Geographical Gradient of Fungal Decay Type in Norway Spruce Logs in Europe and Its Impact on Seedling Establishment DOI Creative Commons
Yu Fukasawa, Olga Orman, Václav Pouska

et al.

Journal of Biogeography, Journal Year: 2025, Volume and Issue: unknown

Published: April 7, 2025

ABSTRACT Aim Norway spruce ( Picea abies ) is a dominant tree species across Eurasia, and known to regenerate on decaying logs. Understanding its regeneration dynamics crucial for predicting forest sustainability under climate change. The decay type of the logs, indicative fungal capabilities lignin holocellulose traditionally categorised into white rot brown rot, markedly influences seedling density because reduces their establishment. As distribution wood types are affected by macroclimate, success establishment expected vary continentally may be further influenced goal present study examine relationship between frequencies densities assessing effects along climatic gradient. Location Fifteen sites in six European countries. Taxa [L.] H. Karst.). Methods We collected samples from logs naturally evaluate types. Spruce numbers were recorded occurrence certain types, density, relationships with climate, stand, log variables analysed using generalised linear mixed models (GLMM) structural equation modelling (SEM). Results White was dominating central Europe compared southern northern Europe, where prevalent. positively correlated heartwood, which explained high precipitation seasonality Europe. Main Conclusions indirectly through influence fungal‐mediated decomposition. Despite predictions northward shifts due change, slower rates limit expansion, potentially leading contraction species' range.

Language: Английский

Geographical Gradient of Fungal Decay Type in Norway Spruce Logs in Europe and Its Impact on Seedling Establishment DOI Creative Commons
Yu Fukasawa, Olga Orman, Václav Pouska

et al.

Journal of Biogeography, Journal Year: 2025, Volume and Issue: unknown

Published: April 7, 2025

ABSTRACT Aim Norway spruce ( Picea abies ) is a dominant tree species across Eurasia, and known to regenerate on decaying logs. Understanding its regeneration dynamics crucial for predicting forest sustainability under climate change. The decay type of the logs, indicative fungal capabilities lignin holocellulose traditionally categorised into white rot brown rot, markedly influences seedling density because reduces their establishment. As distribution wood types are affected by macroclimate, success establishment expected vary continentally may be further influenced goal present study examine relationship between frequencies densities assessing effects along climatic gradient. Location Fifteen sites in six European countries. Taxa [L.] H. Karst.). Methods We collected samples from logs naturally evaluate types. Spruce numbers were recorded occurrence certain types, density, relationships with climate, stand, log variables analysed using generalised linear mixed models (GLMM) structural equation modelling (SEM). Results White was dominating central Europe compared southern northern Europe, where prevalent. positively correlated heartwood, which explained high precipitation seasonality Europe. Main Conclusions indirectly through influence fungal‐mediated decomposition. Despite predictions northward shifts due change, slower rates limit expansion, potentially leading contraction species' range.

Language: Английский

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