Saturday, December 2, 2017

Discovered Just In Time: The Tapanuli Orangutan



The past few years have been very exciting for physical/biological anthropologists.  There have been a number of new discoveries in the field of paleoanthropology, but now recently the first new finding in primatology since 1929 has been announced: the discovery of a new orangutan species.  The Tapanuli Orangutan (Pongo tapanuliensis) is disrupting our current understanding of the Great Apes but also drawing renewed attention on conservation efforts because this new ape species is the most at risk of extinction around the globe.  Today’s blog post will address what this discovery is, what it means for primatological studies, and why this species at such great risk of extinction.

Figure 1: Tapanuli Orangutan

The discovery of the Tapanuli Orangutan (Figure 1) was one part serendipity and one part inevitable.  The species had originally been recorded in the early 20th century by naturalists working on the Island of Sumatra, but no further investigations had been conducted.  Several decades a local rescue group was called to aid an injured orangutan, which reignited the inquiry as the researchers realized that this orangutan was unlike the other species they knew about.  Genetic, morphological, and other differences define this species.  Its facial morphology is unlike that of the Sumatran Orangutan, and its hair is frizzier.  Furthermore, it eats caterpillars, which is quite unique! 

Genetic evidence separates this species from the Sumatran species, and it also demonstrates that it is more evolutionary similar to Bornean Orangutans.  This has led primatologists to gain a greater understanding of the orangutan evolution.  Additionally, there were originally only six species of great apes believed to exist (of which humans are one), and with the discovery of the Tapanuli Orangutan there are now seven.  This information is increasing our knowledge of apes and our evolution.

Unfortunately, with the discovery of the Tapanuli Orangutan come great concerns regarding its survival.  Much like the Sumatran and Bornean species the Tapanuli Orangutan is also endangered but moreso because there are only approximately 800 individuals within the population.  This is incredibly problematic because orangutans in general breed very slowly, meaning they are less likely to increase their population in time to deal with the other threats that they are currently confronting.  These threats include risks to their environment due to the construction of a dam and road and hunting from humans for food and because they are seen as pests.  Researchers seeking to study these creatures are very concerned about their loss, and they are seeking creative ways for encouraging human participation in their protection. 

This creativity may very well come from environmental anthropologists who work in the region or on conservation issues, which is an area of anthropology with a great deal of career potentials at the moment.  If you are interested in pursuing a degree in anthropology but are not sure what specifically you want to focus on this may be an area to consider.  As anthropology is a dynamic degree with a lot of career potential you really cannot go wrong with any area, but if you want to make a difference on environmental issues or for this newly discovered species become an environmental anthropologist today!

References

Gill, V.  2017.  “New Great Ape Species  Identified in Indonesia.”  BBC News.  http://www.bbc.com/news/science-environment-41848816

Goldman, J.  2017.  “New Species of Orangutan Is Rarest Great Ape on Earth.”  National Geographic.  https://news.nationalgeographic.com/2017/11/new-orangutan-species-sumatra-borneo-indonesia-animals/

Knapton, S.  2017.  “New Great Ape Discovered…And Immediately Listed As World’s Most Endangered.”  The Telegraph.  http://www.telegraph.co.uk/science/2017/11/02/new-great-ape-discovered-immediately-listed-worlds-endangered/

Stokstad, E.  2017.  “New Great Ape Species Found, Sparking Fears for Its Survival.”  Science Magazine.  http://www.sciencemag.org/news/2017/11/new-great-ape-species-found-sparking-fears-its-survival


8 comments:

Anonymous said...

I have a question where did the name Tapanuli Orangutan name originate from .- Mykia Chaney

Dr. Christine Elisabeth Boston said...

I'm actually not quite sure. I encourage you to look into it as you're curious. :)

Julian Anderson said...

After reading this blog post it does not seem like they know how to keep this species from dying off because they procreate at a very slow rate and they only have about 800 individuals within their population. It is also problematic when industries are getting rid of dams and cutting down trees they see the tapanuli grangutan as a pest.

Monay P said...

Interesting to learn about this species. The population is small thought. With the threats they're facing, I'm sure they'll survive. Unless they migrate somewhere else in desperation to survive.

Malacia Lowe said...

How many Orangutan are there? I know of only two. The population being small how do they procreate?

- Malacia Lowe

Dr. Christine Elisabeth Boston said...

Well, there are now three species of Orangutans out there. All of them have very small populations, meaning there are fewer mates to procreate with. This limits genetic diversity within the population, which can negatively impact their ability to survive. Plus, because it takes so long for them to mate between raising their offspring that also is a factor that affects their ability to survive as a species.

Anonymous said...

Its very disappointing hearing about animals dying off. However, I'm not sure that I heard of this type of Orangutan before which is why is also sad to hear/read about animals dying off. Most of them are some we never knew existed.
-Kyla Thomas

Anonymous said...

I have never heard of The Tapanuli Orangutan.I like animals, so for me to read that they are just dying off kind of hits home for me.This is a big problem because they breed very very slowly. That has to change.
-Jasmine Busby