Dieback of managed spruce stands in western Germany promotes beetle diversity  

作　　者：Eva Plath Chantal Trauth Jan Gerhards Laura Griebel Klaus Fischer 

机构地区：[1]Department Biology,Institute of Integrated Natural Sciences,Koblenz-Landau University,56070 Koblenz,Germany

出　　处：《Journal of Forestry Research》2024年第3期55-71,共17页林业研究（英文版）

基　　金：supported by Forschungsanstalt fur Waldokologie und Forstwirtschaft (FAWF)of Landesforsten Rheinland-Pfalz (FF5.3-01-2021).

摘　　要：Biodiversity loss is a significant problem at a global scale and may be amplified by climate change.In recent years,coniferous forests have had substantial die-back across Europe due to drought and subsequent bark-beetle outbreaks.As many studies on the consequences of disturbance and subsequent management have focused on natural stands,management implications for managed spruce stands are not well understood,even though such stands are widespread throughout Europe.In this study,beetle taxonomy,conservation value,and community com-position are compared among spruce plantations and four post-disturbance management approaches:standing dead-wood,lying deadwood,clear cuts,and long-term succession.Diversity and community composition differed significantly among management categories,while different beetle fami-lies responded similarly.Intact spruce stands harbored the lowest beetle diversity while the highest taxonomic diver-sity and conservation value was on clear cuts and stands with lying or standing deadwood.The proportion of forest specialists was highest in successional forests.In summary,different forest management categories harbored distinct beetle communities at the family-,species-,and ecological guild levels.Therefore,post-disturbance management should consider the landscape scale and include different management types.This enhances landscape heterogeneity and thus overall biodiversity but could also mitigate negative impacts of natural disturbances on ecosystem services.

关 键 词：Bark-beetle outbreak Forest dieback SPRUCE DEADWOOD Nature conservation Beetle biodiversity-Coleoptera Coniferous forests 

分 类 号：S718.7[农业科学—林学]