Temperature effect on size distributions in spruce-fir-beech mixed stands across Europe

• Species size distribution dynamics in mixed forests were explored using a matrix model. Warming modifies species of mountain spruce-fir-beech forests. positively effects stand basal area fir but negatively beech. Increasing temperature favors the size-dominance over spruce and Size-dominant identity influences Forest composed Picea abies L. , Abies alba Mill. Fagus sylvatica cover large European regions have high ecological socio-economic importance as they supply many ecosystems services. Because climate change, these are exposed to warming, this effect increases with elevation, which may impact their delivery goods Previous studies did not find significant changes overall productivity last 30 years, observed competitiveness at tree levels. In study, we aimed link previous results on tree, level growth by analysing under different conditions growth. We developed model based data from 76 long-term experimental plots distributed throughout Europe. used change explore whether dominances proportions, depend dominance, dominance varies temperature. Our showed that annual mean is an important climatic driver forests, such was favored higher temperatures, particularly due positive responses silver greater than negative The temperatures also fir, while beech tended smaller diameters, independent found size-dominant influenced area, highest or lowest when Norway species, respectively. Silver less Therefore, although be resilient systems terms productivity, conclude increasing modify consequently silvicultural interventions will needed control proportions dominances.