Velling, Marc https://orcid.org/0009-0006-4895-805X
Peters, Anne https://orcid.org/0000-0002-6421-7095
Ferry, Nicolas https://orcid.org/0000-0001-5191-9648
Bechert, Ursula
Schwarzenberger, Franz https://orcid.org/0000-0002-2961-0545
Göritz, Frank
Mysterud, Atle https://orcid.org/0000-0001-8993-7382
Müller, Jörg https://orcid.org/0000-0002-1409-1586
Heurich, Marco https://orcid.org/0000-0003-0051-2930
Funding for this research was provided by:
Albert-Ludwigs-Universität Freiburg im Breisgau
Article History
Received: 25 May 2025
Revised: 11 August 2025
Accepted: 19 August 2025
First Online: 23 September 2025
Declarations
:
: The co-author Ursula Bechert is a co-founder of SpayVac-for-Wildlife, Inc., which could be perceived as a conflict of interest. She provided guidance on vaccine administration and the determination of pregnancy status, in addition to contributing to the manuscript. She was not involved in sample collections, lab work, or data analyses.
: The experiment was approved by the Ethics Committee of the Government of Upper Bavaria. Ethical criteria concerning research on wild animals were met (permit number: ROB-55.2-2532.Vet_02-19-130).