https://researchdata.se/en/catalogue Search results en Hymenoptera (sawflies, wasps, bees and ants) reared from logging residue left on clear-cuts in southern Sweden. Fine woody debris of Norway spruce, birch, oak and aspen, in three diameter classes (1–4, 4–8 and 8–15 cm) and two age classes (about 1 year and 3–5 years old), was collected on 34 clear-cuts in seven study areas in Uppland, Södermanland, Småland and Halland in 2002–2004. Each study area has a landscape inside and one outside areas identified as hotspots for forest biodiversity. Two bundles of each kind of wood were taken per clear-cut and reared separately, and specialists identified the Hymenoptera that emerged. The dataset has 731 occurrences with 4,397 specimens from 195 wood samples, in 32 families. 82 species are named; the rest are identified to genus, subfamily or family, partly as morphospecies. Pteromalidae, Eulophidae and Braconidae make up 84% of the specimens. Names follow Dyntaxa, the taxonomy of the Swedish Species Information Centre (checked 28 October 2026). These are the data analysed in Jonsell, Vårdal, Forshage & Stigenberg (2023); the beetles of the same study are published on Dryad (Jonsell 2019) and its Diptera in Jonsell, Widenfalk & Hellqvist (2020). Published as a sampling-event dataset (Darwin Core Archive): the clear-cuts, the wood samples and the replicate bundles of each wood sample are events, with the site facts and the wood classes as measurements. Each record of reared Hymenoptera is an occurrence on its bundle, or on its wood sample when the bundle was not recorded, split by sex or caste where these were counted. Not yet included: 22 taxa of Eulophidae and Encyrtidae identified in Lund, and the collection where the specimens will be kept. Thu, 29 Oct 2026 00:00:00 GMT https://researchdata.se/en/catalogue/dataset/gbif-sweden-10-15468-hkfe4h https://researchdata.se/en/catalogue/dataset/gbif-sweden-10-15468-hkfe4h Swedish Museum of Natural History Mats Jonsell Hege Vårdal Mattias Forshage Julia Stigenberg This folder contains all data and code used in the article "The potential of semiochemical blends to monitor saproxylic beetle communities" by Viktor Gårdman, Bo Aulin, Mikael A. Molander, & Mats Jonsell. The data stems from sampling of saproxylic beetles using crosstraps baited with one of three different pheromone blends between 2017-2023 (excluding 2022) at three different harbors in southern Sweden: Gothenburg (57.7017° N, 11.9479° E), Mönsterås (57.0416° N, 16.4431° E) and Norrköping (58.5877° N, 16.1924° E). Individual counts of all recorded species of saproxylic weevils (Curculionidae) (including barkbeetles (Scolytinae)), long-horned beetles (Cerambycidae), and jewel beetles (Buprestidae) are provided per month, year, harbor, blend and number of traps used. The data collection has been conducted by the Swedish Board of Agriculture with the aim to survey the potential entry of woodboring pests through timber import to Swedish harbors. Identification of beetles has been done by experts at the Swedish University of Agricultural Sciences. All data files are .csv files. Note that more types of pheromone blends or other attractants have been used in other traps at the same sites, and that more sites have been monitored throughout years. The data here is only from consistently used sites and blends between 2017-2023. For the complete dataset on catches of beetles across all sampling sites and baits, please refer to the Swedish Board of Agriculture (https://jordbruksverket.se/). The SpeciesMatrix contains raw counts of individuals sampled per species and month, year, harbor, and blend. The number of traps used at each occasion is also given. Data on tree host preferences (file 'TreeHost') for the sampled species was extracted from the Swedish Species Information Center (SLU ArtDatabanken, https://artfakta.se/). The GLMM_Species_Modified folder contains individual .csv files of counts for each species deemed suitable for individual analysis per harbor, year, month, and blend. The number of traps used for every occasion is also given. These files have further has modified to remove excess zeros. To avoid zero-inflation, any years, harbors, or baits with zero findings for each species have been removed. These are the files used to run the GLMM models. The SSOS file contains all records of saproxylic weevils, bark beetles, long-horned beetles, and jewel beetles found in the publicly available records in the Swedish Species Observations System (SSOS = "Artportalen", https://www.artportalen.se/) in a 10x10km square around each harbor between 2017-2023. All analyses were conducted using R version 4.4.0 and the code is presented through Rmarkdown. Wed, 15 Oct 2025 12:36:17 GMT https://researchdata.se/en/catalogue/dataset/2025-91 https://researchdata.se/en/catalogue/dataset/2025-91 Swedish University of Agricultural Sciences Viktor Gårdman Bo Aulin Mikael Molander Mats Jonsell