Three decades of understorey vegetation change in Quercus‐dominated forests as a result of increasing canopy mortality and global change symptoms DOI Creative Commons
Janez Kermavnar, Lado Kutnar

Journal of Vegetation Science, Год журнала: 2024, Номер 35(6)

Опубликована: Ноя. 1, 2024

Abstract Questions The long‐term response of understorey vegetation to increasing tree mortality has rarely been addressed in resurvey studies. For two Quercus ‐dominated forest types, we asked: (a) How did overstorey alterations, induced by canopy mortality, affect diversity and composition? (b) Is there a signal global change effects on communities? (c) Are these assemblages experiencing homogenization process? Location Five sites robur (QR) four Q. petraea (QP) forests, Slovenia. Methods We studied changes vascular plants the layer from 1992/1993 2023 across 45 permanent 20 m × plots QR QP respectively. Vegetation surveys were carried out following standard Braun‐Blanquet method. compared original with recent resurveys using multivariate analysis, ecological indicator values (EIV), plant traits methods that quantify individual species. Results Since early 1990s, cover decreased 95% an average 55% QR, whereas it remained relatively high (77%) plots. This resulted denser significant increase plot‐level species richness but slight decrease forests. extensive loss disturbance forests caused composition. Species turnover was driven colonization new disturbance‐tolerant taxa characterized ruderal traits, compositional shift greater extent due losses. detected process thermophilization (increase EIV‐temperature), suggesting effect rapid climatic warming. Understorey communities are now more similar each other than 30 years ago, indicating beta‐diversity (floristic homogenization). Conclusions Despite some common trends, responses type‐specific. Our study presents evidence triggered increased (a strong local driver particularly plots) also points symptoms (thermophilization, homogenization), which acted rather independently observed decline cover.

Язык: Английский

New indicator species for associations within mesotrophic oak-hornbeam forests in Poland DOI Creative Commons
Grzegorz J. Wolski, Zbigniew Celka, Jolanta Marciniuk

и другие.

Ecological Indicators, Год журнала: 2025, Номер 173, С. 113339 - 113339

Опубликована: Март 31, 2025

Язык: Английский

Процитировано

1
Plant diversity decrease and directional species turnover induced by shifting overstory dominance in the oak-hornbeam forest reserve over 50 years DOI Creative Commons
Janez Kermavnar, Lado Kutnar

Flora, Год журнала: 2025, Номер unknown, С. 152742 - 152742

Опубликована: Апрель 1, 2025

Язык: Английский

Процитировано

0
Three decades of understorey vegetation change in Quercus‐dominated forests as a result of increasing canopy mortality and global change symptoms DOI Creative Commons
Janez Kermavnar, Lado Kutnar

Journal of Vegetation Science, Год журнала: 2024, Номер 35(6)

Опубликована: Ноя. 1, 2024

Abstract Questions The long‐term response of understorey vegetation to increasing tree mortality has rarely been addressed in resurvey studies. For two Quercus ‐dominated forest types, we asked: (a) How did overstorey alterations, induced by canopy mortality, affect diversity and composition? (b) Is there a signal global change effects on communities? (c) Are these assemblages experiencing homogenization process? Location Five sites robur (QR) four Q. petraea (QP) forests, Slovenia. Methods We studied changes vascular plants the layer from 1992/1993 2023 across 45 permanent 20 m × plots QR QP respectively. Vegetation surveys were carried out following standard Braun‐Blanquet method. compared original with recent resurveys using multivariate analysis, ecological indicator values (EIV), plant traits methods that quantify individual species. Results Since early 1990s, cover decreased 95% an average 55% QR, whereas it remained relatively high (77%) plots. This resulted denser significant increase plot‐level species richness but slight decrease forests. extensive loss disturbance forests caused composition. Species turnover was driven colonization new disturbance‐tolerant taxa characterized ruderal traits, compositional shift greater extent due losses. detected process thermophilization (increase EIV‐temperature), suggesting effect rapid climatic warming. Understorey communities are now more similar each other than 30 years ago, indicating beta‐diversity (floristic homogenization). Conclusions Despite some common trends, responses type‐specific. Our study presents evidence triggered increased (a strong local driver particularly plots) also points symptoms (thermophilization, homogenization), which acted rather independently observed decline cover.

Язык: Английский

Процитировано

3