Parmain G, Bouget C, Müller J, Horak J, Gossner M M, Lachat T, Isacsson G
National Research Institute of Science and Technology for Environment and Agriculture. (IRSTEA),'Forest ecosystems' Research Unit, Domaine des Barres, F-45290 Nogent-sur-Vernisson,France.
Nationalparkverwaltung Bayerischer Wald Stellvertretender Leiter Sachgebietsleiter Naturschutz und ForschungFreyunger Str. 2, 94481 Grafenau,Germany.
Bull Entomol Res. 2015 Feb;105(1):101-9. doi: 10.1017/S0007485314000741. Epub 2014 Dec 1.
Monitoring saproxylic beetle diversity, though challenging, can help identifying relevant conservation sites or key drivers of forest biodiversity, and assessing the impact of forestry practices on biodiversity. Unfortunately, monitoring species assemblages is costly, mainly due to the time spent on identification. Excluding families which are rich in specimens and species but are difficult to identify is a frequent procedure used in ecological entomology to reduce the identification cost. The Staphylinidae (rove beetle) family is both one of the most frequently excluded and one of the most species-rich saproxylic beetle families. Using a large-scale beetle and environmental dataset from 238 beech stands across Europe, we evaluated the effects of staphylinid exclusion on results in ecological forest studies. Simplified staphylinid-excluded assemblages were found to be relevant surrogates for whole assemblages. The species richness and composition of saproxylic beetle assemblages both with and without staphylinids responded congruently to landscape, climatic and stand gradients, even when the assemblages included a high proportion of staphylinid species. At both local and regional scales, the species richness as well as the species composition of staphylinid-included and staphylinid-excluded assemblages were highly positively correlated. Ranking of sites according to their biodiversity level, which either included or excluded Staphylinidae in species richness, also gave congruent results. From our results, species assemblages omitting staphylinids can be taken as efficient surrogates for complete assemblages in large scale biodiversity monitoring studies.
监测食菌甲虫的多样性虽然具有挑战性，但有助于确定相关的保护地点或森林生物多样性的关键驱动因素，并评估林业实践对生物多样性的影响。不幸的是，监测物种组合成本高昂，主要原因是在鉴定上花费的时间。排除那些标本和物种丰富但难以鉴定的科是生态昆虫学中常用的一种减少鉴定成本的方法。隐翅虫科（隐翅虫）既是最常被排除的科之一，也是物种最丰富的食菌甲虫科之一。利用来自欧洲238个山毛榉林分的大规模甲虫和环境数据集，我们评估了排除隐翅虫对生态森林研究结果的影响。发现简化后的排除隐翅虫的组合是整个组合的相关替代物。无论有无隐翅虫，食菌甲虫组合的物种丰富度和组成对景观、气候和林分梯度的响应都是一致的，即使组合中包含高比例的隐翅虫物种。在局部和区域尺度上，包含隐翅虫和排除隐翅虫的组合的物种丰富度以及物种组成都高度正相关。根据生物多样性水平对地点进行排名，无论在物种丰富度中是否包括隐翅虫科，也都得出了一致的结果。根据我们的研究结果，在大规模生物多样性监测研究中，省略隐翅虫的物种组合可以作为完整组合的有效替代物。
