This last piece of information was particularly important for establishing how much territory an increasing tiger population in any area would need.
The government is aiming to double the wild tiger population by 2020.
The world's tiger population is estimated to have fallen from 100,000 to only 5,000 in the 20th century.
On that one day America's white tiger population nearly doubled from 8 to 14.
This may be a reflection of the increasing tiger population.
Nowhere is this more true than in India, home to much of the world's remaining tiger population.
This was significantly lower than the recorded tiger population of the reserve in 1982, which then stood at 44.
The global wild tiger population is estimated at anywhere between 3,062 and 3,948 individuals.
Part of the reason for America's large tiger population relates to legislation.
This reserve has an estimated tiger population of 6-8 tigers.
