The question asks the size of the home range (the territory that a tiger calls his/her own) of wild tigers i.e. usually Bengal and Siberian tigers primarily. Dr Desmond Morris says that each wild tiger has a territory about as big as a modern city. This paints a very nice and clear picture.
Siberian Tiger. Photo in public domain.
On a more technical level, my research indicates that the average home range size of Bengal tigresses in Chitwan National Park (in India) is a fairly small 20 km² but some reached 51 km². These are home ranges in floodplains where prey is abundant or was (the data was published in 1981). Things change of course. In fact, they are changing rapidly. Adult male tigers in Chitwan NP maintain their own home ranges i.e. no overlap with other male tigers but their territories were 2 to 15 times larger than those of females. Each male range normally overlap several female ranges. The variation in male territory sizes depends on the number of females within that male tiger’s territory. Female tigers are a more important resource than food in the area.
Tigress and her cubs drinking. Photo: Swetha Kumar.
The home range size of female tigers in Nagarahole National Park where there are or were high prey densities is about 15 to 20 km². Males have home ranges which typically overlaps several female ranges. You can tell, therefore, that the land that they need is far, far larger than those of females. Prey density dictates the size of territory as where prey is easy to find the tiger roams over a smaller distance.
Siberian tigers, based on snow tracking data, were estimated to have home ranges of 200 to 400 km² for females and between 800 and 1,000 km² for males. These are very large territories partly because their prey migrates in large numbers to winter feeding areas along the coast and partly because of lighter prey densities. They are about ten to twenty times larger than the territories of tigers in Chitwan NP. Other surveys have concluded that female tiger ranges in the Sikhote-Alin region about 450 km² while male home ranges are estimated to be 25 to 50% larger.
Please ask if you want detailed references. The sources are Wild Cats of the World and Cat World.
SOME MORE ON THE TIGER:
Do tigers kill bears? Yes, tigers do kill bears but it will happen quite rarely although there is conflicting information ...Read More
The backyard tiger is an abomination. It is disrespectful of the world's most impressive and well-known animal. People who keep ...Read More
The Indian ranger, Susanta Nanda, in his tweet describes this tiger, captured in a camera trap video, as melanistic. I ...Read More
There is a good amount of misleading information written about the tiger attack. It is something that tends to get ...Read More
The story of the Sumatran tiger is a very sad one. It is the beginning of the end of the ...Read More
There are probably three things about blue tigers that are worthy of coverage: (a) the interesting writings of an early ...Read More
This page is in two parts: the first is the essay on the tiger for kids in Chinese. The second ...Read More
Yes, is the answer. The Amur tiger a.k.a. the Siberian tiger lives in Russia's far eastern region. Although they were ...Read More
The Siberian tiger (Amur tiger) distribution includes the northeastern tip of China at my last reckoning. Therefore historically Siberian tigers ...Read More
RANTHAMBORE NATIONAL PARK, INDIA: A sloth bear came across a couple of Bengal cat tigers mating. The male tiger and ...Read More
The question is a reference to the white blob of fur surrounded by black on the back of the ear ...Read More
Yes, they can but not because of an emotional reaction to something but as a physical means to wash away ...Read More
'Young tigers continue to put on muscle until they are about five years old'. Those are the words of Fiona ...Read More
You might want to know whether male tigers sometimes fight over access to a tigress to mate. Well, they do ...Read More
Yes, some animals can kill a tiger alone while other animals in a pack can kill a tiger. I'll describe ...Read More
Web surfers want to know the average weight of a tiger in pounds. This might seem straightforward but it isn't ...Read More
A research study by the scientists of Cornell Wildlife Health Center, in association with others e.g. Dr. Sarah Cleaveland of ...Read More
The tiger attacks color-blind animals The main reason why tigers are orange and not green is because the large prey ...Read More
Tigers communicate with a combination of vocalisations, scent marks and visual signals. Each tiger hunts alone but they live within ...Read More
A tiger's paw is enormous! The enormous size is made clear when you compare it with the size of a ...Read More