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2018-01-31 | Wolves in Drawa Forest

We applied GPS/GSM telemetry, non-invasive genetic sampling, year-round tracking, camera trapping and howling stimulations to determine the number of family groups, population density and home-range sizes of wolves in the Drawa Forest (western Poland). Results of our studies were published in "Mammalian Biology". The number of wolves in DF increased from 14 individuals in 2013/2014 to 30 in 2016/2017. The annual rate of increase varied from 43% in 2014/2015 to 7% in the final year. Population density for the whole study area was relatively low (1.2 indiv./100 km2 in 2016/2017), but densities within territories of two packs studied with telemetry were 1.9 and 1.5 indiv./100 km2. Mean pack size varied between 3.5 and 5.6 individuals, with the largest pack comprising 8 wolves. Mean number of pups observed in summers (June-August) was 4.5. Home ranges of three collared male wolves ranged from 321.8 to 420.6 km2 (MCP 100%). Mean near neighbour distance between centres of 6 tracked pack homesites was 15.3 km. The article was co-authored by Dr. Robert Mysłajek, Maciej Tracz, Magdalena Tracz, Dr. Patrycja Tomczak, Maciej Szewczyk, Dr. Natalia Niedźwiecka and Dr. Sabina Nowak.

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