The Sumatran Tiger
The Sumatran Tiger (Panthera Tigris Sumatra) is a rare tiger subspecies that inhabits the Indonesian island of Sumatra. It has been listed as Critically Endangered on the International Union for Conservation of Nature (IUCN) Red List in 2008 as the population was estimated at 441 to 679 individuals, with no subpopulation larger than 50 individuals and a declining trend.
Every tiger has stripes but stripes of The Sumatran Tiger is darker in fur color and has thicker stripes than other tigers. Lines of small dark specks between regular stripes may be found on the back, flanks, and hind legs. The frequency of stripes is higher than in other subspecies.
The Sumatran Tiger is one of the smallest tiger subspecies. Males weigh 100 to 140 kg (220 to 310 lb) and measure 2.2 to 2.55 m (87 to 100 in) in length between the pegs with the greatest length of skulls of 295 to 335 mm (11.6 to 13.2 in). Females weigh 75 to 110 kg (165 to 243 lb) and measure 215 to 230 cm (85 to 91 in) in length between the pegs with the greatest length of skulls of 263 to 294 mm (10.4 to 11.6 in).
DNA analysis is consistent with the hypothesis that Sumatran Tigers became isolated from other tiger populations after a rise in sea level at the Pleistocene to Holocene border about 12,000–6,000 years ago. In agreement with this evolutionary history, the Sumatran Tiger is genetically isolated from all living mainland tigers.
In 1978, the Sumatran Tiger population was estimated at 1,000 individuals, based on responses to a questionnaire survey. In 1985, a total of 26 protected areas across Sumatra containing approximately 800 tigers were identified. In 1992, it was estimated that 400–500 tigers lived in five national parks and two protected areas. At that time the largest population, comprising 110-180 individuals, was reported from the Gunung Leuser National Park. However, a more recent study shows that the Kerinci Seblat National Park in central Sumatra has the highest population of tigers on the island, estimated to be at 165–190 individuals. The park also was shown to have the highest tiger occupancy rate of the protected areas, with 83% of the park showing signs of tigers.( https://www.pustakabahasainggris.com)
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