NDFF Waterbird survey by airplane for the IJsselmeer, Markermeer and IJmeer

Jaap Graveland

doi:10.15468/epxloe

NDFF Waterbird survey by airplane for the IJsselmeer, Markermeer and IJmeer

Citation

Graveland J, de Kruif T (2018). NDFF Waterbird survey by airplane for the IJsselmeer, Markermeer and IJmeer. Dutch National Database of Flora and Fauna (NDFF). Metadata dataset https://doi.org/10.15468/epxloe accessed via GBIF.org on 2024-12-13.

Description

Counting birds that fly at an altitude of 500 to 600 feet (ca. 150 to 180 metres), and at an average speed of 70 to 80 knots (130 to 150 km/ph.). Birds are observed by eye or with binoculars (magnification between 7 and 10 times). An observer does the counting and is accompanied by a writer who makes additional observations. Positive observations without zeros. Dataset available via https://www.ndff.nl/english / serviceteamndff@natuurloket.nl https://www.ndff.nl/overdendff/validatie/protocollen/14-207-rws-vliegtuigtelling-vogels-ijsselmeer-ea/

Sampling Description

Method steps

Taxonomic Coverages

Waterbirds

Aves
common name: birds rank: class

Geographic Coverages

Former Zuiderzee, The Netherlands

Bibliographic Citations

Contacts

Jaap Graveland
originator
position: Data manager
Rijkswaterstaat
NL
email: jaap.graveland@rws.nl
homepage: https://www.rijkswaterstaat.nl/english/index.aspx

Thijs de Kruif
metadata author
position: publisher
NL
email: serviceteamndff@natuurloket.nl
homepage: https://www.ndff.nl/english/

Henk de Vries
distributor
position: Node manager NLBIF
NLBIF (Netherlands Biodiversity Information Facility)
P.O.Box 9517
Leiden
2300 RA
NL
email: henk.devries@naturalis.nl

Dries Oomen
administrative point of contact
position: publisher
NDFF
NL
email: serviceteamndff@natuurloket.nl
homepage: https://www.ndff.nl/english/