University of Plovdiv / Plovdiv University of Plovdiv Publishing House Materials / bridge Plovdiv / Plovdiv University of Plovdiv Publishing House / /
NaturalFeature
Stryama River / Zora Sazliika River / Sazliika River / river Trankovo / Upper Thracian Lowland / West Rhodopes Mountain / river Plovdiv / /
Organization
South Bulgaria Dilian G. Georgiev Department of Ecology and Environmental Conservation / IUCN / Plovdiv University of Plovdiv Publishing House Materials / University of Plovdiv / Plovdiv University / Union of Scientists in Bulgaria / Plovdiv Publishing House / /
On the substrates used for marking by the Stone Marten (Martes foina Erxl.) at the lowland areas of South Bulgaria