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Earth’s Largest Freshwater Creatures at Risk of Extinction

           

A manatee swims in blue-green algae, which has invaded Florida's waterways and put freshwater species at risk. PHOTOGRAPH BY PAUL NICKLEN, NAT GEO IMAGE COLLECTION

CLICK HERE - STUDY - The global decline of freshwater megafauna

nationalgeographic.com - by Stefan Lovgren - August 8, 2019

SOME HAVE SURVIVED for hundreds of millions of years, but many of the world’s freshwater megafauna—including sumo-sized stingrays, colossal catfish, giant turtles, and gargantuan salamanders—may soon find themselves on the brink of extinction, according to a new study published.

For the first time, researchers have quantified the global decline of freshwater megafauna—including fish, reptiles, amphibians, and mammals—and the results paint a grim picture. In four decades since 1970, the global populations of these freshwater giants have declined by almost 90 percent—twice as much as the loss of vertebrate populations on land or in the oceans.

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World's Vertebrate Population Dropped by an Average of 60 Percent Since 1970, WWF Says

CLICK HERE - WWF - Living Planet Report 2018: Aiming Higher

"There cannot be a healthy, happy and prosperous future for people" without biodiversity, the report warns.

nbcnews.com - by Rachel Elbaum - October 30, 2018

The population of the planet's vertebrates has dropped an average of 60 percent since 1970, according to a report by the WWF conservation organization.

The most striking decline in vertebrate population was in the tropics in South and Central America, with an 89 percent loss compared to 1970. Freshwater species have also significantly fallen — down 83 percent in that period.

The Living Planet Index, provided by the Zoological Society of London (ZSL) and included in the WWF Living Planet 2018 report, tracked the population of mammals, birds, fish, reptiles and amphibians around the world between 1970 and 2014, the latest year for which data was available.

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Outbreak of African Swine Fever Threatens to Spread from China to Other Asian Countries

           

There is no effective vaccine to protect swine from the disease.

FAO urges regional collaboration including stronger monitoring and preparedness measures

fao.org - August 28, 2018

The rapid onset of African Swine Fever (ASF) in China, and its detection in areas more than one thousand kilometres apart within the country, could mean the deadly pig virus may spread to other Asian countries anytime, the UN's Food and Agriculture Organization (FAO) warned today. 

There is no effective vaccine to protect swine from the disease. And, while the disease poses no direct threat to human health, outbreaks can be devastating with the most virulent forms lethal in 100 percent of infected animals.

(CLICK HERE - READ COMPLETE ARTICLE)

ALSO SEE RELATED ARTICLE HERE - 'It’s not if, it’s when': the deadly pig disease spreading around the world

 

 

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Bat Cave Solves Mystery of Deadly SARS Virus — and Suggests New Outbreak Could Occur

           

Researchers analysed strains of SARS virus circulating in horseshoe bats, such as this one (Rhinolophus sinicus), in a cave in Yunnan province, China.  Credit: Libiao Zhang/Guangdong Institute of Applied Biological Resource

Chinese scientists find all the genetic building blocks of SARS in a single population of horseshoe bats.

CLICK HERE - RESEARCH - Discovery of a rich gene pool of bat SARS-related coronaviruses provides new insights into the origin of SARS coronavirus

nature.com - by David Cyranoski - December 1, 2017

After a detective hunt across China, researchers chasing the origin of the deadly SARS virus have finally found their smoking gun. In a remote cave in Yunnan province, virologists have identified a single population of horseshoe bats that harbours virus strains with all the genetic building blocks of the one that jumped to humans in 2002, killing almost 800 people around the world. 

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Earth's Sixth Mass Extinction Event Under Way, Scientists Warn

Researchers talk of ‘biological annihilation’ as study reveals billions of populations of animals have been lost in recent decades

           

Earth already in midst of sixth mass extinction, scientists say

CLICK HERE - RESEARCH - PNAS - Biological annihilation via the ongoing sixth mass extinction signaled by vertebrate population losses and declines

theguardian.com - by Damian Carrington - July 10, 2017

A “biological annihilation” of wildlife in recent decades means a sixth mass extinction in Earth’s history is under way and is more severe than previously feared, according to research.

Scientists analysed both common and rare species and found billions of regional or local populations have been lost . . . 

 . . . “All signs point to ever more powerful assaults on biodiversity in the next two decades, painting a dismal picture of the future of life, including human life” . . . 

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Brazil Yellow Fever Outbreak Spawns Alert: Stop Killing the Monkeys

Yellow fever is threatening species at risk of extinction, like the golden lion tamarin, which lives in the forests of Rio de Janeiro State. Credit Dado Galdieri for The New York Times

Image: Yellow fever is threatening species at risk of extinction, like the golden lion tamarin, which lives in the forests of Rio de Janeiro State. Credit Dado Galdieri for The New York Times

nytimes.com - May 2nd 2017 - Simon Romero

As fears spread in Brazil over the resurgence of yellow fever, health officials are issuing a warning: Stop killing the monkeys.

Some assailants clubbed monkeys to death in panicked reactions to Brazil’s most alarming outbreak in decades of a virus that haunted the country in the 19th and early 20th centuries. Authorities found other monkeys dead with fractured skulls after having been being attacked with stones. 

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Why Killer Viruses Are On The Rise

       

Once called the "Dutchmen" because of their large noses and large bellies, proboscis monkeys live only in Borneo. Ecosystems that have a lot of diverse animals, like this monkey, also tend to have a lot of diverse viruses.  Charles Ryan

npr.org - by Michaeleen Doucleff and Jane Greenhalgh - February 14, 2017

The next troubling outbreak could come from a rain forest . . . And a big reason why: all the crazy animals that live here.

. . . Wild animals are now refugees. They have no home. So they come live in our backyards. They pee on our crops. Share our parks and playgrounds. Giving their viruses a chance to jump into us and make us sick.

"So it's really the human impact on the environment that's causing these viruses to jump into people," Olival says.

And cause an outbreak? I ask. Or a pandemic, says Olival.

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Climate Changing 'Too Fast' for Species

           

Tropical species are thought to be particularly vulnerable.  Thinkstock

CLICK HERE - STUDY - Rates of change in climatic niches in plant and animal populations are much slower than projected climate change

bbc.com - by Helen Briggs - November 23, 2016

Many species will not be able to adapt fast enough to survive climate change, say scientists.

A study of more than 50 plants and animals suggests their ability to adapt to changes in rainfall and temperature will be vastly outpaced by future climate change.

Amphibians, reptiles and plants are particularly vulnerable, according to US researchers.

And tropical species are at higher risk than those in temperate zones.

(READ COMPLETE ARTICLE)

 

 

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