Meetnetten.be - Egg counts for butterflies in Flanders, Belgium
Citation
Piesschaert F, Maes D, Brosens D, Westra T, Desmet P, Ledegen H, Veraghtert W, Van de Poel S, Pollet M (2024). Meetnetten.be - Egg counts for butterflies in Flanders, Belgium. Version 1.20. Research Institute for Nature and Forest (INBO). Sampling event dataset https://doi.org/10.15468/hsfq2u accessed via GBIF.org on 2024-12-13.Description
Meetnetten.be - Egg counts for butterflies in Flanders, Belgium is a sampling event dataset published by the Research Institute of Nature and Forest (INBO). It is part of the Meetnetten.be suite of monitoring networks for priority species in Flanders, in which data are collected at fixed locations using a standardized protocol (https://meetnetten.be). This dataset contains egg counts for 1 priority butterfly species (Phengaris alcon). Here it is published as a standardized Darwin Core Archive and includes for each sampling event an eventID, date, location and sampling protocol (in the event core) and for each occurrence an occurrenceID, the number of recorded individuals, status (present/absent) and scientific name (in the occurrence extension). Issues with the dataset can be reported at Issues with the dataset can be reported at https://github.com/inbo/meetnetten-occurrences/issues
Generalized and/or withheld information: as these are sensitive priority species, location information is generalized to 1, 5 or 10 km Universal Transverse Mercator (UTM) grid cells. Original locations are available upon request.
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.
For all published Meetnetten.be datasets, see https://www.gbif.org/dataset/search?project_id=meetnetten.be
Sampling Description
Study Extent
Phengaris alcon (alcon blue / gentiaanblauwtje) can be found in wet heathlands with Gentiana pneumonanthe (marsh gentian / klokjesgentiaan) and a sufficient number of ants. Not the butterflies, but the eggs of this species are counted on the host plant. Either the entire area is examined and all eggs are mapped or sample areas are used (in the case of large populations).Sampling
Sampling was done using the protocol described in Maes et al. (2019) and explained to volunteers in Ledegen et al. (2018). Egg counts for Alcon blue are done in plots of 10 x 10 m on locations with the highest density of gentians. Counting takes place once a year, in August.Quality Control
Data are collected using a predefined sampling protocol.Method steps
- Researchers from INBO and Natuurpunt Studie define and document the appropriate sampling protocol for the target species.
- Fieldwork is planned and coordinated by Natuurpunt Studie, using https://meetnetten.be.
- Data are collected in the field by specialized volunteers, using the predefined sampling protocol.
- Volunteers enter the collected data in https://meetnetten.be.
- A custom SQL view is created in the meetnetten.be database to map the original data to Darwin Core as an event core and occurrence extension.
- The Darwin Core views are connected to the INBO IPT and documented with metadata.
- The dataset is published and registered with GBIF.
Taxonomic Coverages
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Animaliacommon name: animals rank: kingdom
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Arthropodarank: phylum
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Insectacommon name: insects rank: class
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Lepidopteracommon name: butterflies rank: order
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Phengaris alconcommon name: alcon blue / gentiaanblauwtje rank: species
Geographic Coverages
Bibliographic Citations
- Maes D, Ledegen H, Van de Poel S & Westra T (2019) Monitoringsprotocol Dagvlinders: Versie 2.0. Rapporten van het Instituut voor Natuur- en Bosonderzoek 2019 (56). Instituut voor Natuur- en Bosonderzoek, Brussel. https://doi.org/10.21436/inbor.16744530 -
- Ledegen H, Veraghtert W & Van de Poel S (2018) Veldwerkhandleiding dagvlinders. Natuurpunt Studie, Mechelen. -
Contacts
Frederic Piesschaertoriginator
Research Institute for Nature and Forest (INBO)
BE
email: frederic.piesschaert@inbo.be
userId: http://orcid.org/0000-0002-5843-646X
Dirk Maes
originator
Research Institute for Nature and Forest (INBO)
BE
email: dimitri.brosens@inbo.be
userId: http://orcid.org/0000-0002-7947-3788
Dimitri Brosens
originator
position: researcher
Research Institute for Nature and Forest (INBO)/ Belgian Biodiversity Platform
BE
email: dimitri.brosens@inbo.be
userId: http://orcid.org/0000-0002-0846-9116
Toon Westra
originator
Research Institute for Nature and Forest (INBO)
BE
email: toon.westra@inbo.be
userId: http://orcid.org/0000-0003-2478-9459
Peter Desmet
originator
Research Institute for Nature and Forest (INBO)
BE
email: peter.desmet@inbo.be
userId: http://orcid.org/0000-0002-8442-8025
Hannes Ledegen
originator
Natuurpunt
BE
email: hannes.ledegen@natuurpunt.be
homepage: http://www.natuurpunt.be
Wim Veraghtert
originator
Natuurpunt
BE
email: wim.veraghtert@natuurpunt.be
homepage: http://www.natuurpunt.be
Sam Van de Poel
originator
Natuurpunt
BE
email: sam.vandepoel@natuurpunt.be
homepage: http://www.natuurpunt.be
Marc Pollet
originator
Research Institute for Nature and Forest (INBO)
BE
email: marc.pollet@inbo.be
userId: http://orcid.org/0000-0001-5198-5928
Dimitri Brosens
metadata author
Research Institute for Nature and Forest (INBO) / Belgian Biodiversity Platform
BE
email: dimitri.brosens@inbo.be
userId: http://orcid.org/0000-0002-0846-9116
Peter Desmet
metadata author
Research Institute for Nature and Forest (INBO)
BE
email: peter.desmet@inbo.be
userId: http://orcid.org/0000-0002-8442-8025
Frederic Piesschaert
administrative point of contact
Research Institute for Nature and Forest (INBO)
BE
email: frederic.piesschaert@inbo.be
userId: http://orcid.org/0000-0002-5843-646X