Marcus Fritze

Applied Zoology and Nature Conservation

Loitzer Str. 26
17489 Greifswald


Tel.: +49 (0)3834 420-4222


Research interests

Bats in nature conservation

Bats act as ecosystem service providers and can serve as indicators in nature conservation. Therefore, they are particularly valuable for humans and worth to protect, but many populations of this species group are threatened worldwide. In this area, I am involved in various research projects. At present, I am mainly investigating in population trends and various demographic parameters to find out how well or how badly populations are doing across Germany and Europe. In the BfN-funded project Threatened Data for threatened Species, we work together with long-standing bat conservationists and evaluate counting and marking data. The organisation and effective cooperation between scientists, volunteer researchers and conservationists is my additional important concern.

Furthermore, I am committed to improving the energy system transformation with regard to its compatibility with nature, and in doing so, I conduct research especially in the area of conflict between species protection in the construction and operation of wind turbines.

Hibernation Physiology

Hibernation, or rather winter torpor, is a physiological state in which energy is saved by adjusting the body temperature to the ambient temperature and by downregulating the entire metabolism. This ability is a peculiarity of the animal kingdom and is interesting for us humans from many points of view. How can endothermic mammals survive if their body temperature is less than 10°C over long periods of time? What benefits can we humans derive from this, for example for medicine or space travel? Bats, as hibernating mammals, are a good model for investigating many questions. I am particularly interested in how an immune system can function during hibernation. I am doing research on white-nose disease, a dangerous fungus that attacks bats during hibernation.

 With F.U.N. into the wild

The term F.U.N. stands for research (german: Forschung), environmental education (german: Umweltbildung) and practical nature conservation (german: Naturschutz). Using bats as an example, we want to closely link these three components in order to contribute to biological diversity. More information at .


  • Conservation and Behaviour (Seminar)
  • Current Topics in Conservation (Seminar)
  • Behavioural Methods in Conservation (Praktikum)


  1. Fritze M., Puechmaille S., Costantini D., Fickel J., Voigt C.C, Czirják G.A. (2021):  Determinants of defence strategies of a hibernating European bat species towards the fungal pathogen Pseudogymnoascus destructans. Developmental and Comparative Immunology, 119 (104017) .
  2. Voigt, C.C., Fritze M., Lindecke O., Costantini D., Pētersons G., Czirják G.A. (2020): The immune response of bats differs between pre-migration and migration seasons. Scientific Reports 10 (17384).
  3. Straka, T. M., Fritze, M., Voigt, C.C. (2020): The human dimensions of a green–green-dilemma: Lessons learned from the wind energy — wildlife conflict in Germany. Energy Reports (6), 1768–1777.
  4. Röse, N., Sauerbier, W. Fritze, M. (2020): Langzeitdaten von Mikroklima und Mopsfledermäusen zeigen einen Effekt des Klimawandels in Fledermaus-Winterquartieren. Nyctalus 19 (4), im Druck.
  5. Fritze, M., Lehnert, L.S., Heim, O., Lindecke, O., Roeleke, M.,  Voigt, C.C. (2020): Windenergievorhaben und  Fledermausschutz: Was fordern Experten zur Lösung des Grün-Grün Dilemmas? Wind turbine projects and bat conservation: What do experts demand to solve the green-green dilemma? In: Evidenzbasierter Fledermausschutz in Windkraftvorhaben (Hrsg. Voigt, C.C.) Springer Spektrum, Berlin. ISBN 978-3-662-61454-9 (eBook).
  6. Voigt, C.C., Roeleke, M., Heim, O., Lehnert, L.S., Fritze, M., Lindecke, O. (2020): Expertenbewertung der Methoden zum Fledermausmonitoring bei Windkraftvorhaben - Expert evaluations of methods used for monitoring bats during wind turbine projects.  In: Evidenzbasierter Fledermausschutz in Windkraftvorhaben (Hrsg. Voigt, C.C.) Springer Spektrum, Berlin. ISBN 978-3-662-61454-9 (eBook).
  7. Lindecke, O., Currie, S., Fasel, N.J., Fritze, M.,Kravchenko, K., Kruzsynski de Assis, C., Lehnert, L., Roeleke, M., Voigt-Heucke, S.,Voigt, C.C. (2020) Common noctule (Nyctalus noctula). Handbook of Mammals (eds. Hackländer, K., Zachos, F.E.). SpringerNature, in press.
  8. Voigt, C.C., Straka, T.M., Fritze, M. (2019): Producing wind energy at the cost of biodiversity: A stakeholder view on a green-green dilemma. Journal of Renewable and Sustainable Energy 11, 063303 (2019).
  9. Fritze, M, David Costantini, Jörns Fickel, Dana Wehner, Gábor Á. Czirják, and Christian C. Voigt: Immune response of hibernating European bats to a fungal challenge. Biology Open (2019) 8, bio046078. https://doi:10.1242/bio.046078 .
  10. Fritze, Marcus, Lehnert, Linn S., Heim, Olga, Lindecke, O., Röleke, Manuel, Voigt, Christian C. (2019): Fledermausschutz im Schatten der Windkraft – Deutschlands Experten vermissen Transparenz und bundesweite Standards in den Genehmigungsverfahren. Naturschutz und Landschaftsplanung 51 (1), S. 20-27.
  11. Voigt, C.C, Azam, C., Dekker, J., Ferguson, J., Fritze,M., Gazaryan, S., Hölker, F., Jones, G. Leader, N., Lewanzik, D., Limpens, H.J.G.A., Mathews, F., Rydell, J., Schofield, H., Spoelstra, K., Zagmajster, M. (2018):  Guidelines for consideration of bats in lighting projects. EUROBATS Publication Series No. 8. UNEP/EUROBATS Secretariat, Bonn, Germany, 62 pp.
  12. Dool, Serena, Altewischer, Andrea, Fischer, Nicola M., Drees, Kevin P. T. Foster Jeffrey, Fritze, Marcus, Puechmaille Sebastien J. (2018):Mating type determination within a microsatellite multiplex for the fungal pathogen Pseudogymnoascus destructans, the causative agent of white-nose disease in bats. Conservation Genetic Resources 2018, DOI:   
  13. Voigt, Christian, Currie, Shannon E., Fritze, Marcus, Roeleke, Manuel, Lindecke, Oliver (2018):Conservation Strategies for Bats Flying at High Altitudes. Bioscience 68 (6), 427–435.
  14. Fritze, Marcus & Puechmaille, Sebastien 2018: Identifying unusual mortality events in bats: a baseline for bat hibernation monitoring and white‐nose syndrome research. Mammal Review 48 (3), 224-228.
  15. Fischer, Klaus; Becker, Marlen; Becker, Bianca; Bensch, Julia; Böckers, Andre; Burmeister, Martin; Dombrowski, Janine; Donke, Elisabeth; Ermisch, Rebecca; Fritze, Marcus; Fritzsch, Anna; Hübler, Nora; Ide, Marina; Klockmann, Michael; Mielke, Melanie; Pfender, David; Schiffler, Maria; Schrödter, Marlen; Sund, Lars; Viertel, Caroline (2015): Determinants of tree frog calling ponds in a human-transformed landscape. Ecological Research 30 (3), 439-450.
  16. Fritze, Marcus; Pham, Thi Lam Huong; Ohlendorf, Bernd (2012): Untersuchung der ökologischen Wachstumsbedingungen des sich auf Fledermäusen ansiedelnden Pilzes Geomyces destructans. In: Nyctalus 17 (3-4), S. 146–160.
  17. Fritze, Marcus; Pham, Thi Lam Huong; Zaspel, Irmtraut (2012): Effekt des Bodenbakteriums Pseudomonas veronii-like PAZ1 auf das Wachstum des White-Nose Erregers Geomyces destructans in Antagonisten-Tests. In: Nyctalus 17 (3-4), S. 104–107.
  18. Ohlendorf, Bernd; Fritze, Marcus; Rupsch, Chris; Teumer, Christine; Brockmann, Dagmar (2011): Zum Vorkommen des Pilzes Geomyces destructans bei Fledermäusen in Sachsen-Anhalt. In: Nyctalus 16 (3-4), S. 186–196.
  19. Ohlendorf, Bernd; Fritze, Marcus; Schatz, Juliane (2010): Winterbeobachtungen von Zwergfledermäusen (Pipistrellus pipistrellus) und Kleinabendseglern (Nyctalus leisleri) in Fledermauskästen im Naturschutzgebiet Bodetal/NO-Harz (Sachsen-Anhalt). In: Nyctalus15 (2-3), S. 235–243.