Species on the brink
Conservation
A report launched at the UN Biodiversity summit in Japan says one-fifth of animal and plant species are under threat of extinction. However, there’s a silver lining. Scientists behind the assessment say there is new evidence this time that conservation projects are having a noticeable global impact, reports Richard Black
One fifth of animal and plant species are under the threat of extinction, a global conservation study has warned. Scientists who compiled the Red List of Threatened Species say the proportion of species facing wipeout is rising.
But they say intensive conservation work has already pulled some species back from the brink of oblivion. The report was launched at the UN Biodiversity Summit in Japan, where governments discussed how to better protect the natural world.
Launched at the UN Convention on Biological Diversity (CBD) meeting, the report says that amphibians remain the most threatened category of animals, with 41 percent of species at risk, while only 13 percent of birds qualify for Red-Listing. The highest losses were seen in Southeast Asia, where loss of habitat as forests are cleared for agriculture, including biofuel crops, is fastest.
“The ‘backbone’ of biodiversity is being eroded,” said the eminent ecologist, Professor Edward O Wilson of Harvard University. “One small step up the Red List is one giant leap forward towards extinction. This is just a small window on the global losses currently taking place.”
However, the scientists behind the assessment – who publish their findings formally in the journal Science – say there is new evidence this time that conservation projects are having a noticeable global impact. “Really focused conservation efforts work when we do them – many island birds are recovering, lots of examples like this,” said Simon Stuart, chair of the Species Survival Commission with the International Union for the Conservation of Nature (IUCN). “We can show for sure that when we focus conservation efforts and really address the threats and put enough money into it, then you see positive results.”
Species that have benefited from such action include three bred in captivity and returned to the wild – the California condor and black-footed ferret of the US, and Przewalski’s horse in Mongolia. The ban on commercial whaling has led to such a swiftly increasing population of humpback whales that they have come off the Red List entirely. Meanwhile, a parallel study, also published in Science, asks where trends of increased risk, but also increased conservation effort, will lead the natural world in future.
Researchers analysed a range of scientific studies and global assessments. Although projections varied, all found that fundamental changes are needed in order to avoid declining populations across many types of plant and animal species.
United front
“There is no question that business-as-usual development pathways will lead to catastrophic biodiversity loss,” said research leader Paul Leadley from the Universite Paris-Sud. “Even optimistic scenarios for this century consistently predict extinctions and shrinking populations of many species.” This picture is, in large part, what the CBD meeting is supposed to prevent.
One of the many debates currently ongoing at the meeting here is what the global target for 2020 should be – to completely halt the loss of biodiversity, or something less ambitious. Dr Leadley’s analysis backs up the view of many that a complete halt is not feasible. But governments do at least appear united in their desire to do something, according to Dr Stuart, one of a large IUCN team monitoring developments here.
“They’ve said that they want to see improvements in status, especially in those species that are most at risk,” he said. “That to us is a very good target – we think it’s achievable with a lot of effort. There doesn’t seem to be much disagreement between countries on that issue – on other issues, yes, but on the species issue they’re pretty solid.” However, on financing for species protection there is a lot of disagreement.
Nagoya Protocol to save the earth
After years of wrangling, most UN member states agreed last Saturday in Japan to set significant new goals to reverse the extinction of plant and animal species. As part of the accord, they also agreed that rich and poor nations would share profits from pharmaceutical or other products derived from genetic material.The negotiations among mostly environment ministers from about 190 countries in Nagoya, Japan, ultimately produced an agreement that had seemed distant just hours before the meeting ended.
The agreement, known as the Nagoya Protocol, sets a goal of cutting the current extinction rate by half or more by 2020. The earth is losing species at 100 to 1,000 times the historical average, according to scientists who call the current period the worst since the dinosaurs were lost.
The new targets include increasing the amount of protected land to 17 percent, from the current figure of about 12.5 percent, and protected oceans to 10 percent, from less than 1 percent. The protocol also includes commitments of financing, still somewhat murky, from richer countries to help poorer nations reach these goals.“We would have liked to see more ambitious targets in protected area goals and the financing,” said Glenn Prickett, the chief external affairs officer for The Nature Conservancy.
A previous and vague agreement in 2002 to substantially reverse the loss of species by 2010 failed to achieve that target.The most significant change was breaking a nearly 20-year impasse over the issue of sharing the benefits of medicines or other products developed from plants or animals.
Neil MacFarquhar, New York Times News Service
