Features
Extinction in isolation: Sri Lanka’s lizards at the climate crossroads
Climate change is no longer a distant or abstract threat to Sri Lanka’s biodiversity. It is already driving local extinctions — particularly among lizards trapped in geographically isolated habitats, where even small increases in temperature can mean the difference between survival and disappearance.
According to research by Buddhi Dayananda, Thilina Surasinghe and Suranjan Karunarathna, Sri Lanka’s narrowly distributed lizards are among the most vulnerable vertebrates in the country, with climate stress intensifying the impacts of habitat loss, fragmentation and naturally small population sizes.
Isolation Turns Warming into an Extinction Trap
Sri Lanka’s rugged topography and long geological isolation have produced extraordinary levels of reptile endemism. Many lizard species are confined to single mountains, forest patches or rock outcrops, existing nowhere else on Earth. While this isolation has driven evolution, it has also created conditions where climate change can rapidly trigger extinction.
“Lizards are especially sensitive to environmental temperature because their metabolism, activity patterns and reproduction depend directly on external conditions,” explains Suranjan Karunarathna, a leading herpetologist and co-author of the study. “When climatic thresholds are exceeded, geographically isolated species cannot shift their ranges. They are effectively trapped.”
The study highlights global projections indicating that nearly 40 percent of local lizard populations could disappear in coming decades, while up to one-fifth of all lizard species worldwide may face extinction by 2080 if current warming trends persist.
- Cnemaspis_gunawardanai (Adult Female), Pilikuttuwa, Gampaha District
- Cnemaspis_ingerorum (Adult Male), Sithulpauwa, Hambantota District
- Cnemaspis_hitihamii (Adult Female), Maragala, Monaragala District
- Cnemaspis_gunasekarai (Adult Male), Ritigala, Anuradapura District
- Cnemaspis_dissanayakai (Adult Male), Dimbulagala, Polonnaruwa District
- Cnemaspis_kandambyi (Adult Male), Meemure, Matale District
Heat Stress, Energy Loss and Reproductive Failure
Rising temperatures force lizards to spend more time in shelters to avoid lethal heat, reducing their foraging time and energy intake. Over time, this leads to chronic energy deficits that undermine growth and reproduction.
“When lizards forage less, they have less energy for breeding,” Karunarathna says. “This doesn’t always cause immediate mortality, but it slowly erodes populations.”
Repeated exposure to sub-lethal warming has been shown to increase embryonic mortality, reduce hatchling size, slow post-hatch growth and compromise body condition. In species with temperature-dependent sex determination, warming can skew sex ratios, threatening long-term population viability.
“These impacts often remain invisible until populations suddenly collapse,” Karunarathna warns.
Tropical Species with No Thermal Buffer
The research highlights that tropical lizards such as those in Sri Lanka are particularly vulnerable because they already live close to their physiological thermal limits. Unlike temperate species, they experience little seasonal temperature variation and therefore possess limited behavioural or evolutionary flexibility to cope with rapid warming.
“Even modest temperature increases can have severe consequences in tropical systems,” Karunarathna explains. “There is very little room for error.”
Climate change also alters habitat structure. Canopy thinning, tree mortality and changes in vegetation density increase ground-level temperatures and reduce the availability of shaded refuges, further exposing lizards to heat stress.
Narrow Ranges, Small Populations
Many Sri Lankan lizards exist as small, isolated populations restricted to narrow altitudinal bands or specific microhabitats. Once these habitats are degraded — through land-use change, quarrying, infrastructure development or climate-driven vegetation loss — entire global populations can vanish.
“Species confined to isolated hills and rock outcrops are especially at risk,” Karunarathna says. “Surrounding human-modified landscapes prevent movement to cooler or more suitable areas.”
Even protected areas offer no guarantee of survival if species occupy only small pockets within reserves. Localised disturbances or microclimatic changes can still result in extinction.
Climate Change Amplifies Human Pressures
The study emphasises that climate change will intensify existing human-driven threats, including habitat fragmentation, land-use change and environmental degradation. Together, these pressures create extinction cascades that disproportionately affect narrowly distributed species.
“Climate change acts as a force multiplier,” Karunarathna explains. “It worsens the impacts of every other threat lizards already face.”
Without targeted conservation action, many species may disappear before they are formally assessed or fully understood.
Science Must Shape Conservation Policy
Researchers stress the urgent need for conservation strategies that recognise micro-endemism and climate vulnerability. They call for stronger environmental impact assessments, climate-informed land-use planning and long-term monitoring of isolated populations.
“We cannot rely on broad conservation measures alone,” Karunarathna says. “Species that exist in a single location require site-specific protection.”
The researchers also highlight the importance of continued taxonomic and ecological research, warning that extinction may outpace scientific discovery.
A Vanishing Evolutionary Legacy
Sri Lanka’s lizards are not merely small reptiles hidden from view; they represent millions of years of unique evolutionary history. Their loss would be irreversible.
“Once these species disappear, they are gone forever,” Karunarathna says. “Climate change is moving faster than our conservation response, and isolation means there are no second chances.”
By Ifham Nizam ✍️
Features
How Black Civil Rights leaders strengthen democracy in the US
On being elected US President in 2008, Barack Obama famously stated: ‘Change has come to America’. Considering the questions continuing to grow out of the status of minority rights in particular in the US, this declaration by the former US President could come to be seen as somewhat premature by some. However, there could be no doubt that the election of Barack Obama to the US presidency proved that democracy in the US is to a considerable degree inclusive and accommodating.
If this were not so, Barack Obama, an Afro-American politician, would never have been elected President of the US. Obama was exceptionally capable, charismatic and eloquent but these qualities alone could not have paved the way for his victory. On careful reflection it could be said that the solid groundwork laid by indefatigable Black Civil Rights activists in the US of the likes of Martin Luther King (Jnr) and Jesse Jackson, who passed away just recently, went a great distance to enable Obama to come to power and that too for two terms. Obama is on record as owning to the profound influence these Civil Rights leaders had on his career.
The fact is that these Civil Rights activists and Obama himself spoke to the hearts and minds of most Americans and convinced them of the need for democratic inclusion in the US. They, in other words, made a convincing case for Black rights. Above all, their struggles were largely peaceful.
Their reasoning resonated well with the thinking sections of the US who saw them as subscribers to the Universal Declaration of Human Rights, for instance, which made a lucid case for mankind’s equal dignity. That is, ‘all human beings are equal in dignity.’
It may be recalled that Martin Luther King (Jnr.) famously declared: ‘I have a dream that one day this nation will rise up, live out the true meaning of its creed….We hold these truths to be self-evident, that all men are created equal.’
Jesse Jackson vied unsuccessfully to be a Democratic Party presidential candidate twice but his energetic campaigns helped to raise public awareness about the injustices and material hardships suffered by the black community in particular. Obama, we now know, worked hard at grass roots level in the run-up to his election. This experience proved invaluable in his efforts to sensitize the public to the harsh realities of the depressed sections of US society.
Cynics are bound to retort on reading the foregoing that all the good work done by the political personalities in question has come to nought in the US; currently administered by Republican hard line President Donald Trump. Needless to say, minority communities are now no longer welcome in the US and migrants are coming to be seen as virtual outcasts who need to be ‘shown the door’ . All this seems to be happening in so short a while since the Democrats were voted out of office at the last presidential election.
However, the last US presidential election was not free of controversy and the lesson is far too easily forgotten that democratic development is a process that needs to be persisted with. In a vital sense it is ‘a journey’ that encounters huge ups and downs. More so why it must be judiciously steered and in the absence of such foresighted managing the democratic process could very well run aground and this misfortune is overtaking the US to a notable extent.
The onus is on the Democratic Party and other sections supportive of democracy to halt the US’ steady slide into authoritarianism and white supremacist rule. They would need to demonstrate the foresight, dexterity and resourcefulness of the Black leaders in focus. In the absence of such dynamic political activism, the steady decline of the US as a major democracy cannot be prevented.
From the foregoing some important foreign policy issues crop-up for the global South in particular. The US’ prowess as the ‘world’s mightiest democracy’ could be called in question at present but none could doubt the flexibility of its governance system. The system’s inclusivity and accommodative nature remains and the possibility could not be ruled out of the system throwing up another leader of the stature of Barack Obama who could to a great extent rally the US public behind him in the direction of democratic development. In the event of the latter happening, the US could come to experience a democratic rejuvenation.
The latter possibilities need to be borne in mind by politicians of the South in particular. The latter have come to inherit a legacy of Non-alignment and this will stand them in good stead; particularly if their countries are bankrupt and helpless, as is Sri Lanka’s lot currently. They cannot afford to take sides rigorously in the foreign relations sphere but Non-alignment should not come to mean for them an unreserved alliance with the major powers of the South, such as China. Nor could they come under the dictates of Russia. For, both these major powers that have been deferentially treated by the South over the decades are essentially authoritarian in nature and a blind tie-up with them would not be in the best interests of the South, going forward.
However, while the South should not ruffle its ties with the big powers of the South it would need to ensure that its ties with the democracies of the West in particular remain intact in a flourishing condition. This is what Non-alignment, correctly understood, advises.
Accordingly, considering the US’ democratic resilience and its intrinsic strengths, the South would do well to be on cordial terms with the US as well. A Black presidency in the US has after all proved that the US is not predestined, so to speak, to be a country for only the jingoistic whites. It could genuinely be an all-inclusive, accommodative democracy and by virtue of these characteristics could be an inspiration for the South.
However, political leaders of the South would need to consider their development options very judiciously. The ‘neo-liberal’ ideology of the West need not necessarily be adopted but central planning and equity could be brought to the forefront of their talks with Western financial institutions. Dexterity in diplomacy would prove vital.
Features
Grown: Rich remnants from two countries
Whispers of Lanka
I was born in a hamlet on the western edge of a tiny teacup bay named Mirissa on the South Coast of Sri Lanka. My childhood was very happy and secure. I played with my cousins and friends on the dusty village roads. We had a few toys to play with, so we always improvised our own games. On rainy days, the village roads became small rivulets on which we sailed paper boats. We could walk from someone’s backyard to another, and there were no fences. We had the freedom to explore the surrounding hills, valleys, and streams.
I was good at school and often helped my classmates with their lessons. I passed the General Certificate of Education (Ordinary Level) at the village school and went to Colombo to study for the General Certificate of Education (Advanced Level). However, I did not like Colombo, and every weekend I hurried back to the village. I was not particularly interested in my studies and struggled in specific subjects. But my teachers knew that I was intelligent and encouraged me to study hard.
To my amazement, I passed the Advanced Level, entered the University of Kelaniya, completed an honours degree in Economics, taught for a few months at a central college, became a lecturer at the same university, and later joined the Department of Census and Statistics as a statistician. Then I went to the University of Wales in the UK to study for an MSc.
The interactions with other international students in my study group, along with very positive recommendations from my professors, helped me secure several jobs in the oil-rich Middle Eastern countries, where I earned salaries unimaginable in Sri Lankan terms. During this period, without much thought, I entered a life focused on material possessions, social status, and excessive consumerism.
Life changes
Unfortunately, this comfortable, enjoyable life changed drastically in the mid-1980s because of the political activities of certain groups. Radicalised youths, brainwashed and empowered by the dynamics of vibrant leftist politics, killed political opponents as well as ordinary people who were reluctant to follow their orders. Their violent methods frightened a large section of Sri Lanka’s middle class into reluctantly accepting country-wide closures of schools, factories, businesses, and government offices.
My father’s generation felt a deep obligation to honour the sacrifices they had made to give us everything we had. There was a belief that you made it in life through your education, and that if you had to work hard, you did. Although I had never seriously considered emigration before, our sons’ education was paramount, and we left Sri Lanka.
Although there were regulations on what could be brought in, migrating to Sydney in the 1980s offered a more relaxed airport experience, with simpler security, a strong presence of airline staff, and a more formal atmosphere. As we were relocating permanently, a few weeks before our departure, we had organised a container to transport sentimental belongings from our home. Our flight baggage was minimal, which puzzled the customs officer, but he laughed when he saw another bulky item on a separate trolley. It was a large box containing a bookshelf purchased in Singapore. Upon discovering that a new migrant family was arriving in Australia with a 32-volume Encyclopaedia Britannica set weighing approximately 250 kilograms, he became cheerful, relaxed his jaw, and said, G’day!
Settling in Sydney
We settled in Epping, Sydney, and enrolled our sons in Epping Boys’ High School. Within one week of our arrival from Sri Lanka, we both found jobs: my wife in her usual accounting position in the private sector, and I was taken on by the Civil Aviation Authority (CAA). While working at the CAA, I sat the Australian Graduate Admission Test. I secured a graduate position with the Australian Bureau of Statistics (ABS) in Canberra, ACT.
We bought a house in Florey, close to my office in Belconnen. The roads near the house were eerily quiet. Back in my hometown of Pelawatta, outside Colombo, my life had a distinct soundtrack. I woke up every morning to the radios blasting ‘pirith’ from the nearby houses; the music of the bread delivery van announcing its arrival, an old man was muttering wild curses to someone while setting up his thambili cart near the junction, free-ranging ‘pariah’ dogs were barking at every moving thing and shadows. Even the wildlife was noisy- black crows gathered on the branches of the mango tree in front of the house to perform a mournful dirge in the morning.
Our Australian neighbours gave us good advice and guidance, and we gradually settled in. If one of the complaints about Asians is that they “won’t join in or integrate to the same degree as Australians do,” this did not apply to us! We never attempted to become Aussies; that was impossible because we didn’t have tanned skin, hazel eyes, or blonde hair, but we did join in the Australian way of life. Having a beer with my next-door neighbour on the weekend and a biannual get-together with the residents of the lane became a routine. Walking or cycling ten kilometres around the Ginninderra Lake with a fit-fanatic of a neighbour was a weekly ritual that I rarely skipped.
Almost every year, early in the New Year, we went to the South Coast. My family and two of our best friends shared a rented house near the beach for a week. There’s not much to do except mix with lots of families with kids, dogs on the beach, lazy days in the sun with a barbecue and a couple of beers in the evening, watching golden sunsets. When you think about Australian summer holidays, that’s all you really need, and that’s all we had!
Caught between two cultures
We tried to hold on to our national tradition of warm hospitality by organising weekend meals with our friends. Enticed by the promise of my wife’s home-cooked feast, our Sri Lankan friends would congregate at our place. Each family would also bring a special dish of food to share. Our house would be crammed with my friends, their spouses and children, the sound of laughter and loud chatter – English mingled with Sinhala – and the aroma of spicy food.
We loved the togetherness, the feeling of never being alone, and the deep sense of belonging within the community. That doesn’t mean I had no regrets in my Australian lifestyle, no matter how trivial they may have seemed. I would have seen migration to another country only as a change of abode and employment, and I would rarely have expected it to bring about far greater changes to my psychological role and identity. In Sri Lanka, I have grown to maturity within a society with rigid demarcation lines between academic, professional, and other groups.
Furthermore, the transplantation from a patriarchal society where family bonds were essential to a culture where individual pursuit of happiness tended to undermine traditional values was a difficult one for me. While I struggled with my changing role, my sons quickly adopted the behaviour and aspirations of their Australian peers. A significant part of our sons’ challenges lay in their being the first generation of Sri Lankan-Australians.
The uniqueness of the responsibilities they discovered while growing up in Australia, and with their parents coming from another country, required them to play a linguistic mediator role, and we, as parents, had to play the cultural mediator role. They were more gregarious and adaptive than we were, and consequently, there was an instant, unrestrained immersion in cultural diversity and plurality.
Technology
They became articulate spokesmen for young Australians growing up in a world where information technology and transactions have become faster, more advanced, and much more widespread. My work in the ABS for nearly twenty years has followed cycles, from data collection, processing, quality assurance, and analysis to mapping, research, and publishing. As the work was mainly computer-based and required assessing and interrogating large datasets, I often had to depend heavily on in-house software developers and mainframe programmers. Over that time, I have worked in several areas of the ABS, making a valuable contribution and gaining a wide range of experience in national accounting.
I immensely valued the unbiased nature of my work, in which the ABS strived to inform its readers without the influence of public opinion or government decisions. It made me proud to work for an organisation that had a high regard for quality, accuracy, and confidentiality. I’m not exaggerating, but it is one of the world’s best statistical organisations! I rubbed shoulders with the greatest statistical minds. The value of this experience was that it enabled me to secure many assignments in Vanuatu, Fiji, East Timor, Saudi Arabia, and the Solomon Islands through the World Bank and the International Monetary Fund after I left the ABS.
Living in Australia
Studying and living in Australia gave my sons ample opportunities to realise that their success depended not on acquiring material wealth but on building human capital. They discovered that it was the sum total of their skills embodied within them: education, intelligence, creativity, work experience and even the ability to play basketball and cricket competitively. They knew it was what they would be left with if someone stripped away all of their assets. So they did their best to pursue their careers on that path and achieve their life goals. Of course, the healthy Australian economy mattered too. As an economist said, “A strong economy did not transform a valet parking attendant into a professor. Investment in human capital did that.”
Nostalgia
After living in Australia for several decades, do I miss Sri Lanka? Which country deserves my preference, the one where I was born or the one to which I migrated? There is no single answer; it depends on opportunities, prospects, lifestyle, and family. Factors such as the cost of living, healthcare, climate, and culture also play significant roles in shaping this preference. Tradition in a slow-motion place like Sri Lanka is an ethical code based on honouring those who do things the same way you do, and dishonour those who don’t. However, in Australia, one has the freedom to express oneself, to debate openly, to hold unconventional views, to be more immune to peer pressure, and not to have one’s every action scrutinised and discussed.
For many years, I have navigated the challenges of cultural differences, conflicting values, and the constant negotiation of where I truly ‘belong.’ Instead of yearning for a ‘dream home’ where I once lived, I have struggled, and to some extent succeeded, to find a home where I live now. This does not mean I have forgotten or discarded my roots. As one Sri Lankan-Australian senior executive remarked, “I have not restricted myself to the box I came in… I was not the ethnicity, skin colour, or lack thereof, of the typical Australian… but that has been irrelevant to my ability to contribute to the things which are important to me and to the country adopted by me.” Now, why do I live where I live – in that old house in Florey? I love the freshness of the air, away from the city smog, noisy traffic, and fumes. I enjoy walking in the evening along the tree-lined avenues and footpaths in my suburb, and occasionally I see a kangaroo hopping along the nature strip. I like the abundance of trees and birds singing at my back door. There are many species of birds in the area, but a common link with ours is the melodious warbling of resident magpies. My wife has been feeding them for several years, and we see the new fledglings every year. At first light and in the evening, they walk up to the back door and sing for their meal. The magpie is an Australian icon, and I think its singing is one of the most melodious sounds in the suburban areas and even more so in the bush.
by Siri Ipalawatte
Features
Big scene for models…
Modelling has turned out to be a big scene here and now there are lots of opportunities for girls and boys to excel as models.
Of course, one can’t step onto the ramp without proper training, and training should be in the hands of those who are aware of what modelling is all about.
Rukmal Senanayake is very much in the news these days and his Model With Ruki – Model Academy & Agency – is responsible for bringing into the limelight, not only upcoming models but also contestants participating in beauty pageants, especially internationally.
On the 29th of January, this year, it was a vibrant scene at the Temple Trees Auditorium, in Colombo, when Rukmal introduced the Grey Goose Road To Future Model Hunt.

Tharaka Gurukanda … in
the scene with Rukmal
This is the second Model Hunt to be held in Sri Lanka; the first was in 2023, at Nelum Pokuna, where over 150 models were able to showcase their skills at one of the largest fashion ramps in Sri Lanka.
The concept was created by Rukmal Senanayake and co-founded by Tharaka Gurukanda.
Future Model Hunt, is the only Southeast Asian fashion show for upcoming models, and designers, to work along and create a career for their future.
The Grey Goose Road To Future Model Hunt, which showcased two segments, brought into the limelight several models, including students of Ruki’s Model Academy & Agency and those who are established as models.
An enthusiastic audience was kept spellbound by the happenings on the ramp.

Doing it differently
Four candidates were also crowned, at this prestigious event, and they will represent Sri Lanka at the respective international pageants.
Those who missed the Grey Goose Road To Future Model Hunt, held last month, can look forward to another exciting Future Model Hunt event, scheduled for the month of May, 2026, where, I’m told, over 150 models will walk the ramp, along with several designers.
It will be held at a prime location in Colombo with an audience count, expected to be over 2000.
Model With Ruki offers training for ramp modelling and beauty pageants and other professional modelling areas.
Their courses cover: Ramp walk techniques, Posture and grooming, Pose and expression, Runway etiquette, and Photo shoots and portfolio building,
They prepare models for local and international fashion events, shoots, and competitions and even send models abroad for various promotional events.
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