Search for: [Description = "Tracks left in the snow by wild carnivores, ungulates, rodents and lagomorphs \(total of 13 species\) were counted over the period of 4 consecutive winters 1977\-1980, over a total distance of 383 km on a route running through a group of habitats in a peaty river valley \(NE Poland\). Predators penetrate bog forests, dense undergrowth and the banks of rivers most intensively."]