J 2024

Sensitivity of amphibian embryos to timing and magnitude of present and future thermal extremes

OBOROVÁ, Valentína; Monika SUGERKOVA a Lumír GVOŽDÍK

Základní údaje

Originální název

Sensitivity of amphibian embryos to timing and magnitude of present and future thermal extremes

Autoři

OBOROVÁ, Valentína; Monika SUGERKOVA a Lumír GVOŽDÍK

Vydání

JOURNAL OF EXPERIMENTAL ZOOLOGY PART A-ECOLOGICAL AND INTEGRATIVE PHYSIOLOGY, UNITED STATES, WILEY, 2024, 2471-5638

Další údaje

Jazyk

angličtina

Typ výsledku

Článek v odborném periodiku

Obor

10613 Zoology

Stát vydavatele

Spojené státy

Utajení

není předmětem státního či obchodního tajemství

Odkazy

Impakt faktor

Impact factor: 1.400

Označené pro přenos do RIV

Ano

Kód RIV

RIV/00216224:14310/24:00136415

Organizační jednotka

Přírodovědecká fakulta

EID Scopus

Klíčová slova anglicky

developmental acclimation; embryos; heat wave; life history; locomotor activity; newts

Štítky

Příznaky

Mezinárodní význam, Recenzováno
Změněno: 13. 1. 2025 14:28, Mgr. Lucie Jarošová, DiS.

Anotace

V originále

Ongoing climate change is increasing the frequency and intensity of extreme temperature events. Unlike the gradual increase on average environmental temperatures, these short-term and unpredictable temperature extremes impact population dynamics of ectotherms through their effect on individual survival. While previous research has predominantly focused on the survival rate of terrestrial embryos under acute heat stress, less attention has been dedicated to the nonlethal effects of ecologically realistic timing and magnitude of temperature extremes on aquatic embryos. In this study, we investigated the influence of the timing and magnitude of current and projected temperature extremes on embryonic life history traits and hatchling behavior in the alpine newt, Ichthyosaura alpestris. Using a factorial experiment under controlled laboratory conditions, we exposed 3- or 10-day-old embryos to different regimes of extreme temperatures for 3 days. Our results show that exposure to different extreme temperature regimes led to a shortened embryonic development time and an increase in hatchling length, while not significantly affecting embryonic survival. The duration of development was sensitive to the timing of temperature extremes, as early exposure accelerated embryo development. Exposure to temperature extremes during embryonic development heightened the exploratory activity of hatched larvae. We conclude that the timing and magnitude of ecologically realistic temperature extremes during embryogenesis have nonlethal effects on life history and behavioral traits. This suggests that species' vulnerability to climate change might be determined by other ecophysiological traits beyond embryonic thermal tolerance in temperate pond-breeding amphibians.