Peeva, Stanislava http://orcid.org/0000-0002-8325-0966
Raichev, Evgeniy http://orcid.org/0000-0002-7531-7075
Georgiev, Dilian
Yankov, Yanko
Tsunoda, Hiroshi http://orcid.org/0000-0001-6214-5625
Kaneko, Yayoi
Funding for this research was provided by:
Trakia university research fund
Article History
Received: 24 February 2022
Accepted: 7 September 2022
First Online: 16 September 2022
Declarations
:
: The authors report no potential conflict of interest. Approval from research ethics committees is not required to achieve the objectives of this study, as the experimental work was conducted using a non-invasive method—observations using camera traps.