Now on twitter @voigtbatlab

With the help of 200 citizen scientists, Daniel Lewanzik and team found four ways to turn cities bat-friendly: 1) switch off light, 2) plant parks, 3) create ponds, and 4) connect habitats. Check out the paper at

Pressemitteilung über Fledermäuse in der Stadt
PR 2022-01-13 Bats in the city_DE.pdf
Adobe Acrobat Dokument 222.5 KB
Press release on bats in the city
PR 2022-01-13 Bats in the city_EN.pdf
Adobe Acrobat Dokument 216.9 KB

Watch our video clip on juvenile and female Nathusius' pipistrelles being vulnerable at wind turbines

The batlab is part of the Department Evolutionary Ecology at the Leibniz-IZW ( We are contributing to the institute's mission by doing "Research for Wildlife Conservation".


The IZW batlab of PD Dr. Christian Voigt consists of about 20 people, including postdocs, PhD student, master students and scientific and technical staff. 


We are not only doing top-end research for the conservation of wildlife species, we also work hard to communicate our findings to relevant stakeholders and the general public.


Please see below a list of current activities or outlets:

See our latest animated movie about our recent paper



Limitations of acoustic monitoring at wind turbines for assessing fatality risk
Voigt et al. 2021MammalReview.pdf
Adobe Acrobat Dokument 719.5 KB

Job announcement: PhD position available in the IZW batlab in the area of movement ecology and trophic studies. 

For more details look at


Bat-mediated trophic effects on farmland insect diversity 0. Brief expected profile of PhD student Candidates must have a MSc in Ecology or similar field, with profound experience in behavioral ecology, analysis of acoustic parameters, spatial tracking of animals and/or field-based experimental approaches. Additionally, candidates should have a profound knowledge in multivariate statistics, specifically in the use of R, should be fluent in English (both speaking and writing) and have a driver license for field work. Knowledge of German is beneficial, but not mandatory, since field work takes place at remote place in Germany. 


Short Abstract: By consuming other animals, predators may influence the distribution and diversity of their prey. These top-down trophic effects may depend on predator-specific movement patterns, which vary in space and time following, e.g., resource and competitor distribution. Insect predators, such as bats, may affect the abundance and distribution of insects, offering potentially ecosystem services. Using high resolution spatial tracking of bats and automated ultrasonic recording of bats, we plan to quantify the link between bat movements and their top-down trophic effect on farmland insect diversity. To this end, we will allow (control) or prevent (exclosure) bats the access to a set of plots with a pre-defined plant composition, and then measure the trophic effect of bats by comparing arthropod diversity and abundance between control plots and exclosures (Maas et al. 2019). By linking bat movements, and thus bat presence, to landscape features, we will model the spatial distribution of bat-mediated ecosystem services on farmland.


Background and previous work: Overall, we aim at understanding biodiversity patterns that are related to the spatial behavior of predators (Schlägel et al. 2020). In P05, we focus specifically on bat movements and their insect prey within the conceptual framework of the extended movement ecology paradigm (Nathan et al. 2008, Jeltsch et al. 2013). In collaboration with other members of the RTG Biomove, we have established a joint study site, the AgroScapeLabs, north of Berlin. There, we have tracked successfully bats with the cutting-edge technology of the Atlas-System (Weiser et al. 2015, Toledo et al. 2020). The Atlas system is a high-throughput VHF system that automatically triangulates the position of tagged animals based on signal delay at several receiving antenna stations. Encoded VHF signals allow the simultaneous tracking of several animals at high temporal and spatial resolution. Our earlier tracking studies have shown that common noctule bats prefer certain habitats when foraging above farmland (Roeleke et al. 2016, 2018, 2020). Based on acoustic surveys, we documented that local bat activity varied between species and depended largely on landscape features, such as edge structures, ponds and the intensity of farmland practice (Heim et al. 2017, 2018). Further, using metabarcoding of insect DNA in fecal pellets of bats, we have established a good understanding about which insect prey bats are consuming when foraging above farmland throughout the season.


Objectives/Aims: The proposed study will combine the study of animal movements with those of trophic interactions on a landscape scale level. Specifically, we will address the following questions: a) What is the effect of foraging bats on insect abundance and diversity? b) Does insect-feeding by bats alter the insect-mediated ecosystem services (pollination) and disservices (herbivory)? c) Do landscape features within relatively homogenous farmland landscapes modify the top-down trophic effects of bats? 4. Outline work program We plan to measure the activity of syntopic bat species at experimental field exclosures based on automated ultrasonic detectors. This will allow us to quantify the species-specific effect of bats on local insect diversity. By quantifying the level of insect herbivory and seed production at experimental field exclosures, we will estimate how bat predation influences insect-mediated ecosystem services. Lastly, we will tag dozens of bats of syntopic species with miniaturized tags to estimate the spatial behavior of bats in our experimental area. By connecting information on how syntopic bats forage in response to landscape features, we envision to assess the spatial heterogeneity of bat-mediated trophic effects on the landscape level.


Send your application to the address as specified under


See our youtube video about our research on migratory bats in Latvia

Online Fachveranstaltung evidenzbasierter Fledermausschutz in Windkraftvorhaben (April 2021)

Zeitpunkt: 15. April 2021 (ganztägig, deutsch)


Die Registrierung wird Anfang Dezember 2020 auf der Web page der Leibniz-IZW Akademie geöffnet 


Zielpublikum: Behördenvertreter*innen, Vertreter*innen der Windenergieindustrie, Gutachter*innen, Vertreter*innen von Naturschutzverbänden, Wissenschaftler*innen, interessierte Laien 

vorläufiges Programm der Fachveranstaltung 'Evidenzbasierter Fledermausschutz in Windkraftvorhaben"
Adobe Acrobat Dokument 448.7 KB

Online workshop on bat conservation and light pollution (early 2021)

English full-day webinar early 2021 on 'Bat conservation and light pollution' (Lecturers PD Dr. Christian Voigt, IZW, and PD Dr. Franz Hölker, IGB), registration will open in December on the Leibniz-IZW academy web page, see 


For members of authorities, consultants, scientists, members of NGOs and interested laymen

Online workshop Fledermausschutz und Lichtverschmutzung (26.11.2020)

Ganztägiges  Webinar am 26.11.2020: Fledermausschutz und Lichtverschmutzung (Vortragende: PD Dr. Christian Voigt, IZW, und PD Dr. Franz Hölker, IGB), bitte registrieren sie sich über die Leibniz-IZW Akademie unter


Zielpublikum: Behördenvertreter*innen, Gutachter*innen, Beleuchtungsexpert*innen, Wissenschaftler*innen, Vertreter*innen von Naturschutzverbänden, interessierte Laien


Handlungsempfehlung zur Reduzierung der Auswirkungen von künstlichem Licht auf Biodiversität publiziert.

Schroer, S., Weiß, N.-S., Grubisic, M.,Manfrin, A., van Grunsven, R.H.A., Storms, M., Berger, A., Voigt, C.C., Klenke, R., Hölker, F. (2020) Analyse der Auswirkungen künstlichen Lichts auf die Biodiversität - Bestimmung von Indikatoren für die Beeinträchtigung und Ablteiung von Handlumgsempfehlungen zur Vermeidung negativer Effekte im Rahmen von Eingriffen. Naturschutz und Biologische Vielfalt, Heft 168. Bonn-Bad

Comic about bat migration published in collaboration with UNEP/EUROBATS (available in German only; will become available in English towards the end of 2020)

Can be orderd via the UNEP/EUROBATS secretariat

Bitte im UNEP/EUROBATS Sekretariat bestellen:


6th International Berlin Bat Meeting: The Human Perspective on Bats

Online conference

When:  24.-26. March 2021

Please visit the Leibniz-IZW web page for registration 


Target groups: Researchers, members of authorities and NGOs, laymen

4th International Summer School on Stable Isotopes in Animal Ecology

When: 14.-18.9.2020

Where: Berlin, Germany

Costs: 290 Euro



For details see left-hand option ---> Courses, workshops and summer schools

E-Buch Evidenzbasierter Fledermausschutz in Windkraftvorhaben

Evidenzbasierter Fledermausschutz in Windkraftvorhaben
Adobe Acrobat Dokument 3.9 MB

This e-book is available under:


The book is a compilation of concept, review and original articles about the bat-wind energy conflict; a pressing green-green dilemma that is yet unsolved. Articles are in German, yet the summary and figure legends are bilingual (both German and English). All articles were rigorously evaluated in a peer-review system.  

UNEP/EUROBATS Handlungsempfehlungen zum Schutz von Fledermäusen bei Beleuchtungsprojekten

Die deutschsprachige Version der Handlungsempfehlungen, welche unter Leitung von Christian Voigt vom UNEP/EUROBATS Expertengremiums bereits auf Englisch publiziert wurde, ist nun auf Deutsch erschienen. Das frei verfügbar Buch kann unter heruntergeladen werden oder im UNEP/EUROBATS office unter bestellt werden. 


Eine frei verfügbare Version befindet sich auch HIER:

Leitfaden zur Berücksichtigung des Fledermausschutzes bei Beleuchtungsprojekten
Dieser Leitfaden fasst den Wissensstand über die Einfluss von künstlichem Licht bei Nacht auf Fledermäuse zusammen und beschreibt Maßnahmen, wie man den nachteiligen Effekten gegensteuern kann.
Voigtetal2019 EUROBATS_publication guide
Adobe Acrobat Dokument 8.7 MB

UNEP/EUROBATS guidelines for the consideration of bats during lighting projects

These guidelines were formulated by an UNEP/EUROBATS expert group led by Christian Voigt. The guidelines can be downloaded at or a hardcopy can be ordered from the office  

Guidelines for the consideration of bats during lighting projects
These guidelines summarize the state-of-the-art about the effect of artifiical light at night on bats. Additionally, this booklet describes measures to mitigate the negative impacts of artifiicial light at night on bats
EUROBATS guidelines8_light pollution.pdf
Adobe Acrobat Dokument 2.2 MB

E-book on 'Bats in the Anthropocene: Conservation of bats in a changing world'

This e-book reviews the current knowledge on why many bats are threatened worldwide and how to protect bats in a rapidly changing world. Bats comprise more than 1.400 species, are relevant ecosystem service providers, yet many species are at risk. This book is a key publication for bat experts, conservationists and students.

This book has been downloaded more than 400.000 times from the Springer platform at:


The e-book can also be downloaded here:

Bats in the Anthropocene: Conservation of bats in a changing world
Adobe Acrobat Dokument 12.6 MB