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The World's 25 Most Endangered Primates

Discussion in 'Wildlife & Nature Conservation' started by Giant Panda, 30 Nov 2017.

  1. TZDugong

    TZDugong Well-Known Member 5+ year member

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    I've seen

    1. Bornean Orangutan
    2. Aye-Aye
    3. Geoffroy's Spider Monkey
    4. Ring-Tailed Lemur
     
  2. Chlidonias

    Chlidonias Moderator Staff Member 15+ year member

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    That's competitive! I gave it a go too and came out with 22 species (I may have seen Drill as well, but I don't recall). As before, the asterisked ones are those I've seen in the wild (mostly also in captivity) - ten species.

    Madagascar:
    Ring-tailed Lemur (Lemur catta)
    Black and White Ruffed Lemur (Varecia variegata)
    Red Ruffed Lemur (Varecia rubra)

    Asia:
    *Chamba Sacred Langur (Semnopithecus ajax)
    *Golden Langur (Trachypithecus geei)
    *Delacour's Langur (Trachypithecus delacouri)
    Cat Ba Langur (Trachypithecus poliocephalus poliocephalus)
    White-headed Langur (Trachypithecus poliocephalus leucocephalus)
    Grey-shanked Douc (Pygathrix cinerea)
    *Black Snub-nosed Monkey (Rhinopithecus bieti)
    Grey Snub-nosed Monkey (Rhinopithecus brelichi)
    *Sulawesi Crested Macaque (Macaca nigra)
    *Lion-tailed Macaque (Macaca silenus)
    *Western Purple-faced Langur (Semnopithecus vetulus nestor)
    Silvery Gibbon (Hylobates moloch)
    *Western Hoolock (Hoolock hoolock)
    *Sumatran Orangutan (Pongo abelii)
    *Bornean Orangutan (Pongo pygmaeus)

    Neotropics:
    Golden Lion Tamarin (Leontopithecus rosalia)
    Cottontop Tamarin (Saguinus oedipus)
    Geoffroy's Spider Monkey (Ateles geoffroyi)
    Brown Spider Monkey (Ateles hybridus)
     
  3. TeaLovingDave

    TeaLovingDave Moderator Staff Member 10+ year member

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    Thought I would do the same.....


    Africa
    White-Naped Mangabey Cercocebus atys lunulatus
    Roloway Monkey Cercopithecus roloway
    Drill Mandrillus leucophaeus

    Madagascar
    Aye-Aye Daubentonia madagascariensis
    White-Collared Lemur Eulemur cinereiceps
    Blue-Eyed Black Lemur Eulemur flavifrons
    Lake Aloatra Gentle Lemur Hapalemur alaotrensis
    Ring-Tailed Lemur Lemur catta
    Greater Bamboo Lemur Prolemur simus
    Red Ruffed Lemur Varecia rubra
    Black-and-White Ruffed Lemur Varecia variegata

    Asia
    Javan Gibbon Hylobates moloch
    Sulawesi Crested Macaque Macaca nigra
    Lion-Tailed Macaque Macaca silenus
    Sumatran Orangutan Pongo abelii
    Bornean Orangutan Pongo pygmaeus
    Western Purple Langur Semnopithecus vetulus nestor

    South America
    Geoffroy's Spider Monkey Ateles geoffroyi
    Brown Spider Monkey Ateles hybridus
    Black-Headed Spider Monkey Ateles fusciceps
    Yellow-Breasted Capuchin Cebus xanthosternos
    Golden Lion Tamarin Leontopithecus rosalia
    Black Lion Tamarin Leontopithecus chrysopygus
    Cotton-Top Tamarin Saguinus oedipus

    So, in my case I have seen 24 of the species in question.
     
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  4. lintworm

    lintworm Well-Known Member 15+ year member

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    Mine is this list minus the purple langur, but including Sanje mangabey, Kipunji, Indri and Golden bamboo lemur ;)
     
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  5. ShonenJake13

    ShonenJake13 Well-Known Member 10+ year member

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    I'll jump on the bandwagon too then haha

    Madagascar

    Blue-eyed black lemur
    Red ruffed lemur
    Greater bamboo lemur
    Black-and-white ruffed lemur
    Alaotra reed lemur
    Ring-tailed lemur
    Aye-aye

    Africa

    Roloway monkey
    Eastern lowland gorilla
    Drill
    White-naped mangabey

    Asia

    Silvery gibbon
    Sumatran orangutan
    Bornean orangutan
    Lion-tailed macaque
    Sulawesi crested macaque

    South America

    Brown spider monkey
    Geoffroy's spider monkey
    Brown-headed spider monkey
    Golden lion tamarin
    Yellow-breasted capuchin
    Cottontop tamarin

    22 in total
     
  6. devilfish

    devilfish Well-Known Member

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    Looks like I've hit 30:

    Roloway monkey (Cercopithecus diana roloway)
    Grauer's gorilla (Gorilla beringei graueri)
    White-naped mangabey (Cercopithecus atys lunulatus)
    Drill (Mandrillus leucophaeus)

    Lake Alaotra gentle lemur (Hapalemur alaotrensis)
    Ring-tailed lemur (Lemur catta)
    Aye-aye (Daubentonia madagascariensis)
    Greater bamboo lemur (Prolemur simus)
    Grey-headed lemur (Eulemur cinereiceps)
    Sclater's lemur (Eulemur flavifrons)
    Black-and-white ruffed lemur (Varecia variegata)
    Red ruffed lemur (Varecia rubra)

    Javan slow loris (Nycticebus javanicus)
    Sulawesi crested macaque (Macaca nigra)
    Western purple-faced langur (Semnopithecus vetulus)
    Bornean orangutan (Pongo pygmaeus)
    Javan gibbon (Hylobates moloch)
    Sumatran orangutan (Pongo abelii)
    Lion-tailed macaque (Macaca silenus)
    Philippine tarsier (Carlito syrichta)

    Brown-headed spider monkey (Ateles fusciceps)
    Ka'apor capuchin (Cebus kaapori)
    Geoffroy's spider monkey (Ateles geoffroyi)
    Golden lion tamarin (Leontopithecus rosalia)
    Black lion tamarin (Leontopithecus chrysopygus)
    Buff-chested capuchin (Cebus xanthosternos)
    Variegated spider monkey (Ateles hybridus)
    Cotton-top tamarin (Saguinus oedipus)
    Blond capuchin monkey (Cebus flavius)
    San Martin titi monkey (Callicebus oenanthe)
     
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  7. Dassie rat

    Dassie rat Well-Known Member 10+ year member

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    My list is now
    1 Ring-tailed lemur (Lemur catta)
    2 White-collared lemur (Eulemur albocollaris)
    3 Sclater's lemur (E. flavifrons)
    4 Golden bamboo lemur (Hapalemur aureus)
    5 Lac Alaotra bamboo lemur (H. alaotrensis)
    6 Greater bamboo lemur (Prolemur simus)
    7 Black-and-white ruffed lemur (Varecia variegata)
    8 Red-ruffed lemur (V. rubra)
    9 Indri (Indri indri)
    10 Cotton-top tamarin (Saguinus oedipus)
    11 Golden lion tamarin (Leontopithecus rosalia)
    12 Black lion tamarin (L. chrysopygus)
    13 Buff-headed capuchin (Cebus xanthosternus)
    14 Variegated spider monkey (Ateles hybridus)
    15 Brown-headed spider monkey (A. fusciceps)
    16 Geoffroy's spider monkey (A. geoffroyi)
    17 Lion-tailed macaque (Macaca silenus)
    18 Sulawesi crested macaque (M.nigra)
    19 White-naped mangabey (Cercocebus atys lunulatus)
    20 Drill (Mandrillus leucophaeus)
    21 Roloway guenon (Cercopithecus diana roloway)
    22 Moloch gibbon (Hylobates moloch)
    23 Western hoolock gibbon (Hoolock hoolock)
    24 Sumatran orang-utan (Pongo abeli)
    25 Northwest Bornean orang-utan (P. pygmaeus pygmaeus)
    26 Eastern gorilla (Gorilla beringei)
    27 Grauer's gorilla (G. b. graueri)
     
  8. ThylacineAlive

    ThylacineAlive Well-Known Member 10+ year member

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    As a side note, I have seen Red Slender Loris, though not the subspecies listed in previous years.

    ~Thylo
     
  9. Dassie rat

    Dassie rat Well-Known Member 10+ year member

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    It can be difficult to work out whether the primates I've seen in the past are the same species/subspecies listed in 'The World's 25 Most Endangered Primates'.This is because of changes in classification, where a 'species' has been reclassified as several species or has been subdivided into several subspecies.
    I have seen other critically endangered primates, not listed in 'The World's 25 Most Endangered Primates'. These include the mongoose lemur (Eulemur mongoz), black crested gibbon (Nomascus concolor) and western gorilla (Gorilla gorilla).
     
  10. birdsandbats

    birdsandbats Well-Known Member 5+ year member

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    I have seen four, all in captivity:
    1. Ring-tailed Lemur
    2. Sulawesi Crested Macaque
    3. Bornean Orangutan
    4. Geoffroy's Spider Monkey
     
  11. Dassie rat

    Dassie rat Well-Known Member 10+ year member

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    Thanks, Devilfish

    I've seen Philippine tarsiers at Bristol Zoo.
     
  12. Pertinax

    Pertinax Well-Known Member 15+ year member

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    I've just seen a new estimate for the Sumatran Orangutan wild population- given as 14,600. That is considerably higher than previous estimates I've come across which put them as low as 6000.
     
  13. Chlidonias

    Chlidonias Moderator Staff Member 15+ year member

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    I looked that up. It is actually from early last year (2016) rather than being brand new, and stems from the distribution range being larger than thought - 2.56 times as large, apparently - and also including higher altitudes (previously it was assumed they only lived at low altitudes). There's an article here for other people: Sumatran orangutan numbers double but fires destroy habitat

    Obviously this higher estimate of numbers includes the Tapanuli Orangutan (whether it is regarded as a full species or not), and is an estimate based on the size of the available habitat rather than being a direct assessment of numbers.
     
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  14. vogelcommando

    vogelcommando Well-Known Member 10+ year member

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  15. Chlidonias

    Chlidonias Moderator Staff Member 15+ year member

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    Looking at the full report (linked in vogelcommando's post above), they have actually included all the Purple-faced Langur subspecies in this version and not just the Western nestor as previously.

    I've seen all four of the subspecies as it happens.


    By the by, I do really dislike Stephen Nash's primate artworks. They look like he's trying to draw alien animals in a graphic novel, not guidebook illustrations. The orangutan and gorilla are particularly toe-curling.
     
  16. TeaLovingDave

    TeaLovingDave Moderator Staff Member 10+ year member

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    I've just got the two - nominate and nestor.
     
  17. vogelcommando

    vogelcommando Well-Known Member 10+ year member

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