Diversity and conservation of saproxylic beetles in 42 European tree species: an experimental approach using early successional stages of branches,Insect Conservation and Diversity

当前位置： X-MOL 学术 › Insect Conserv. Divers. › 论文详情

Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)

Diversity and conservation of saproxylic beetles in 42 European tree species: an experimental approach using early successional stages of branches
Insect Conservation and Diversity ( IF 3.2 ) Pub Date : 2020-08-30 , DOI: 10.1111/icad.12442
Sebastian Vogel ₁ , Heinz Bussler ₂ , Sven Finnberg ₃ , Jörg Müller _{1,

4} , Elisa Stengel ₁ , Simon Thorn ₁

Affiliation

Tree species diversity is important to maintain saproxylic beetle diversity in managed forests. Yet, knowledge about the conservational importance of single tree species and implications for forest management and conservation practices are lacking.
We exposed freshly cut branch‐bundles of 42 tree species, representing tree species native and non‐native to Europe, under sun‐exposed and shaded conditions for 1 year. Afterwards, communities of saproxylic beetles were reared ex situ for 2 years. We tested for the impact of tree species and sun exposure on alpha‐, beta‐, and gamma‐diversity as well as composition of saproxylic beetle communities. Furthermore, the number of colonised tree species by each saproxylic beetle species was determined.
Tree species had a lower impact on saproxylic beetle communities compared to sun exposure. The diversity of saproxylic beetles varied strongly among tree species, with highest alpha‐ and gamma‐diversity found in Quercus petraea. Red‐listed saproxylic beetle species occurred ubiquitously among tree species. We found distinct differences in the community composition of broadleaved and coniferous tree species, native and non‐native tree species as well as sun‐exposed and shaded deadwood.
Our study enhances the understanding of the importance of previously understudied and non‐native tree species for the diversity of saproxylic beetles. To improve conservation practices for saproxylic beetles and especially red‐listed species, we suggest a stronger incorporation of tree species diversity and sun exposure of into forest management strategies, including the enrichment of deadwood from native and with a specific focus on locally rare or silviculturally less important tree species.

中文翻译：

欧洲42种树种中Saproxylic甲虫的多样性和保护：使用分支的早期演替阶段的实验方法

树木物种多样性对于维持人工林中的圣甲虫多样性很重要。然而，缺乏关于单一树种的保护重要性及其对森林管理和保护实践的影响的知识。
在暴露于阳光和阴凉的条件下，我们将代表欧洲原生和非原生树种的42个树种的新伐枝束暴露了1年。此后，异地甲虫群落在异地饲养了2年。我们测试了树木种类和日晒对α，β和γ多样性以及saproxylic甲虫群落组成的影响。此外，确定了每种Saproxylic甲虫物种的定殖树种数量。
与日光照射相比，树种对四叶甲虫群落的影响较小。在树木物种中，saproxylic甲虫的多样性差异很大，在栎属栎中发现的α和γ多样性最高。列入红色清单的四叶甲虫种在树木中普遍存在。我们发现阔叶和针叶树种，本地和非本地树种以及暴露于阳光和阴影的枯木的群落组成存在明显差异。
我们的研究增强了对以前研究和非本地树种对saproxylic甲虫多样性的重要性的理解。为了改善对甲虫，特别是列入红色名录的物种的保护措施，我们建议将树种多样性和日光照射更强地纳入森林管理策略，包括从本地丰富枯木，并特别关注本地稀有或造林的重要的树种。

更新日期：2020-08-30

点击分享查看原文

点击收藏

公开下载

阅读更多本刊最新论文本刊介绍/投稿指南11