Deadwood and tree microhabitat dynamics in unharvested temperate mountain mixed forests: A life-cycle approach to biodiversity monitoring

摘要: In forest ecosystems, conservation is often considered in the absence of any long-term dynamic perspective, yet processes extend over hundreds years. Saproxylic taxa represent about 25% species diversity temperate and boreal forests they depend on both spatial temporal continuity availability deadwood certain tree microhabitats. Our study focused dynamics microhabitats throughout silvigenetic cycle 32 unharvested European mountain mixed forests. dataset contained 178 plots classified into one five development phases (regeneration, establishing, growing, culmination disintegration). We analyzed how amount quality varied according to phases. Contrary expectations, microhabitat remained more or less stable cycle, quantity diversity. Furthermore, whether were dominated by broadleaves conifers, there no significant differences terms dynamics. Pioneer (Betula spp., Salix spp.) post-pioneer (Fraxinus exelsior, Sorbus Prunus avium) played an important role providing a when from dominant (i.e. Abies alba, Fagus sylvatica, Picea abies) was scarce. Understanding may help us provide model for managers who intend emulate natural will also improve our understanding relationship between biodiversity conservation.