Meetnetten.be - Sightings for Eresus sandaliatus 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 area count data for Eresus sandaliatus, one priority spider species. 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 spider webs, status (present/absent) and scientific name (in the occurrence extension). 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 5x5 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 INBO Meetnetten.be datasets, see https://www.gbif.org/dataset/search?project_id=meetnetten.be
The data in this sampling event resource has been published as a Darwin Core Archive (DwC-A), which is a standardized format for sharing biodiversity data as a set of one or more data tables. The core data table contains 8 records.
1 extension data tables also exist. An extension record supplies extra information about a core record. The number of records in each extension data table is illustrated below.
This IPT archives the data and thus serves as the data repository. The data and resource metadata are available for download in the downloads section. The versions table lists other versions of the resource that have been made publicly available and allows tracking changes made to the resource over time.
Download the latest version of this resource data as a Darwin Core Archive (DwC-A) or the resource metadata as EML or RTF:
The table below shows only published versions of the resource that are publicly accessible.
How to cite
Researchers should cite this work as follows:
Piesschaert F, De Knijf G, Brosens D, Westra T, Desmet P, Van de Poel S, Pollet M (2022): Meetnetten.be - Transects for Eresus sandaliatus in Flanders, Belgium. v1.0. Research Institute for Nature and Forest (INBO). Dataset/Samplingevent. https://ipt.inbo.be/resource?r=meetnetten-lentevuurspin-transect-occurrences&v=1.0
Researchers should respect the following rights statement:
The publisher and rights holder of this work is 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.
This resource has been registered with GBIF, and assigned the following GBIF UUID: a3d0280e-c34a-4c10-a565-8311bb8d17dd. Research Institute for Nature and Forest (INBO) publishes this resource, and is itself registered in GBIF as a data publisher endorsed by Belgian Biodiversity Platform.
Samplingevent; spiders; monitoring; priority species; Flanders
Who created the resource:
Who can answer questions about the resource:
Who filled in the metadata:
|Bounding Coordinates||South West [50.67, 2.53], North East [51.51, 5.94]|
The target species for Meetnetten.be are listed at https://meetnetten.be/#group-2. This dataset covers the area count protocol, for which there is one (Eresus sandaliatus) target species.
|Start Date / End Date||2016-09-10 / 2021-09-18|
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.
|Study Area Description||Flanders, Belgium|
|Design Description||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.|
The personnel involved in the project:
Sampling was done using the protocol described in Van Keer et al. (2020). 1. The Ladybird Spider will be monitored using transects or area counts within delimited areas, where each visible part of the web will be counted. This dataset deals with area count data.
|Study Extent||To support the Flemish and European nature policy, reliable information is needed on the distribution and trends of Flemish and European priority species. 1. Eresus sandaliatus (Martini & Goeze, 1778). The Ladybird spider builds a dome-shaped web on the ground, which turns into a vertical underground living tube on one side. The spider usually lives in this 5-10 cm deep tube. It often catches large and powerful prey, such as dung beetles and ground beetles.|
|Quality Control||Data are collected using a predefined sampling protocol.|
Method step description:
- 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, occurrence extension and measurement or fact extension.
- The Darwin Core views are connected to the INBO IPT and documented with metadata.
- The dataset is published and registered with GBIF.
- Koen Van Keer, Toon Westra, Sam Van De Poel en Geert De Knijf (2020). Monitoringsprotocol spinnen. Versie 2.0.. Rapporten van het Instituut voor Natuur- en Bosonderzoek 2020. Instituut voor Natuur- en Bosonderzoek, Brussel. https://doi.org/10.21436/inbor.17941913
We like to thank all the volunteers for their input in creating this dataset.