Small stream floodplains have high conservation value for riparian carabid beetles but less for ground-dwelling spiders

IF 3.2 2区农林科学 Q1 ENTOMOLOGY

Insect Conservation and Diversity Pub Date : 2024-07-09 DOI:10.1111/icad.12759

Peer Bauspiess, Sebastian Kolb, Tanja J. Joschko, Ralf Schulz, Jens Schirmel

引用次数: 0

Abstract

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小溪泛滥平原对河岸腕甲虫具有很高的保护价值，但对地栖蜘蛛的保护价值较低

河流和溪流沿岸的冲积平原具有栖息地异质性高和生物多样性丰富的特点。然而，河漫滩受到人为活动的严重威胁，如河道疏浚和堤岸加固。众所周知，河流沿岸的冲积平原对河岸生物多样性具有重要意义，但人们对小溪流冲积平原的保护价值了解较少。我们研究了德国莱茵兰-法尔茨州森林小溪（宽度约为 5 米）沿岸的鞘翅目甲虫（鞘翅目：Carabidae）和地栖蜘蛛（蛛形纲：Aranea）。我们调查了 16 对泛滥平原（河岸较浅、定期泛滥的自然溪流地点）和对照组（没有定期泛滥的深切割溪流地点），在距离河岸不同的距离（0、5 和 10 米）对甲虫和蜘蛛进行了采样。我们发现，小溪边的冲积平原对角甲虫和地栖蜘蛛的价值截然不同。对于食肉甲虫，我们观察到了几种典型的洪泛区物种和独特的物种组合，在洪泛区，受保护物种的个体数量是其他物种的2.7倍。此外，与较远的地点相比，洪泛区河岸（0 米距离）处的胡蜂甲虫物种丰富度和个体总数最高，而对照河段地点的情况恰恰相反。洪泛区和对照区的蜘蛛组成也有所不同，但只发现了一种典型的洪泛区物种。洪泛区地栖蜘蛛的物种丰富度和个体数量均低于对照溪流地点。我们的结论是，小溪泛滥平原的保护价值取决于分类群，它们似乎与地栖蜘蛛的关系不大，但为河岸腕足动物提供了重要的栖息地。

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来源期刊

Insect Conservation and Diversity 生物-昆虫学

CiteScore

7.70

自引率

8.60%

发文量

审稿时长

>12 weeks

期刊介绍： To publish papers of the highest scientific quality within the general area of insect (and other arthropods) conservation and diversity covering topics ranging from ecological theory to practical management. Papers are invited on the following topics: Conservation genetics; Extinction debt; Long-term conservation planning and implementation; Global implications of local or national conservation actions; Management responses of species and communities; Captive breeding programs; Comparisons of restored and natural habitats; Biogeography; Global biodiversity; Metapopulation dynamics; Climate change: impacts on distributions and range; Invasive species: impacts and control; Effects of pollution; Genetic threats to diversity by introgression; Effects of fragmentation on diversity and distribution; Impact of agricultural and forestry practices on biodiversity; Enhancing urban environments for diversity and protection; Biodiversity action plans: can we scale up from insects?; Effectiveness and choice of indicator species; Soil biodiversity and interactions with above-ground biodiversity; Ecological interactions at local levels; Ecological and evolutionary factors influencing diversity and local, regional and global scales; Sustainable livelihoods and training on the ground; Integrating science and policy.