The link below is to an article that indicates good news from India, with Rhino numbers rising.
The Chinese government will be reopening the nation’s domestic rhino horn trade, overturning a ban that has stood since 1993. An outcry since the announcement has led to the postponement of the lifting of the ban, which currently remains in place.
The case for introducing rhinos to Australia
The directive, if instituted, would require that rhino horn be sourced sustainably from farmed animals and that its use is limited to traditional Chinese medicine, scientific and medical research, preserving antique cultural artefacts, and as educational materials.
The announcement has been widely condemned. The United Nations Environmental Program called it “alarming”. But done carefully and correctly, and with necessary international consultation, it doesn’t have to add to the threat to rhinos. Indeed, it could even support rhino conservation.
Rhino horns regrow and can be sustainably and humanely harvested from live animals. Those arguing for legalisation say that a well-regulated trade could be a source of funding for expensive rhino conservation. It could also help reduce poverty and support development around protected areas.
A legal trade could also provide an alternative supply of horns, where income goes to legitimate conservation and development efforts, rather than to criminals, which is currently the case.
Rhino horn for medicinal use
The directive from Beijing stipulates that rhino horn for medicinal use must come from rhinos bred specifically outside of zoos (such as at dedicated horn-farming facilities). The ground-up horn powder would then be certified under a scheme developed by a coalition of Chinese regulatory agencies.
These agencies should draw from China’s experience regulating the medicinal use of pangolin scales to make sure poached horn does not infiltrate the legal marketplace. Though strictly controlled since 2008, illegal pangolin products continue to be seized frequently throughout China.
According to the directive, the medicinal use of rhino horn will be restricted to treating urgent, serious and rare diseases. This is consistent with what traditional Chinese medicine practitioners see as the appropriate application of rhino horn. Strict guides for clinical application will be needed to prevent misuse and overuse, particularly given the length of time that rhino horn has been unavailable to law-abiding clinicians.
Existing rhino horn stocks
Beyond medicine, the directive stipulates that people who already own horns will be able to declare their stocks. The government will then issue identification and certification records. After this, the horns must be sealed and stored safely, and not traded under any circumstances, barring gift-giving and inheritance.
This part of the directive is particularly concerning, as such a scheme will be complex, potentially giving owners of poached rhino horns smuggled into China a get-out-of-jail-free card. Lessons should be learned from the ivory trade in Hong Kong, where poached ivory has been laundered into legal stocks thanks to inadequate record-keeping and lax enforcement.
This section of the directive also raises concerns about the development of a socially accepted practice of gifting rhino horn akin to that of Vietnam. There, rhino horn has been found to be given as a gift for terminally ill family members and in business settings, where horns are offered as bribes to government officials. Strict enforcement will essential if China is to make sure illegal trading under the guise of gifts is not to spread.
Working with China
China will have to work with countries where rhinos live, including range states in both Asia and in Africa, as well as other rhino conservation stakeholders around the world. Swaziland and South Africa have previously proposed legalising the international trade in horn as a mechanism to fund and bolster conservation efforts.
Domestic trade in horn is legal in South Africa, and China and South Africa will have to coordinate to make sure their domestic marketplaces support rhino conservation and don’t enable transnational laundering and trade.
Beijing’s decision has certainly attracted immediate and fierce criticism from some conservation and animal welfare organisations. This criticism is exacerbated by different moral perspectives. Some people see the sale and consumption of rhino horn to fund conservation as morally repulsive. For others, it is legitimate and pragmatic.
Whichever side of the debate you stand on, the priority should be conservation outcomes and making sure that China’s newly legalised domestic horn trade strengthens rather than dangerously undermines rhino protection efforts. Rhino conservationists will need to find common ground with Beijing. This requires an appreciation of different cultural and moral values, and the use of evidence on how to minimise risks to rhino under the directive.
Responding to the widespread criticism, Chinese officials clarified that the implementation of the directive will be postponed. The government has also launched a short-term enforcement drive against illegal trading of rhino horn, which will run until the end of the year.
While heightened enforcement actions are welcome, it indicates that China can do much more to tackle illegal wildlife trade. China must strictly enforce its own regulations once its domestic horn trade has been opened.
Postponing implementation gives Beijing time to develop a detailed and robust set of regulations. Now is the time for rhino range states, conservation scientists and concerned groups around the world to work with Beijing so that the impending domestic horn trade in China can be a positive for rhino conservation.
Hubert Cheung, PhD Candidate in Conservation Biology, The University of Queensland; Duan Biggs, Senior Research Fellow Social-Ecological Systems & Resilience, Griffith University, and Yifu Wang, PhD Candidate, Department of Geography, University of Cambridge
Rhinos in Australia might seem like an insane proposition – after all, we’ve had historically bad luck with introduced species. But on reflection it’s not quite as crazy as it sounds.
There are five species of rhinoceros in the world: two in Africa and three in Asia.
The world of all five species is being rapidly destroyed and shredded, their savanna and forest habitats sliced apart by clearings, fences, roads, and other obstructions.
Even worse, they are being slaughtered by armed poachers for their valuable rhino horn, which is falsely thought to have aphrodisiac or curative properties, for maladies ranging from hangovers to cancer.
Vietnam and China are overwhelmingly the biggest consumers of rhino horn. Chinese citizens and even diplomats working in Africa and Asia have reportedly engaged in the illegal smuggling of rhino horn and other wildlife products.
Rhinos are relicts of a great megafauna that until recently dominated the planet. Today, they are some of the most endangered animals on Earth.
For instance, the Sumatran Rhinoceros is so rare that biologists refuse to disclose where it still lives, to avoid tipping off poachers – beyond confirming it persists in small pockets of northern Sumatra, Indonesia.
The Javan Rhinoceros was once the most abundant rhino species in Asia, ranging from Southeast Asia to India and China. But today it is one of the rarest mammals on Earth, with just 60 animals surviving in far western Java, Indonesia.
In Africa, White Rhinos and Black Rhinos are having mixed fortunes – but mostly bad.
The Black Rhino was once widely distributed across eastern and southern Africa, but its numbers have dramatically fallen and nearly half of its unique subspecies have vanished.
The White Rhino has two distinct subspecies. The southern subspecies collapsed to just 20 individuals a century ago, but with dedicated protection it has made an astounding comeback – to around 20,000 animals today, by far the most numerous of all rhinos.
But the northern White Rhino is virtually gone. The last male died on March 19, and only two females are alive in captivity.
In recent weeks scientists have used frozen sperm and harvested eggs to create a few test-tube embryos, which they hope to implant into a southern female in a last-ditch effort to stave off the northern subspecies’ demise.
All of this means that most of the nations with rhino populations are having profound difficulties maintaining them. Not that it’s easy. Rhinos are big, near-sighted, and rather predictable in their habits – easy prey for poachers.
They live in developing nations with many impoverished people, where lethal weapons are frighteningly common and the rule of law is precarious.
And they have horns worth up to US$300,000 each.
In efforts to staunch the slaughter, some nations are de-horning their rhinos, or assigning guards to watch over them day and night, like heavily armed sheep herders.
South Africa is even treating rhino-horn powder with powerful poisons to help scare off illicit consumers.
Lynn Johnson, an enterprising Melbourne businesswoman, has raised tens of thousands of dollars to place ads in Vietnamese magazines and newspapers, warning about the poisons and decrying the rhino slaughter.
Such measures are certainly helping, but it’s a fraught battle. Roads are proliferating dramatically in developing nations, increasing access to ecosystems for poachers. And human populations and the many pressures they bring are growing rapidly in Africa and Asia.
Some experts believe that captive breeding is the most viable near-term solution, especially for the distressingly rare Sumatran and Javan Rhinos. Maintaining them in zoos or breeding facilities keeps alive the hope that they might one day be reintroduced to the wild.
A crazy idea?
But why not introduce rhinos to Australia? Before you laugh out loud, consider this.
Australia has abundant savannas, woodlands and rainforests that the various species of rhinos need to survive. And rhinos are generalist grazers or browsers, meaning they are not especially picky about what they eat.
Australia has a strong rule of law and minimal wildlife poaching, with huge numbers of ecotourists who would surely be keen to see spectacular rhinos. One group, the Australian Rhino Project, is already trying to establish a White Rhino population in Australasia.
But while I might be crazy, I’m not stupid.
I am not suggesting that rhinos be allowed to roam free in Australia. Under such circumstances they could degrade native ecosystems and even pose a danger to people. Rather, rhinos should be contained in cattle stations or other enclosed areas.
And I am not suggesting that harbouring rhinos in Australia would mean reducing efforts to save them in the wild or conserve their crucial habitats.
Indeed, preserving rhinos without protecting their native ecosystems is like saving a few shiny baubles from Christmas, while throwing away the Christmas tree that held them.
Rather, the idea would be to establish semi-wild or managed populations that could buffer rhinos against global extinction, and at the same time provide public education and raise money.
Any effort that failed to provide revenue to conserve wild rhinos and their native habitat – especially if it competed for funding with current conservation initiatives – would be a perverse and undesirable outcome.
Of course, when it comes down to it, introducing rhinos to Australia is a pretty wild idea. Maybe my tongue is in my cheek, and I’m just trying to get other tongues wagging about the desperate need for rhino conservation.
But whatever we do about rhinos, it’s clear that desperate times call for desperate measures.
Two days ago, the last male northern white rhino (Ceratotherium simum cottoni) died. His passing leaves two surviving members of his subspecies: both females who are unable to bear calves.
Even though it might not be quite the end of the northern white rhino because of the possibility of implanting frozen embryos in their southern cousins (C. simum simum), in practical terms, it nevertheless represents the end of a long decline for the subspecies. It also raises the question: how many individuals does a species need to persist?
Fiction writers have enthusiastically embraced this question, most often in the post-apocalypse genre. It’s a notion with a long past; the Adam and Eve myth is of course based on a single breeding pair populating the entire world, as is the case described in the Ragnarok, the final battle of the gods in Norse mythology.
This idea dovetails neatly with the image of Noah’s animals marching “two by two” into the Ark. But the science of “minimum viable populations” tells us a different story.
No inbreeding, please
The global gold standard used to assess the extinction risk of any species is the International Union for the Conservation of Nature (IUCN) Red List of Threatened Species.
The Red List’s assessment criteria are based on the so-called “50/500 rule”. This states that to avoid inbreeding depression (the loss of “fitness” due to genetic problems), an effective population size of at least 50 individuals in a population is required.
To avoid eroding evolutionary potential (the ability of a population to evolve to cope with future environmental changes), an effective population of at least 500 is required.
The key here is that little qualifier “effective”. This refers to individuals who can breed with each other without causing inbreeding or loss of genetic diversity. A family unit, for example, might have only one or two reproductively effective members. But they would also need another, unrelated, family unit nearby for their offspring to reproduce with.
That means that the number of effective individuals is lower than the total population. On average, the ratio is about 0.1 to 0.2; that is, one effective individual (genetically speaking) for every five to ten members of the population.
This also assumes that the breeding pairs are matching up based on an optimal genetic basis – what geneticists call an “idealised population”.
In a perfect world, a breeding pair of animals would be completely unrelated and would have no chance of producing babies with any genetic defects caused by inbreeding. However, real populations rarely behave like this, so some pairs have a certain amount of relatedness. As the population gets smaller, the chance of breeding with a relative increases, which leads to more frequent and severe inbreeding.
Repopulating the world after the apocalypse
So let’s do the maths. Fifty effective individuals – the ICUN standard for avoiding inbreeding – equals a total population of 250 to 500. This means that, in a hypothetical apocalypse, humanity would need a lot more than a handful of survivors to repopulate effectively.
However, to retain evolutionary potential – to remain genetically flexible and diverse – the IUCN criteria suggest we would need at least 500 effective individuals. That requires a population of 2,500 to 5,000.
Some preliminary results emerging from ongoing research at the Centre of Excellence for Australian Biodiversity and Heritage appear to confirm this. Using both ancient DNA techniques and palaeo-demographic models, we have estimates of a minimum effective population size for Aboriginal Australians when they first appeared of about 250. This means at least several thousand had to arrive around the same time to manage to colonise the entire continent successfully.
Of course, not every species has the same ratio of effective to total population size, and not all populations necessarily need 5,000 individuals to survive. But without being able to measure the true ratio for a specific population, it helps to default to the average situation.
The idea that 50 individuals is enough to avoid inbreeding depression comes largely from laboratory populations that probably do not describe the situation for populations living in wild environments.
In species as varied as houseflies and pinkfairies, populations substantially greater than 50 individuals still succumb to inbreeding depression. So, in many cases, 50 effective individuals is in fact too low to ensure no inbreeding depression occurs. It may be that 100 effective individuals is closer to the true minimum, without even considering how populations respond to evolutionary challenges.
So, sensational analogies about the apocalypse aside, do human beings follow the same rule? We aren’t entirely sure, but evidence suggests that most species in vastly different groups roughly follow the same trend.
An emerging rule of thumb is that when a population starts to dip below several thousand individuals, it has a high likelihood of going extinct.
Rhinos are one of the most iconic symbols of the African savanna: grey behemoths with armour plating and fearsome horns. And yet it is the horns that are leading to their demise. Poaching is so prolific that zoos cannot even protect them.
Some people believe rhino horns can cure several ailments; others see horns as status symbols. Given horns are made of keratin, this is really about as effective as chewing your finger nails. Nonetheless, a massive increase in poaching over the past decade has led to rapid declines in some rhino species, and solutions are urgently needed.
One proposal is to take 80 rhinos from private game farms in South Africa and transport them to captive facilities in Australia, at a cost of over US$4m. Though it cannot be denied that this is a “novel” idea, I, and colleagues from around the world, have serious concerns about the project, and we have now published a paper looking into the problematic plan.
The first issue is whether the cost of moving the rhinos is unjustified. The $4m cost is almost double the anti-poaching budget for South African National Parks ($2.2m), the managers of the estate where most white rhinos currently reside in the country.
The money would be better spent on anti-poaching activities in South Africa to increase local capacity. Or, from an Australian perspective, given the country’s abysmal record of mammal extinctions, it could go towards protecting indigenous species there.
In addition, there is the time cost of using the expertise of business leaders, marketeers and scientists. All could be working on conservation issues of much greater importance.
Bringing animals from the wild into captivity introduces strong selective pressure for domestication. Essentially, those animals that are too wild don’t breed and so don’t pass on their genes, while the sedate (unwild) animals do. This is exacerbated for species like rhinos where predation has shaped their evolution: they have grown big, dangerous horns to protect themselves. So captivity will likely be detrimental to the survival of any captive bred offspring should they be returned to the wild.
It is not known yet which rhino species will be the focus of the Australian project, but it will probably be the southern white rhino subspecies – which is the rhino species least likely to go extinct. The global population estimate for southern white rhinos (over 20,000) is stable, despite high poaching levels.
This number stands in stark contrast to the number of northern white (three), black (4,880 and increasing), great Indian (2,575), Sumatran (275) and Javan (up to 66) rhinos. These latter three species are clearly of much greater conservation concern than southern white rhinos.
There are also well over 800 southern white rhinos currently held in zoos around the world.
With appropriate management, the population size of the southern white is unlikely to lose genetic diversity, so adding 80 more individuals to zoos is utterly unnecessary. By contrast, across the world there are 39 other large mammalian herbivore species that are threatened with extinction that are far more in need of conservation funding than the five rhino species.
Rhinos inhabit places occupied by other less high profile threatened species – like African wild dogs and pangolins – which do not benefit from the same level of conservation funding. Conserving wildlife in their natural habitat has many benefits for the creatures and plants they coexist with. Rhinos are keystone species, creating grazing lawns that provide habitats for other species and ultimately affect fire regimes (fire frequency and burn patterns). They are also habitats themselves for a range of species-specific parasites. Abandoning efforts to conserve rhinos in their environment means these ecosystem services will no longer be provided.
Finally, taking biodiversity assets (rhinos) from Africa and transporting them to foreign countries extends the history of exploitation of Africa’s resources. Although well-meaning, the safe-keeping of rhinos by Western countries is as disempowering and patronising as the historical appropriation of cultural artefacts by colonial powers.
Conservation projects are ultimately more successful when led locally. With its strong social foundation, community-based conservation has had a significant impact on rhino protection and population recovery in Africa. In fact, local capacity and institutions are at the centre of one of the world’s most successful conservation success stories – the southern white rhino was brought back from the brink, growing from a few hundred in South Africa at the turn of the last century to over 20,000 throughout southern Africa today.
In our opinion, this project is neo-colonial conservation that diverts money and public attention away from the fundamental issues necessary to conserve rhinos. There is no evidence of what will happen to the rhinos transported to Australia once the poaching crisis is averted, but there seems nothing as robust as China’s “panda diplomacy” where pandas provided to foreign zoos remain the property of China, alongside a substantial annual payment, as do any offspring produced, for the duration of the arrangement.
With increased support, community-based rhino conservation initiatives can continue to lead the way. It is money that is missing, not the will to conserve them nor the expertise necessary to do so. Using the funding proposed for the Australian Rhino Project to support locally-led conservation or to educate people to reduce consumer demand for rhino horn in Asia seem far more acceptable options.
In Kaziranga, a national park in north-eastern India, rangers shoot people to protect rhinos. The park’s aggressive policing is, of course, controversial, but the results are clear: despite rising demand for illegal rhino horn, and plummeting numbers throughout Africa and South-East Asia, rhinos in Kaziranga are flourishing.
Yet Kaziranga, which features in a new BBC investigation, highlights some of the conflicts that characterise contemporary conservation, as the need to protect endangered species comes into contact with the lives and rights of people who live in and around the increasingly threatened national parks. India must balance modernisation and development with protections for the rights of local people – all while ensuring its development is ecologically sustainable.
To understand what’s at stake in Kaziranga, consider these three crucial issues:
1. The militarisation of conservation
The BBC feature shows park rangers who have been given the license to “shoot-on-sight”, a power they have used with deadly effect. In 2015 more than 20 poachers were killed – more than the numbers of rhino poached that year.
The programme accuses the rangers of extra-judicial killings of suspected rhino poachers. This resonates with a wider trend in the use of violence in defence of the world’s protected areas and the growing use of military surveillance technologies to support the efforts of conservation agencies.
In India, the Forest Department, which is responsible for the protection of wildlife sanctuaries and national parks, has always been a “uniformed” service. Rangers wear military-style khakis, are allowed to carry arms, and have powers to prosecute offenders. Recently, the government allowed them to use drones as an anti-poaching measure in Kaziranga.
To justify such escalation and its talk of a “war” against poaching, the government cites the growing power and sophistication of the crime syndicates involved in the illegal wildlife trade. However, as with all wars, a serious conflict over rhinos risks collateral damage. The worry is that increased militarisation is not conducted within strict legal limits or subject to judicial scrutiny. The BBC alleges that such checks and balances were not in place in Kaziranga.
2. The rights of local and indigenous populations
The BBC story also points to the growing conflict in and around Kaziranga between the interests and rights of local and indigenous people and the need to protect threatened species. Groups including Survival International – which features in the BBC story – claim that well-meaning conservation projects have denied and undermined the rights of indigenous groups around the world. The group calls for these rights to be placed at the heart of modern approaches to conservation – and most enlightened environmentalists now agree. It’s increasingly hard to look at conservation without also considering human rights and social issues.
The context for these struggles in India is the colonial legacy of forest settlement, which reserved forests for the imperial state, but failed to take account of the rights of people who already lived there. This injustice was recognised in 2006, in landmark legislation known colloquially as the Forest Rights Act, which restored both individual and community rights based on evidence of historic access and use.
Yet there remains significant tension between India’s wildlife conservation lobby, which perceives the Forest Rights Act as the death-knell for nature, and groups such as Survival International which argue that it is only by recognising the rights of local people that the country’s wildlife will be protected.
3. Can we keep expanding protected areas?
To protect threatened species across the world, conservationists have called for more and more land to be placed under protection. Renowned biologist EO Wilson, for instance, wants us to set aside “half the planet”.
In an unconstrained world, dedicating half the earth to the protection of the most threatened species and the world’s important habitats might seem like a sensible way to avoid the risks of what people fear might trigger the next great extinction. In reality, there are few places left where such a proposal might practically be implemented.
Perhaps nowhere is this more evident than in rapidly developing India. The country already has a population of 1.3 billion – and it aspires to both develop as a global economic powerhouse and lift its poorest people out of poverty. This development requires land and resources, with little space left for nature.
Plans to double the size of Kaziranga means villagers are being displaced with little due process and there are documented cases of violence and even death. This is a violent “green grab”, where land is usurped for ostensibly progressive environmental objectives, but which results in the dispossession of some of the most vulnerable people on this planet.
Kaziranga illustrates the dilemmas of contemporary conservation. If it is to be successful, environmentalism in India must be seen as part of the changing social and economic context, and not set itself up in opposition to these wider trends.
Conservation needs to recognise the need to build bridges, sometimes with its fiercest critics. While Kaziranga is in many ways a remarkable conservation success, its costs are considerable. The forces driving the world to overuse its resources haven’t gone away, and finding sustainable futures for both people and the planet requires coalitions that work together – let’s begin with Kaziranga.