Features
An incredible biogeographical journey
By Ifham Nizam
‘The Ecology and Biogeography of Sri Lanka: A Context for Freshwater Fishes’
by Dr. Rohan Pethiyagoda and Hiranya Sudasinghe is a guide to the origins of Sri Lanka’s fauna and flora that strings together different fields of research to shed light on Sri Lanka’s remarkable biodiversity, with a history of over 100 million years.
The book provides a comprehensive context for the island’s plants and animals with a special focus on the ecology and biogeography of freshwater fishes. It contains more than 200 diagrams, photographs and maps including underwater photographs of freshwater fishes, perhaps photographed for the first time in their natural habitat.
It is a source book intended for scientists, students and biodiversity enthusiasts and would help to understand and appreciate the historical and evolutionary context of Sri Lanka’s unique biodiversity.
Although the island’s unique and spectacular biodiversity is celebrated, one rarely stops to think how this incredible diversity arose in Sri Lanka. Remarkably, few scientists seem to have pondered this question. Such studies as there have been, are limited in scope and are scattered across scientific literature.

It was perhaps only a matter of time before Rohan Pethiyagoda, whose name is synonymous with biodiversity exploration in Sri Lanka, lent his mind to this question. Aiding him is Hiranya Sudasinghe, a young biologist who graduated from the University of Peradeniya, presently reading for his PhD in the University of Bern, Switzerland. Together, these authors have put together a definitive text in the form of a richly-illustrated book of some 270 pages. In it, they provide a compelling and comprehensive account of Sri Lanka’s ecology and biogeography.
Few Sri Lankans are aware that our island began its biotic history as a part of the ancient supercontinent of Gondwana, 120 million years ago. Sri Lanka, India and Madagascar broke away from Antarctica and began drifting northwards. The ‘Indian Bloc’ kept on drifting northward until it collided with Asia around 55 million years ago. That gave rise to the Himalayas and the monsoonal weather pattern that still characterises our climate.
Sri Lanka lies within the rainy Intertropical Convergence Zone, and its Southwest quadrant, which we know as the wet zone, has remained perhumid (a wettest type of climate) for about past 30 million years. This means that this region not only receives high rainfall, but also has no dry season. The authors show that this is what facilitated Sri Lanka’s amazing biodiversity: The wet zone is the only perhumid region between Equatorial Africa and Southeast Asia. Its mixed-dipterocarp rainforests contain some of the richest biodiversity on Earth.
As a result, Sri Lanka has ancient evolutionary lineages of animals with Gondwanan origins, such as the familiar spiders, beetles, scorpions, blind snakes and land-snails. The authors illustrate many of these with more than 200 stunning colour photographs. No less remarkable are the plants. They show that dozens of genera of plants that are found in Sri Lanka are wholly absent from India but occur further afield, in Madagascar, the Seychelles, Borneo and even New Guinea. How did this happen? Each case tells a particular story, helping to piece together a puzzle of intricate complexity.
Using tools of molecular biology, Pethiyagoda and Sudasinghe reconstructed the history of their favourite group of fauna: Freshwater fishes. Compared with the Western Ghats of India, Sri Lanka’s freshwater-fish is poor indeed. But the authors use this ‘poverty’ as an opportunity to explore why this is the case. Using DNA-based tools, they reconstruct the ‘molecular phylogeography’ of the fishes, showing how they dispersed through the island. Despite the somewhat technical nature of this particular chapter, it yields some fascinating results which identify, for example, which river basins served as drought refuges during periods of aridification. They show that despite the island’s incredible biotic wealth, it suffered major climate-driven extinctions that decimated its fauna and flora.
The first of these probably took place 65 million years ago, when the impact of a meteor with Earth caused the Cretaceous-Paleogene mass extinction. It was that event that led to the extinction of dinosaurs and resulted in the rise of mammals, including ourselves. By the time of India-Asia contact 55 million years ago, the authors show, very little was left standing in Sri Lanka except for those resilient Gondwanan lineages, such as spiders, snails and possibly a single lineage of frogs that somehow managed to survive. And then, a flood of Asian species swept into Northeastern India and down the peninsula into Sri Lanka. But wait! They couldn’t enter Sri Lanka until sea levels were low enough to give rise to a land bridge between India and Sri Lanka in the vicinity of Adam’s Bridge.
With detailed graphs that reconstruct sea levels over the past several million years, the authors show that Sri Lanka was frequently, if intermittently, connected to India during this time, leading to both immigration and emigration of plant and animal lineages, such as fish, freshwater crabs, amphibians and scorpions. The island’s biotic story then, is one of species evolving prolifically between periodic extinctions. The last of these extinctions occurred only quite recently, probably around 20,000 years ago. Many large mammals, including two species of elephant, two species of rhinoceros, a species of hippopotamus, the tiger, the lion and much else suddenly disappeared. The arrival in Sri Lanka of the charismatic dry-adapted large mammals we cherish today, such as the leopard and sloth bear, was very recent indeed.
Pethiyagoda and Sudasinghe’s ‘Ecology and Biogeography of Sri Lanka’ is nothing short of a masterpiece. It is not just ‘the’ science book of 2021, it ranks among the best science books ever to come out of Sri Lanka, able to stand proudly beside, for example, Professor P. G. Cooray’s ‘Introduction to the Geology of Sri Lanka’ (1984). This is a book that every Sri Lankan nature lover should read in order to understand the context of our island’s biodiversity and just how fragile it is. It is a monumental piece of unadulterated scholarship.
Features
Illegal solar push ravages Hambantota elephant habitat: Environmentalist warns of deepening crisis
A large-scale move to establish solar power plants in Hambantota has triggered a major environmental and social crisis, with more than 1,000 acres of forest—identified as critical elephant habitat—cleared in violation of the law, environmental activist Sajeewa Chamikara said.
Chamikara, speaking on behalf of the Movement for Land and Agricultural Reform, said that 17 companies have already begun clearing forest land along the boundaries of the Hambantota Elephant Management Reserve. The affected areas include Sanakku Gala, Orukemgala and Kapapu Wewa, which are known to be key elephant habitats and long-used movement corridors.
He said that what is taking place cannot be described as development, but rather as a large-scale destruction of natural ecosystems carried out under the cover of renewable energy expansion.
According to Chamikara, the clearing of forests has been carried out using heavy machinery, while large sections have also been deliberately set on fire to prepare the land for solar installations. He said that electric fences have been erected across wide stretches of land, effectively blocking elephant movement and fragmenting their natural habitat.

“These forests are not empty lands. They are part of a living system that supports wildlife and nearby communities. Once destroyed, they cannot be easily restored,” he said.
The projects in question include a 50 megawatt solar development undertaken by five companies and a larger 150 megawatt project implemented by 12 companies. The larger project is reported to be valued at around 150 million US dollars.
Chamikara stressed that these projects are being carried out in a coordinated manner and involve extensive land clearing on a scale that raises serious environmental concerns.
He further alleged that certain companies had paid about Rs. 14 million to secure support and move ahead with the projects. He said this points to a troubling failure of oversight by state institutions that are expected to protect forests and wildlife habitats.
“This is not only an environmental issue. It is also a serious governance issue. The institutions responsible for protecting these lands have failed in their duty,” he said.
Chamikara pointed out that under the National Environmental Act, any project of this scale must receive prior approval through a proper Environmental Impact Assessment process.
He said that clearing forest land before obtaining such approval is a direct violation of the law.
He added that legal requirements relating to archaeological assessments had also been ignored. Under existing regulations, large-scale land clearing requires prior evaluation to ensure that sites of historical or cultural value are not damaged.

“The law is very clear. You cannot go ahead with projects of this nature without proper approval. What we are seeing is a complete disregard for legal procedure,” Chamikara said.
The environmental impact of these activities is already becoming visible. With their natural habitats destroyed, elephants are increasingly moving into nearby villages in search of food and shelter. This has led to a sharp rise in human-elephant conflict in several areas.
Areas such as Mayurapura, Gonnooruwa, Meegahajandura and Thanamalvila have reported increasing encounters between humans and elephants. According to Chamikara, more than 5,000 farming families in these areas are now facing growing threats to their safety and livelihoods.
He warned that farmers are being forced to abandon their lands due to repeated elephant intrusions, while incidents involving damage to crops and property are rising. There have also been increasing reports of injuries and deaths among both humans and elephants.
“This is turning into a serious social and economic problem. When farmers cannot cultivate their lands, it affects food production, income and rural stability,” he said.
Chamikara also raised concerns about the broader environmental consequences of clearing forests for solar power projects. While renewable energy is promoted as a solution to reduce carbon emissions, he said that destroying forests undermines that goal.
“Forests play a key role in absorbing carbon dioxide. When you clear and burn them, you are increasing emissions, not reducing them. That defeats the purpose of promoting solar energy,” he explained.
He added that large-scale deforestation in dry zone areas such as Hambantota could also affect local weather patterns and reduce rainfall, which would have further negative impacts on agriculture and water resources.

Chamikara called for a shift in policy, urging authorities to focus on more sustainable approaches to solar power development. He said that rooftop solar systems on homes, public buildings and commercial establishments should be given priority, as they do not require clearing large areas of land.
He also recommended that solar projects be located on degraded or abandoned lands, such as areas affected by past mining or other low-value lands, rather than forests or productive agricultural areas.
“Renewable energy development must be done in a way that does not destroy the environment. There are better options available if there is proper planning,” he said.
Chamikara urged the Central Environmental Authority and the Department of Wildlife Conservation to take immediate action to stop ongoing land clearing and investigate the projects. He stressed that all activities carried out without proper approval should be halted until legal requirements are met.
He warned that failure to act now would lead to long-term environmental damage that could not be reversed.
“If this continues, we will lose not only forests and wildlife, but also the balance between people and nature that supports rural life. The consequences will be felt for generations,” he said.
The situation in Hambantota is fast emerging as a critical test of whether development goals can be balanced with environmental protection. As pressure grows, the response of authorities in the coming weeks is likely to determine whether the damage can still be contained or whether it will continue to spread unchecked.

By Ifham Nizam
Features
Why Mahatma Gandhi’s teachings need to be at the heart of conflict resolution
All credit to the Tamil Nadu government for taking concrete measures to perpetuate the memory of the renowned Mahatma Gandhi of India, who on account of his moral teachings stands on par with the likes of Socrates, Plato, Aristotle, Confucius and Jalaluddin Rumi, to name a few such all-time greats. The time is indeed ripe to draw the world’s attention to the Mahatma’s humanistic legacy which has resonated in the hearts of peace-oriented sections the world over down the decades.
Under its mega developmental blueprint titled ‘ Tamil Nadu 2030’, the Tamil Nadu government, among other things, intends transforming villages into centres of economic growth in conformity with the Mahatma’s vision of making the village the fundamental unit of material and spiritual advancement. Thus will come into being the ‘Uttamar Gandhi Model Villages Project’, which will be initially covering 10 village Panchayats. (Please see page 3 of The Island of March 11, 2026).
The timeliness of remembering and appreciating anew the teachings of Mahatma Gandhi resides in the utter lawlessness that has been allowed to overtake the world over the last few decades by none other than those global powers which took it upon themselves to usher in a world political and economic order based on the UN Charter and the Universal Declaration of Human Rights. Mainly in ‘the dock’ in this regard are the permanent members of the UN Security Council.
As is plain to see, the international law and order situation has veered out of control. Principal priorities for the international community or what’s left of it is to prevent the current mainly regional war in the Middle East from degenerating dangerously into another world war, coupled with the task of eliminating the possibility of another nuclear holocaust.
The most scorching of ironies is that the world’s ‘number one power’, the US, has virtually lost its way in the ‘Global Disorder’ it has been party to letting lose. For instance, instead of making good its boast of militarily neutralizing Iran and paving the way for the constant flow of fuel and gas from the Strait of Hormus by itself and Israel, it is now appealing to the rest of the West to come to its assistance. Not surprisingly, US allies are indicating their unwillingness to help pull the US’ ‘chestnuts out of the fire’.
Oil and gas are the veritable life blood of countries and going ahead it should not come as a surprise if impatience gets the better of the major powers and the nuclear option is resorted to by some of them under the dangerous illusion that it would be a quick-fix to their growing economic ills and frustrations.
All the above and more are within the realms of the possible and the need is pressing for humanistic voices to take centre stage in the present runaway crisis. As pointed out in this column last week, Realpolitik has overtaken the world and unless the latter is convinced of the self-destructive nature of the major powers’ policy of ‘meeting fire with fire’ to resolve their disputes, annihilation could be the lot of a good part of the world.
For far too long the voice of humanity has been muted and silenced in the affairs of world by the incendiary threats and counter-threats of the big powers and their allies. No quarter has been bold enough in these blood pressure-hiking slanging matches to speak of the need for brotherly love and compassion among nations and countries. But it’s the language of love and understanding that is the most pressing need currently and the Mahatma in his time did just that against mighty odds.
At present the US and Iran are trading threats and accusations over military-related developments in the Gulf and it’s anybody’s guess as to what turn these events will take. However, calming voices of humanity and moderation would help in deescalating tensions and such voices need to go to the assistance of the UN chief and his team.
The Mahatma used the technique of ‘Satyagraha’ or the policy of non-violent resistance to oppose and dis-empower to a degree the British empire in his time and the current major powers would do well to take a leaf from Gandhi. The latter also integrated into the strategy of non-violent resistance the policy of ‘Ahimsa’ or love and understanding which helped greatly in uniting rather than alienating adversaries. The language of love, it has been proved, speaks to the hearts and minds of people and has a profoundly healing impact.
Mahatma Gandhi defined the ideal of ‘Ahimsa’ thus: ‘In its positive form, “Ahimsa” means the largest love, the greatest charity. If I am a follower of “Ahimsa”, I must love my enemy or a stranger to me as I would my wrong-doing father or son. This active “Ahimsa” necessarily includes truth and fearlessness.’ (See; ‘Modern Indian Political Thought; Text and Context’ by Bidyut Chakrabarty and Rajendra Kumar Pandey, Sage Publications India, Pvt. Ltd., www.sagepub.in).
In the latter publication, the authors also defined the essence of ‘satyagraha’ as ‘protest without rancour’ and this is seen as ‘holding the key to his entire campaign’ of non-violent resistance. From these perspectives, the teaching, ‘hatred begets hatred’ acquires more salience and meaning.
Accordingly, the voice of reason and love needs to come centre stage and take charge of current international political discourse. The UN and allied organizations which advocate conflict resolution by peaceful means need to get together and ensure that their voices are clearly heard and understood. The global South could help in this process by seeing to the vibrant rejuvenation of organizations such as the Non-aligned Movement.
An immediate task for the peace-oriented and well meaning is to make the above projects happen fast. In the process they should underscore afresh the profound importance of the teachings of Mahatma Gandhi, who is acclaimed the world over as a uniting and healing political personality and prophet of peace.
If the Mahatma is universally acclaimed, the reason is plain to see. Put simply, he spoke to the hearts and minds of people everywhere, regardless of man-made barriers. The language of peace and brotherhood, that is, is understood by everyone. The world needs more prophets of peace and reconciliation of the likes of the Mahatma to drown out the voices of discord and war-mongering and ensure that the language of humanity prevails.
Features
Exciting scene awaits them …
The Future Model Hunt extravaganza, organised by Rukmal Senanayake, and advocacy trainer Tharaka Gurukanda, held in late January 2026, has brought into the limelight four outstanding contestants who will participate, at the international level, this year – Sandeepa Sewmini, Demitha Jayawardhana, Diwyanjana Senevirathna, and Nimesha Premachandra.
Nimesha took the honours as Mrs. Tourism Sri Lanka 2026 and was featured in The Island of 05th March,
Sandeepa Sewmini was crowned Miss Supranational 2026 and will represent Sri Lanka at the big event to be held in Poland later in the year.
A Business Management and Human Resources student, she will be competing under the guidance of Rukmal Senanayake from the Model With Ruki – Model Academy & Agency.
The Mister Supranational Sri Lanka crown went to Demitha Jayawardhana, a 20-year-old professional model and motocross rider.
Apart from modelling he is engaged in his family business.

Demitha Jayawardhana: Mister Supranational Sri Lanka 2026
Demitha is also a badminton player with a strong passion for sports, fitness and personal growth.
In fact, he is recognised for his strength, discipline, and passion for fitness.
A past student of Wycherley International School and St Peter’s College, Colombo, Demitha is currently in his second year of Economics Management at the Royal Institute of Colombo.
He will represent Sri Lanka at the 10th edition of the Mister Supranational pageant, in Poland, in August, 2026.
Mister and Miss Supranational are annual international beauty pageants, held in Poland, and are designed to discover new talent for the modelling and television industries and produce instant celebrities.
The competition focuses on elegance, intelligence, and social advocacy, with contestants, representing their countries.
The newly appointed Miss Teen International Sri Lanka 2026 is Diwyanjana Senevirathna.
She was crowned at the Future Model Hunt and will represent Sri Lanka at the Miss Teen International 2026 pageant in India.
Diwyanjana is noted for her grace and dedication to representing the country at this prestigious event that aims to celebrate talent, intelligence, charm, and individuality, and provide a platform for young girls to showcase their skills.
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