Australia Battles to Save Last 11 Wild ‘Earless Dragons’ 

This picture taken on March 25, 2024 shows a grassland earless dragon lizard at the Tidbinbilla Nature Reserve located on the outskirts of the Australian capital city of Canberra. (AFP)
This picture taken on March 25, 2024 shows a grassland earless dragon lizard at the Tidbinbilla Nature Reserve located on the outskirts of the Australian capital city of Canberra. (AFP)
TT

Australia Battles to Save Last 11 Wild ‘Earless Dragons’ 

This picture taken on March 25, 2024 shows a grassland earless dragon lizard at the Tidbinbilla Nature Reserve located on the outskirts of the Australian capital city of Canberra. (AFP)
This picture taken on March 25, 2024 shows a grassland earless dragon lizard at the Tidbinbilla Nature Reserve located on the outskirts of the Australian capital city of Canberra. (AFP)

Australia's grassland earless dragon is no bigger than a pinkie when it emerges from its shell, but the little lizard faces an enormous challenge in the years ahead: avoiding extinction.

As recently as 2019, scientists in Canberra counted hundreds of grassland earless dragons in the wild. This year, they found 11.

In other areas of the country, the lizard has not been seen for three decades.

The earless dragon -- which is light brown and has long white stripes down its body -- measures about 15 centimeters (the size of a US$1 bill) when fully grown.

It lacks an external ear opening and functional eardrum, hence the name.

Australia has four species of earless dragons. Three are critically endangered, the highest level of risk, while the fourth is endangered.

The critically endangered dragons will likely be extinct in the next 20 years without conservation efforts.

"If we properly manage their conservation, we can bring them back," said University of Canberra Professor Bernd Gruber, who is working to do just that.

Breeding programs

Australia is home to thousands of unique animals, including 1,130 species of reptiles that are found nowhere else in the world.

Climate change, invasive plants and animals, and habitat destruction -- such as the 2019 bushfires, which burned more than 19 million hectares (46 million acres) -- have pushed Australia's native species to the brink.

In the past 300 years, about 100 of Australia's unique flora and fauna species have been wiped off the planet.

To save the earless dragons there are several breeding programs under way across Australia, including a bio-secure facility in Canberra's bushlands, which Gruber is overseeing.

On shelves are dozens of tanks that house the lizards -- one to each container -- with a burrow, grass and heat lamps to keep them warm.

The biggest problem is matchmaking, with the territorial female lizards preferring to choose their mates.

This means that scientists must introduce different male lizards to the female until she approves.

If that was not hard enough, scientists must also use genetic analysis to determine which lizards are compatible together and ensure genetic diversity in their offspring.

At any one time, the breeding programs around Australia can have up to 90 earless dragons, which will eventually be released back into the wild.

At the moment, Gruber is looking after more than 20 small lizards that have just hatched. Scientists almost missed the tiny eggs until three weeks ago.

"There is a sense of hope looking over them," he told AFP.

Habitat destruction

Despite the efforts of scientists, the lizards are contending with a shrinking habitat and a changing climate.

Australian Conservation Foundation campaigner Peta Bulling said the lizards only live in temperate grasslands, most of which have been destroyed by urban development.

Only 0.5 percent of grasslands present at the time of European colonization still exist.

Without the lizards, Australia's alpine grasslands could look vastly different.

"We don't understand everything the grassland earless dragons do in the ecosystem, but we can make guesses they play an important role in managing invertebrate populations. They live in burrows in the soil, so they are probably aerating the soil in different ways too," she told AFP.

Bulling said that while it was important to bring the lizard back, it was also vital to protect their habitats, without which the newly saved lizards would have nowhere to live.

"They are highly specialized to live in their habitat but they will not adapt quickly to change," she said.

Last year, scientists rediscovered a small number of another kind of earless dragons after 50 years in an area that is being kept secret for conservation reasons.

Resources are being poured into understanding just how big that population is and what can be done to protect it.



Researchers Document Huge Drop in African Elephants in a Half Century

 Elephants walk at the Amboseli National Park in Kajiado County, Kenya, April 4, 2024. REUTERS/Monicah Mwangi/File Photo
Elephants walk at the Amboseli National Park in Kajiado County, Kenya, April 4, 2024. REUTERS/Monicah Mwangi/File Photo
TT

Researchers Document Huge Drop in African Elephants in a Half Century

 Elephants walk at the Amboseli National Park in Kajiado County, Kenya, April 4, 2024. REUTERS/Monicah Mwangi/File Photo
Elephants walk at the Amboseli National Park in Kajiado County, Kenya, April 4, 2024. REUTERS/Monicah Mwangi/File Photo

African elephants are Earth's largest land animals, remarkable mammals that are very intelligent and highly social. They also are in peril. Fresh evidence of this comes in a study that documents alarming population declines at numerous sites across the continent over about a half century.

Researchers unveiled on Monday what they called the most comprehensive assessment of the status of the two African elephant species - the savanna elephant and forest elephant - using data on population surveys conducted at 475 sites in 37 countries from 1964 through 2016.

The savanna elephant populations fell by about 70% on average at the surveyed sites and the forest elephant populations dropped by about 90% on average at the surveyed sites, with poaching and habitat loss the main drivers. All told, there was a 77% population decrease on average at the various surveyed sites, spanning both species, Reuters reported.

Elephants vanished at some sites while their populations increased in other places thanks to conservation efforts.

"A lot of the lost populations won't come back, and many low-density populations face continued pressures. We likely will lose more populations going forward," said George Wittemyer, a Colorado State University professor of wildlife conservation and chair of the scientific board of the conservation group Save the Elephants, who helped lead the study published in the journal Proceedings of the National Academy of Sciences.

Poaching typically involves people killing elephants for their tusks, which are sold illegally on an international black market driven mostly by ivory demand in China and other parts of Asia. Agricultural expansion is the top factor in habitat loss.

The forest elephant population is estimated to be about a third that of savanna elephants. Poaching has affected forest elephants disproportionately and has ravaged populations of both species in northern and eastern Africa.

"We have lost a number of elephant populations across many countries, but the northern Sahel region of Africa - for example in Mali, Chad and Nigeria - has been particularly hard hit. High pressure and limited protection have culminated in populations being extirpated," Wittemyer said.

But in southern Africa, elephant populations rose at 42% of the surveyed sites.

"We have seen real success in a number of places across Africa, but particularly in southern Africa, with strong growth in populations in Botswana, Zimbabwe and Namibia. For populations showing positive trends, we have had active stewardship and management by the governments or outside groups that have taken on a management role," Wittemyer said.

The study did not track a continent-wide population tally because the various surveys employed different methodologies over different time frames to estimate local elephant population density, making a unified head count impossible. Instead, it assessed population trends at each of the surveyed sites.

A population estimate by conservationists conducted separately from this study put the two species combined at between 415,000 and 540,000 elephants as of 2016, the last year of the study period. It remains the most recent comprehensive continent-wide estimate.

"The loss of large mammals is a significant ecological issue for Africa and the planet," said conservation ecologist and study co-author Dave Balfour, a research associate in the Centre for African Conservation Ecology at Nelson Mandela University in South Africa.

The world's third extant elephant species, the slightly smaller Asian elephant, faces its own population crisis, with similar factors at play as in Africa.

Of African elephants, Wittemyer said, "While the trends are not good, it is important to recognize the successes we have had and continue to have. Learning how and where we can be successful in conserving elephants is as important as recognizing the severity of the decline they have experienced."

Wittemyer added of these elephants: "Not only one of the most sentient and intelligent species we share the planet with, but also an incredibly important part of ecosystems in Africa that structures the balance between forest and grasslands, serves as a critical disperser of seeds, and is a species on which a multitude of other species depend on for survival."