Red fox density is highly variable, ranging from as little as 1 fox/40 km² to as high as 30 foxes/km² in urban areas where food is abundant.
Red fox density is highly variable.
In the United Kingdom, density varies between one fox per 40 square kilometers in Scotland and 1.17 per square kilometers in Wales, but can be as high as 30 foxes per square kilometers in some urban areas where food is superabundant. Social group density is one family per square kilometer in farmland, but may vary between 0.2-5 families per square kilometer in the suburbs. Fox density in mountainous rural areas of Switzerland is three foxes per square kilometer. 0.17 foxes per square kilometer has been recorded in the grassland/semi desert steppe of Mongolia. In northern boreal forests and Arctic tundra, they occur at densities of 0.1 foxes per square kilometer, and in southern Ontario, Canada at 1 fox per square kilometer. The average social group density in the Swiss mountains is 0.37 families per square kilometer.
• Image | © Karen Bullock, Some Rights Reserved, (CC BY-NC-ND 2.0)
• Sources | (Harris, 1977; Harris & Rayner, 1986; Hoffmann & Macdonald, 1981; Macdonald & Newdick, 1982; Murdoch, 2009; Sillero-Zubiri, 2016; Voigt, 1987; Weber, Meia, & Meyer, 1999)