Individual and combined effects of a simulated heatwave and the emerging Phytophthora ×multiformis on European alder species

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F62156489%3A43410%2F25%3A43927588" target="_blank" >RIV/62156489:43410/25:43927588 - isvavai.cz</a>

Result on the web

<a href="https://doi.org/10.1016/j.foreco.2025.123202" target="_blank" >https://doi.org/10.1016/j.foreco.2025.123202</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.foreco.2025.123202" target="_blank" >10.1016/j.foreco.2025.123202</a>

Result language

angličtina

Original language name

Individual and combined effects of a simulated heatwave and the emerging Phytophthora ×multiformis on European alder species

Original language description

The decline of alder forests induced by increasing temperatures and the &quot;Phytophthora xalni species complex&quot;, a group of emerging non-native pathogens, represents a major threat to riparian ecosystems across the Northern Hemisphere. The intensification of heatwaves and the pathogen spread and disease expansion to Southern Europe underscores the importance of studying the responses of alder species to these stressors. This study assesses individual and combined effects of a simulated extreme heatwave and infection by the pathogen P. xmultiformis on Alnus glutinosa and A. lusitanica to identify more resilient genotypes and thus help to mitigate alder decline. 1760 two-year-old alder saplings from 11 populations and 6 genetic groups from Sweden to Morocco were subjected to individual and combined treatments of heatwave and subsequent pathogen infection. Mortality, stem and leaf necrosis, morphological and water-exchange parameters were periodically assessed. Alnus lusitanica showed higher tolerance to heat stress than A. glutinosa. Responses to the combined stressors differed significantly between populations and genetic groups of both alder species. Plant mortality was highest in the treatment with combined stressors, particularly for the southern populations of A. lusitanica. High genetic diversity and previous exposure to extreme temperatures and Phytophthora may provide alder populations an adaptive advantage when responding to individual or combined stressors. Our results suggest that P. xmultiformis infection after heatwave events may aggravate alder decline in riparian ecosystems, particularly in A. lusitanica. Further research on the disease effects in riparian forests of A. lusitanica is essential for the conservation and management of this endemic species.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

40102 - Forestry

Project

<a href="/en/project/EF15_003%2F0000453" target="_blank" >EF15_003/0000453: Phytophthora Research Centre</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2025

Confidentiality

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

Name of the periodical

Forest Ecology and Management

ISSN

0378-1127

e-ISSN

1872-7042

Volume of the periodical

598

Issue of the periodical within the volume

15 December

Country of publishing house

NL - THE KINGDOM OF THE NETHERLANDS

Number of pages

11

Pages from-to

123202

UT code for WoS article

001600200000001

EID of the result in the Scopus database

2-s2.0-105018921159