Varying thermal dependence of life history traits predicts responses to environmental change in aquatic amphibian larvae

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081766%3A_____%2F25%3A00617405" target="_blank" >RIV/68081766:_____/25:00617405 - isvavai.cz</a>

Výsledek na webu

<a href="https://onlinelibrary.wiley.com/doi/epdf/10.1111/fwb.70007" target="_blank" >https://onlinelibrary.wiley.com/doi/epdf/10.1111/fwb.70007</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1111/fwb.70007" target="_blank" >10.1111/fwb.70007</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Varying thermal dependence of life history traits predicts responses to environmental change in aquatic amphibian larvae

Popis výsledku v původním jazyce

Many organisms respond to environmental changes through plastic modifications of their phenotypes. While phenotypic plasticity has been extensively studied in response to single factors in laboratory settings, organisms in nature face the combined effects of diverse biotic and abiotic stressors. These multistressor effects complicate predictions about the impact of environmental changes on population dynamics. One approach to improving predictive accuracy is to identify common mechanistic links to variations in life-history traits. In this study, we examined how biotic and abiotic stressors influence life-history variation, using predictions based on the differing thermal sensitivities of differentiation and growth rates in aquatic amphibian larvae and their subsequent impact on the behaviour of terrestrial juveniles. Using a mesocosm experiment, we exposed larvae of two sympatric newt species, Ichthyosaura alpestris and Lissotriton vulgaris, to combinations of a biotic factor (the presence of heterospecifics) and an abiotic factor (simulated drying). Our results revealed that simulated drying increased the availability of high water temperatures, thereby shortening the larval period as predicted by the high thermal sensitivity of differentiation rates. The presence of heterospecifics, not drying regime, increased the size at emergence in the larger species, I. alpestris, consistent with the relatively low thermal sensitivity of growth rates. The impact of drying carried over to the terrestrial juveniles, affecting their covered distance in both taxa, while the presence of heterospecifics influenced maximum voluntary speed during exploratory behaviour in I. alpestris juveniles. This suggests that the additive effects of biotic and abiotic factors on subsets of life-history and behavioural traits combine at the individual level, depending on species identity. Future research should focus on the interplay between ecologically-realistic thermal conditions and species interactions within pond larval assemblages to understand the impact of environmental changes on amphibian population dynamics.

Název v anglickém jazyce

Varying thermal dependence of life history traits predicts responses to environmental change in aquatic amphibian larvae

Popis výsledku anglicky

Many organisms respond to environmental changes through plastic modifications of their phenotypes. While phenotypic plasticity has been extensively studied in response to single factors in laboratory settings, organisms in nature face the combined effects of diverse biotic and abiotic stressors. These multistressor effects complicate predictions about the impact of environmental changes on population dynamics. One approach to improving predictive accuracy is to identify common mechanistic links to variations in life-history traits. In this study, we examined how biotic and abiotic stressors influence life-history variation, using predictions based on the differing thermal sensitivities of differentiation and growth rates in aquatic amphibian larvae and their subsequent impact on the behaviour of terrestrial juveniles. Using a mesocosm experiment, we exposed larvae of two sympatric newt species, Ichthyosaura alpestris and Lissotriton vulgaris, to combinations of a biotic factor (the presence of heterospecifics) and an abiotic factor (simulated drying). Our results revealed that simulated drying increased the availability of high water temperatures, thereby shortening the larval period as predicted by the high thermal sensitivity of differentiation rates. The presence of heterospecifics, not drying regime, increased the size at emergence in the larger species, I. alpestris, consistent with the relatively low thermal sensitivity of growth rates. The impact of drying carried over to the terrestrial juveniles, affecting their covered distance in both taxa, while the presence of heterospecifics influenced maximum voluntary speed during exploratory behaviour in I. alpestris juveniles. This suggests that the additive effects of biotic and abiotic factors on subsets of life-history and behavioural traits combine at the individual level, depending on species identity. Future research should focus on the interplay between ecologically-realistic thermal conditions and species interactions within pond larval assemblages to understand the impact of environmental changes on amphibian population dynamics.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

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OECD FORD obor

10618 - Ecology

Projekt

<a href="/cs/project/GA21-29169S" target="_blank" >GA21-29169S: Strategie sladkovodních ektotermů pro oteplující se svět: pohled od jedince po společenstva</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2025

Kód důvěrnosti údajů

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

Název periodika

Freshwater Biology

ISSN

0046-5070

e-ISSN

1365-2427

Svazek periodika

70

Číslo periodika v rámci svazku

2

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

15

Strana od-do

e70007

Kód UT WoS článku

001420423400001

EID výsledku v databázi Scopus

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