3 June 2022 – Night walk at Bukit Batok Nature Park

BBNP (Bukit Batok Nature Park) – alongside Pasir Ris Park and others – is an excellent place for a nature walk at night! For BBNP, Tony shared that this was because of its ecological connectivity with the nearby Bukit Timah Nature Reserve.

We learnt many things about how to do a night walk. First, bring a torch light!

Spotted Colugo! You need a torchlight and a good photograph. Credits: Alopias.

Regarding the use of a torch – it depends on the intensity but there are two rules of thumb. First, always use it such that the base and back of the torchlight is parallel to your forehead – this enables you to see the reflection of an animals’ eye with lower intensity. Second, use it sparingly with the knowledge of which species are more sensitive.

Tony shared with us so many things within and beyond BNNP. Beginning from the edges of the forest, we tried to spot snakes, only finding a snake moult later on – underneath park pavilions are a good place to spot them. Amidst the mixture of common names and scientific ones, we saw: Fishtail palm, Birds nest fern, Colugo, Breadfruit leaf, Syzygium grande; Sea Apple, Ten men tree leaves, Koster’s curse, Macaranga bancana, Baby rubber, Cinnamon.

Tony taught us the importance of common trees in setting up an ecosystem, and we were taught to identify trees holistically as well from a mixture of its features and characteristics – smell, sight, and different parts! When walking at night, it is even more useful to attempt identifying a tree from the leaf from the forest ground.

I didn’t have too many photographs – it is nice to be able to share, and I hope to be able to share my lessons from/of nature with others as well :).

30 May 2022 – Rail Corridor

As my luck would have it – in my previous entomology walk the guides mentioned they weren’t too good with butterflies, and here we have Rachel from NParks – who is super nice and super knowledgeable + interested in butterflies!

The Rail Corridor necessarily brings into conversation nature and society. We walked from Rail Corridor Central to Rail Corridor North – these terms can be found on NPark’s website. Its story is of the previous KTM Rail turned Rail Corridor (anchored by the state’s current focus on nature corridors and ecological connectivity) – tying heritage and nature causes together. It was fascinating to hear about how the Rail Corridor has been planned through public consultation and it would be interesting to interrogate the extent which this project has and would serve the broadest possible public. Like nature itself – railways, kampung culture – through attention to details of particular flowering plants being planned – the project speaks to national as well as transnational and regional interests, of which interesting papers have been written, and our a little walk was a great introduction to both its historic past and its growing natural heritage.

Group shot! I am in white shirt.

In this walk, with a little help from my friends, I learned that my phone already had a “Micro-Lens” setting that is especially useful in taking photographs of insects and plants. Finding the right focal length makes a world of difference in holding up nature into scientific understanding – which I learned belatedly after our entomology (study of insect walk)! I also started an iNaturalist account and thus knew scientific names better, alongside my introductory readings into the Tree of Life – the inter-species genealogies that bring us food and ourselves into being.

My new inaturalist account, documenting our Rail Corridor walk! 🙂

A larger album of photographs I took that day can be found here. Credits to our team, especially Eugene – a partial list of the species we saw were: Pin-striped Tit Babbler, Simpoh Air, Common Blue Skimmer, Malayan Eggfly, Chinese Fountain Grass Cenchrus purpurascens Thunb., Chinese Violet Asystasia gangetica (L.) T. Anderson, Golden Orb Weaver, Yellow Vein Lancer, Scarlet Flash (On Leea indica), Horsefields Baron , Senduduk Melastoma malabathricum, Elbowed Pierrot, Yellow Assassin Bug, Ixora Hybrid, Clouded Monitor Juvenile, White Wing Pseudomussaenda flava, Common Grass Yellow (On Leea Rubra), Pin-striped Tit Babbler, Tapioca Manihot sp., Monkeys Potato Coleus monostachyus (P.Beauv.) A.J.Paton, Long Brand Bush Brown, Lantana camara L. (Flowers and Leaves), Common Parasol, Elephant_s Ear Colocasia esculenta sp.

This was a really enjoyable walk! Most of our group went for lunch after at Springleaf – where some of us shared that the walks give us a tangible sense of what goes into our plate – from an appreciations ecosystems to food supply – that discussions about the climate, biodiversity, and societal priorities are interlinked – of which everyone should play a part in being a Biodiversity Friend! Learning is a never-ending journey, and it begins with the tangible experience of how nature underpins so much of what we value as a society.

15 May 2022 – Windsor Nature Park Insect Walk

My first BFF nature walk is with these creepy critters! It was an absolute pleasure to have had this entomological walk as our first, with so many guides and excited participants.

The world of insects – small, tiny, diverse, understudied, and misunderstood by the public – is full of rich ecosystems in which scientists are far from mustering. What is thus interesting for an insect walk is that observation comes first – and in that sense, the beginner to biodiversity is in equally immersed in the action-packed, minuscule world as the nature guides leading us. Two themes thus framed my reflection about our walk – the insect world itself, and our crew’s access to it.

Firstly, insects are the foundation for many ecosystems. We began seeing how many elements of the natural environment around us were in interaction with different insects – of ecosystems within ecosystems. We started off with an understanding of how Fig Trees are keystone species in the forests – one study reveals that as many as 1,270 species of mammals and birds feed on different parts of fig trees. Within this enormous importance of fig trees – their different species could have exactly one kind of wasp which is the only pollinator of its fruit – they enter from the bottom and pollinate. Such relationships illustrate the importance of insects to ecosystems, of which they are many!

When you see something, tell us! The walk was full of many pauses like these, with our large enthusiastic group split from the front and the back, looking onto the expected and unexpected details, with our differing photography equipment enabling resolution into what we saw.

Photocredits for right and bottom-left: James Khoo. Top-left, license under creative commons by myself.

Secondly, as suggested by the photographed resolution into the same group of little insects in the left column of the above gallery, the limits of our knowledge describe the limits of our world. This is especially the case for an insect walk – different people come in with different blindspots, and in our case there were no butterfly experts, .. and even when there are experts: the fancies of the imagination range from well-known descriptions of particular creatures to the peculiar behaviour of species that we know that we don’t know.

Thus, in this dialogue of knowing and self-knowing – we arrived at a range of information from facts, to informed interpretations, to science fiction, to pure imagination. First, we encountered termite trails, plant hoppers, beetles, assassin flies, caterpillars, beetles, green tree snails. Second, we learned to guess from the remains of various insects in various parts of their lifecycle – from caterpillar poop to the underleaf of a symbiotic leaf to certain kinds of ants and more. Third, we frequently drew on pokemon references when we reached further into the realm of observation and a lack of understanding (perhaps mine! as a newb), especially in reference to specific interesting behaviours – ladybug mimics, parasitic behaviours, secretions, “abilities”, and betrayals. In the last category where imagination outran understanding, we had to further dispel many myths, especially for the public: the over-prizing of honeybees relative to other bees, the emphases on true bugs or misnomers.

Overall, we learnt so much from our trip and were very thankful! Certain themes were to recur throughout my later nature trips – of which the next that I went to was on the Rail Corridor!

Walk @ Pasir Ris Park

Despite staying in the east, I have never been to the Pasir Ris Park and this was one of the reasons why I have decided to sign up for this walk.

Some of the memorable events and learnings include

  1. Spotting parakeets and their bird nests on the light tower on our way to the park. I was surprised as never have I thought that I would see bird nests being built on light towers. These parakeets were introduced into Singapore, and they have managed to rebuild their nests even after the multiple attempts of having their nests removed.
  2. Learning more about the fish poison tree where the flowers are pollinated by bats. It was used to stun fishes in the past and enables the fishes to be captured while leaving them edible for human consumption.
  3. Learning more about the mangroves which serve as coastal protection (interconnected roots help dissipate forces of storms), carbon storage, and protection for small fishes. Some adaptations for growing in or near the seawater include having roots that do not take up the salt or having leaves that excrete the salt taken up.
Bird nests on the light tower
Fish poison tree
Flowers of the fish poison tree

Overall, the walk has been an insightful one and to end off, I would like to thank our guide, Nasry, for sharing his knowledge with us.

Chestnut Nature Park Walk

I had initially wanted to go for the walk at the Chestnut Nature Park back in early April but was unable to do so in the end, and I was really glad that there were more walks at the nature park thereafter. From the sharing by the guides, I learnt that the Chestnut Nature Park acts as a buffer park, serving as a buffer between the nature reserves and the urban areas, as well as reducing the pressure and stress on the Bukit Timah Nature Reserve, a popular nature reserve with large crowds. In addition, I have learnt that the nature reserve has routes designated for mountain bikers as well.

Some of the memorable events include

  1. Being attacked by ants – I went into the park being fully prepared against the mosquitoes but was attacked by ants instead. Although this was something that I had not expected, I am thankful for this which taught me to be more aware of the surroundings and to be more mindful of where I am stepping, especially in nature parks.
  2. Being able to see the mousedeer which is a nocturnal animal. It was also not shy, and we were able to have a longer and closer look with the binoculars that were being passed around.
  3. Seeing a colugo – it was very well camouflaged to the tree bark in my opinion, and I took some time with the repeated pointing by the guide and my friends to be able to spot it.
Mousedeer that we saw (Photo credit to Frances)
Colugo that we saw (Photo credit to Frances)

Overall, the walk was an enjoyable one and I would say it was worth the 1.5 hours traveling time. A big shoutout to my friends for patiently pointing out what was seen, and to end off, I would like to thank our guides, Frances and Wei Jian for taking their time to share their knowledge with us.

Entomology Walk @ Windsor Nature Park

As someone who is not a fan of insects, this was a walk that I would not have signed up if not for my friends. However, I am glad that I did, and the walk was insightful and eye-opening for me. The guides and facilitator were observant and knowledgeable, spotting and identifying the insects that were small and could have been easily missed out.

Some of the memorable events and learnings include

  1. The insect snacks that the guides kindly shared with the group before the start of the walk. From the reviews given by the rest of the group, they were tasty and not as bad as I thought they would have been.
  2. Learning more about the differences between a butterfly and a moth. During the walk, we came across a butterfly and the guides shared more about how we can differentiate these two. These include their activity (butterflies being active in the day while the moths are active at night) and their antennas (thin and long, with a bulb at the end for butterflies and short feathery for moths).
Butterfly seen during the walk (Photo credit to James)

Overall, the experience was an enriching one, allowing me to be more exposed to the insect world. To end of, I would like to thank the guides from the Entomology Society and Pangolin Films, as well as our facilitator, Anna, for their time and sharing.

Bird flyways, mangrove health and much more @ Sungei Buloh Wetland Reserve

Common fruit bat

A long travel from Botanic Gardens to Sungei Buloh introduced me to one side of Singapore that I had never seen before. It almost felt like I have reached another country. Indeed, at one point on our walk around the wetland reserve we could see Malaysia’s Johor Bahru and I clicked a selfie with Malaysia.

This walk was power packed with witnessing mangroves, crocodiles, snakes, birds and discussing about something I had never thought about- Bird Flyways. They are flight paths used by birds when migrating from one point to another. Our guide took us through this new world of routes followed by birds during migration at a shelter which was designated to provide closer views of birds around a quarry and posters of information about bird species which had been spotted there. The guide shared about the East Asian Australasian flyway which stretches from the Arctic in the north to Australia and New Zealand in the south. As development of areas is increasing, the transit sand stops for the migratory birds are also reducing in number. I was curious to know that as these birds are migratory, which country takes responsibility for catering to their needs when one might arise. I was happy to learn that they belong to all the countries in their route and everyone shares the responsibility together making me wonder as to why many countries fail to cooperate on other fronts. The guide also shared about a practice called as bird ringing or bird banding wherein a green flag is tied to the leg of the bird for identification and tracing along the flyway that it may follow. He also shared the story of a Eurasian Whimbrel who was captured twice in the Sungei Buloh area around two decades apart in 1995 and 2014, suggesting that this is a story of how birds can persist and survive even when ecosystems are getting affected.

Here we saw sunbirds, common redshank, mullets jumping out of the pond for air, egrets and common sandpiper. Hovering over the air were few white bellied sea eagles. On one narrow route we could spot the green tree snake and a pair of water monitors who were trying to mate. At another turn, I saw the biggest water monitor that I have seen in Singapore. We saw at least 5 crocodiles and the most interesting one I saw was tailless!!

We also got to witness how coastal erosion has affected the mangrove ecosystem. The coast has depleted and the black/green marking visible in the roots are signs of earlier coastal levels (as visible in the attached image). We could also see a lot of plastic bottles washing up to the coast and residing among the roots of the mangroves. The guide shared that large scale plastic removal is one of the priorities of the Singapore government with respect to mangrove preservation. We also learnt that mangroves are an important carbon sink called as blue carbon. Now there are manifold reasons for mangrove preservation. They protect against floods, store carbon and provide ecosystem for wildlife. Human life is dependent on these preservation efforts.

This experience has been one in which I have been introduced to very local effects of ecosystem changes due to climate change, interconnected nature of various plant and animal species and how Singapore is committed to deliberately balancing human development with ecosystem conservation. I thank everyone at the Biodiversity Friends Forum and the allied minds behind it for this opportunity.

Birds of Ubin

Sunrise from the ferry to Ubin

The morning started with a beautiful ferry ride from the Changi ferry terminal to Ubin. The wind was amazing and we got to the see the sunrise. This was the first time I went to Ubin and travelled on a ferry to an island from Singapore. Right at the terminal as we stepped on the boardwalk there was a bunch of Asian glossy starlings waiting to greet us on a day which would greet us with many other bird species.

As we started walking, we all happened to glance over a huge tree and saw two hornbills starting off with their morning routine. The ardent bird watchers from the group had brought along their cameras and binoculars so that we could get a good zoomed in magnified look at the birds. Then we reached a small pond where we saw many grey heron. On the sky above us, we saw white bellied sea eagles flying gracefully. One of the students shared that they are the largest avian predator in Singapore. In the same area, there was a fence on which there were many grey heron. When I looked from the binoculars, I saw a black bird sitting gracefully spreading its wings. The others confirmed that it was an oriental darter.

Walking further on our journey, the life sciences students shared that environmental conservation efforts and planting new species of trees and shrubs have actually borne fruit and the number of species of wildlife and the population sizes of the existing species have started to go up. They also shared how plants are intelligent and have a way of communicating with each other. This then introduced me to the broader concept of ecosystem health. This reflects the condition of an ecosystem and can be judged by the species it can harbor. Sinking into the biodiversity of the Ubin island made me realize that ecosystem health can be restored and continuous collaborative efforts are needed to maintain the rich nature that we are embedded in.

Further along the journey we reached the campsite where we saw a plethora of different birds like the bee eater, scarlet back flowerpecker, olive green bulbul, pink neck green pigeon, white rumped sandpiper and the emerald dove. It was a magical experience looking at so many colorful birds all at once in a short span of 3 hours.

There were also some monkeys in one area playing around and jumping from one tree to the next. I clicked good photographs to become a part of nature and feel lucky to have been a part of the group that was blessed to see so many birds of Ubin.

First nature walk @ Bukit Batok Nature Park

The first step on the journey itself was unique for me as I started to feel disconnected from the world of internet while travelling towards the location. My mobile internet was having some issues that day and I had to navigate my way to make it to the Nature Park while relying on people to ask for directions. The feeling was good and I felt present in the moment without the distraction of constant messaging. Uncle Tony was our guide that day and the discussions I had with him helped me a lot. He introduced us not just to the wildlife of the park itself but to the environmentalist movements around it which were responsible for advocating for its conservation. He shared that how the connectivity between the conserved areas was crucial to maintain the gene pool of the plant and animal species.

On our walk, we saw various plant and tree species such as the cinnamon tree, golden leaves of the durian tree where we shared a laugh on how Singapore’s uncles and aunties can quarrel over the durian falling down from the tree, rubber tree, nutmeg, the fishtail palm, etc. I was lucky to see a Colugo glide from one tree to another. We heard the sounds of the owl and heard stories about civet cats. Uncle also showed us the mickey mouse ear leaves of the mango tree, a beloved fruit in India.

Uncle Tony and I also discussed shared interest in astronomy using telescopes wherein mine was focused on appreciating the beauty of celestial objects whereas his was more towards religious aspects of astronomy and culture. We both agreed that in today’s day and age where our minds are constantly in receipt of information, we tend to forget to look around and above at the sky to become cognizant of our existence.

When asked about his experience towards doing work around biodiversity, Uncle Tony shared that policy makers get on board with environmental conservation in urban planning when you pitch incremental changes rather than big bold one shot ones. He said that change is a slow process and educating the young generation about it is pivotal to carry on the good and important work.

We then wrapped up the walk with a selfie in masks and I headed home feeling that my horizons of looking at the world had just broadened in a 3 hour group activity in nature.

Act for Nature: A Rejuvenating Saturday @ East Coast Park

A beach clean-up has always been something I yearn for ever since I came across event postings about it. However, I never had the chance to amidst the hectic school term and work schedule during the holidays. Thankfully, being part of the Biodiversity Friends Forum, I had a greater propensity to indulge in environmental-related pursuits. Thus, I started out by searching on the web for opportunities to partake in beach clean-up activities and realised that I could actually organise my own without being part of an organisation. As such, I called upon my group friends who I usually go on hikes and nature walks with.

Being a coastal island, beaches in Singapore are not limited. We narrowed our options down to East Coast Park as it is one of the most popular beaches in Singapore with high visitorship and especially since it was a weekend, we figured that there may be a higher volume of trash as a result of the higher human traffic hence, we decided it would be wise to select East Coast Park to conduct our beach clean-up.

Upon arrival at the East Coast Park, we were greeted by a bunch of adorable furry dogs in the dog run which is also the biggest dog run in the east that opened in 2020. As we strolled along the coastline, we were amazed by how pristine the shore looked. However, when we finally found a spot to commence our beach clean-up, it was only then we realised how filthy the beach was. With closer inspection of the ground, we could see bits and pieces of trash such as styrofoam that were buried in the sand and many cigarette butts littered across. The styrofoam pieces lying around the ground (probably from takeaway containers brought by beach-goers) alongside the cigarette butts can result in grave implications especially to our marine life when they are washed into the ocean. Styrofoams are made up of polystyrene, which is a brittle material and can break down into small pieces readily, leading to difficulty in clean-ups as we have experienced. They are also often mistaken as food by marine life which is extremely detrimental when ingested since it can lead to starvation or choking. As for cigarette butts, they are known to be the most common type of marine debris that is found and are a toxic waste since most cigarette filters are made out of a plastic-like material that is known as cellulose acetate. The fibres in cigarette filters are not easy to degrade and are akin to the plastics in our oceans where the UV rays break the fibres down into smaller pieces, but they do not completely disintegrate. This gives rise to a critical problem of microplastics, a term that was only introduced in 2004. Microplastics are small pieces of plastics that are less than 5mm in length and the term has recently resurfaced after they were discovered in our blood and even in the food we eat. Such discovery magnifies the issue of land pollution which can subsequently contribute to pollution in the sea. Therefore, the next time you see any rubbish on the beach or anywhere please do pick them up not just to do the environment a favour but yourself as well.

“While beach clean-ups may seem trivial to some, it plays a pivotal role in keeping our coastline safe and clean.”

HX

As we continued our journey across the coarse white sand, we came across a few unconventional pieces of trash such as shampoo bottles, nails or even dirty rags. Apart from polluting the environment, some of these items can pose as hazards to beach-goers and possibly lead to unforeseen circumstances in the event an injury is inflicted. As such, while beach clean-ups may seem trivial to some, it plays a pivotal role in keeping the coastline safe and clean. These findings also speak volumes about the rampant littering that promotes marine pollution hence, further sounding the alarm to the lacking knowledge the public has on the implications of littering as well as the awareness to the severity of such problem, prompting urgency in the resolution of the problem at hand.

Using what I have learnt during my entomology walk, I was able to spot the carcass of what is known as the Anomala albopilosa or the Green Chafer Beetle, which has a stunning green coat that looked exquisite. That was the first time I could closely examine a beetle considering how I am not so much a creepy crawlies fan. As the name suggests, they are herbivorous and mainly feed on plants and are considered destructive sugarcane pests.

“Until we start advocating for a change and taking charge of our own actions, the slogan ‘save the environment’ will never be realised”

HX

Overall, the beach clean-up was a great success. Although the weather was in our favour when we started the clean-up, the scorching afternoon sun was merciless near the end. Coupled with the fact that the majority of the trash were difficult to pick as they were small in size, it was definitely not as easy as it seems. Nevertheless, this experience was a worthwhile one. While I always had the perception that our beaches are relatively clean, it is only on close inspection where I realised the reality of our own actions. “We are our own worst enemy” as quoted by Una Mccormack. Until we start advocating for a change and taking charge of our own actions, the slogan ‘save the environment’ will never be realised.