Intraspecific Functional Trait Responses to Experimental Warming Vary With Precipitation and Growth Form

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14310%2F25%3A00143435" target="_blank" >RIV/00216224:14310/25:00143435 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1111/jvs.70098" target="_blank" >https://doi.org/10.1111/jvs.70098</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1111/jvs.70098" target="_blank" >10.1111/jvs.70098</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Intraspecific Functional Trait Responses to Experimental Warming Vary With Precipitation and Growth Form

Popis výsledku v původním jazyce

Aims Rising ambient air temperatures may have adverse effects on alpine plant communities. To avoid extinction and to mitigate the demographic impacts of climate warming, migration and the ability to adapt become increasingly important. Experimental studies that simulate warming help test the extent and direction of functional adaptation. We ask: (1) To what extent does experimental warming drive intraspecific trait shifts in alpine species? (2) Do these trait responses vary across a precipitation gradient? (3) Do responses vary between forbs and graminoids?Location Alpine grasslands along a precipitation gradient in south-western Norway.Methods At three alpine sites spanning 1315-3601 mm of annual precipitation, we measured 10 plant functional traits across 17 species of graminoids, perennial forbs and dwarf shrubs. We compared the traits of plants in open-top warming chambers with those under ambient temperature conditions. Effect sizes were estimated using Cohen's d and analysed with respect to precipitation regimes and growth form.Results Plant height generally increased in response to warming across all sites for both growth forms. For other traits, warming effects were context-dependent and varied among species. At the medium precipitation site, plants showed shifts toward more conservative resource-use strategies in response to warming, characterised by increased leaf area and leaf dry matter content, along with reduced species leaf area and leaf nitrogen concentration. The enrichment in heavier nitrogen and carbon isotopes with warming is consistent with the expectation that warming selects for individuals with high water-use efficiency. Forbs generally exhibited stronger but more variable responses to warming than graminoids.Conclusion Warming induces trait shifts in alpine species, but responses depend on local conditions and growth form. Predicting alpine community responses to climate change requires trait-based approaches and research designs that allow assessing and exploring patterns in both taxonomic and environmental context dependencies.

Název v anglickém jazyce

Intraspecific Functional Trait Responses to Experimental Warming Vary With Precipitation and Growth Form

Popis výsledku anglicky

Aims Rising ambient air temperatures may have adverse effects on alpine plant communities. To avoid extinction and to mitigate the demographic impacts of climate warming, migration and the ability to adapt become increasingly important. Experimental studies that simulate warming help test the extent and direction of functional adaptation. We ask: (1) To what extent does experimental warming drive intraspecific trait shifts in alpine species? (2) Do these trait responses vary across a precipitation gradient? (3) Do responses vary between forbs and graminoids?Location Alpine grasslands along a precipitation gradient in south-western Norway.Methods At three alpine sites spanning 1315-3601 mm of annual precipitation, we measured 10 plant functional traits across 17 species of graminoids, perennial forbs and dwarf shrubs. We compared the traits of plants in open-top warming chambers with those under ambient temperature conditions. Effect sizes were estimated using Cohen's d and analysed with respect to precipitation regimes and growth form.Results Plant height generally increased in response to warming across all sites for both growth forms. For other traits, warming effects were context-dependent and varied among species. At the medium precipitation site, plants showed shifts toward more conservative resource-use strategies in response to warming, characterised by increased leaf area and leaf dry matter content, along with reduced species leaf area and leaf nitrogen concentration. The enrichment in heavier nitrogen and carbon isotopes with warming is consistent with the expectation that warming selects for individuals with high water-use efficiency. Forbs generally exhibited stronger but more variable responses to warming than graminoids.Conclusion Warming induces trait shifts in alpine species, but responses depend on local conditions and growth form. Predicting alpine community responses to climate change requires trait-based approaches and research designs that allow assessing and exploring patterns in both taxonomic and environmental context dependencies.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10611 - Plant sciences, botany

Projekt

—

Návaznosti

S - Specificky vyzkum na vysokych skolach<br>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

JOURNAL OF VEGETATION SCIENCE

ISSN

1100-9233

e-ISSN

1654-1103

Svazek periodika

36

Číslo periodika v rámci svazku

6

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

14

Strana od-do

1-14

Kód UT WoS článku

001650042500001

EID výsledku v databázi Scopus

2-s2.0-105026660306