Tag Archives: tree

What would happen if everyone in Singapore disappears?

Have you ever wondered what would happen to the world if every human were to disappear? Perhaps you would’ve thought that since climate change is due to humans, the climate would reverse back to pre-humanity conditions, but this will take a long time (around 100,000 years actually). So what are some immediate effects, especially on our little island? Let’s take look!

Dangerous Yams?!

Do you know that NParks conducts frequent trimming of weeds in Singapore’s reserves? This ensures that native plants are not smothered by these invasive species and maintains the ecosystem balance in our reserves. An example of an invasive species is the Dioscorea sansibarensis, or Zanzibar yam.

11
All of these are poisonous!

It is a climber which is native to Africa. What makes it so dangerous to its environment is that essentially, the entire plant is toxic. The “yam” part of the plant is often harvested for use in making hunting poison (or even poison for suicide or homicides)! As an invasive species, the Dioscorea has been recorded to overwhelm canopies with its leaves, preventing plants below its leaves from photosynthesising. Wildlife might consume parts of the plant and risk poisoning themselves too. Many areas suffering from this plant’s overgrowth have failed to recover naturally 😦

Imagine if there are no humans around to eradicate these invasive species in our reserves – many of our native species will be out-competed! If keystone plants and primary forests are affected, it might cause a detrimental impact in larger scales.

There are monkeys jumping on the bed!

Ever seen these large banners informing park-goers to refrain from feeding the monkeys?

12

The reason for this is to prevent these macaques, or wildlife in general, to be dependent on humans for food. Unfortunately, most macaques in Singapore are already used to getting scraps of human food and might even attack people in hopes of getting something to eat. In fact, we always warn our participants who go on our tours to keep any plastic bags they have in their bags as these macaques have associated plastic bags with food!

Without humans, there isn’t much to stop these macaques from invading the urban areas for food and territory. Thus, if everyone were to vanish, human-dependent wildlife will definitely be the first to expand into our homes in search for new habitats and food.

Of course, it is very unlikely for us to disappear in a snap. However, it is interesting to think about what the world would’ve looked like or behaved without anthropogenic interruptions. What are some situations you think might arise from the sudden disappearance of humans? Feel free to share them in the comments below!

Written by: Hui Yi

The Five Dollar Tree

Hey there!

Do you have a five-dollar bill? If you do, have you taken a close look at the design of the bill? If you take a closer look, you’ll notice a large tree in the background of the bill but have you wondered what that tree was?

Well, you might’ve guessed based on the title of this post that it is the Tembusu tree!

The Tembusu tree (Fragraea fragrans) is an evergreen tree from the family Gentianaceae that can be found in Singapore. In fact, the Tembusu tree featured in the five-dollar bill is found at Botanic Gardens, where it is deemed by NParks as a Heritage Tree.

Fragraea frangans. Its name resembles the word ‘Fragrance” doesn’t it? Well, that’s because frangans means fragrance in Latin and the Tembusu tree’s name arose from the sweet smell that its flowers give off.

1.jpg
Source

The most distinctive feature about the Tembusu tree is its deeply fissured bark. When I was first introduced to the Tembusu tree, the guides even told me that the Tembusu tree looks “out of place” in Singapore because of its thick bark that resembles insulation (which is odd for a tree native to South East Asia, where temperatures are almost hot all year round).

When you come across older trees, you might notice a distinctive branching pattern in the Tembusu tree. With sufficient space, the branches of the Tembusu tree will grow out horizontally before abruptly growing vertically again, creating a sharp bend in its perpendicular branching pattern that is a signature of the Tembusu tree.

The Tembusu tree’s flowers start out white and mature into a yellow hue and give off a strong, sweet scent during the morning and evenings. Its fruits, when ripe, are round berries that are contain lots of seeds which provide food for many different species.

The wood of the Tembusu tree is hard and durable, making it commonly used for building houses, bridges, rafters and chopping boards amongst other things in the past. That being said, perhaps let’s spare the 150-year-old Tembusu tree in Botanic Gardens, shall we?

Written by: Willis