It is a depressing fact that all of these Tiger species are critically endangered for pretty much the same reasons:
Habitat loss, loss of prey, human encroachment, poaching for body parts for Asian medicine, illegal shooting by farmers.
There are less than 400 Amur and Sumatran Tigers left in the wild.
The wild South China Tiger population is believed to be less than 100 animals. To read more on this beautiful animal and a unique project to save it, please visit this website Save China's Tigers
There are less than 10,000 Indian Tigers remaining, when they numbered in excess of 100,000 in fairly recent times.
FUTURE:
THESE SPECIES WILL PROBABLY BECOME EXTINCT IN THE WILD IN A VERY FEW YEARS TIME.