The World's 25 Most Endangered Primates

I've seen

1. Bornean Orangutan
2. Aye-Aye
3. Geoffroy's Spider Monkey
4. Ring-Tailed Lemur
 
ThylacineAlive said:
I went back through the previous years' lists from 2000 to now and I've seen 21 of the species ever listed.
Click to expand...
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)
 
ThylacineAlive said:
I went back through the previous years' lists from 2000 to now and I've seen 21 of the species ever listed.
Click to expand...

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.
 
TeaLovingDave said:
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.
Click to expand...

Mine is this list minus the purple langur, but including Sanje mangabey, Kipunji, Indri and Golden bamboo lemur ;)
 
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
 
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)
 
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)
 
As a side note, I have seen Red Slender Loris, though not the subspecies listed in previous years.

~Thylo
 
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).
 
I have seen four, all in captivity:
1. Ring-tailed Lemur
2. Sulawesi Crested Macaque
3. Bornean Orangutan
4. Geoffroy's Spider Monkey
 
Chlidonias said:
Sumatran Orangutan was on the last report (2014-2016). I guess they swapped them, but we'd have to wait until the report is available to see why (or if @Giant Panda can see a reason in his copy).
Click to expand...

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.
 
Pertinax said:
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.
Click to expand...
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.
 
Chlidonias said:
The Western Purple-faced Langur is the subspecies nestor, which isn't noted on Giant Panda's opening list.
Click to expand...
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.
 
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