Features
When the Waters Rise: Floods, Fear and the ancient survivors of Sri Lanka
The water came quietly at first, a steady rise along the riverbanks, familiar to communities who have lived beside Sri Lanka’s great waterways for generations. But within hours, these same rivers had swollen into raging, unpredictable forces. The Kelani Ganga overflowed. The Nilwala broke its margins. The Bentara, Kalu, and Mahaweli formed churning, chocolate-brown channels cutting through thousands of homes.
When the floods finally began to recede, villagers emerged to assess the damage, only to be confronted by another challenge: crocodiles. From Panadura’s back lanes to the suburbs of Colombo, and from the lagoons around Kalutara to the paddy fields of the dry zone, reports poured in of crocodiles resting on bunds, climbing over fences, or drifting silently into garden wells.
For many, these encounters were terrifying. But to Sri Lanka’s top herpetologists, the message was clear: this is what happens when climate extremes collide with shrinking habitats.
“Crocodiles are not invading us … we are invading floodplains”
Sri Lanka’s foremost crocodile expert, Dr. Anslem de Silva, Regional Chairman for South Asia and Iran of the IUCN/SSC Crocodile Specialist Group, has been studying crocodiles for over half a century. His warning is blunt.
“When rivers turn into violent torrents, crocodiles simply seek safety,” he says. “They avoid fast-moving water the same way humans do. During floods, they climb onto land or move into calm backwaters. People must understand this behaviour is natural, not aggressive.”
In the past week alone, Saltwater crocodiles have been sighted entering the Wellawatte Canal, drifting into the Panadura estuary, and appearing unexpectedly along Bolgoda Lake.
“Saltwater crocodiles often get washed out to sea during big floods,” Dr. de Silva explains. “Once the current weakens, they re-enter through the nearest lagoon or canal system. With rapid urbanisation along these waterways, these interactions are now far more visible.”
- An adult Salt Water Crocodile (Crocodylus porosus) (Photo -Madura de Silva)
- Adult Mugger (Crocodylus plaustris) Photo -Laxhman Nadaraja
- A Warning sign board
- A Mugger holding a a large Russell ’s viper (Photo- R. M. Gunasinghe)
- Anslem de Silva
- Suranjan Karunarathna
This clash between wildlife instinct and human expansion forms the backdrop of a crisis now unfolding across the island.
A conflict centuries old—now reshaped by climate change
Sri Lanka’s relationship with crocodiles is older than most of its kingdoms. The Cūḷavaṃsa describes armies halted by “flesh-eating crocodiles.” Ancient medical texts explain crocodile bite treatments. Fishermen and farmers around the Nilwala, Walawe, Maduganga, Batticaloa Lagoon, and Kalu Ganga have long accepted kimbula as part of their environment.
But the modern conflict has intensified dramatically.
A comprehensive countrywide survey by Dr. de Silva recorded 150 human–crocodile attacks, with 50 fatal, between 2008 and 2010. Over 52 percent occurred when people were bathing, and 83 percent of victims were men engaged in routine activities—washing, fishing, or walking along shallow margins.
Researchers consistently emphasise: most attacks happen not because crocodiles are unpredictable, but because humans underestimate them.
Yet this year’s flooding has magnified risks in new ways.
“Floods change everything” — Dr. Nimal D. Rathnayake
Herpetologist Dr. Nimal Rathnayake says the recent deluge cannot be understood in isolation.
“Floodwaters temporarily expand the crocodile’s world,” he says. “Areas people consider safe—paddy boundaries, footpaths, canal edges, abandoned land—suddenly become waterways.”
Once the water retreats, displaced crocodiles may end up in surprising places.
“We’ve documented crocodiles stranded in garden wells, drainage channels, unused culverts and even construction pits. These are not animals trying to attack. They are animals trying to survive.”
According to him, the real crisis is not the crocodile—it is the loss of wetlands, the destruction of natural river buffers, and the pollution of river systems.
“When you fill a marsh, block a canal, or replace vegetation with concrete, you force wildlife into narrower corridors. During floods, these become conflict hotspots.”
Past research by the Crocodile Specialist Group shows that more than 300 crocodiles have been killed in retaliation or for meat over the past decade. Such killings spike after major floods, when fear and misunderstanding are highest.
“Not monsters—ecosystem engineers” — Suranjan Karunaratne
On social media, flood-displaced crocodiles often go viral as “rogue beasts.” But conservationist Suranjan Karunaratne, also of the IUCN/SSC Crocodile Specialist Group, says such narratives are misleading.
“Crocodiles are apex predators shaped by millions of years of evolution,” he says. “They are shy, intelligent animals. The problem is predictable human behaviour.”
In countless attack investigations, Karunaratne and colleagues found a repeated pattern: the Three Sames—the same place, the same time, the same activity.
“People use the same bathing spot every single day. Crocodiles watch, learn, and plan. They hunt with extraordinary patience. When an attack occurs, it’s rarely random. It is the culmination of observation.”
He stresses that crocodiles are indispensable to healthy wetlands. They: control destructive catfish populations, recycle nutrients, clean carcasses and diseased fish, maintain biodiversity, create drought refuges through burrows used by amphibians and reptiles.
“Removing crocodiles destroys an entire chain of ecological services. They are not expendable.”
Karunaratne notes that after the civil conflict, Mugger populations in the north rebounded—proof that crocodiles recover when given space, solitude, and habitat.
Floods expose a neglected truth: CEEs save lives—if maintained In high-risk communities, Crocodile Exclusion Enclosures (CEEs) are often the only physical barrier between people and crocodiles. Built along riverbanks or tanks, these enclosures allow families to bathe, wash, and collect water safely.
Yet Dr. de Silva recounts a tragic incident along the Nilwala River where a girl was killed inside a poorly maintained enclosure. A rusted iron panel had created a hole just large enough for a crocodile to enter.
“CEEs are a life-saving intervention,” he says. “But they must be maintained. A neglected enclosure is worse than none at all.”
Despite their proven effectiveness, many CEEs remain abandoned, broken or unused.
Climate change is reshaping crocodile behaviour—and ours
Sri Lanka’s floods are no longer “cycles” as described in folklore. They are increasingly intense, unpredictable and climate-driven. The warming atmosphere delivers heavier rainfall in short bursts. Deforested hillsides and filled wetlands cannot absorb it.
Rivers swell rapidly and empty violently.
Crocodiles respond as they have always done: by moving to calmer water, by climbing onto land, by using drainage channels, by shifting between lagoons and canals, by following the shape of the water.
But human expansion has filled, blocked, or polluted these escape routes.
What once were crocodile flood refuges—marshes, mangroves, oxbow wetlands and abandoned river channels—are now housing schemes, fisheries, roads, and dumpsites.
Garbage, sand mining and invasive species worsen the crisis
The research contained in the uploaded reports paints a grim but accurate picture. Crocodiles are increasingly seen around garbage dumps, where invasive plants and waste accumulate. Polluted water attracts fish, which in turn draw crocodiles.
Excessive sand mining in river mouths and salinity intrusion expose crocodile nesting habitats. In some areas, agricultural chemicals contaminate wetlands beyond their natural capacity to recover.
In Borupana Ela, a short study found 29 Saltwater crocodiles killed in fishing gear within just 37 days.
Such numbers suggest a structural crisis—not a series of accidents.
Unplanned translocations: a dangerous human mistake
For years, local authorities attempted to reduce conflict by capturing crocodiles and releasing them elsewhere. Experts say this was misguided.
“Most Saltwater crocodiles have homing instincts,” explains Karunaratne. “Australian studies show many return to their original site—even if released dozens of kilometres away.”
Over the past decade, at least 26 Saltwater crocodiles have been released into inland freshwater bodies—home to the Mugger crocodile. This disrupts natural distribution, increases competition, and creates new conflict zones.
Living with crocodiles: a national strategy long overdue
All three experts—Dr. de Silva, Dr. Rathnayake and Karunaratne—agree that Sri Lanka urgently needs a coordinated, national-level mitigation plan.
* Protect natural buffers
Replant mangroves, restore riverine forests, enforce river margin laws.
* Maintain CEEs
They must be inspected, repaired and used regularly.
* Public education
Villagers should learn crocodile behaviour just as they learn about monsoons and tides.
* End harmful translocations
Let crocodiles remain in their natural ranges.
* Improve waste management
Dumps attract crocodiles and invasive species.
* Incentivise community monitoring
Trained local volunteers can track sightings and alert authorities early.
* Integrate crocodile safety into disaster management
Flood briefings should include alerts on reptile movement.
“The floods will come again. Our response must change.”
As the island cleans up and rebuilds, the deeper lesson lies beneath the brown floodwaters. Crocodiles are not new to Sri Lanka—but the conditions we are creating are.
Rivers once buffered by mangroves now rush through concrete channels. Tanks once supporting Mugger populations are choked with invasive plants. Wetlands once absorbing floodwaters are now levelled for construction.
Crocodiles move because the water moves. And the water moves differently today.
Dr. Rathnayake puts it simply:”We cannot treat every flooded crocodile as a threat to be eliminated. These animals are displaced, stressed, and trying to survive.”
Dr. de Silva adds:”Saving humans and saving crocodiles are not competing goals. Both depend on understanding behaviour—ours and theirs.”
And in a closing reflection, Suranjan Karunaratne says:”Crocodiles have survived 250 million years, outliving dinosaurs. Whether they survive the next 50 years in Sri Lanka depends entirely on us.”
For now, as the waters recede and the scars of the floods remain, Sri Lanka faces a choice: coexist with the ancient guardians of its waterways, or push them into extinction through fear, misunderstanding and neglect.
By Ifham Nizam
Features
‘Lord Edgware Dies’
It has been some time since I read an Agatha Christie, the plot of which I cannot remember. So, I was delighted to find on the shelves of a friend Lord Edgware Dies, which I had a vague memory of, but no certainty about who had done it.
When I read it, I found that my memory of who was probably the killer was correct, but I could not be certain and the red herrings Christie threw in were so diverting that until almost the very end I wondered if I had been wrong.
The plot is very simple. Jane Wilkinson, who is married to Lord Edgware, tells him that she is desperate for a divorce since she is in love with a very proper Anglo-Catholic peer, Lord Melton, but Edgware refuses to divorce her. She asks Poirot to talk to him, which he does, and is surprised to find that Edgware has told Jane he is prepared to give her a divorce. This was, after he had categorically refused, through a letter, which Jane said she had not received.
That night Edgware is murdered, after Jane had been to see him, or so the butler said, and also Edgware’s secretary. But Jane had been that evening at a grand dinner many miles away, where a dozen fellow guests could swear to her presence.
There was a solution however to the mystery of two Jane Wilkinsons, namely a skilful impersonator called Carlotta Adams who, in the opening chapter had impersonated Jane Wilkinson, who had also been at the performance. But when Poirot goes to see her, he finds that she had been found dead on the morning after Edgware had been killed, of an overdose. And in her bag was a gold case, with a strange inscription, that contained the drug, along with a pair of pince-nez.
Her maid said she had written a letter to her sister in America and posted it the previous night. Poirot asks Inspector Japp to get the letter, and a transcript is received from America, and in it the name of Edgware’s nephew Ronald Marsh is mentioned; he had taken Carlotta to dinner after her performance, with which the book opens, and had then set her a challenge. Japp arrests Marsh, but Poirot is not happy and asks for the original of the letter, which the sister sends him. That shows that a page is missing, and the tear is obvious, though that raises the question as to why it had not simply been cut.
Matters are further complicated by the fact that Marsh had gone in a taxi to the Edgware house, along with Edgware’s daughter Geraldine, in the interval of an opera which had previously seemed to provide them with cast iron alibis. Geraldine had gone in to fetch her pearls so that Marsh could raise money he needed, and thus had an opportunity to kill Edgware, as did Marsh, for the driver said he had got out of the taxi while waiting and gone into the house.
Marsh explained why he had gone to the house on the night of the murder as having followed Bryan Martin, an American actor, who had been in love with Jane, whom he saw go into the house with a key. But there was no one visible when he entered, and Geraldine almost immediately came down and they left together. And Martin too has become an object of suspicion to Poirot, for he had been to see him before the murders were discovered with a story of being followed by a man with a gold tooth – a story Poirot immediately realized was false when he was asked how old the man was, and was told he was young, for young people did not have gold teeth.
A heap of French money Edgware had got for a trip to Paris was missing, but since Marsh had no need for it after his cousin’s offer of help, Poirot deduces that it must have been taken by the butler, who has disappeared. Christie has stressed that he is astonishingly handsome, unusual in a butler, and Poirot notes a resemblance to Martin, so he thinks the mysterious man going into the house must have been him.
Incidentally, later Poirot assumes that Edgware’s change of mind was because he was involved in some scandal, and I believe Christie intends us to see the cause of this in his handsome butler, though this is not specified.
Meanwhile, Poirot has asked Japp to find out the provenance of the case found in Carlotta’s handbag, and it turns out to have been made in Paris, specially commissioned, and collected by a woman with pince-nez.
But then another murder occurs—that of another guest at the grand dinner, which provided Jane with her alibi. The victim is an actor who had been bemused when Jane, at a lunch, thought the Judgment of Paris referred to the city. He told Hastings he wanted to see Poirot, but was killed before he could get to the appointment. Poirot had rushed there when told about his request, but it was too late.
Meanwhile, Poirot has tried out the pince-nez on Edgware’s secretary, but she could not see through these. It was only a chance remark heard outside the theatre that led him to try them out on Wilkinson’s maid Ellis, a spare pair that had been appropriated for the night of the murders.
Poirot then lays things out, having summoned Martin and told him that he probably suppressed Edgware’s letter, as he had been dropped by then and he did not want Jane to marry another. But after teasing Martin, Poirot says that Jane was in fact the murderer, and she got Carlotta to impersonate her at the dinner while she went to the house and killed her husband. After meeting Carlotta later and checking with her through a call that she had
not been rumbled, Jane had gone ahead with the murder – she put veronal into her drink and the case with veronal into the handbag. She forgot to take out the pince-nez she had used earlier to imitate an American. Carlotta had registered as the American in a hotel and Jane had gone to see her, and there they exchanged identities. After seen the letter, she made use of it by tearing off the page that referred to her, and the S of She, so that the person who had challenged Carlotta to impersonate her seemed to be a man.
There is a coda in which Jane, condemned to death, writes to Hastings, still full of pride at her ingenuity hoping she will be remembered.
Features
Desilt reservoirs, learn from our ancient irrigation systems
by Prof. O. A. Ileperuma
Silting of reservoirs is a major problem today affecting our hydropower production and irrigation systems. The main Mahaweli reservoirs are silted to a considerable extent reducing the water holding capacity of them. Due to poor soil management practices, floodwaters deposit large amounts of silt in these reservoirs. When the Polgolla reservoir was fully drained about two years back, one could see mountains of silt in the lower reaches of the reservoir. A rough estimate is that 50% of the total capacity of these reservoirs has been lost to siltation. This is a serious issue which affects not only power and agriculture but also flood control.
Our ancient irrigation systems ensured that desilting of reservoirs took place under royal decree where all users of the reservoirs were ordered to carry out desilting of reservoirs during the dry season. The clay thus collected was used in making bricks for the construction of great stupas which dot the landscape of our ancient kingdoms. This ensured that the reservoirs had their full capacity filled with water for the next cultivating season. Our ancient kings were clever enough not to construct reservoirs by blocking main rivers such as the Mahaweli. A classic example is the Minipe left canal where they tapped only the surface water of Mahaweli. Even the bigger tanks such as Nuwara Wewa and Parakrama Samudraya were fed with minor rivulets. There were also other ingenious features in the cascade irrigation systems built by the ancient kings, such as mud sluice canals and forest reservations between the reservoirs in the cascade system. These reservations helped trap silt and remove excess nutrients, which could otherwise contribute to increasing salinity as water flowed from one reservoir to another.
- Parakrama Samudraya
- Kalawewa
- Kotmale
A classic engineering marvel is the former Yoda Ela, which carries water from Kalawewa to Nuwara Wewa and Tissa Wewa. It is 87 km long although the straight distance between these points is only about 40 km. The gradient of this canal is about 10 cm per km or 6 inches per mile. Yodha Ela functions as a moving reservoir and feeds about 4,600 hectares of paddy lands. It is a winding canal with about 120 smaller reservoirs on its way. It was constructed during the reign of King Dhatusena around 459 AD and later expanded by King Parakramabahu by connecting more reservoirs to the network. Unfortunately, during the Mahaweli project our modern-day engineers constructed a concrete canal replacing the winding path of this Yoda Ela also called Jaya Ganga. This effectively removed the ability of the old Yoda Ela to remove silt and nutrients. The bank of this Ela has wet zone trees such as jak and areca nut growing well. They take up the nutrients from the flowing stream making the water suitable for irrigation later.
Ancient Mesopotamian civilisations depended on dams constructed along the two main rivers, Euphrates and Tigris. After continuous irrigation of their fields over several thousand years, salinity of the irrigated lands increased making them unsuitable for agriculture. People died due to famine and this clearly illustrates the danger of blocking main rivers for agriculture. There is scientific evidence that the salinity of paddy soils in the Mahaweli C area is increasing.
We saw the devastation caused by Cyclone Ditwah. The sluice gates of the Kotmale Reservoir were opened, and Kandy and Peradeniya were flooded. If the reservoir had had greater storage capacity, couldn’t the opening of the gates have been delayed? This may not be an argument that modern-day engineers would readily accept, and I am not an irrigation expert. These ideas may well be naïve. But most of us tend to think of reservoirs mainly in terms of hydropower generation and irrigation, while their role in flood control receives much less attention. The question therefore deserves serious consideration. Could restoring lost reservoir capacity through desilting help improve our ability to manage extreme rainfall and reduce flood risks?
Desilting our reservoirs should be considered a national priority.
Features
Losing out to Ethiopia
Export diversification – Missing the wood for the trees – Part III
by Gomi Senadhira
In Sri Lanka, the word “Ethiopia” is often used as disparaging slang to describe individuals or areas experiencing extreme poverty, starvation, or severe economic hardship. This linguistic habit originated in the 1980s with the Western media coverage of the devastating Ethiopian famine of 1983-85. That media coverage shocked the world but also left an outdated and offensive global stereotype that the country is permanently starving. Much has changed since then. By now, with an annual growth rate of around 9%, it is the fastest-growing economy in sub-Saharan Africa. Ethiopia has also emerged as a highly competitive exporter and is challenging not only its competitors in the region but also countries like Sri Lanka. This article is on how Sri Lanka has lost ground to Ethiopia (and a few other countries) in the GCC markets for agricultural and floricultural products.
Sri Lanka – A Pioneer in the Agriculture and Floricultural Market in the GCC
As discussed in Part II of this article, by the mid-1980s Sri Lanka had established a strong foothold in the GCC’s fruit, vegetable, and floricultural market. Geographical proximity and well-established shipping and air links gave Sri Lanka a strong comparative advantage over Southeast Asian and African nations. Thailand, Vietnam, and Kenya were not even in the market. At that time, Ethiopia was experiencing (as BBC news reports described) “a biblical famine”.
The market was not very large, but it was lucrative and growing. Trade Minister Lalith Athulathmudali as well as the Chairman of the Export Development Board, Victor Santiapillai, who visited Kuwait (and the GCC countries), recognised the market potential for these products and encouraged us to continue with our work. The minister was particularly keen to further develop links between the market for these products, exporters, and his Export Production Villages (EPVs). So, it was becoming a successful case not only for export diversification but also for transferring gains from exports directly to rural households.
From Trailblazer to Tailender
As a result, even by the beginning of this century Sri Lanka had a larger market share than most of its competitors from Asia or Africa. But since then, our competitiveness has weakened significantly. The tables below provide a comparative snapshot of Sri Lanka’s performance vis-à-vis Thailand, Vietnam, Kenya and Ethiopia in the GCC market for vegetables, fruits and floricultural products. As illustrated therein, in 2001 Sri Lanka was ahead of Thailand, Kenya and Ethiopia in this small but rapidly growing market. Since then, we have fallen behind Thailand, Kenya and many other countries in that lucrative market. If this trend continues, Sri Lanka will fall behind Ethiopia within the next few years. (See Table 1)
In the GCC market for vegetables (covered in HS chapter 07), Sri Lanka was ahead of most other competitors in 2001. As illustrated in Table 1 , Sri Lanka had failed to develop this market, while Thailand, Kenya, and even Ethiopia had very efficiently increased their market shares. The GCC is a market to which Sri Lanka can supply some vegetables, like cabbages, by sea. It appears Sri Lanka had also failed to exploit this mode of supply.
We can see a similar trend in the market for fruits. Vietnam, Kenya, and Thailand have emerged as major players, while exports from Sri Lanka have staggered on slowly. In this segment, Vietnam has emerged as a leading player during the last twenty years and the GCC imports from Viet Nam have shot up from US$44 thousand in 2001 to US$346 million by 2024. In part one of these articles, I discussed the remarkable increase of jackfruit exports from Vietnam “…just $3 million in 2015 to an impressive $236.8 million in 2023” while most of our jackfruit production rots under the trees. This explains how countries develop their markets, geographically and product-wise. (See Table 2)
Sri Lanka’s performance has been weakest in the market for floricultural products (HS Chapter 06), which groups live trees, cut flowers, and ornamental foliage. When we first entered the market in the 1980s, the market was dominated by the Netherlands, and Kenya and Ethiopia were not even in the market. At that time, we identified the Gulf states as a market where Sri Lanka could have a dominant presence due to geographical proximity. Even in 2001, Sri Lanka was ahead of Kenya, Ethiopia, and Thailand. But by now, Kenya has emerged as the dominant supplier. Ethiopia is also expanding its market share and is the third-largest exporter. (See Table 3)
Missing the Wood for the Trees
In the mid-1980s, Sri Lanka first established its foothold in the GCC market. Since then, Thailand, Vietnam, Kenya, and even Ethiopia have moved well ahead of us and have become leading players. Why did we lag behind in our export diversification efforts in general and, more particularly, in the GCC market?
The reasons are very clear. After the initial attempts in the 1980s and early 1990s, Sri Lanka has not been proactively involved in identifying, developing, and promoting new products and markets, or protecting and further developing new markets already established. The focus has simply been on traditional exports: tea, coconut, cinnamon, and garments, while other products were almost ignored. In essence, we have been and continue to focus intensely on a narrow group of products and markets, and we have lost sight of the bigger picture.
(The writer can be reached at senadhiragomi@gmail.com)
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