602.bengal tigers

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tigers

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  • Submitted by: Raheela Iftikhar2008ag2809Roll No 602

  • The Bengal tiger , or Royal Bengal tiger

    (Panthera tigris tigris) is a tiger subspecies

    native to India, Bangladesh, Nepal &

    Bhutan, & has been classified as endangered.

    Population in India 1706, 200 in Bangladesh ,155 in Nepal

    & 67 81 in Bhutan

  • Bengal tiger is national animal of

    Bangladesh & Panthera tigris is national

    animal of India.

  • Bengal tigers belong to family Felidae.

    The species name tigris is a GREEK word

    arrow . It is thought name was derived

    from a straight (as an arrow) & fast flowing Tigris

    river that flowing between Kurdistan in east central

  • Turkey and the Persian Gulf. The genus

    name Panthera because it is capable of

    roaring along with the lion, the leopard &

    the jaguar.

  • Kingdom Animalia Phylum Chordata Class Mammalia Order Carnivora Family Felidae Sub family Pantherinae Genus panthera Species P. tigris Sub species P .t. tigris

  • Panthera tigris tigris

  • Following are four types of Bengal tigers

    Royal Standard Bengal (orange & black)

    Royal white Bengal (white with black stripes)

    Snow white Bengal (all white with ghost stripes)

    Golden tabby Bengal (red to pale orange)

  • Coat is a yellow to light orange , & the

    stripes range from dark brown to black , &

    the belly is white , & the tail is white with

    black rings.

  • Mutation of Bengal sub species:

    WHITE TIGER

    BLACK TIGER

    WHITE tiger has dark brown or reddish brown

  • stripes on a white back ground & some are

    entirely white. BLACK tigers have tawny,

    yellow or white stripes on black back

    ground color.

  • The total body length, including the tail, of

    males is 270 to 310 cm (110-120 inch),

    while females are 240 to 265 cm (94-104

    inch). The tail measures 85 to 110 cm(33-43 inch).

    Height at shoulder is 90 to 110 cm(35-43 inch).

  • Average wt. of male is 221.2 kg(488lb).

    Average wt. of female is 139.7 kg(308lb).

    Bengal tigers from northern India

    subcontinent are as large as Siberian Tigers with

    length of skull of 332 to 376 cm(13.1-14.8 inch)

  • In northern India & Nepal, males have

    average wt. of 235 kg9520lb) & females

    have wt. of 140 kg(310lb).

    Bengal tigers roar can be heard up to 3 km

    (1.9 mile) away.

  • The pattern of genetic variation in theBengal tigers corresponds that these arrived in India approximately 12,000 years ago. A recent study of two independent fossil finds from Sri Lanka , one dated approximately 16,500 years ago, tentatively classifies them as a tiger.

  • Males matures at age of 4 5 years.

    Female matures at age of 3 4 years.

    Mating can occur at any time but most

    prevalent between November & April.

  • A tigress come into heat at intervals of

    about 3 9 weeks , & is receptive for 3 6

    days. Incubation period of 104 106 days.

    1 4 cubs are born in a shelter situated in tall

    grass. New born cubs weigh 780 1600 g(2lb0.

  • Eyes & ears are closed. Milk teeth start to

    erupt at about 2 3 weeks after birth &

    replaced by permanent t dentition from 8.5

    9.5 weeks of age. They suckle for 3 6 months.

    Eat small amount of solid food at age of 2 months.

  • Begin to take part in hunting at age of 5 6

    month. At age of 2 3 years , they start to

    separate from family group & become

    transient looking for an area, where they can

    establish their on territory.

  • Average temperature of Bengal tiger is 37.5

    C or 99.5 F.

    Pulse of Siberian tiger is 70 80 beats /min. or Ryal Bengal

    tiger is 24 50 beats/min

    Respiration rate of Royal Bengal tiger is 4 12

    breath/ min

  • Tigers are obligate carnivores. They prefer

    hunting large ungulates such as chital ,

    sambar , gaur & to lesser extent water

    buffalo , nilgai & takin. Among medium size prey

    they frequently kill wild boar , hog deer etc.

  • Small prey species such as porcupines ,

    hares & pea fowl form a small part in their

    diet. They also take others predators

    leopards , wolves , jackals , foxes & crocodiles etc.

  • The nature of tigers hunting method & prey

    availability results in a feast or famine

    feeding style. They often consume 18 40

    kg 940-88 lb)

  • In 2010, the population of Bengal tigers in

    Indian sub continent was fewer than

    2500.Of these , 1165 1657 are found in

    India , 200 419 in Bangladesh , 100 194 Nepal

    & 67 81 in Bhutan.

  • The area occupied by tigers is less than

    11,84,911 square km, a 41% decline

    from the area estimated in mid 1990s.

  • The Bengal tiger has been a national symbol

    of India. Indias tiger population decreased

    from 3642 in 1990s to just over 1400 from

    2002 2008.

  • In 2004, 200 tigers were estimated to live in

    Bangladesh, most of them in was

    SUNDARBANS & a few in the eastern hilly

    part of the country.

  • The tiger population in Terai of Nepal is split into 4 isolated

    & vulnerable sub populations:

    Chitwan national park

    Parsa wildlife Reserve

    Bardia National park

    Sukla phanta wildlife

  • Number of adult tigers has reached 155

    after a serious decline.A survey conducted

    from DEC 2009 to MAR 2010 indicates 125

    adult tigers live in Chitwan National park & its

    border area covering 1261 km square.

  • There were probably at least 100,000

    Bengal tigers as recently as the late 19

    century with a range that cover entire

    Indian sub continent, & also in Nepal ,

    Bangladesh, Bhutan, Burma & even eastern Pakistan.

  • In 20th century, population of Bengal tigers

    decreased by more than 95% , dropping to

    a low of perhaps 2000 in the 1970s.The

    Bengal tiger is extinct in Pakistan.

  • Length Males 9 10 ft ,head to tip to tail.

    Shoulder height 36 inch.

    Weight male 400 575.

  • Sexual maturity 3 4 years

    mating usually in spring.

    Gestation period 95 112 days.

    Litter size 2 4 cubs

  • Habit Solitary & nocturnal

    diet Chital, wild boar, monkeys, gaur

    & buffalo.

    Call roar , growl or purr.

    Life span 15 years under normal conditions.