Academic Education
since 05/2022	PhD student, Department of Behavioural Biology, University of Münster; CRC TRR 212 (NC³)
10/2018 - 04/2021	Master of Science, Biosciences, University of Münster
10/2015 - 08/2018	Bachelor of Science, Biosciences, University of Münster
Work Experience
since 06/2021	Research Assistant, Department of Behavioural Biology, University of Münster
03/2019 - 04/2020	Student Assistant, Department of Behavioural Biology, University of Münster
10/2019 - 11/2019	Internship in the group of Prof. Dr. Bugnyar, University of Vienna

The behavioural ecology of optimism: judgement bias and foraging under predation risk in mice Bračić M, Bierbaum L, Peng M, Nimalavachchlan L, Siewert V, Kaiser S, Sachser N, Richter SH (2025) In: Animal Behaviour, 219, 122991. doi:10.1016/j.anbehav.2024.10.005 Research article (journal) \| Peer reviewed \| Published
Forever an optimist? Investigating the temporal consistency of optimism within and across life phases in rats Bierbaum L, Mundinger C, Siewert S, Kaiser S, Richter SH (2025) In: Animal Behaviour, 229, 123334. doi:10.1016/j.anbehav.2025.123334 Research article (journal) \| Peer reviewed \| Published
Structural enrichment for laboratory mice: exploring the effects of novelty and complexity Bohn L, Bierbaum L, Kästner N, von Kortzfleisch VT, Kaiser S, Sachser N, Richter SH (2023) In: Frontiers in Veterinary Science, 10, 1207332. doi:10.3389/fvets.2023.1207332 Research article (journal) \| Peer reviewed \| Published
The effects of different feeding routines on welfare in laboratory mice Feige-Diller J, Krakenberg V, Bierbaum L, Seifert L, Palme R, Kaiser S, Sachser N, Richter SH (2020) In: Frontiers in Veterinary Science, 6, 479. Research article (journal) \| Peer reviewed \| Published

The behavioural ecology of optimism: judgement bias and foraging under predation risk in mice Bračić M, Bierbaum L, Peng M, Nimalavachchlan L, Siewert V, Kaiser S, Sachser N, Richter SH (2025) In: Animal Behaviour, 219, 122991. doi:10.1016/j.anbehav.2024.10.005 Research article (journal) \| Peer reviewed \| Published
Forever an optimist? Investigating the temporal consistency of optimism within and across life phases in rats Bierbaum L, Mundinger C, Siewert S, Kaiser S, Richter SH (2025) In: Animal Behaviour, 229, 123334. doi:10.1016/j.anbehav.2025.123334 Research article (journal) \| Peer reviewed \| Published
Structural enrichment for laboratory mice: exploring the effects of novelty and complexity Bohn L, Bierbaum L, Kästner N, von Kortzfleisch VT, Kaiser S, Sachser N, Richter SH (2023) In: Frontiers in Veterinary Science, 10, 1207332. doi:10.3389/fvets.2023.1207332 Research article (journal) \| Peer reviewed \| Published
The effects of different feeding routines on welfare in laboratory mice Feige-Diller J, Krakenberg V, Bierbaum L, Seifert L, Palme R, Kaiser S, Sachser N, Richter SH (2020) In: Frontiers in Veterinary Science, 6, 479. Research article (journal) \| Peer reviewed \| Published