SummaryApproximately 80% of neotropical forests are subject to unsustainable economic practices, such as logging. Spiders are a megadiverse taxonomic group with a particularly great diversity in forest ecosystems and could help indicate the sustainability of logging operations. At six sites at 400–700 m altitude in the piedmont forest of north-western Argentina, spiders collected using pitfall traps and forest structure and spider assemblage structure variables were quantified in order to examine the association between them and to identify indicator spider families. Logging changes forest structure and seems to generate an unsuitable habitat for spiders associated with mature forests. The family taxonomic level is a good surrogate for spider morphospecies. The Mysmenidae, Nemesiidae, Theridiidae, Pholcidae, Hahniidae and Tetragnathidae families were associated with upper canopy cover of 20% or more and with more than two dead fallen trees per 0.1 ha and >15 live trees per 0.1 ha, found in unlogged forests. Bearing in mind that the piedmont forest of north-western Argentina is being logged in the absence of sustainability criteria, we suggest including spiders in monitoring schemes to complement the information obtained from more readily used groups, such as charismatic vertebrates.

中文翻译：

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用于监测生态可持续伐木作业的地栖蜘蛛家族和森林结构变量

摘要大约 80% 的新热带森林受到不可持续的经济行为的影响，例如伐木。蜘蛛是一个种类繁多的分类群，在森林生态系统中具有特别大的多样性，可以帮助表明伐木作业的可持续性。在阿根廷西北部山前森林海拔 400-700 m 的六个地点，使用陷阱和森林结构和蜘蛛组合结构变量收集的蜘蛛被量化，以检查它们之间的关联并确定指示蜘蛛家族。伐木改变了森林结构，似乎为与成熟森林相关的蜘蛛提供了不适合的栖息地。家庭分类水平是蜘蛛形态物种的一个很好的替代物。Mysmenidae，Nemesiidae，Theridiidae，Pholcidae，在未砍伐的森林中发现，Hahniidae 和 Tetragnathidae 科与 20% 或更多的上部树冠覆盖率有关，每 0.1 公顷有两棵以上的死树倒下，每 0.1 公顷有 > 15 棵活树。考虑到阿根廷西北部的山前森林在没有可持续性标准的情况下被记录，我们建议将蜘蛛纳入监测计划，以补充从更容易使用的群体（如魅力脊椎动物）获得的信息。