Mysłajek, Robert W. http://orcid.org/0000-0001-9619-2868
Olkowska, Emilia
Wronka-Tomulewicz, Marta
Nowak, Sabina
Funding for this research was provided by:
University of Warsaw
Article History
Received: 12 February 2020
Revised: 5 August 2020
Accepted: 17 August 2020
First Online: 1 September 2020
Compliance with ethical standards
: Permission for conducting studies on wildlife crossing structures was granted by the General Directorate for National Roads and Motorways. According to national law, formal ethical approval is not required for studies based on monitoring of indirect signs of animals, such as tracks, or monitoring of animals with camera traps.