NDFF Bat survey by transects

Latest version published by Dutch National Database of Flora and Fauna (NDFF) on Mar 27, 2018 Dutch National Database of Flora and Fauna (NDFF)

This monitoring program counts night-flying bats. A route with at least 20 points and transacts, the distance between 2 points, is set out through a more or less homogeneous landscape. The points need to be at least 400 metres apart, so the route has a minimum length of 8 kilometres, performed on bike.

The observable bats are counted with a bat detector every month from April to September along the route, both on the points and on the transacts. This mainly concerns species that can be easily identified using a bat detector, no recording device. A small number of participants have a recording device, in which case they can also report species that are hard to identify.

Dataset available via https://www.ndff.nl/english / serviceteamndff@natuurloket.nl

Positive observations without zeros.

7,033 records (March 2018)



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Researchers should respect the following rights statement:

The publisher and rights holder of this work is Dutch National Database of Flora and Fauna (NDFF). 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: b47e361e-dc79-417b-a43b-cb5ea8144318.  Dutch National Database of Flora and Fauna (NDFF) publishes this resource, and is itself registered in GBIF as a data publisher endorsed by Netherlands Biodiversity Information Facility.


Metadata; Observation


Who created the resource:

Who can answer questions about the resource:

Who filled in the metadata:

Thijs de Kruif

Who else was associated with the resource:

Henk de Vries
Node manager NLBIF
NLBIF (Netherlands Biodiversity Information Facility) P.O.Box 9517 2300 RA Leiden NL

Geographic Coverage

The Netherlands

Bounding Coordinates South West [50.736, 3.318], North East [53.521, 7.207]

Taxonomic Coverage

No Description available

Order  Chiroptera (Bats)

Temporal Coverage

Start Date / End Date 1990-01-01 / 1997-12-31

Additional Metadata

Alternative Identifiers https://ipt.ndff.nl/resource?r=17_206_punt_transect_vleermuizen