- Transects for butterflies in Flanders, Belgium
Última versión Publicado por Research Institute for Nature and Forest (INBO) en 11 de junio de 2021 Research Institute for Nature and Forest (INBO)

The Meetnetten - Transects for butterflies in Flanders, Belgium dataset is a sampling event dataset published by the Research Institute of Nature and Forest (INBO). It is part of the suite of monitoring networks for priority species in Flanders, in which data are collected at fixed locations using a standardized protocol ( This dataset contains transect data for 8 priority butterfly species, as well as other butterflies observed during sampling. 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), the cloudiness, temperature, and wind force at the time of the event (in the measurement or fact extension) 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

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 ( 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

For all published datasets, see

Inicio GBIF DwC-A EML RTF Versiones Derechos Citar

Los datos en este evento de muestreo recurso han sido publicados como Archivo Darwin Core(DwC-A), el cual es un formato estándar para compartir datos de biodiversidad como un conjunto de una o más tablas de datos. La tabla de datos del core contiene 17.061 registros.

también existen 2 tablas de datos de extensiones. Un registro en una extensión provee información adicional sobre un registro en el core. El número de registros en cada tabla de datos de la extensión se ilustra a continuación.

  • Event (core)
  • MeasurementOrFact 
  • Occurrence 

Este IPT archiva los datos, sirviendo así como repositorio de datos. Los datos y metadatos están disponibles para descargar en la sección de descargas. La tabla de versiones muestra otras versiones del recurso que se han hecho accesibles al público y permite el seguimiento de los cambios hechos al recurso en el tiempo.


Descargue la última versión de los datos como un Archivo Darwin Core (DwC-A) o los metadatos como EML o RTF:

Datos como un archivo DwC-A descargar 17.061 registros en Inglés (944 kB) - Frecuencia de actualización: annual
Metadatos como un archivo EML descargar en Inglés (23 kB)
Metadatos como un archivo RTF descargar en Inglés (20 kB)

La siguiente tabla muestra sólo las versiones publicadas del recurso que son de acceso público.

¿Cómo referenciar?

Los usuarios deben citar este trabajo de la siguiente manera:

Piesschaert F, Maes D, Brosens D, Westra T, Desmet P, Ledegen H, Veraghtert W, Van de Poel S, Pollet M (2021): - Transects for butterflies in Flanders, Belgium. v1.26. Research Institute for Nature and Forest (INBO). Dataset/Samplingevent.


Los usuarios deben respetar los siguientes derechos de uso:

El publicador y propietario de los derechos de este trabajo es 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.

Registro GBIF

Este recurso ha sido registrado en GBIF con el siguiente UUID: 63938753-1fec-4c08-ae39-e9f8a6576521.  Research Institute for Nature and Forest (INBO) publica este recurso, y está registrado en GBIF como un publicador de datos avalado por Belgian Biodiversity Platform.

Palabras Clave

Samplingevent; butterflies; Lepidoptera; monitoring; priority species; Samplingevent


¿Quién creó el recurso?:

Frederic Piesschaert
Research Institute for Nature and Forest (INBO)
Dirk Maes
Research Institute for Nature and Forest (INBO)
Dimitri Brosens
Research Institute for Nature and Forest (INBO)/ Belgian Biodiversity Platform
Toon Westra
Research Institute for Nature and Forest (INBO)
Peter Desmet
Research Institute for Nature and Forest (INBO)
Sam Van de Poel
Marc Pollet
Research Institute for Nature and Forest (INBO)

¿Quién puede resolver dudas acerca del recurso?:

Frederic Piesschaert
Research Institute for Nature and Forest (INBO)

¿Quién documentó los metadatos?:

Dimitri Brosens
Research Institute for Nature and Forest (INBO) / Belgian Biodiversity Platform
Peter Desmet
Research Institute for Nature and Forest (INBO)
Cobertura Geográfica

Flanders, Belgium

Coordenadas límite Latitud Mínima Longitud Mínima [50,67, 2,53], Latitud Máxima Longitud Máxima [51,51, 5,94]
Cobertura Taxonómica

The target butterfly species for are listed at Other butterflies observed during the sampling are also included. This dataset covers the transect protocol, for which there are 8 target species.

Reino  Animalia (animals)
Filo  Arthropoda
Class  Insecta (insects)
Orden  Lepidoptera (butterflies)
Especie  Cyaniris semiargus (mazarine blue / klaverblauwtje),  Erynnis tages (dingy skipper / bruin dikkopje),  Hesperia comma (silver-spotted skipper / kommavlinder),  Hipparchia semele (grayling / heivlinder),  Lasiommata megera (wall brown / argusvlinder),  Melitaea cinxia (glanville fritillary / veldparelmoervlinder),  Pyrgus malvae (grizzled skipper / aardbeivlinder),  Pyronia tithonus (gatekeeper / oranje zandoogje)
Cobertura Temporal
Fecha Inicial / Fecha Final 2016-01-01 / 2020-05-20
Datos del Proyecto 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.

Fuentes de Financiación Flemish Government
Descripción del Área de Estudio Flanders, Belgium
Descripción del Diseño 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, which is also used for entering the collected data.

Personas asociadas al proyecto:

Punto de Contacto
Frederic Piesschaert
Métodos de Muestreo

Sampling was done using the protocol described in Maes et al. (2019) and explained to volunteers in Ledegen et al. (2018). Cyaniris semiargus (mazarine blue / klaverblauwtje), Erynnis tages (dingy skipper / bruin dikkopje), Hesperia comma (silver-spotted skipper / kommavlinder), Melitaea cinxia (glanville fritillary / veldparelmoervlinder) and Pyrgus malvae (grizzled skipper / aardbeivlinder) occur in less than 30 locations in Flanders. For these species all locations are selected for monitoring and counted annually. Hipparchia semele (grayling / heivlinder), Lasiommata megera (wall brown / argusvlinder) and Pyronia tithonus (gatekeeper / oranje zandoogje) occur in more than 30 locations. For these species a random sample of 30 locations was drawn, which are counted once every three years. Within each selected location, transect counts are carried out. A fixed route of a maximum of 1000m is mapped out, along which the numbers of butterflies per section of 50 m are counted within an imaginary cage of 5 x 5 m around the observer. The sampling protocol may vary a little, depending on the butterfly species. 1. Cyaniris semiargus (mazarine blue / klaverblauwtje): the first generation flies in spring (May), the second generation can be found in high summer (10 July - 10 August). Both seasons are followed up in this monitoring network (at least three field visits per flying season). 2. Erynnis tages (dingy skipper / bruin dikkopje): flies in 2 generations, in spring (May) and in high summer (20 July - 20 August) and is therefore followed up in both seasons (at least six field visits). 3. Hesperia comma (silver-spotted skipper / kommavlinder): we ask at least 3 field visits in good butterfly weather, during the month of August. 4. Hipparchia semele (grayling / heivlinder): in a counting year we ask at least 3 field visits in good butterfly weather, in the period from 20 July to 20 August. 5. Lasiommata megera (wall brown / argusvlinder): in a counting year we ask for 6 field visits in good butterfly weather, 3 in May and 3 in the period from 20 July to 20 August. 6. Melitaea cinxia (glanville fritillary / veldparelmoervlinder): we ask at least 3 field visits in good butterfly weather, between 1 and 31 May. 7. Pyrgus malvae (grizzled skipper / aardbeivlinder): we ask at least 3 field visits in good butterfly weather, during the month of May. 8. Pyronia tithonus (gatekeeper / oranje zandoogje): in a counting year we ask at least 3 field visits in good butterfly weather, in the period from 15 July to 15 August.

Área de Estudio 1. Cyaniris semiargus (mazarine blue / klaverblauwtje) was once widespread, but now endangered, with only one known location. It is bound to grasslands with sufficient Trifolium pratense (red clover), its host plant. 2. Erynnis tages (dingy skipper / bruin dikkopje) in Flanders is limited to a handful of locations in Limburg. It prefers (calcareous) grasslands with Lotus corniculatus (common bird's-foot trefoil). 3. Hesperia comma (silver-spotted skipper / kommavlinder) can be found in a limited number of dry heathland areas with well-developed heather-rich vegetation. 4. Hipparchia semele (grayling / heivlinder) is mainly found on dry heathland, heather-rich grasslands and dunes with open sand, sheep grass or ostrich grass. 5. Lasiommata megera (wall brown / argusvlinder) lives in verges and grasslands. Its populations have deteriorated considerably in recent decades. 6. Melitaea cinxia (glanville fritillary / veldparelmoervlinder) can be found in barren grasslands with a sufficient number of Plantago lanceolata (narrow plantain). 7. Pyrgus malvae (grizzled skipper / aardbeivlinder) can be found in only a handful of locations in Flanders. It lives on nutrient-poor grasslands, with Potentilla erecta (tormentil) as host plant. 8. Pyronia tithonus (gatekeeper / oranje zandoogje) is a common species in Flanders that occurs locally in high densities. The distribution of this species is limited to Europe and in Western Europe Pyronia tithonus reaches high densities, but here and there the species declines: therefore this butterfly was selected as a Flemish priority species.
Control de Calidad Data are collected using a predefined sampling protocol.

Descripción de la metodología paso a paso:

  1. Researchers from INBO and Natuurpunt Studie define and document the appropriate sampling protocol for the target species.
  2. Fieldwork is planned and coordinated by Natuurpunt Studie, using
  3. Data are collected in the field by specialized volunteers, using the predefined sampling protocol.
  4. Volunteers enter the collected data in
  5. A custom SQL view is created in the database to map the original data to Darwin Core as an event core and occurrence extension.
  6. The Darwin Core views are connected to the INBO IPT and documented with metadata.
  7. The dataset is published and registered with GBIF.
Referencias Bibliográficas
  1. 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.
  2. Ledegen H, Veraghtert W & Van de Poel S (2018) Veldwerkhandleiding dagvlinders. Natuurpunt Studie, Mechelen.
Metadatos Adicionales
Identificadores Alternativos 63938753-1fec-4c08-ae39-e9f8a6576521