Dataset

MEDGULL_ANTWERPEN - Mediterranean gulls (Ichthyaetus melanocephalus, Laridae) breeding near Antwerp (Belgium)

EurOBIS MeasurementOrFact Open in mapper Explore occurrences

MEDGULL_ANTWERPEN - Mediterranean gulls (Ichthyaetus melanocephalus, Laridae) breeding near Antwerp (Belgium) is a bird tracking dataset published by the Research Institute for Nature and Forest (INBO). It contains animal tracking data collected by the LifeWatch GPS tracking network for large birds (http://lifewatch.be/en/gps-tracking-network-large-birds) for the project/study MEDGULL_ANTWERPEN, using trackers developed by Ornitela (https://www.ornitela.com). The study has been operational since 2021. In total 14 individuals of Mediterranean gull (Ichthyaetus melanocephalus) have been tagged in their breeding area near the city of Antwerp (Belgium), mainly to study their habitat use and migration behaviour. Data are automatically synced with Movebank and from there periodically archived on Zenodo (see https://github.com/inbo/bird-tracking).

This dataset was collected using infrastructure provided by INBO and funded by Research Foundation - Flanders (FWO) as part of the Belgian contribution to LifeWatch.

Data have been standardized to Darwin Core using the movepub R package and are subsampled to the first GPS position per hour. The original data are available in Stienen et al. (2026, https://doi.org/10.5281/zenodo.22108360), a deposit of Movebank study 1609400843.

Citation
Stienen E W, Desmet P, Govaert S, Milotic T, Spanoghe G, Janssens K (2026). MEDGULL_ANTWERPEN - Mediterranean gulls (Ichthyaetus melanocephalus, Laridae) breeding near Antwerp (Belgium). Version 1.4. Research Institute for Nature and Forest (INBO). Occurrence dataset. https://ipt.inbo.be/resource?r=medgull_antwerpen&v=1.4
Published
August 31, 2026 at 12:09
First registration
June 01, 2022 at 14:47
License
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)
236,855
total submitted occurrences
236,835
accepted occurrences
40
measurements and facts
1
taxa
1
species

Taxa

Missing and invalid fields

Field Missing Invalid
coordinateUncertaintyInMeters 236,855
100.0%
decimalLatitude 20
0.0%
decimalLongitude 20
0.0%
maximumDepthInMeters 236,855
100.0%
minimumDepthInMeters 236,855
100.0%

Quality flags

The OBIS data quality flags are documented at https://github.com/iobis/obis-qc.

Flag Dropped Records
NO_DEPTH 236,855
100.0%
ON_LAND 144,815
61.1%
NO_COORD 20
0.0%

Measurement types

DNA derived data