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  • Environment Notes-Endangered Animal Species Of India-For W.B.C.S Examination.
    Posted on October 13th, 2018 in Environment Related
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    Environment Notes-Endangered Animal Species Of India-For W.B.C.S Examination.

    পরিবেশবিদ্যার নোট -ভারতের বিপন্ন প্রাণী প্রজাতি  – WBCS পরীক্ষার জন্য।

    When is a species considered critically endangered?

    Critically endangered is the highest risk category assigned by the IUCN (International  Union for Conservation of Nature) Red List to wild species. There are five quantitative criteria to determine whether a taxon is threatened. A taxon is critically endangered when the best available evidence indicates that it meets any of the following criteria.Continue Reading Environment Notes-Endangered Animal Species Of India-For W.B.C.S Examination.

    1. Populations have declined or will decrease, by greater than 80% over the last 10 years or three generations.
    2. Have a restricted geographical range.
    3. Small population size of less than 250 individuals and continuing decline at 25% in 3 years or one generation.
    4. Very small or restricted population of fewer than 50 mature individuals.
    5. High probability of extinction in the wild.

    Critically Endangered Animal Species of India

    The Critically Endangered list includes 10 mammals, 15 birds, 6 reptiles, 19 species of amphibians, 14 fishes etc.

    Critically Endangered Mammals

    1. Pygmy Hog (Porcula salvania).
    2. Andaman White-toothed Shrew (Crocidura andamanensis)
    3. Jenkin’s Andaman Spiny Shrew (Crocidura jenkinsi)
    4. Nicobar White-tailed Shrew (Crocidura nicobarica)
    5. Kondana Rat (Millardia kondana)
    6. Large Rock Rat or Elvira Rat (Cremnomys elvira)
    7. Namdapha Flying Squirrel (Biswamoyopterus biswasi)
    8. Malabar Civet (Viverra civettina)
    9. Sumatran Rhinoceros (Dicerorhinus sumatrensis)
    10. Javan Rhinoceros (Rhinoceros sondaicus)

    Critically endangered birds in India under a different classification can be grouped as:

    1. Migratory Wetland Species – Baer’s Pochard (Aythya baeri), Siberian Crane (Leucogeranus leucogeranus), Spoon-billed Sandpiper (Eurynorhynchus pygmeus)
    2. Non-migratory Wetland Species – White-bellied Heron (Ardea insignis)
    3. Grassland Species – Bengal Florican (Houbaropsis bengalensis), Great Indian Bustard (Ardeotis nigriceps), Jerdon’s Courser(Rhinoptilus bitorquatus), Sociable Lapwing (Vanellus gregarius)
    4. Forest Species – Forest Owlet (Heteroglaux blewitti)
    5. Scavengers – Indian Vulture (Gyps indicus), Red-headed Vulture (Sarcogyps calvus), Slender-billed Vulture (Gyps tenuirostris), White-backed Vulture (Gyps bengalensis).
    6. Practically extinct – Himalayan Quail (Ophrysia superciliosa), Pink-headed Duck (Rhodonessa caryophyllacea)

    Critically Endangered Amphibians

    1. Anamalai Flying Frog (Rhacophorus pseudomalabaricus)
    2. Gundia Indian Frog (Indirana gundia)
    3. Kerala Indian Frog (Indirana phrynoderma)
    4. Charles Darwin’s Frog (Ingerana charlesdarwini)
    5. Kottigehar Bubble-nest Frog (Micrixalus kottigeharensis)
    6. Amboli Bush Frog (Pseudophilautus amboli)
    7. Chalazodes Bubble-Nest Frog (Raorchestes chalazodes)
    8. Small Bush Frog (Raorchestes chotta)
    9. Green-eyed Bush Frog (Raorchestes chlorosomma)
    10. Griet Bush Frog (Raorchestes griet)
    11. Kaikatt’s Bush Frog (Raorchestes kaikatti)
    12. Mark’s Bush Frog (Raorchestes marki)
    13. Munnar Bush Frog (Raorchestes munnarensis)
    14. Large Ponmudi Bush Frog (Raorchestes ponmudi)
    15. Resplendent Shrub Frog (Raorchestes resplendens)
    16. Sacred Grove Bush frog (Raorchestes sanctisilvaticus)
    17. Sushil’s Bush Frog (Raorchestes sushili)
    18. Shillong Bubble-nest Frog (Raorchestes shillongensis)
    19. Tiger toad (Xanthophryne tigerinus)

    Critically Endangered Fishes

    1. Pondicherry Shark (Carcharhinus hemiodon)
    2. Ganges Shark (Glyphis gangeticus)
    3. Knife-tooth Sawfish (Anoxypristis cuspidata)
    4. Large-tooth Sawfish (Pristis microdon)
    5. Long-comb Sawfish or Narrow-snout Sawfish (Pristis zijsron)

    Critically Endangered Corals

    1. Fire corals (Millepora boschmai)

    Critically Endangered Spiders

    1. Rameshwaram Ornamental or Rameshwaram Parachute Spider (Poecilotheria hanumavilasumica)
    2. Gooty Tarantula, Metallic Tarantula or Peacock Tarantula

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