territoriality

reviirikäyttäytyminen The fact or legal status of being a territory.
puhekieltä The pattern of behaviour in animals that defines and defends a territory.
A pattern of human behaviour characterised by defence of a particular territory or area of interest.
1999, (w), Genome, Harper Perennial 2004, p. 99:

These criticisms had a whiff of territoriality about them.