378651d7-c235-4205-a617-2939d6faa434 http://ipt.nlbif.nl/resource?r=bee_species_landscapes_nl_wur David Kleijn Wageningen University Professor

Droevendaalsesteeg 3a Wageningen 6708PB NL

david.kleijn@wur.nl https://www.wur.nl/en/Persons/David-Kleijn.htm 0000-0003-2500-7164 David Kleijn Wageningen University Professor

Droevendaalsesteeg 3a Wageningen 6708PB NL

david.kleijn@wur.nl https://www.wur.nl/en/Persons/David-Kleijn.htm 0000-0003-2500-7164 Niels Raes NLBIF Node manager

PO Box 9517 Leiden NL-2300 RA NL

+31 71 7519362 nlbif@naturalis.nl https://www.nlbif.nl/ 0000-0002-4329-4892 processor 2020-04-14 eng The dataset contains data on wild bee species and honey bees caught by coloured pan traps across 20 landscapes in two censuses in July and August 2012, in The Netherlands. It concerns data underlying the paper Bukovinszky et al. 2017. Biological Conservation, 214, 312-319. Samplingevent GBIF Dataset Type Vocabulary: http://rs.gbif.org/vocabulary/gbif/dataset_type.xml This work is licensed under a Creative Commons Attribution Non Commercial (CC-BY-NC) 4.0 License. Agricultural landscapes, in South and Central Netherlands. 4.681 6.271 52.122 50.85 2012-07-16 2012-08-29 Apoidea, bees superfamily Apoidea Bees genus Andrena genus Anthophora genus Bombus genus Ceratina genus Colletes genus Dasypoda genus Halictus genus Heriades genus Hylaeus genus Lasioglossum genus Macropis genus Megachile genus Melitta genus Osmia genus Panargus genus Apis unkown David Kleijn Wageningen University Professor

Droevendaalsesteeg 3a Wageningen 6708PB NL

david.kleijn@wur.nl https://www.wur.nl/en/Persons/David-Kleijn.htm 0000-0003-2500-7164 In each landscape plot, six traps were used. The traps were placed in an open spot (i.e. away from shadow of trees) in comparable vegetation background (i.e. grassy field boundaries) that was slightly lower than the position of the pan traps. When operating, traps were filled with water containing a non-fragant (~0.2 v/v%) surfactant. Bee species caught by coloured pan traps across 20 landscapes in South and Central Netherlands in July and August 2012. Twenty rectangular 50 ha landscape plots in agricultural areas in the southern and central parts of The Netherlands, scattered across a ca. 10.500 km2 large area. Trapping stations were located at least 100 m apart. A trap consisted of three pans (diameter 12 cm, volume 480 cm3) that were colour-coated using yellow, blue and white, UV-reflecting colours. The pans (one of each colour) mounted on a one-meter-tall wooden pole comprised a single trapping station. Two censuses were carried out in the third weeks of July and August, with traps catching for a period of two days within a census. The material was preserved in ethanol until identification. David Kleijn 0000-0003-2500-7164 Netherlands Organisation for Scientific Research (NWO: 841.11.001) EC FP7 project LIBERATION: 311781 Syngenta Data underlying the paper Bukovinszky et al. 2017. Biological Conservation, 214: 312-319 2018-06-05T01:25:08.356+02:00 dataset Kleijn D (2020): Bee species and numbers caught by coloured pan traps across 20 landscapes in 2012, The Netherlands. v1.8. Nature Conservation and Plant Ecology Group, Wageningen UR. Dataset/Samplingevent. http://ipt.nlbif.nl/resource?r=bee_species_landscapes_nl_wur&v=1.8 Bukovinszky, T., Verheijen, J., Zwerver, S., Klop, E., Biesmeijer, J.C., Wäckers, F.L., Prins, H.H.T. & Kleijn, D. (2017) Exploring the relationships between landscape complexity, wild bee species richness and reproduction, and pollination services along a complexity gradient in the Netherlands. Biological Conservation, 214: 312-319 http://ipt.nlbif.nl/logo.do?r=earthwormshw2012 378651d7-c235-4205-a617-2939d6faa434/v1.8.xml