Variation in winter metabolic reduction between sympatric amphibians

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081766%3A_____%2F16%3A00461437" target="_blank" >RIV/68081766:_____/16:00461437 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.cbpa.2016.07.003" target="_blank" >http://dx.doi.org/10.1016/j.cbpa.2016.07.003</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.cbpa.2016.07.003" target="_blank" >10.1016/j.cbpa.2016.07.003</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Variation in winter metabolic reduction between sympatric amphibians

Popis výsledku v původním jazyce

Distribution and abundance of temperate ectotherms is determined, in part, by the depletion of their limited caloric reserves during wintering. The magnitude of winter energy drain depends on the species-specific capacity to seasonally modify the minimal maintenance costs. We examined seasonal variation of minimum oxygen consumption between two newt species, Ichthyosaura alpestris and Lissotriton vulgaris. Oxygen consumption was measured in both species during their active season (daily temperature range = 12–22 °C) and wintering period (4 °C) at 4 °C and 8 °C. The seasonal reduction in metabolic rates differed between species and experimental temperatures. Wintering newts reduced their metabolic rates at 4 °C and 8 °C in I. alpestris, but only at 8 °C in L. vulgaris. Both species reduced the thermal sensitivity of oxygen consumption during wintering. Theoretical calculations of winter depletion of caloric reserves under various thermal conditions revealed that seasonal metabolic reduction is more effective in I. alpestris than in L. vulgaris, and its effectiveness will increase with the proportion of warmer days during wintering period. The variation in winter metabolic reduction between sympatric newt species potentially contributes to their distribution patterns and population dynamics undernclimate change.

Název v anglickém jazyce

Variation in winter metabolic reduction between sympatric amphibians

Popis výsledku anglicky

Distribution and abundance of temperate ectotherms is determined, in part, by the depletion of their limited caloric reserves during wintering. The magnitude of winter energy drain depends on the species-specific capacity to seasonally modify the minimal maintenance costs. We examined seasonal variation of minimum oxygen consumption between two newt species, Ichthyosaura alpestris and Lissotriton vulgaris. Oxygen consumption was measured in both species during their active season (daily temperature range = 12–22 °C) and wintering period (4 °C) at 4 °C and 8 °C. The seasonal reduction in metabolic rates differed between species and experimental temperatures. Wintering newts reduced their metabolic rates at 4 °C and 8 °C in I. alpestris, but only at 8 °C in L. vulgaris. Both species reduced the thermal sensitivity of oxygen consumption during wintering. Theoretical calculations of winter depletion of caloric reserves under various thermal conditions revealed that seasonal metabolic reduction is more effective in I. alpestris than in L. vulgaris, and its effectiveness will increase with the proportion of warmer days during wintering period. The variation in winter metabolic reduction between sympatric newt species potentially contributes to their distribution patterns and population dynamics undernclimate change.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

EG - Zoologie

OECD FORD obor

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Projekt

<a href="/cs/project/GA15-07140S" target="_blank" >GA15-07140S: Termální nika: zhodnocení současného konceptu u ektotermních obratlovců</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2016

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Comparative Biochemistry and Physiology A-Molecular & Integrative Physiology

ISSN

1095-6433

e-ISSN

—

Svazek periodika

201

Číslo periodika v rámci svazku

November

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

5

Strana od-do

110-114

Kód UT WoS článku

000385325700014

EID výsledku v databázi Scopus

2-s2.0-84978422608