The Bengal tiger is the most numerous tiger subspecies. They can be natively found across the Indian subcontinent. They are considered to be the second largest subspecies of tiger in the world, behind the Siberian tiger. Over the past century, Bengal tiger numbers have dropped significantly; by 2011, the Bengal tiger population was estimated to be at fewer than 2,500 individuals with a decreasing trend. As of 2010, the Indian Bengal tiger populations have been estimated to be in between 1,706 to 1,909. These numbers have come about due to logging, prey dispersal, and human poaching. Since 2010, they have been classified as endangered by the IUCN.