Thank you for visiting the United by Ecology database!

This page is created to publish all extraordinary bat sounds that are recorded by field workers of Gaia Ecologie. By giving it this shape, we made the recordings available for the public as reference material and to learn from.

How does it work?

  • All recordings are uploaded to xeno-canto.org, where the audio files can be downloaded. A number that corresponds with the upload on Xeno-canto is mentioned underneath the screenshots of the sonograms.
    By clicking on the audio file number, you will be forwarded to the right page on Xeno-canto.

  • All recordings are reviewed and managed by Sarah Mahie, an ecologist with a keen interest in bats.

  • In 2024 there was a collaboration with Gaia Ecologie, an ecological research agency.

  • The main focus of this database are social calls of bats, due to their variability between species and the variety of calls within a single species.

  • Not every identification is flawless, sometimes a species is designated based on assumptions. Information about the recording and any reasoning for the identification is written before the shown snippits of the sonogram of the recordings in question. If you have a remark about a recording or it's identification, feel free to shoot a message by filling out the form on the About page.

  • There is always more to learn.

News:

June 2024 - One of our soprano pipistrelle (Pipistrellys pygmaeus) sightings in May was in a totally new area for this species: near Grou in the province Friesland. The sighting is validated by a third party and the national distribution map for this species (NDFF) is now updated with our addition! Every contribution counts.

 

Highlighted audio files:

Not so common calls of the common pipistrelle

2 Oct 2024 00:02

The common pipistrelle (Pipistrellus pipistrellus) is the most common bat species in the Netherlands. One would assume that all it's calls would be well documented. But even well-known species have their surprises. This is a collection of the most eyebrow-raising recordings of common pipistrelle calls.

Read more »

Unusual social calls of the Nathusius' pipistrelle outside of mating season in the Netherlands

31 Jul 2024 00:36

Something that absolutely fascinates me, is the Nathusius' pipistrelle's (Pipistrellus nathusii) use of unusual social calls outside of the mating season (recordings before the 15th of July), with emphasis on slow trills, fast trills and wavy-line calls. These kind of calls are almost non-spoken about in literature. Other unusual social calls to encounter during spring season are part D and part E of the type D social call.

Read more »

All recordings are licensed under the following Creative Commons Attribution-NonCommercial-NoDerivs 4.0 license and in courtesy of Sarah Mahie. 

Create Your Own Website With JouwWeb