Dataset

O_BALGZAND - Eurasian oystercatchers (Haematopus ostralegus, Haematopodidae) wintering on Balgzand (the Netherlands)

EurOBIS MeasurementOrFact Open in mapper Explore occurrences

O_BALGZAND - Eurasian oystercatchers (Haematopus ostralegus, Haematopodidae) wintering on Balgzand (the Netherlands) is a bird tracking dataset published by Sovon, the University of Amsterdam and the Research Institute for Nature and Forest (INBO). It contains animal tracking data collected during CHIRP (Cumulative Human Impact on biRd Populations) for the study O_BALGZAND using trackers developed by the University of Amsterdam Bird Tracking System (UvA-BiTS, http://www.uva-bits.nl). The study was operational from 2010 to 2014. In total 22 individuals of Eurasian oystercatcher (Haematopus ostralegus) have been tagged while overwintering in the Balgzand area in the Western Wadden Sea (the Netherlands), mainly to study how they utilize intertidal flats in relation to food availability in winter. Data are uploaded from the UvA-BiTS database to Movebank and from there archived on Zenodo (see https://github.com/inbo/bird-tracking). No new data are expected.

See van der Kolk et al. (2022, https://doi.org/10.3897/zookeys.1123.90623) for a more detailed description of this dataset.

These data were collected by Sovon in collaboration with the University of Amsterdam (UvA). Funding was provided by the project Monitoring abundance, composition, development and spatial variation in macrozoobenthos and birds of the national programme for sea and coastal research (ZKO) of the Netherlands Organization for Scientific Research (NWO). Additional funding was provided by NAM and supported by the UvA-BiTS virtual lab on the Dutch national e-infrastructure, built with support of LifeWatch, the Netherlands eScience Center, SURFsara and SURFfoundation. The dataset was published with funding from Stichting NLBIF - Netherlands Biodiversity Information Facility.

Data have been standardized to Darwin Core using the movepub R package and are downsampled to the first GPS position per hour. The original data are available in Dokter et al. (2023, https://doi.org/10.5281/zenodo.10053932), a deposit of Movebank study 1605798640.

Citation
Dokter A M, Oosterbeek K, Baptist M J, Desmet P, van der Kolk H, Bouten W, Ens B J (2026). O_BALGZAND - Eurasian oystercatchers (Haematopus ostralegus, Haematopodidae) wintering on Balgzand (the Netherlands). Version 1.3. Research Institute for Nature and Forest (INBO). Occurrence dataset. https://ipt.inbo.be/resource?r=o_balgzand&v=1.3
Published
July 27, 2026 at 08:23
First registration
June 02, 2022 at 07:59
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)

Contacts

Adriaan M. Dokter
Cornell University

Kees Oosterbeek

Martin J. Baptist
Wageningen Marine Research

Henk-Jan van der Kolk

Bruno J. Ens
Royal Netherlands Institute for Sea Research (NIOZ)

109,032
total submitted occurrences
109,032
accepted occurrences
44
measurements and facts
1
taxa
1
species

Taxa

Missing and invalid fields

Field Missing Invalid
coordinateUncertaintyInMeters 1,527
1.4%
maximumDepthInMeters 109,032
100.0%
minimumDepthInMeters 109,032
100.0%

Quality flags

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

Flag Dropped Records
NO_DEPTH 109,032
100.0%
ON_LAND 56,347
51.7%

Measurement types

DNA derived data