Silva T S R, Feitosa R M
Depto de Zoologia, Univ Federal do Paraná, Caixa Postal 19020, Centro Politécnico, Curitiba, Paraná, 81531-980, Brasil.
Neotrop Entomol. 2017 Dec;46(6):711-718. doi: 10.1007/s13744-017-0524-0. Epub 2017 May 6.
Soil ecosystems are considered biodiversity hotspots. Most of terrestrial organisms depend almost exclusively on soils at least during some part of their life cycle. Although there is an intensive effort to understand the dynamics involving communities of soil animals, most groups are unappreciated in faunal inventories, such as some parasitic Hymenoptera with soil or litter hosts (SLH Hymenoptera), which are considered one of the largest and most diverse groups of soil- or litter-dwelling animals. Contrasting with flight interception traps, techniques that sample soil and litter specimens normally present low costs and easy transportation, being easily replicated within a site. Among them, the Winkler extractor is a useful technique to sample cryptic species associated with leaf litter. The aim of the present work was to describe the SLH Hymenoptera fauna collected in a pool of samples, using a technique to sample leaf litter arthropods. In this work, we report a total of 600 specimens belonging to Hymenoptera (excluding ants), belonging to 15 families distributed within 24 subfamilies, in samples of leaf litter obtained using the Winkler extractor. We observed that this technique is promising for sampling SLH Hymenoptera and should be considered as a complement for inventories of the Hymenoptera fauna.
土壤生态系统被视为生物多样性热点地区。大多数陆地生物至少在其生命周期的某些阶段几乎完全依赖土壤。尽管人们在深入努力了解涉及土壤动物群落的动态，但大多数类群在动物区系清单中未得到充分重视，例如一些以土壤或凋落物为宿主的寄生膜翅目昆虫（SLH膜翅目昆虫），它们被认为是土壤或凋落物栖息动物中最大且最多样化的类群之一。与飞行拦截陷阱不同，对土壤和凋落物标本进行采样的技术通常成本低且便于运输，易于在一个地点内重复操作。其中，温克勒提取器是一种用于采样与落叶层相关的隐秘物种的有用技术。本研究的目的是描述使用一种采样落叶层节肢动物的技术，从一组样本中采集到的SLH膜翅目昆虫区系。在这项研究中，我们报告了在使用温克勒提取器获得的落叶层样本中，总共600个属于膜翅目（不包括蚂蚁）的标本，它们分属于15个科，分布在24个亚科中。我们观察到，这项技术在采样SLH膜翅目昆虫方面很有前景，应被视为膜翅目昆虫区系清单的一种补充。
