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当前位置: 首页 > 文章 > Multiple forest structural elements are needed to promote beetle biomass, diversity and abundance 森林生态系统(英文版) 2022,9
Position: Home > Articles > Multiple forest structural elements are needed to promote beetle biomass, diversity and abundance Forest Ecosystems 2022,9

Multiple forest structural elements are needed to promote beetle biomass, diversity and abundance

作  者：
Nolan J. Rappa;Michael Staab;Julian Frey;Nathalie Winiger;Alexandra‐Maria Klei
单  位：
Nature Conservation and Landscape Ecology, University of Freiburg, Tennenbacherstrasse 4, 79106, Freiburg im Breisgau, Germany;Nature Conservation and Landscape Ecology, University of Freiburg, Tennenbacherstrasse 4, 79106, Freiburg im Breisgau, German;Nature Conservation and Landscape Ecology, University of Freiburg, Tennenbacherstrasse 4, 79106, Freiburg im Breisgau, Germany;Ecological Networks, Technical University Darmstadt, Schnittspahnstrasse 3, 64287, Darmstadt, Germany;Forest Growth and Dendroecology, University of Freiburg, Tennenbacherstrasse 4, 79106, Freiburg im Breisgau, Germany;Wildlife Ecology and Management, University of Freiburg, Tennenbacherstrasse 4, 79106, Freiburg im Breisgau, Germany
关键词：
Allometry;Biodiversity;Coleoptera;Forest management;Terrestrial laser scanning;Window trap;WOOD-INHABITING FUNGI;HIGHER-TAXON RICHNESS;SAPROXYLIC BEETLES;VERTICAL STRATIFICATION;TERRESTRIAL ARTHROPODS;EUROPEAN FORESTS;CLIMATE-CHANGE;BEECH FORESTS;INSECTS;MANAGEMEN
摘  要：
Retention forestry is a management strategy aiming to mitigate biodiversity loss by retaining structural elements such as dead trees that would otherwise be removed. Here we analyze the biomass, diversity and abundance among forest beetles collected using window traps on 128 1-ha forest sites reflecting gradients in the amount of structural elements in southwestern Germany. We found that beetle biomass increased with mean diameter at breast height (a measure of tree size), and decreased with stand structural complexity. Biomass of individual feeding guilds responded differently to forest structural elements, namely lying deadwood, understory complexity, tree basal area and stand structural complexity. Beetle family diversity increased with the effective number of layers, i.e. 1-m forest strata occupied by vegetation assessed via terrestrial laser scanning. Abundance of feeding guilds responded to only elevation and share of deciduous trees. Community composition in terms of biomass was structured by forest elements similar to biomass of individual feeding guilds, with the addition of lying deadwood. This differed from community composition in terms of abundance of feeding guilds, which was structured by primarily standing deadwood volume and share of deciduous trees. Our results show that biomass, diversity and abundance respond differently to forest structural elements. This suggests that the concurrent prioritization of multiple forest elements is needed to promote forest beetles, with more focus placed on the differing resource needs among feeding guilds. In addition, retention strategies should also consider the varying responses of beetle biodiversity metrics when assessing the importance of forest structural elements.

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