A critical thermal transition driving spring phenology of Northern Hemisphere conifers

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00027073%3A_____%2F23%3AN0000029" target="_blank" >RIV/00027073:_____/23:N0000029 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/62156489:43410/23:43922497 RIV/00216208:11310/23:10470327

Výsledek na webu

<a href="https://onlinelibrary.wiley.com/doi/10.1111/gcb.16543" target="_blank" >https://onlinelibrary.wiley.com/doi/10.1111/gcb.16543</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1111/gcb.16543" target="_blank" >10.1111/gcb.16543</a>

Jazyk výsledku

angličtina

Název v původním jazyce

A critical thermal transition driving spring phenology of Northern Hemisphere conifers

Popis výsledku v původním jazyce

Despite growing interest in predicting plant phenological shifts, advanced spring phenology by global climate change remains debated. Evidence documenting either small or large advancement of spring phenology to rising temperature over the spatio-temporal scales implies a potential existence of a thermal threshold in the responses of forests to global warming. We collected a unique data set of xylem cell-wall-thickening onset dates in 20 coniferous species covering a broad mean annual temperature (MAT) gradient (-3.05 to 22.9 degrees C) across the Northern Hemisphere (latitudes 23 degrees-66 degrees N). Along the MAT gradient, we identified a threshold temperature (using segmented regression) of 4.9 +/- 1.1 degrees C, above which the response of xylem phenology to rising temperatures significantly decline. This threshold separates the Northern Hemisphere conifers into cold and warm thermal niches, with MAT and spring forcing being the primary drivers for the onset dates (estimated by linear and Bayesian mixed-effect models), respectively. The identified thermal threshold should be integrated into the Earth-System-Models for a better understanding of spring phenology in response to global warming and an improved prediction of global climate-carbon feedbacks.

Název v anglickém jazyce

A critical thermal transition driving spring phenology of Northern Hemisphere conifers

Popis výsledku anglicky

Despite growing interest in predicting plant phenological shifts, advanced spring phenology by global climate change remains debated. Evidence documenting either small or large advancement of spring phenology to rising temperature over the spatio-temporal scales implies a potential existence of a thermal threshold in the responses of forests to global warming. We collected a unique data set of xylem cell-wall-thickening onset dates in 20 coniferous species covering a broad mean annual temperature (MAT) gradient (-3.05 to 22.9 degrees C) across the Northern Hemisphere (latitudes 23 degrees-66 degrees N). Along the MAT gradient, we identified a threshold temperature (using segmented regression) of 4.9 +/- 1.1 degrees C, above which the response of xylem phenology to rising temperatures significantly decline. This threshold separates the Northern Hemisphere conifers into cold and warm thermal niches, with MAT and spring forcing being the primary drivers for the onset dates (estimated by linear and Bayesian mixed-effect models), respectively. The identified thermal threshold should be integrated into the Earth-System-Models for a better understanding of spring phenology in response to global warming and an improved prediction of global climate-carbon feedbacks.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10619 - Biodiversity conservation

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2023

Kód důvěrnosti údajů

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

Název periodika

Global Change Biology

ISSN

1354-1013

e-ISSN

1365-2486

Svazek periodika

29

Číslo periodika v rámci svazku

6

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

12

Strana od-do

1606-1617

Kód UT WoS článku

000927882200001

EID výsledku v databázi Scopus

2-s2.0-85143657030