Amur tiger - one of the smaller tiger subspecies , the most northern tiger . Included in the Red knigu.Amursky tiger - lord of vast territories , the area of which the female is 300-500 km ², and the male - 600-800 km ². [ 2] . If within their possessions feed enough , the tiger does not leave its territory. With a lack of game increases the number of cases of tiger attacks on livestock and big dogs .  The Amur tiger is active at night. Female , like the male, marks the territory with urine or scratches on the bark of trees . Moving through his possessions , tiger constantly monitors own labels and signs of other tigers. Scented markers play a role not only in the designation of the hunting territory , they also provide meeting animals of both sexes during the rut . Territory of males and females may overlap , since the males defend their land only from other males , paying particular attention to the main border crossing points . Males live solitary lives as females are often found in groups.Tigers greet each other with special sound, an image with vigorous exhalation of air through the nose and mouth. Signs are also expressions of friendliness touching heads, noses , and even friction sides .