The spatial extent and the dispersal strategy of species shape the occupancy frequency distribution of stream insect assemblages

This is the datasets and R script for our manuscript titled "The spatial extent and the dispersal strategy of species shape the occupancy frequency distribution of stream insect assemblages." Study area and sampling of Mecsek_species_Szivaketal.xlsx data The study area is situated in the Mecsek Mountains in Hungary. Stream insects were collected using the kick and sweep sampling technique. A hand net with a frame width of 25 cm and a mesh size of 1000 µm was employed. The collection involved disturbing an area of 0.25 × 0.25 m. We employed a stratified random multihabitat sampling procedure. We collected 20 sample units from the major microhabitats in proportion to their occurrence within the reaches. Each sample unit was individually processed and sorted in the laboratory to ensure thorough and accurate analysis. Disperse_trait_Szivaketal.xlsx data is based on DISPERSE database (Sarremejane et al., 2020) Methods for microhabitat_coverage_reach_transect.xlsx: Prior to sampling, we divided each 100 m long reach into 20 transects of comparable length and created microhabitat coverage maps. Using these maps, we assessed the proportionate coverage of different microhabitat types within each reach References: Sarremejane, R., Cid, N., Stubbington, R., Datry, T., Alp, M., Cañedo-Argüelles, M., Cordero-Rivera, A., Csabai, Z., Gutiérrez-Cánovas, C., Heino, J., Forcellini, M., Millán, A., Paillex, A., Pařil, P., Polášek, M., Tierno de Figueroa, J. M., Usseglio-Polatera, P., Zamora-Muñoz, C., & Bonada, N. (2020). DISPERSE, a trait database to assess the dispersal potential of European aquatic macroinvertebrates. Scientific Data, 7(1), 386. https://doi.org/10.1038/s41597-020-00732-7本数据集及配套R脚本，用于支撑我们题为《物种空间分布范围与扩散策略塑造溪流昆虫群落的占有频率分布》的学术手稿。 ### Mecsek_species_Szivaketal.xlsx 数据的研究区域与采样方案 研究区域位于匈牙利梅切克山脉（Mecsek Mountains）。研究采用踢扫采样法采集溪流昆虫样本：使用网框宽度25 cm、网孔孔径1000 µm的手持抄网，扰动0.25×0.25 m的水域面积完成采样。本研究采用分层随机多生境采样流程，按照各微生境在河段内的占比，从主要微生境中采集20个采样单元。每个采样单元均在实验室中单独处理、分选，以确保分析的全面性与准确性。 ### Disperse_trait_Szivaketal.xlsx 数据说明 该数据集基于DISPERSE数据库（Sarremejane等，2020）构建。 ### microhabitat_coverage_reach_transect.xlsx 的采样方法 采样前，我们将每条长100 m的河段划分为20个长度相近的样带，并绘制微生境覆盖图。依托该图，我们评估了每个河段内不同微生境类型的占比情况。 参考文献： Sarremejane, R., Cid, N., Stubbington, R., Datry, T., Alp, M., Cañedo-Argüelles, M., Cordero-Rivera, A., Csabai, Z., Gutiérrez-Cánovas, C., Heino, J., Forcellini, M., Millán, A., Paillex, A., Pařil, P., Polášek, M., Tierno de Figueroa, J. M., Usseglio-Polatera, P., Zamora-Muñoz, C., & Bonada, N. (2020). DISPERSE：用于评估欧洲水生大型无脊椎动物扩散潜力的功能性状数据库. *Scientific Data*, 7(1), 386. https://doi.org/10.1038/s41597-020-00732-7