Saturday, October 8, 2011

Range and habitat



Range of the tiger in 1900 and 1990

Range and habitat



In the past, tigers were found throughout Asia, from the Caucasus and theCaspian Sea to Siberia and Indonesia and even in Borneo[16] and Palawan in the Philippines.[17] Today the range of the tiger is only 7% of what it used to be.[18] Furthermore, within the past decade alone, the estimated area known to be occupied by tigers has declined by 41%.[18]

During the 19th century, the tiger completely vanished from western Asia and became restricted to isolated pockets in the remaining parts of their range. Today, their range is fragmented, and certain parts degraded, and extends fromIndia in the west to China and Southeast Asia in the east.[19] The northern limit is close to the Amur River in south eastern Siberia. The only large island inhabited by tigers today is Sumatra. Tigers vanished from Java and Bali during the 20th century. In Borneo they are known only from fossil remains.

Tiger habitats will usually include sufficient cover, proximity to water, and an abundance of prey. Bengal tigers live in many types of forests, including wet; evergreen; the semi-evergreen of Assam and eastern Bengal; the mangrove forest of theGanges Delta; the deciduous forest of Nepal, and the thorn forests of the Western Ghats. Compared to the lion, the tiger prefers denser vegetation, for which its camouflage colouring is ideally suited, and where a single predator is not at a disadvantage compared with the multiple felines in a pride.

Among the big cats, only the tiger and jaguar are strong swimmers; tigers are often found bathing in ponds, lakes, andrivers. During the extreme heat of the day, they often cool off in pools. Tigers are excellent swimmers, and are able to carry prey through the water.

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