Meetnetten.be - Egg counts for butterflies in Flanders, Belgium
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 email@example.com.
For all published Meetnetten.be datasets, see https://www.gbif.org/dataset/search?project_id=meetnetten.be
Piesschaert F, Maes D, Brosens D, Westra T, Desmet P, Ledegen H, Veraghtert W, Van de Poel S, Pollet M (2021): Meetnetten.be - Egg counts for butterflies in Flanders, Belgium. v1.16. Research Institute for Nature and Forest (INBO). Dataset/Samplingevent. https://doi.org/10.15468/hsfq2u
此資料的發布者及權利單位為 Research Institute for Nature and Forest (INBO)。 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.
Samplingevent; butterflies; Lepidoptera; monitoring; priority species; Samplingevent
|界定座標範圍||緯度南界 經度西界 [50.67, 2.53], 緯度北界 經度東界 [51.51, 5.94]|
The target butterfly species for Meetnetten.be are listed at https://meetnetten.be/#group-4. Other butterflies observed during the sampling are also included. This dataset covers the egg count protocol, for which the target species is Phengaris alcon (alcon blue / gentiaanblauwtje).
|Species||Phengaris alcon (alcon blue / gentiaanblauwtje)|
|起始日期 / 結束日期||2016-01-01 / 2020-12-31|
Meetnetten.be is a suite of monitoring networks through which the Flemish Government is collecting high-quality information on 65 priority plant and animal species. These are species on which Flanders has to report to Europe in the framework of the Habitats and Birds Directives, but also other species that are important for the Flemish nature policy.
|研究設計描述||Each monitoring network consists of fixed sample locations in which target species are counted based on a standardized protocol. Data collection relies mainly on specialized volunteers, coordinated by the NGO Natuurpunt Studie. Fieldwork is planned and monitored with the web tool https://meetnetten.be, which is also used for entering the collected data.|
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.
|研究範圍||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).|
|品質控管||Data are collected using a predefined sampling protocol.|
- 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.
- 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.