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Waarnemingen.be - Non-native plant occurrences in Flanders and the Brussels Capital Region, Belgium
Citation
Vanreusel W, Barendse R, Steeman R, Gielen K, Swinnen K, Desmet P, Herremans M, all working groups, species validators and observers (2016): Waarnemingen.be - Non-native plant occurrences in Flanders and the Brussels Capital Region, Belgium. v1.7. Natuurpunt. Dataset/Occurrence. https://doi.org/10.15468/smdvdo

Access data
Archived data
Dedicated website
Availability: CC0 To the extent possible under law, the person who associated CC0 with this dataset has waived all copyright and related or neighboring rights to this dataset.

Notes: To allow anyone to use this dataset, we have released the data to the public domain under a Creative Commons Zero waiver. We would appreciate however, if you read and follow these 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 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.

Description
Waarnemingen.be - Non-native plant occurrences in Flanders and the Brussels Capital Region, Belgium is a species occurrence dataset published by Natuurpunt. The dataset contains over 143,000 occurrences of 1,355 non-native plant, algae and fungi species, recorded by volunteers (citizen scientists), mainly since 2008. The occurrences are derived from the database http://www.waarnemingen.be, hosted at the nature conservation NGO Natuurpunt in collaboration with Stichting Natuurinformatie. more

Generalized and/or withheld information: location information is generalized to 4 x 4 km² IFBL grid cells. Observer name, exact XY-coordinates, toponyms, and photographs are not included in the published dataset, but are known in the source database.
Geographic coverage: Flanders and the Brussels Capital Region. These regions are situated in the north of Belgium and cover an area of 13,522 km² and 162 km² respectively (13,684 km² in total or 45% of the Belgian territory). Flanders is largely covered by agricultural land and urban areas while the Brussels Capital Region is mainly urban. All occurrence data are generalized to Instituut voor Floristiek van België en Luxemburg (IFBL) grid cells of 4 x 4 km², with the grid codes indicated in the field verbatimCoordinates. The WGS84 centroids of these grid cells are calculated in decimalLatitude/Longitude with a coordinateUncertaintyInMeters of 2,828 meters (Wieczorek et al. 2004).
Taxonomic coverage: The dataset contains all plant, algae and fungi taxa recorded in Flanders and the Brussels Capital Region which have the status naturalized, naturalizing, exotic, or incidental import in waarnemingen.be. This includes angiosperms (flowering plants), gymnosperms, ferns and allies, algae, mosses, lichens and fungi. This currently covers 1,351 plant, 2 Chromista and 2 fungi species (as well as a number of subspecies, varieties, forms, hybrids and multispecies).
Sampling methods: The observations (species, date, location, observer) were recorded by volunteers (citizen scientists) at http://www.waarnemingen.be. The dataset also includes historical records and datasets imported in waarnemingen.be. The dataset is a mixture of presence-only data, checklists and monitoring data.
Quality control: Recorded data are constantly verified by a group of botanical experts (including professional botanists) taking collection specimens, the observer’s species knowledge, added photographs and known species list of locations into account. The validation procedure from www.waarnemingen.be consists of an interactive procedure in which observers can be asked for additional information by a team of validators, after which the validator manually adds a validation status. Records that are not manually validated are additionally checked by an automated validation procedure that takes into account the number of manually validated observations within a specified date and distance range. 21.6% of the plant records in this dataset are supported by photographs on www.waarnemingen.be. The validation status is indicated in the field identificationVerificationStatus.
The publication of this dataset was supported by the INBO as part of the Flemish contribution to LifeWatch.

Scope
Themes:
Biology > Plants
Keywords:
Fresh water, Citizen participation, Distribution, Invasive species, Observation, Belgium, Brussels, Belgium, Flanders, Chromista, Fungi, Plantae

Geographical coverage
Belgium, Brussels [Marine Regions]
Belgium, Flanders [Marine Regions]

Temporal coverage
30 June 1859 - 30 June 2019

Taxonomic coverage
Chromista [WoRMS]
Fungi [WoRMS]
Plantae [WoRMS]

Parameter
Occurrence of biota

Contributors
Natuurpunt; Plantenwerkgroep Genk, moredata creator
Vlaamse overheid; Beleidsdomein Omgeving; Instituut voor Natuur- en Bosonderzoek (INBO), moredata creator

Project
LifeWatch: Flemish contribution to LifeWatch.eu, more

Dataset status: In Progress
Data type: Data
Data origin: Data collection
Metadatarecord created: 2017-06-29
Information last updated: 2019-07-18
All data in the Integrated Marine Information System (IMIS) is subject to the VLIZ privacy policy