Descripción
The dataset concerns 690 clutches with collected bird eggs and approximately 4500 found but not collected clutches, mostly in The Netherlands. Much information was available about each clutch from the collector Bernard van Dooren. This included: locality, number of eggs, reference date, status of breeding (lightly bred, severely bred), number of young on reference date, number of young eventually ringed, ring numbers, nest height, habitat and other ecological data. The egg collection is preserved in Naturalis, Leiden as well as the eight notebooks with detailed observations on the clutches by Bernard van Dooren.
Registros
Los datos en este recurso de registros biológicos 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 5.249 registros.
también existen 1 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.
Este IPT archiva los datos y, por lo tanto, sirve como repositorio de datos. Los datos y los metadatos del recurso están disponibles para su descarga en la sección descargas. La tabla versiones enumera otras versiones del recurso que se han puesto a disposición del público y permite seguir los cambios realizados en el recurso a lo largo del tiempo.
Versiones
La siguiente tabla muestra sólo las versiones publicadas del recurso que son de acceso público.
Derechos
Los usuarios deben respetar los siguientes derechos de uso:
El publicador y propietario de los derechos de este trabajo es Netherlands Ornithologists' Union (NOU). En la medida de lo posible según la ley, el publicador ha renunciado a todos los derechos sobre estos datos y los ha dedicado al Dominio público (CC0 1.0). Los usuarios pueden copiar, modificar, distribuir y utilizar la obra, incluso con fines comerciales, sin restricciones.
Registro GBIF
Este recurso ha sido registrado en GBIF con el siguiente UUID: d1805c77-25fa-4538-8c32-3d32a9883259. Netherlands Ornithologists' Union (NOU) publica este recurso y está registrado en GBIF como un publicador de datos avalado por Netherlands Biodiversity Information Facility.
Palabras clave
Metadata; De Kempen; eggs; Bernard van Dooren.
Contactos
- Proveedor De Los Metadatos ●
- Originador ●
- Punto De Contacto
- Chair
- IJskelderlaan 3
- +31.657.557047
- Originador
- Aarperstraat 35
- +31.40.2014398
- Originador
- Data manager
https://orcid.org/0000-0001-6131-7026
Cobertura geográfica
Mostly The Netherlands, and in particular De Kempen area in the Province of Noord-Brabant. Also Belgium and in a few cases also other countries in the world.
| Coordenadas límite | Latitud Mínima Longitud Mínima [38,879, -79,47], Latitud Máxima Longitud Máxima [65,721, 25,318] |
|---|
Cobertura taxonómica
Breeding birds.
| Reino | Animalia |
|---|---|
| Filo | Chordata |
| Class | Aves |
| Orden | Apodiformes, Charadriiformes, Galliformes, Passeriformes, Strigiformes, Coraciiformes, Accipitriformes |
| Familia | Fringillidae, Scolopacidae, Alcedinidae, Sylviidae, Corvidae, Prunellidae, Accipitridae, Hirundinidae, Strigidae, Muscicapidae, Phasianidae, Emberizidae, Apodidae, Turdidae, Acrocephalidae, Paridae |
Cobertura temporal
| Periodo de formación | 1905-1977 |
|---|
Datos del proyecto
Digitizing diaries of Bernardus van Dooren with detailed information about the clutches from 1930-1970.
| Título | Digitalisering historische legseldata van 150 vogelsoorten uit de Kempen |
|---|---|
| Identificador | nlbif2022.006 |
| Fuentes de Financiación | NLBIF call |
| Descripción del área de estudio | De Kempen area, Noord-Brabant as well as other areas in The Netherlands |
| Descripción del diseño | Diaries were analyzed and all relevant data about the collected and found clutches were retrieved and entered in an excel sheet. Especially data on location, bird species and collectors were collated, as well data on the clutches (eggs, young, failures etc) and the habitat in which the clutches were found. |
Personas asociadas al proyecto:
Métodos de muestreo
Methods and skills of Bernard van Dooren are described in: Van Dooren J. & J.F.J.Jansen 2018. Eierzoeker in de Brabantse Kempen: Bernardus van Dooren (1908-1988), Limosa 91.1: 38 – 43.
| Área de Estudio | Most clutches are collected in the De Kempen by collector Bernard van Dooren in the 1930s-1970s. |
|---|---|
| Control de Calidad | Quality control was obtained including Jan van Dooren -- son of Bernardus van Dooren -- in the team. He accompanied his father often in the field while collecting clutches. Questions that arose during the digitization process of the diaries, such as geographic locations, habitat, and other issues, were checked with him. |
Descripción de la metodología paso a paso:
- Analyzing the diaries on the diversity and consistency of quantitative and qualitative information
- Structuring the dataset according this information
- Entering the data from the diaries, evaluating the intermediate results and adjusting the structure of the dataset where necessary.
- After completing entering, checking thoroughly all data per species successively.
- Adding information on taxonomy (based on the Dutch Species Register) and geographic information by a) transforming Dutch grid coordinates into WGS84 coordinates and their uncertainty as well by b) georeferencing textual locality descriptions.
- Writing a R-script to transform the data from Excel into DarwinCore, producing a occurrence file and measurementOrFact file
- Publishing dataset and adding detailed metadata
- Publishing original spreadsheet with more details on Zenodo.
Referencias bibliográficas
- Van Dooren J. & J.F.J. Jansen 2018. Eierzoeker in de Brabantse Kempen: Bernardus van Dooren (1908-1988), Limosa 91(1): 38 – 43.
- BernardusVanDooren_DigitalisatieProject_NLBIF2022.006 10.5281/zenodo.10888751
Metadatos adicionales
In the dataset there are several fields that use codes are definitions that might be not immediately clear.
For eventDate the reference date ("Referentie-datum") is used. This is the when the maximum number of eggs is found, which in most case will be the date when a clutch was found.
Record number is the number used by Bernardus van Dooren for each clutch (these numbers were not fully unique or consistent, there a new occurrenceID has been created)
The term "eimaten" (egg measurements) means how many eggs are measured (length * width) (data on eggs are at Zenodo)
For the following terms the different enumerations are used (when value =
| Propósito | Digitizing notebooks of Bernardus van Dooren with detailed information on found and collected clutches in the 1930s up to the 1970s. These notes have a high historical value and are a rich source of data on the breeding biology and breeding distribution of birds in the Kempen area, province of Noord-Brabant, The Netherlands at that time. The full dataset can be found at Zenodo , NLBIF community. |
|---|---|
| Identificadores alternativos | d1805c77-25fa-4538-8c32-3d32a9883259 |
| https://ipt.nlbif.nl/resource?r=bvd_eggcollection |