– credit Tony Kershaw via SWNS
Tipah and her litter of cubs – credit Tony Kershaw via SWNS


– credit Tony Kershaw via SWNS
Tipah and her litter of cubs – credit Tony Kershaw via SWNS




SWNSTropical rainforests are known for their unique biodiversity, with species found nowhere else on Earth. But nearly 30% of tropical rainforest has been destroyed or has become seriously degraded since 1990. Many of these forests have not been fully explored for their biodiversity. This means that the world may be losing species before they are even discovered by modern science.
In Africa, forest loss is rapid; about 25% of the continent’s tropical forest has been lost since 1990, against a backdrop of incomplete knowledge of where the biodiversity is located.
Greatly lagging in this respect are the “sky islands” of northern Mozambique: isolated granite mountains that rise sharply out of the savanna plains. They were left standing when softer rock around them gradually eroded, and can be as high as 3,000 metres elevation. Because they rise so steeply, the sky islands attract clouds and rainfall, feeding moisture to the tropical rainforests on their slopes within an otherwise arid terrain. Isolation has allowed unique species to evolve on each mountain, such as geckos, rodents, fishes, crabs, frogs, butterflies and bats.
From 2014 to 2018, a research team led by fellow herpetologist Werner Conradie and myself explored these sky island forests to catalogue the species of reptiles found there. We found that each sky island forest is home to a previously unknown species of chameleon within the genus Nadzikambia (forest-dwelling “sylvan chameleons”).
Unfortunately, these chameleons are already at risk of extinction due to the heavy slash-and-burn clearing of the forests, the only place they can call home.
We’ve described these new species, choosing four names to highlight pioneering women scientists whose work inspired us to strive towards new discoveries, but also to call attention to the losses of their forest habitat.
Over the course of several years, we explored four of Mozambique’s sky islands – Mount Namuli, Mount Inago, Mount Chiperone and Mount Ribáuè – with the aim of cataloguing all reptiles but also in the hopes of finding new species of chameleons. This was because a species of sylvan chameleon had been discovered on one of these mountains during the 1960s, but they were not known from any other mountains.
However, chameleons can be very difficult to find, given their ability to remain camouflaged against the background coupled with their slow movements. They are more easily spotted at night while they are sleeping, as they stand out against the vegetation when illuminated by a strong beam of light. Sylvan chameleons are even more difficult to spot than others, as they usually perch high in the thick forest canopy – tens of metres up.
The search meant dealing with some tough conditions: a long, arduous trek up the hot, arid slopes to reach the forest high up the mountain. Establishing a remote base camp was essential. All food, clothes and gear had to be packed into the camp, and we didn’t know how long it would take to find any animals.
At each of these mountains, we surveyed every night for chameleons – no trails to follow, no GPS signal to guide us, no cellphone signal to call for help.
Sometimes we were lucky and found chameleons on the first or second night. At other mountains we were not so lucky, with fruitless searches making it necessary to return another year.
Eventually these mountains revealed their secrets and we discovered four new species of sylvan chameleon, one on each of the four mountains.
We don’t know how big their populations are, but we assume they are in decline. Most of their habitat has been destroyed by forest clearing to make way for agriculture, with increasingly rapid losses in the last decade. We estimate that in some cases, 80%-90% of their habitat has been destroyed.
When parts of an ecosystem are lost, the whole becomes unstable and is eventually lost.
To highlight their predicament, we have described and named these chameleons and have forecast that three of these species are at high risk of extinction.
In particular, we highlight Nadzikambia goodallae from Mount Ribáuè. This species has been named in honour of the distinguished scientist Jane Goodall, whose own study species, the chimpanzee, is under similar pressures from loss of its rainforest habitat.
We also honour the renowned discoverer of the structure of DNA, Rosalind Franklin, by naming the species from Mount Namuli as Nadzikambia franklinae. The use of DNA data from these chameleons was essential to confirm them as new species.
We have dubbed the species from Mount Inago as Nadzikambia evanescens, meaning “vanishing” in Latin, acknowledging the state of the forest destruction.
The final species, Nadzikambia nubila, is named for the cloudy aspect of Mount Chiperone. This species has a lower risk of extinction given that the local community view the forest as sacred, and say it should be protected.
Female sylvan chameleon (Nadzikambia nubila) from Mount Chiperone. Krystal Tolley, CC BY
This latter case is significant, as it demonstrates that wholesale destruction of these forests is not an essential trade-off for local people to thrive. If encouraged and supported, community support and buy-in can be a solution to protect biodiversity in these sensitive ecosystems.![]()
Krystal Tolley, Principal Scientist, University of Johannesburg
This article is republished from The Conversation under a Creative Commons license. Read the original article.


On paper, Australia is a conservation success story.
Over the past 15 years, we’ve dedicated vast areas of land to conservation. Our primary goal has been to protect our unique plants, animals, and ecosystems. As a result, Australia now has one of the largest protected area estates in the world, covering roughly 22% of the country.
That’s an impressive achievement, and a significant step towards our goal of protecting 30% of Australia’s land by 2030.
But there’s a problem. Our new analysis shows we’re not protecting the places that matter most for Australia’s diverse wildlife and environments.
So what are we actually conserving? And what should change?
Our recent analysis of Australia’s network of protected areas shows, between 2010 and 2022, we’ve nearly doubled the amount of land under protection. Protected land refers to areas which are specifically set aside to conserve nature. However, this expansion has done little to help our most at-risk animals, plants, and ecosystems.
Our national list of threatened species, which identifies the plants and animals most at risk of extinction, illustrates this. Since 2010, we’ve only slightly increased the amount of protected land that’s home to threatened species. Based on our data, in that time this figure rose by an average of just 3%.
Worse still, 160 species have virtually no protection. That’s roughly 10% of our endangered species list. Many others species only have a very small amount of their habitat inside the fences of protected areas.
One example is the Margaret River burrowing crayfish, a critically endangered crayfish from Western Australia. Currently none of its two remaining habitats are protected.
And the Grey Range thick-billed grasswren, a bird endemic to New South Wales, is now critically endangered because of habitat loss and agriculture. However none of its habitat, found just north of Broken Hill, is formally protected.
Tragically, these are not exceptional cases. And they are exactly the plants and animals that protected areas are designed to protect.
The same is true for Australia’s ecosystems, which are geographic areas where plants and animals interact with their natural environment. Nationally, we have nearly 100 ecological communities which are listed as threatened. But in the last decade, we’ve only improved protection for a handful of these.
And some still have no protection. The critically endangered weeping myall woodlands in the Hunter Valley, Sydney’s blue gum high forest and the iron-grass natural temperate grassland of South Australia are just three examples.
For decades, we’ve tended to protect land that is more remote and less productive. Our findings suggest this pattern is continuing today.
However, many of Australia’s at-risk plants, animals, and ecosystems are found in heavily modified landscapes. These include areas which have been cleared for agriculture or are close to towns and cities. But under current conservation models, we’re much less likely to protect these kinds of land.
As a result, we are expanding protected areas but not necessarily where they matter most.
Protected areas, such as Kakadu National Park, help safeguard endangered species. Liana Joseph/Author provided, CC BY-NDTo be clear, protecting some of these landscapes is incredibly valuable. This is especially true given the current and future impacts of climate change. And in Australia, we’ve done well to protect nearly half of intact ecosystems by including them in nature reserves.
But protecting intact ecosystems is just one piece of the conservation puzzle.
Australia has committed to protect 30% of our lands and waters by 2030. This is known as the “30 by 30” target. We are also a leader in the so-called high ambition coalition of 124 countries which have pledged to meet this same target.
But to protect our biodiversity we need to focus on which land is protected, not just how much. A hectare in the wrong place will have little effect, while a hectare in the right place can be the bridge between survival and extinction.
So as Australia moves towards the “30 by 30” target, the key challenge will be ensuring we protect land strategically, not opportunistically.
The good news is, we now have the tools to do so. Australia has some of the best biodiversity data in the world. This is because the Australian government has invested in ecologists from around the country, allowing them to closely study endangered species.
However, what we’re missing is a commitment to use this information. So far, we’ve largely measured progress using one blunt metric: total area protected. This metric is easy to communicate but is dangerously misleading. It tells us very little about whether protected areas are in the right location or are being managed well.
If we’re serious about halting species extinctions within the next five years, we need to change course now. Here are three ways to do that.
Without this shift, we risk meeting our “30 by 30” target while failing to save our most threatened species and ecosystems. That would be a hollow victory.![]()
James Watson, Professor in Conservation Science, School of the Environment, The University of Queensland; Carly Cook, Lecturer Head, Cook Research Group; School of Biological Sciences, Monash University; Michelle Ward, Lecturer, School of Environment and Science, Griffith University, and Ruben Venegas Li, Research fellow, School of Environment, University of Queensland, The University of Queensland
This article is republished from The Conversation under a Creative Commons license. Read the original article.


Goodfellow’s tree kangaroo joey – SWNS / Chester Zoo
Goodfellow’s tree kangaroo with baby joey – SWNS / Chester Zoo

Cyrus the lion in preparation for transport – credit, Turpentine Creek Wildlife Refuge


credit – Adam Kay, Twycross Zoo / SWNS

Shennongjia virgin forest – credit, Evilbish CC BY-SA 3.0
Golden snub-nosed monkeys captured via camera trap – credit, eMammal CC 2.0. via Flickr

Orangutans by Getty Images for Unsplash+
A pearl-bordered fritillary – credit, Devon Wildlife Trust
Wetland habitat creation to benefit water vole – credit, Nottinghamshire Wildlife Trust
Volunteers planting marsh violet – credit, Neil Harris, National Trust images