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What is biodiversity and how are we protecting it?

 

Baby Amur leopard also known as the Manchurian leopard, at the Parc des felins, in Nesles, south-eastern Paris.

Amur leopards are one of the most endangered species in the world


Targets to reverse the decline of biodiversity by 2030 may be missed without urgent action, according to a new report.

This goal was a key part of the UN global summit on biodiversity held in December 2022.

Nearly a third of all monitored species are currently endangered due to human activities.

Preserving the genetic diversity of ancient trees

Even as we discover the incredible benefits of the world's most ancient trees, we are losing them to climate change.

In 2005, several of the centuries-old ponderosa pine trees on my 15 acres (0.06 sq km) of forest in the northern Rocky Mountains in Montana suddenly died. I soon discovered they were being brought down by mountain pine beetles, pernicious killers the size of the eraser on a pencil that burrow into the tree.

The next year the number of dying trees grew exponentially. I felt powerless and grief-stricken as I saw these giant, sky-scraping trees fading all around me, realising there was nothing I could do to stop it.

While the native bugs were the proximate cause, the underlying reason for the unprecedented mortality in my home state and throughout the Rockies was that winters had stopped getting really cold. When I first moved to Montana in the late 1970s, temperatures of -34C (-30F) or even below -40C (-40F) were common in winter, sometimes for weeks at a time. The coldest temperature on record in Montana is –57C (-70F). These days wintertime minimum temperatures rarely get below -18C (0F) or so. If they do, it is usually just for a day or two. That's not nearly cold enough to kill pine beetles, which make their own natural antifreeze.

World's wilderness reduced by a tenth since 1990s - 2015

wilderness lost from 1993 to 2015 worldwide
wilderness lost from 1993 to 2015 worldwide

A tenth of the world's wilderness has vanished in the past two decades, research shows. New maps show "alarming losses" of pristine landscapes, particularly in South America and Africa, according to World Conservation Society scientists. They argue in Current Biology that wild areas are ignored in international conservation agreements, despite their ecological and cultural value.

About 20% of the world's land area is classed as wilderness. By this, scientists mean landscapes free of large-scale human disturbances such as housing, development and industry. The majority of these untouched spaces are found in North America, north Asia, north Africa and Australia. They are often home to indigenous peoples as well as endangered plants and animals.

James Watson of the University of Queensland, Australia, and the US Wildlife Conservation Society in New York said wilderness areas "are completely ignored in environmental policy". "International policy mechanisms must recognise the actions needed to maintain wilderness areas before it is too late," said Prof Watson. "We probably have one to two decades to turn this around."

Rubber plantations destroying biodiversity and forcing habitat loss for endangered birds, bats and primates in Southeast Asia

The global demand for rubber tyres is threatening protected forests in Southeast Asia, according to a study. Tropical forests are being cleared for rubber plantations, putting endangered birds, bats and primates at risk, say UK researchers. By 2024, up to 8.5 million hectares of new rubber plantations will be needed to meet demand, they report in Conservation Letters. This could have a "catastrophic" impact on wildlife, they warn. Species such as the endangered white-shouldered ibis, yellow-cheeked crested gibbon and clouded leopard could lose precious habitat, said the team led by Eleanor Warren-Thomas, from the School of Environmental Sciences at the University of East Anglia. Also, the banteng, which is found in the forests of Cambodia. There's a lot we can do as scientists and the public to make rubber production more wildlife-friendly. "The tyre industry consumes 70% of all natural rubber grown, and rising demand for vehicle and aeroplane tyres is behind the recent expansion of plantations. But the impact of this is a loss of tropical biodiversity," she said. "We predict that between 4.3 and 8.5 million hectares of new plantations will be required to meet projected demand by 2024. This will threaten significant areas of Asian forest, including many protected areas." Eight-point-five million hectares is about the size of the land area of Austria. Biodiversity concern Rubber is the most rapidly expanding tree crop within mainland Southeast Asia.

England's Fens are habitat for rare wildlife and biodiversity

Fens are rare wildlife 'hotspot'

Ouse washes

 

Ouse Washes is a Special Area of Conservation

 

The Fens are home to 25% of Britain's rarest wildlife and 13 globally rare species, according to a new report.

Researchers from the University of East Anglia studied over one million records collected by scientists and amateur enthusiasts that date back to 1670. The Fens Biodiversity Audit details evidence of 13,474 species of plants, insects, birds, fish and mammals. The area covered 3,800 km sq, spanning the Fenlands of Norfolk, Suffolk, Cambridgeshire and Lincolnshire. Christopher Panter, an ecologist from the school of Environmental Sciences at the University of East Anglia and one of the authors of the audit, commented: "One of the most surprising things was that, despite it being a very large area, most of the area was previously unrecorded."

 
Fantastic fens

Dolomedes fen raft spider
Predatory Great Raft Spider - East Anglica.

Data was collected from well-known fen sites such as

Conservation targets need billions in funding

Scientists say billions required to meet conservation targets

 

Ethiopian bush crow

 

The most threatened species tend to be relatively cheap to save because of small range sizes.

 

Reducing the risk of extinction for threatened species and establishing protected areas for nature will cost the world over $76bn dollars annually. Researchers say it is needed to meet globally agreed conservation targets by 2020. The scientists say the daunting number is just a fifth of what the world spends on soft drinks annually. And it amounts to just 1% of the value of ecosystems being lost every year, they report in the journal Science.

“Nature just doesn't do recessions, we're talking about the irreversible loss of unique species and millions of years of evolutionary history” Donal McCarthy RSPB

Marine Protected Areas Increase in last decade

Marine Protected Areas increase 10-fold in a decade

 

Diego Garcia atoll

 

The reserve around the Chagos islands is the world's largest, protecting a notoriously rich ecosystem.

 

A 10-fold rise in Marine Protected Areas has been recorded over a decade.

English translation unavailable for Biodiversity and language diversity and loss linked..

Project to protect rare Burmese monkey gets new funding

Burmese snub-nosed monkey photographed by a camera trap
Burmese snub-nosed monkey photographed by a camera trap in May 2011
 

A conservation project to help

protect the rare Burmese snub-nosed monkey is one of 33 to get a share of UK Government funding. The species was photographed for the first time last year. The project, led by Fauna and Flora International (FFI), will try to establish how many of the monkeys are left and how best to protect them. The money comes from a long-term scheme called the Darwin Initiative. The Burmese snub-nosed monkey was described scientifically for the first time in 2010 from a dead specimen collected by a local hunter. In May 2011 researchers working in northern Burma captured the first pictures of the species in its natural habitat. A team from FFI, Biodiversity and Nature Conservation Association (Banca), and People Resources and Conservation Foundation (PRCF) took the images using camera traps.

 
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