebrate Biology, Czech Academy of Sciences, 2020, roč.~69, č.~4, s.~1-10. ISSN~2694-7684. Dostupné z: https://doi.org/10.25225/jvb.20057.

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