Nestedness is currently one of the most explored structural patterns of biological communities, especially since its major application in studies on ecological networks. Research on the nested pattern, as a spatial structural descriptor of communities, was mostly focused on theoretical background in the conservation of habitat islands. Here, we explore, to what extent nested true bug communities are present in saline grassland fragments of the Pannonian ecoregion and what are the reasons for their nestedness. In 2015 and 2017, we sampled true bugs from 17 saline pastures in northern Serbia. We applied three different sampling procedures (i.e. gradient in sampling effort) for collecting true bugs: along 20 m long transect, 3 × 30 m long parallel transects and total inventory. Analyses showed significant nestedness of the true bug communities and consistency of the pattern regardless of the data type (binary vs. weighted data) and applied metrics (NODF vs. spectral radius, WNODF vs. spectral radius). However, with the decrease of sampling effort and/or the exclusion of grass feeders, all metrics gradually detect less frequently significant nestedness. The only constant factor which was found to induce nestedness in true bug communities was true bug species richness. Plant cover features showed a weak influence on the nested pattern and landscape features did not take part at all. We believe nestedness of true bugs was the result of differences in habitat complexity among sampling sites, but detailed studies are needed to reveal which abiotic and/or biotic factors are responsible for it. For further studies, priority should be given to investigating the influence of management of saline grasslands on the nestedness in true bug communities.

嵌套是当前研究最多的生物群落结构模式之一，尤其是自其主要应用于生态网络研究以来。嵌套模式作为群落的空间结构描述词，其研究主要集中在保护生境岛的理论背景上。在这里，我们探讨了在潘诺尼亚生态区的盐碱草地碎片中，在多大程度上存在嵌套的真虫群落，以及它们嵌套的原因是什么。在2015年和2017年，我们从塞尔维亚北部的17个盐碱牧场采样了真正的虫子。我们采用了三种不同的采样程序（即采样努力中的梯度）来收集真正的bug：沿着20 m长的样带，3×30 m长的平行样带和总库存。分析表明，无论数据类型（二进制数据还是加权数据）和所应用的度量标准（NODF相对于光谱半径，WNODF相对于光谱半径）如何，真实的错误社区的显着嵌套和模式的一致性。但是，随着采样工作量的减少和/或草食动物的排除，所有指标逐渐检测到不太明显的嵌套。发现真正的昆虫群落中引起嵌套的唯一恒定因素是真正的昆虫物种丰富度。植物的覆盖特征对嵌套的图案影响很小，而景观特征根本没有参与。我们认为，真正的虫子的嵌套是采样点之间栖息地复杂性差异的结果，但需要进行详细的研究以揭示造成这种情况的非生物和/或生物因素。为了进一步研究，