The checklist of alien herpetofauna of Belgium is a species checklist dataset published by the Research Institute for Nature and Forest (INBO). It contains information on alien amphibian and reptile species recorded in the wild in Belgium since 1968. Both established species and occasional records are included, but with information on the degree of establishment of species following the unified invasion framework of Blackburn et al. (2011). The checklist is published here as a standardized Darwin Core Archive and includes for each (sub)species: the scientific name and classification (in the taxon core), the presence in Flanders, Wallonia and the Brussels-Capital Region, year of first and last observation in Belgium (given as a year range in the event date in the distribution extension), coarse habitat information (in the species profile extension), and the degree of establishment, pathway(s) of introduction and native range(s) (in the description extension). Issues with the dataset can be reported at https://github.com/trias-project/alien-herpetofauna-belgium. We have released this dataset to the public domain under a Creative Commons Zero waiver. We would appreciate it if you follow the GBIF citation guidelines (https://www.gbif.org/citation-guidelines) when using the data. If you have any questions regarding this dataset, don’t hesitate to contact us via the contact information provided in the metadata or via https://twitter.com/trias_project. This dataset was published as open data for the TrIAS project (Tracking Invasive Alien Species http://trias-project.be, Vanderhoeven et al. 2017), with technical support provided by the Research Institute for Nature and Forest (INBO). It is selected as one of the authoritative sources for the compilation of a unified and reproducible checklist of alien species in Belgium.

The Checklist of non-native freshwater fishes in Flanders, Belgium is a species checklist dataset published by the Research Institute for Nature and Forest (INBO). It contains information on 23 alien fish species occurring in Flemish natural and semi-natural waterbodies, detected in sampling between 1992 and 2006. This species checklist was assessed within the framework of the Freshwater Fish Monitoring Network by Verreycken et al. (2007) and reassessed for Verreycken et al. (2018). Here it is published as a standardized Darwin Core Archive and includes for each species: the scientific name, kingdom, and stable taxon identifier (in the taxon core), the Dutch and English vernacular name (in the vernacular names extension), the year of first introduction in Flanders (given as a year range, with the year of last observation empty), the pathway(s) of introduction and the degree of establishment in Flanders (in the distribution extension), coarse habitat information (in the species profile extension) and native range(s) (in the description extension). The dataset can be used for researching and managing aquatic invasions or compiling regional and national registries of alien species. Issues with the dataset can be reported at: https://github.com/trias-project/alien-fishes-checklist We have released this dataset to the public domain under a Creative Commons Zero waiver. We would appreciate it if you follow the the INBO norms for data use (https://www.inbo.be/en/norms-data-use) when using the data. If you have any questions regarding this dataset, don’t hesitate to contact us via the contact information provided in the metadata or via https://twitter.com/LifeWatchINBO. This dataset was published as open data for the TrIAS project (Tracking Invasive Alien Species http://trias-project.be, Vanderhoeven et al. 2017), with technical support provided by the Research Institute for Nature and Forest (INBO). It is selected as one of the authoritative sources for the compilation of a unified and reproducible checklist of alien species in Belgium.

The “Occurrences from the Alien CSI Bioblitz: citizen science to engage society in invasive species monitoring” dataset is an occurrence dataset published by the Research Institute for Nature and Forest (INBO) in collaboration with the <a href="https://alien-csi.eu/">AlienCSI </a> COST (European Cooperation in Science and Technology, CA17122) research network (Roy et al. 2018). The dataset contains all the alien species data collected during the <a href="https://iasbioblitz.creaf.cat/">Alien CSI Bioblitz</a>. This bioblitz was organized for the first time in May 2022 as a three day event and is planned to be repeated yearly. This bioblitz activity aims to engage society in invasive species monitoring. The first edition included guided bioblitzes in thirteen different protected areas across twelve European countries. The data are published as a standardized Darwin Core Archive. Issues with the dataset can be reported at https://github.com/alien-csi/bioblitz-occurrences/issues We have released this dataset to the public domain under a Creative Commons Public Domain Dedication. We would appreciate it if you follow the INBO norms for data use (https://www.inbo.be/en/norms-data-use) when using the data. If you have any questions regarding this dataset, don't hesitate to contact us via the contact information provided in the metadata.

Florabank1 is a database that contains distributional data on the wild flora (indigenous species, archeophytes and naturalised aliens) of Flanders and the Brussels Capital Region. It holds about 3 million records of vascular plants, dating from 1800 till present. Furthermore, it includes ecological data on vascular plant species, redlist category information, Ellenberg values, legal status, global distribution, seed bank etc. The database is an initiative of "Flo.Wer" (http://www.plantenwerkgroep.be), the Research Institute for Nature and Forest (INBO) (http://www.inbo.be) and the National Botanic Garden of Belgium (http://www.br.fgov.be). Florabank aims at centralizing botanical distribution data gathered by both professional and amateur botanists and to make these data available to the benefit of nature conservation, policy and scientific research. The occurrence data contained in Florabank1 are extracted from checklists, literature and herbarium specimen information. Of survey lists, the locality name (verbatimLocality), species name, observation date and IFBL square code - the grid system used for plant mapping in Belgium (Van Rompaey 1943) - are recorded. For records dating from the period 1972–2004 all pertinent botanical journals dealing with Belgian flora were systematically screened. Analysis of herbarium specimens in the collection of the National Botanic Garden of Belgium, the University of Ghent and the University of Liège provided interesting distribution knowledge concerning rare species, this information is also included in Florabank1. The IFBL data recorded before 1972 is available through the Belgian GBIF node (http://www.gbif.org/dataset/940821c0-3269-11df-855a-b8a03c50a862), not through Florabank1, to avoid duplication of information. A dedicated portal providing access to all currently published Belgian IFBL records is available at: http://projects.biodiversity.be/ifbl. All data in Florabank1 is georeferenced. Every record holds the decimal centroid coordinates of the > IFBL square containing the observation. The uncertainty radius is the smallest circle possible covering the whole IFBL square, which can measure 1 km² or 4 km². Florabank is a work in progress and new occurrences are added as they become available; the dataset will be updated through GBIF on a regularly base.

Mica - Muskrat and Coypu and Raccoon Occurrences collected by ITAW, Germany is an occurrence dataset published by the Research Institute of Nature and Forest (INBO) and ITAW (Institute for Terrestrial and Aquatic Wildlife Research. It is part of the LIFE MICA - Management of Invasive Coypu and muskrat in Europe project on Muskrat monitoring networks in Flanders, The Netherlands and Germany. This dataset contains Muskrat, Raccoon and Coypu counts. Here it is published as a standardized Darwin Core Archive and includes for each occurrence record an recordID, date, location, samplingProtocol, the number of recorded individuals, status (present/absent) and scientific name. Issues with the dataset can be reported at https://github.com/inbo/muskrat-uvw-occurrences/issues We have released this dataset to the public domain under a Creative Commons Zero waiver. We would appreciate it if you follow the INBO norms for data use (https://www.inbo.be/en/norms-data-use) when using the data. If you have any questions regarding this dataset, don't hesitate to contact us via the contact information provided in the metadata or via opendata@inbo.be.

The RIPARIAS target species list is a species checklist dataset published by the Research Institute for Nature and Forest (INBO). It contains (1) the target species of the LIFE RIPARIAS project (LIFE19 NAT/BE/000953), all of them invasive alien species (IAS) of the Regulation (EU) 1143/2014 (https://ec.europa.eu/environment/nature/invasivealien/) and (2) the alert list species that currently do not occur in the LIFE RIPARIAS project area, but have proven to have negative impacts on biodiversity and need to be rapidly removed should they be encountered. The alert list was drafted within the LIFE RIPARIAS project following an evidence-based methodology involving climate matching and risk assessment (Branquart et al. 2022). By publishing this list on GBIF it can be used for general reference, early warning systems, data extractions, baseline reporting, project KPIs etc. Issues with the dataset can be reported at: https://github.com/riparias/riparias-target-list We have released this dataset to the public domain under a Creative Commons Zero waiver. We would appreciate it if you follow the INBO norms for data use (https://www.inbo.be/en/norms-data-use) when using the data. If you have any questions regarding this dataset, don't hesitate to contact us via the contact information provided in the metadata or via opendata@inbo.be. This dataset was published as open data for the LIFE RIPARIAS project (Reaching Integrated and Prompt Action in Response to Invasive Alien Species https://www.riparias.be/), with technical support provided by the Research Institute for Nature and Forest (INBO).

The List of Invasive Alien Species of Union concern (also called the Union list) is a species checklist dataset published by the Research Institute of Nature and Forest (INBO). This list contains regulated invasive alien species (IAS) that require action at European Union Level, and is at the core of Regulation (EU) 1143/2014 on the prevention and management of the introduction and spread of IAS (the IAS Regulation). The list has an evidence base in risk assessments, showing potentially significant adverse impacts on biodiversity or related ecosystem services. The species included on the Union list are subject to restrictions and measures set out in the Regulation. These include restrictions on keeping, importing, selling, breeding and growing. Member States are required to take action on pathways of unintentional introduction, to take measures for the early detection and rapid eradication of these species, and to manage species that are already widely spread in their territory. The list is dynamic and is subject to regular updates when new species are added. Here, it is published as a standardized Darwin Core Archive and includes for each species: the scientific name, higher classification and stable taxon identifier (in the taxon core), the English, Dutch, French and German common names in line with www.iasregulation.be, the date of entry into force (the date the provisions of the Regulation enter into force for the species, as mentioned in the Commission Implementing Regulation (EU) 2016/141, 2017/1263, 2019/1262, 2022/1203). Issues with the dataset can be reported at https://github.com/riparias/union-list/issues. For more information on the EU IAS Regulation and the list of IAS of Union concern, please see the European Commission webpage on IAS (https://environment.ec.europa.eu/topics/nature-and-biodiversity/invasive-alien-species_en), the IUCN website on the IAS Regulation (https://www.iucn.org/our-work/topic/invasive-alien-species) and the European Alien Species Information Network. We have released this dataset to the public domain under a Creative Commons Zero waiver. We would appreciate it if you follow the INBO norms for data use (https://www.inbo.be/en/norms-data-use) when using the data. If you have any questions regarding this dataset, don't hesitate to contact us via the contact information provided in the metadata or via opendata@inbo.be. This dataset was published as open data for the LIFE RIPARIAS project (Reaching Integrated and Prompt Action in Response to Invasive Alien Species https://www.riparias.be/), with technical support provided by the Research Institute for Nature and Forest (INBO).

Invasive species - American bullfrog (Lithobates catesbeianus) in Flanders, Belgium (Post 2018) is a species occurrence dataset published by the Research Institute for Nature and Forest (INBO). The dataset contains over 24600 occurrences (40 % of which are American bullfrogs) sampled between 2019 until now, in the months April to October. The occurrences were collected through fieldwork and the framework of bullfrog management. Captured bullfrogs were almost always removed from the environment and humanely killed, while the other occurrences are recorded bycatch, which were released upon catch (see bibliography for detailed descriptions of the methods). Therefore, caution is advised when using these data for trend analysis, distribution range calculation, or other. Issues with the dataset can be reported at https://github.com/inbo/sk-analyse We strongly believe an open attitude is essential for tackling the IAS problem (Groom et al. 2015). 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 it 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 (https://doi.org/10.15468/daf62d) 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 visualized the data, or to provide more information, so please contact us via the contact information provided in the metadata, opendata@inbo.be or https://twitter.com/LifeWatchINBO. Data from 2010 to 2018 can be found here: https://doi.org/10.15468/2hqkqn

European stag beetle monitoring network: transect observations is an occurrence dataset published by the Research Institute of Nature and Forest (INBO). This dataset contains transect data for Lucanus cervus, collected using a standard protocol (European stag beetle monitoring network ESBMN). The ESBMN is a European citizen science projects with participants from the Research Institute for Nature and Forest, Natuurpunt, University of Zagreb, insectes.org, Hirschkäferfreunde-Nature two e.V., Centro di ricerca Difesa e Certificazione, Reparto Carabinieri Biodiversità di Verona, Natural History Museum “La Specola”, University of Florence, European Invertebrate Survey, University of Wroclaw, Associação Bioliving, Belgorod State University, National Institute of Biology, Rey Juan Carlos University, Switserland, I.I.Schmalhausen Institute of Zoology, National Academy of Sciences of Ukraine, People’s Trust for Endangered Species, the Royal Hollway University of London and independent researchers. Issues with the dataset can be reported at https://github.com/inbo/meetnetten-occurrences/issues We have released this dataset to the public domain under a Creative Commons Zero waiver. We would appreciate it if you follow the INBO norms for data use (https://www.inbo.be/en/norms-data-use) when using the data. If you have any questions regarding this dataset, don't hesitate to contact us via the contact information provided in the metadata or via opendata@inbo.be.

This first checklist of Tipuloidea of Martinique in largely based on specimens collected during an expedition in the Réserve Biologique Intégrale (RBI) des Pitons du Carbet in January-February 2018, where crane flies appeared to be by far the most abundant Diptera in the pan traps employed. This survey revealed the presence of 26 species of Limoniidae, including one new species in each of the genera Teucholabis Osten Sacken, 1860, Atypophthalmus Brunetti, 1911 and Rhipidia Meigen, 1818. Female specimens of seven other species have not yet been identified to the species level. This inventory, “Dolichopodid survey of Martinique (Diptera: Dolichopodidae)”, consisted of two consecutive parts: (i) a two weeks inventory of the RBI Pitons du Carbet (19/1-4/2/2018) and (ii) a one week survey of mainly coastal sites in the south of the island (5-13/2/2018). Pollet et al. (2018) provide a detailed description of the sampling methods and areas visited. Seven of the eight locations within the RBI des Pitons du Carbet selected for sampling, and pan traps were installed during 22-27 January (both sites at Gros-Morne are considered one location). An 8th location (Plateau Boucher) adjacent to the RBI was added on 2 February. In all but one location, one principal and two supplementary sites were in place for pan trapping. In the principal sites, 10 units of one blue, yellow and white trap were in operation (i.e., a total of 30 traps), whereas only 10 yellow pan traps were employed in supplementary sites. All traps in the RBI were operational at soil surface level and fixed with metal pins; formalin solution (5%) with detergent was used as fixative. At each site, sampling lasted for one full week. A total of 389 pan traps were used in and near the RBI des Pitons du Carbet, and another 72 beyond that area. In addition, the set of samples gathered by Eddy Dumbardon-Martial in the RBI des Pitons du Carbet during a preceding survey (“Etude de la faune entomologique et d’autres invertébrés de la RBI des Pitons du Carbet (Martinique”) in 2016-2017 was also examined, resulting in the discovery of Zelandotipula gelhausi sp. nov. (Tipulidae). Pollet, M., Dumbardon-Martial, E. Maréchal, P. (2018) Dolichopodid survey of Martinique (Diptera: Dolichopodidae). Fly Times 60: 4-12.