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Human activities in Asia have reduced elephant habitat by nearly two-thirds since 1700

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Although elephants can cross roads and other infrastructure, elephant habitats across Asia are increasingly hemmed in, with firm boundaries between human and wildlife spaces. These elephants are in Sri Lanka. Photo: Shermin de Silva

Despite their iconic status and long association with humans, Asian elephants are one of the most endangered large mammals, Down to Earth reported.Believed to number between 45,000 and 50,000 individuals worldwide, they are at risk throughout Asia due to human activities, such as deforestation, mining, dam building and road construction, which have damaged numerous ecosystems.

My colleagues and I wanted to know when human actions started to fragment wildlife habitats and populations to the degree seen today. We quantified these impacts by considering them through the needs of this species.

In a newly published study, we examined the centuries-long history of Asian landscapes that once were suitable elephant habitat and often were managed by local communities, prior to the colonial era.In our view, understanding this history and restoring some of these relationships may be the key to living with elephants, and other large wild animals, in the future.

How have humans affected wildlife?

It isn’t easy to measure human impacts on wildlife across a region as large and diverse as Asia and more than a century ago. Historical data for many species is sparse. Museums, for instance, only contain specimens collected from certain locations.

Many animals also have very specific ecological requirements, and there often isn’t sufficient data on these features, at a fine scale, going far into the past. For instance, a species might prefer particular microclimates or vegetation types that occur only at particular elevations.

For nearly two decades, I’ve been studying Asian elephants. As a species, these animals are breathtakingly adaptable: They can live in seasonally dry forests, grasslands or the densest of rain forests.

If we could match the habitat requirements of elephants to data sets showing how these habitats changed over time, we knew that we could understand how land-use changes have affected elephants and other wildlife in these environments.

Dramatic declines

Land-use patterns changed significantly on every continent, starting with the Industrial Revolution in the 1700s, and extending through the colonial era into the mid-20th century. Asia was no exception.

For most areas, we found that suitable elephant habitat took a steep dive around this time. We estimated that from 1700 through 2015 the total amount of suitable habitat decreased by 64 percent.

More than 1.2 million square miles (three million square kilometers) of land were converted for plantations, industry and urban development. With respect to potential elephant habitat, most of the change occurred in India and China, each of which saw conversion in more than 80 percent of these landscapes.

In other areas of Southeast Asia — such as a large hot spot of elephant habitat in central Thailand, which was never colonized — habitat loss happened more recently, in the mid-20th century. This timing corresponds to logging concurrent with the so-called Green Revolution, which introduced industrial agriculture to many parts of the world.

Could the past be the key to the future?

Looking back at land-use change over centuries makes it clear just how drastically human actions have reduced habitat for Asian elephants. The losses that we measured greatly exceed estimates of “catastrophic” human impacts on so-called wilderness or forests within recent decades.

Our analysis shows that if you were an elephant in the 1700s, you might have been able to range across 40 per cent of the available habitat in Asia with no problem, because it was one large, contiguous area that contained many ecosystems where you could live. This enabled gene flow among many elephant populations. But by 2015, human activities had so drastically fragmented the total suitable area for elephants that the largest patch of good habitat represented less than 7 per cent of it.

Sri Lanka and peninsular Malaysia have a disproportionately high share of Asia’s wild elephant population, relative to available elephant habitat area. Thailand and Myanmar have smaller populations relative to area. Interestingly, the latter are countries known for their large captive or semi-captive elephant populations.

Less than half of the areas that contain wild elephants today have adequate habitat for them. Elephants’ resulting use of increasingly human-dominated landscapes leads to confrontations that are harmful for both elephants and people.

However, this long view of history reminds us that protected areas alone are not the answer, since they simply cannot be large enough to support elephant populations. Indeed, human societies have shaped these very landscapes for millennia.

Today there is a pressing challenge to balance human subsistence and livelihood requirements with the needs of wildlife. Restoring traditional forms of land management and local stewardship of these landscapes can be an essential part of protecting and recovering ecosystems that serve both people and wildlife in the future.The Conversation. Down to Earth



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“I extend my heartfelt wishes to all Sri Lankans for a peaceful and joyous Sinhala and Tamil New Year!” – President

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President Anura Kumara Dissanayake,  issuing a New Year message, extend his heartfelt wishes to all Sri Lankans for a peaceful and joyous Sinhala and Tamil New Year!

The Sinhala and Tamil New Year, which symbolises the aspiration for renewal both physically and spiritually, is the foremost cultural festival of the people of this country.

During the Sinhala and Tamil New Year, traditional customs are upheld, with priority accorded to rituals and religious observances, and activities undertaken collectively at a common auspicious time. This shared cultural practice vividly reflects our nation’s identity before the world, as well as the strong socio-cultural bonds that exist among our communities.

We firmly believe that the future path of national development can only be shaped in harmony with this invaluable culture and our distinguished historical heritage. Accordingly, it must be recalled that all our future development plans have been formulated upon the firm foundation of these precious traditions and cultural values.

Moreover, the common aspiration embodied in the customs and rituals associated with the solar transition is the nurturing of a compassionate individual who values togetherness, respects others, and lives in harmony with nature. I believe that the virtues and values of unity reflected in these New Year traditions should not be confined to these few days alone, but should instead be demonstrated throughout the year in our daily conduct.

In the face of the most significant recent natural disaster challenge encountered in the past year, we demonstrated to the world our resilience and capacity to withstand internal shocks. At the same time, in responding to the external challenges arising from the conflict in the Middle East, the Government has already set in motion a well-planned and effectively managed programme to overcome these difficulties.

As a nation, in overcoming these challenges together, I call upon all of you to further dedicate yourselves to enriching your lives through the values of togetherness, sharing, and solidarity exemplified during the Sinhala and Tamil New Year season.

As we strengthen the achievements we have secured and move forward with unwavering resolve in the face of emerging challenges, I invite everyone to join hands in unity to realise the vision of “A Thriving Nation – A Beautiful Life” for all.

I extend my heartfelt wishes to all Sri Lankans for a peaceful and joyous Sinhala and Tamil New Year!

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US blockade of Iran would worsen global energy crisis, analysts say

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Cargo ships in the Gulf waiting near the Strait of Hormuz are seen from Ras al-Khaimah in the United Arab Emirates [File: Aljazeera]

United States President Donald Trump’s planned naval blockade of Iran would further cripple international shipping, exacerbating the energy crisis roiling the global economy, analysts warn.

Oil prices surged above $100 a barrel on Monday after Trump announced that the US Navy would blockade the Strait of Hormuz and “interdict every vessel in international waters that has paid a toll to Iran”

“Iran will not be allowed to profit off this Illegal Act of EXTORTION,” Trump said on Truth Social.

Central Command, the US military’s command responsible for operations in the Middle East, said in a statement the blockade would affect only ships entering and exiting Iranian ports, an apparent scaling-back of Trump’s threat to fully block the strait.

Trita Parsi, cofounder of the US-based Quincy Institute for Responsible Statecraft, said a US blockade would have a cascading impact across the global economy.

“Anything that currently takes more oil off the market will push prices up, which in turn will push gas prices further,” Parsi told Al Jazeera.

Oil could rise above $150 a barrel if the blockade were to trigger retaliation from the Iran-aligned Houthis in Yemen, who could shut down Bab al-Mandeb, a strait that connects the Red Sea to the Gulf of Aden and Indian Ocean, Parsi said.

The strait is an alternative export route for Gulf oil and gas.

A blockade aimed at depriving Iran of revenues would mark a sudden reversal in policy by Washington.

The Trump administration last month announced it would waive some sanctions on Iranian oil exports as a way to help ease the global energy crunch.

Iran has essentially closed the strait since the start of the US-Israeli war on February 28, allowing only a small number of ships to transit after vetting and authorisation.

About 3,200 vessels were stranded west of the strait due to the blockage as of Saturday, according to the maritime intelligence company Windward.

Anas Alhajji, former chief economist at NGP Energy Capital Management, said expected non-Iranian ships would likely keep avoiding the strait despite the US military’s assurances that they will not be impeded because of elevated insurance premiums.

Ships may also fear retaliation from Iran, Alhajji said.

“Therefore, the Trump blockade of the Iranian ports is an actual blockade of the Hormuz Strait,” Alhajji told Al Jazeera.

The resulting rise in oil and gas prices would also cause the cost of chemicals, fertilisers and raw materials used to make plastics to increase, according to analysts.

Cameron Johnson, a senior partner at the Shanghai-based supply chain consultancy Tidalwave Solutions, said he expects prices of many raw materials to rise within several weeks if Trump makes good on his blockade threat.

“The wild card really is the timeframe on this,” Johnson told Al Jazeera.

“If this is a negotiating tactic – remember we still have eight or nine days left of the ceasefire – then it may not really matter. But if this prolongs itself into the end of the month and into the first week of May, you will see prices all over the world spike for raw materials.”

Deborah Elms, head of trade policy at the Hinrich Foundation in Singapore, said the situation for global supply chains could get “much worse” under the blockade.

“Some of the problems are obvious, but many are not. As an example, fabrics will get more expensive,” Elms told Al Jazeera.

“Packaging is already a challenge for firms. Many can’t get blister packs for pills or lids for consumer goods. We can expect consequences for food production later this year and into next year with fertiliser disruptions and lack of supply,” Elms said.

Chad Norville, president of the oil and gas industry news site Rigzone, said Trump’s threat is a further blow to confidence in the situation in the strait ever returning to normal.

The threat alone is likely to drive up insurance premiums for shipping and logistics companies and reduce the volume of trade passing the strait each day, he said.

“Disruptions to shipping and elevated risk in the region were already well established due to the conflict,” Norville told Al Jazeera.

“This threat doesn’t create that baseline. It amplifies it by reinforcing uncertainty around one of the world’s most critical chokepoints.”

[Aljazeera]

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“Let us resolve, with renewed determination to overcome obstacles and build a better and more prosperous nation” -PM

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Prime Minister Dr Harini Amarasooriya in her New Year message requested every Sri Lankan to resolve, with renewed determination to overcome obstacles and build a better and more prosperous nation.

The full text of the PM’s message:

“Marking the auspicious transition of the sun from one planet to another, and the arrival of the spring season following the harvest, the Sinhala and Tamil New Year celebrated by the people of Sri Lanka since ancient times, has dawned once again.

The New Year is not merely a festive occasion; it symbolizes a renewal of prosperity, unity, coexistence, and the strengthening of mutual relationships embedded within our cultural values.

On this occasion, I extend my wishes for a peaceful and prosperous Sinhala and Tamil New Year to all Sri Lankans who celebrate this occasion with their families and loved ones, observing customs at the auspicious time.

A unique feature of Sinhala and Tamil New Year is the way an entire nation comes together through a shared set of customs. Despite the demands and challenges of daily life, this season offers a valuable opportunity to move forward with renewed hope as families, communities and a nation.

The true blessing of the New Year lies in setting aside differences and grievances, and embracing a fresh beginning in a spirit of solidarity and goodwill. Especially in the face of ongoing global challenges, the courage, compassion and resilience shown by our people in facing various natural and economic hardships in recent times stand as an example to the world. It is our responsibility to carry forward that collective strength.

At this auspicious moment, I extend my greetings to our fellow Sri Lankans working overseas, who dedicate themselves to securing a better future for their families and for the country. In particular, I extend my thoughts for the safety and well-being of those living in the Middle East during these tumultuous times.

Let us resolve, with renewed determination to overcome obstacles and build a better and more prosperous nation. As we undertake in a significant social and political transformations, we remain committed to striving tirelessly towards a better future.

May this Sinhala and Tamil New Year be blessed with happiness and prosperity!”

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