Database research record2021·Poland (Warsaw)
Long term snow tracking data of red fox (Vulpes vulpes) and martens (Martes sp.) indicates an increase in number of mesocarnivores in urban area of Warsaw
Mateusz Jackowiak, Jakub Gryz, Karolina Jasińska, Dagny Krauze‐Gryz
Urban Farm DB summary
Density changes of red foxes and martens were investigated in the urban area of Warsaw from 2015-2021 using winter snow tracking. Results were compared with data from 1976-1978 and 2005-2008, showing a gradual increase in the average density of both mesocarnivores across all habitat types since the 1970s. A decrease in density for both species was observed in the 2017/2018 winter season, with the reasons for this decline remaining unclear.