Stichting Calidris - Longterm biometric data of ringed shorebirds

Data Records

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 599 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.

Versions

The table below shows only published versions of the resource that are publicly accessible.

How to cite

Researchers should cite this work as follows:

de Fouw J, Fokker W (2024). Stichting Calidris - Longterm biometric data of ringed shorebirds. Version 1.4. Stichting Calidris. Samplingevent dataset. https://ipt.nlbif.nl/resource?r=vrs-calidris_biometry&v=1.4

Rights

Researchers should respect the following rights statement:

The publisher and rights holder of this work is Stichting Calidris. This work is licensed under a Creative Commons Attribution Non Commercial (CC-BY-NC 4.0) License.

GBIF Registration

This resource has been registered with GBIF, and assigned the following GBIF UUID: 239f5f55-d529-4e50-8aa0-ef388fed119c.  Stichting Calidris publishes this resource, and is itself registered in GBIF as a data publisher endorsed by Netherlands Biodiversity Information Facility.

Keywords

Samplingevent

Contacts

Geographic Coverage

This dataset contains records of shorebirds that are captured, ringed and measured with mistnets on the mudflats in the Dutch Wadden Sea at Schiermonnikoog. Dataset includes occurrence of captured birds and in near future most commonly used biometric measures of wild birds will be added: Wing length, Mass, Bill Length, Total Head Length, Tarsus length, Primary score, body moult index and plumage cover.

Taxonomic Coverage

,

Temporal Coverage

Project Data

Stichting Calidris is a volunteer organization that originated from wader bird research conducted by the Vrije Universiteit Amsterdam. Since 1968, research on waders in the Wadden Sea has been conducted on Schiermonnikoog, initially by the Vrije Universiteit, and since 1997, the monitoring research has continued under Stichting Calidris. Every year in autumn, waders are captured, ringed, and measured. These data provide important insights into long-term changes in the distribution and timing of various wader populations. Additionally, long-term data on the biometry of waders can offer unique insights into their physical condition and, indirectly, the quality of their habitat in the Wadden Sea over an extended period. Not all of these details have been digitized immediately after capture, making them inaccessible to the scientific community. In this project, we aim to digitize a long-term dataset of waders that has been collected since 1968. The collected data include, in addition to standard biometric measurements, detailed information on molting conditions. In the first phase of the project, all data from 1990 to 2023 will be digitized. In the second phase, all data from 1968 to 1990 will be digitized and published on GBIF. The first phase was completed in 2024, and the second phase will be published in 2025.

Sampling Methods

Mist net

Method step description:

1. Standardized biometry measurements

Additional Metadata