Some of the most important wildlife in Belihuloya is small enough to overlook.
You may walk beside a stream and notice the mountains, the trees and the sound of flowing water.
But hovering just above the surface could be a dragonfly.
Clinging to vegetation could be a damselfly.
Beneath the water, an entirely different stage of life is unfolding.
These insects are easy to dismiss because of their size, yet dragonflies and damselflies can tell us a great deal about the health and diversity of freshwater environments.
A 2022 study of the odonate fauna of Belihuloya recorded 36 species, including 22 dragonflies and 14 damselflies. Ten of those species were endemic to Sri Lanka, while 12 were nationally threatened. Among them were the critically endangered Elattoneura centralis and the endangered Libellago greeni.
Small Insects, Important Indicators
Dragonflies and damselflies are closely connected to freshwater.
Their life cycles depend on water, and their presence can therefore provide useful information about the condition of aquatic habitats.
This makes them valuable indicator species.
When you begin paying attention to them, a stream stops being simply a beautiful feature of the landscape.
It becomes an ecosystem.
Water quality matters.
Vegetation matters.
The surrounding forest matters.
Even the structure of the habitat matters.
The Belihuloya study found differences in odonate communities between habitat types, with relatively low similarity between them. The researchers described these habitats as complementary for conservation planning. In other words, protecting only one type of habitat would not necessarily protect the full range of species found across the landscape.
That is an important lesson.
Biodiversity is rarely concentrated in one place.
The Hidden World Around Water
Walk beside a stream slowly and the landscape begins to change.
Dragonflies patrol small sections of water. Damselflies rest on vegetation. Other insects move around the banks. Frogs may be hidden among leaves. Aquatic organisms live beneath the surface.
What appears to be a simple stream is actually a complex system supporting many different forms of life.
This is one reason Belihuloya’s waterways are so important.
The area is shaped by water, from small streams and waterfalls to larger bodies such as Samanalawewa.
Water connects habitats.
It creates corridors.
It supports vegetation.
And it provides breeding environments for species that could not survive elsewhere.
Endemic Life Hiding in Plain Sight
One of the most fascinating aspects of the Belihuloya odonate study is the number of endemic species recorded.
Ten of the 36 species identified were endemic to Sri Lanka. Several were also nationally threatened, including Elattoneura centralis, classified as critically endangered, and Libellago greeni, classified as endangered.
These are not species that simply happen to pass through Sri Lanka.
They belong here.
Their entire global distribution is tied to the island.
That makes every suitable habitat important.
A small stream may not look significant on a map, but for a species dependent on that particular ecological environment, it can be essential.
Looking Closer at Belihuloya
This is where naturalist-led experiences can change the way people experience a destination.
At Treehouse Chalets, guests can explore the surrounding environment through naturalist-led bird walks, jungle hikes and the Junior Naturalist Programme. The latter introduces children to local flora, animals and birds while helping them understand the relationships that keep an ecosystem functioning.
That philosophy can extend to the smaller species too.
A dragonfly becomes more interesting when you understand why it is there.
A stream becomes more valuable when you realise what depends on it.
A patch of vegetation becomes something worth protecting when you understand the species it supports.
Nature interpretation does not necessarily make the landscape more complicated. It makes it more meaningful. Wildlife tourism often focuses on large and charismatic animals.
Elephants, Leopards, Deer and Birds of prey.
But ecosystems are held together by countless smaller organisms that rarely make it into photographs. Dragonflies and damselflies are part of that hidden layer. They are small, but their presence can reveal something much bigger about the landscape.
Belihuloya’s odonate diversity is therefore more than an interesting scientific statistic.
It is another piece of evidence showing that the area contains a complex network of habitats worth understanding and protecting. The next time you walk beside a stream in Belihuloya, look down.
Then look closely.
There may be an entire freshwater world moving around you.