Stand structure and deadwood amount influences saproxylic fungal biodiversity in Mediterranean mountain unmanaged forests

摘要: Abstract: Old-growth forests are key elements of ecosystem diversity and conservation strategies, providing niche differentiation trophic pathways that produce structural compositional heterogeneity. In these forests, deadwood is particularly important for saproxylic mycorrhizal fungi, sustaining forest productivity environmental services. this study, the fungal in Mediterranean mountain characterized by different management histories types (holm oak beech), was analyzed. The relationships between biodiversity attributes were considered three stands Apennines (Italy). addition, descriptive parameters traits related to prevailing communities, order analyze species composition distribution patterns fungi resulting from ordination processes. study sites selected on basis their late-serial stage development. Species frequency analyzed through multivariate techniques test variables. A Detrended Correspondence Analysis (DCA) used investigate response overall community structure gradients. Living tree volume, altitude, vegetation type, with ephemeral sporocarp lifespan played a crucial role diversifying patterns. Deadwood volume decay classes taxonomic diversity. However, differences climatic regions exerted major occurrence sporocarps more than abundance, utilized primarily as fructification substrate.