dc24c0f9-c80e-4244-b113-0b9592ff1632 https://ipt.inbo.be/resource?r=inboveg_len_sinusmaai_event Inboveg_SinusMaaien_Pollinator_Plants_Event Andy Van Kerckvoorde INBO any.vankerckvoorde@inbo.be 0000-0002-3749-8346 Hans Van Calster INBO hans.vancalster@inbo.be 0000-0001-8595-8426 Maria-Rose Eves Down INBO

Brussel BE

mariarose.evesdown@inbo.be 0009-0000-9611-3824 2026-07-13 eng This dataset was collected as part of an experiment looking at the effect of the "sinus" method (meandering mowing) on pollinator and habitat diversity in mesic grasslands. Part of this data is stored in INBOVEG, the INBO vegetation record database (also part of the "Global Index of Vegetation-plot databases" and the "European Vegetation Archive"). The relevant identification code for the INBOVeg dataset is 'IV2015020509212244'. The 'collectionCode' column in the data also identifies the data from INBOVeg versus the data held by INBO outside of this databank.Looking at these effects included species surveys, carried out yearly (2018, 2019, 2020 & 2021), during the flight season of pollinators (mid April - late September). The pollinator records are not present in this dataset, only the plant survey results.Under 'occurrence remarks', the distance of the organism from the point of measuring is given, where noted. A value of 0 is a distance of 0, if no distance was noted then the field will read 'NULL'.  More details regarding the surveying protocols is given later, though a full overview (along with the results of the experiment itself) can be found in the article: Parmentier, L., Kerckvoorde, A. V., Couckuyt, J., Calster, H. V., Smagghe, G., & Haesaert, G. (2025). Sinus management: meandering mowing as a novel method to improve pollinator biodiversity and habitat heterogeneity in mesic grasslands. AGRICULTURE ECOSYSTEMS & ENVIRONMENT, 382. https://doi.org/10.1016/j.agee.2025.109478To allow anyone to use this dataset, we have released the data to the public domain under a Creative Commons Zero waiver (http://creativecommons.org/publicdomain/zero/1.0/). We would appreciate however, if you read and follow these norms for data use (http://www.inbo.be/en/norms-for-data-use) and provide a link to the original dataset whenever possible. If you use these data for a scientific paper, please cite the dataset following the applicable citation norms and/or consider us for co-authorship. We are always interested to know how you have used or visualised the data, or to provide more information, so please contact us via the contact information provided in the metadata or via opendata@inbo.be. Samplingevent GBIF Dataset Type Vocabulary: http://rs.gbif.org/vocabulary/gbif/dataset_type_2015-07-10.xml Observation GBIF Dataset Subtype Vocabulary: http://rs.gbif.org/vocabulary/gbif/dataset_subtype.xml INBOVeg N/A Sinus N/A To allow anyone to use this dataset, we have released the data to the public domain under a Creative Commons Zero waiver (http://creativecommons.org/publicdomain/zero/1.0/). We would appreciate however, if you read and follow these norms for data use (http://www.inbo.be/en/norms-for-data-use) and provide a link to the original dataset whenever possible. If you use these data for a scientific paper, please cite the dataset following the applicable citation norms and/or consider us for co-authorship. We are always interested to know how you have used or visualised the data, or to provide more information, so please contact us via the contact information provided in the metadata or via opendata@inbo.be. To the extent possible under law, the publisher has waived all rights to these data and has dedicated them to the Public Domain (CC0 1.0). Users may copy, modify, distribute and use the work, including for commercial purposes, without restriction. Creative Commons Zero v1.0 Universal https://spdx.org/licenses/CC0-1.0.html CC0-1.0 Flanders, Belgium 2.79568 3.674244 51.09113 50.768184 2018-05-28 2024-06-07 Thanks to the partners participating in the Sinus Management Project (grand n◦ SGP.PRO.2018.0001.01 & Addendum 1) forfunding this research and support in implementation of the mowing management at the different study locations. In addition to Ghent University (UGent) and Research Institute for Nature and Forest (INBO), the following partners have participated in this project: Provincie WestVlaanderen, Provincie Antwerpen, Provincie Vlaams-Brabant, De Vlaamse Waterweg (DVW) and Agentschap voor Natuur & Bos (ANB). Thanks to Ward Vercruysse, Jan Van Uytvanck, Stien Heremans, Marijke Thoonen, Sam Provoost, Bart Christiaens, Luc De Geest, Wouter Van Gompel, Kris Decleer, Heidi Demolder, en Johannes Janssen for recording and identifying many species; Margot Lenssens for assistance in lab determination of bee species; and Prof. Lander Baeten (UGent) and Jan Van Uytvanck (UGent, INBO) for critical comments. Finally, also special thanks to Olivier Dochy (Provincie West-Vlaanderen, INBO) and Nathalie Devaere (DVW) for their help in initialization of this project and fundraising. notPlanned Andy Van Kerckvoorde INBO any.vankerckvoorde@inbo.be 0000-0002-3749-8346 Please see the associated article by Parmentier et al, 2025 Please see the associated article by Parmentier et al, 2025 Please see the associated article by Parmentier et al., 2025, for full details of the surveying protocol. The survey was carried out using a 'point, plant, distance' process. All of the plants observed were within 0.5 m of the sampling point. Under the field 'occurrence Remarks', the distance of the observed organism from the observation point was recorded. A value of '0' means a distance of 0 metres, if no distance was recorded then the field will contain a value of 'NULL'. All observations were made by trained experts. Andy Van Kerckvoorde 0000-0002-3749-8346 principalInvestigator Laurian Parmentier 0000-0003-4226-439X principalInvestigator Jurgen Couckuyt principalInvestigator Hans Van Calster 0000-0001-8595-8426 principalInvestigator Guy Smagghe 0000-0001-8334-3313 principalInvestigator Geert Haesaert 0000-0003-2993-9858 principalInvestigator In this study we report on the effects of sinus management over three consecutive years (2019–2021), with a focus on pollinators, bees and butterflies, as test organisms. These two arthropod groups are considered important because of their numerous presence in grasslands, their trophic level (including relevance of ecosystem services as pollination) and cultural significance (Garibaldi et al., 2013; Woodcock et al., 2021). We investigated the following key research questions: • How management impacts annual accumulation of abundance and alpha diversity metrics for all pollinators, as well as for bee and butterfly subgroups; • The impact of management on pollinator diversity over three consecutive years, focusing on pollinator subgroups categorized by functional diversity and rarity; • How management influences flowering plant abundance and plantpollinator interactions, of bees and butterflies. Through this research, we aim to address a topical issue, relevant for policymakers shaping future biodiversity conservation measures of grassland ecosystems in rural landscapes across European countries and beyond. The Sinus Management Project (grand n◦ SGP.PRO.2018.0001.01), Ghent University (UGent), the Research Institute for Nature and Forest (INBO), Provincie WestVlaanderen, Provincie Antwerpen, Provincie Vlaams-Brabant, De Vlaamse Waterweg (DVW) and the Agentschap voor Natuur & Bos (ANB). Six locations in Flanders, Belgium, each containing two paired study sites (plots of Arrhenatherion type grassland), one attributed to sinus management and the other to rotational block management. 2026-06-01T11:14:29.102+00:00 dataset Parmentier, L., Kerckvoorde, A. V., Couckuyt, J., Calster, H. V., Smagghe, G., & Haesaert, G. (2025). Sinus management: meandering mowing as a novel method to improve pollinator biodiversity and habitat heterogeneity in mesic grasslands. AGRICULTURE ECOSYSTEMS & ENVIRONMENT, 382. https://doi.org/10.1016/j.agee.2025.109478 Westphal, C., Bommarco, R., Carre, G., Lamborn, E., Morison, N., Petanidou, T., Potts, S. G., Roberts, S.P.M., Szentgyorgyi, H., Tscheulin, T., Vaissiere, B.E., Woyciechowski, M., Biesmeijer, J.C., Kunin, W.E., Settele, J., Steffan-Dewenter, I., 2008. Measuring bee diversity in different European habitats and biogeographical regions. Ecol. Monogr. 78, 653–671 https://10.1890/07-1292.1. Sevilleja, C.G., van Swaay, C.A.M., Bourn, N., Collins, S., Settele, J., Warren, M.S., Wynhoff, I., Roy, D.B., 2019. In: Conservation, B.C.E.D.V.D.B. (Ed.), Butterfly Transect Counts: Manual to monitor butterflies. Report VS2019.016. Wageningen. dc24c0f9-c80e-4244-b113-0b9592ff1632/v1.2.xml