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Date: February 09, 2019 at 08:01:07
From: Eve, [DNS_Address]
Subject: Humans Are Eating Most of Earth's Largest Animals to Extinction By Bra

URL: https://www.livescience.com/64697-humans-meat-eating-megafauna-extinction.html


Humans Are Eating Most of Earth's Largest Animals to Extinction
By Brandon Specktor, Senior Writer | February 6, 2019 11:37am ET

It's hard to argue that the world is not made more interesting by singing whales the size of
school buses, dinosaur-footed bird monsters that can leap clean over your head or slimy,
cannibal salamanders that grow as large as crocodiles.

Giant animals like these are known as megafauna. Beyond being awesome in every sense
of the word, these mammoth species are crucial to keeping their respective ecosystems
balanced — and, according to a new study, about 60 percent of them are hopelessly
doomed.

In new research published today (Feb. 6) in the journal Conservation Letters, scientists
surveyed the populations of nearly 300 species of megafauna around the world, and saw
some troubling trends emerge. According to the authors, at least 200 species (70 percent)
of the world's largest animals are seeing their populations dwindle, and more than 150 face
the risk of outright extinction.


Humans Are Eating Most of Earth's Largest Animals to Extinction
Megafauna, like African elephants, are not doing so hot.
Credit: Craig Morrison/Shutterstock
It's hard to argue that the world is not made more interesting by singing whales the size of
school buses, dinosaur-footed bird monsters that can leap clean over your head or slimy,
cannibal salamanders that grow as large as crocodiles.

Giant animals like these are known as megafauna. Beyond being awesome in every sense
of the word, these mammoth species are crucial to keeping their respective ecosystems
balanced — and, according to a new study, about 60 percent of them are hopelessly
doomed.

In new research published today (Feb. 6) in the journal Conservation Letters, scientists
surveyed the populations of nearly 300 species of megafauna around the world, and saw
some troubling trends emerge. According to the authors, at least 200 species (70 percent)
of the world's largest animals are seeing their populations dwindle, and more than 150 face
the risk of outright extinction.

The primary threat in most of these cases appears to be human meat consumption.

"Direct harvest for human consumption of meat or body parts is the biggest danger to
nearly all of the large species with threat data available," lead study author William Ripple,
a professor of ecology at the Oregon State University College of Forestry, said in a
statement. "Our results suggest we're in the process of eating megafauna to extinction."
[10 Extinct Giants That Once Roamed North America]

Earth's biggest beasties
"Megafauna" is a broad biological term that can apply to any number of large animals,
equally apt for describing a chunky Australian codfish as a long-dead T. rex. To narrow
down things in their new study, Ripple and his colleagues defined megafauna as any non-
extinct vertebrate above a certain weight threshold. For mammals, ray-finned and
cartilaginous fish (like sharks and whales), any species weighing more than 220 lbs. (100
kilograms) was considered megafauna. For amphibians, birds and reptiles, species
weighing more than 88 lbs. (40 kg) made the cut.

This left the researchers with a list of 292 supersize animals. The list includes a cast of
familiar faces like elephants, rhinos, giant tortoises and whales, as well as some surprise
guests like the Chinese giant salamander — a critically endangered, alligator-size
amphibian that can weight up to 150 lbs. (65.5 kg).

Next, using the IUCN Red List — an international database that assesses the extinction
risks posed to more than 60,000 species — the researchers determined the level of threat
faced by each of their 292 megafauna. They found that 70 percent of their megafauna
sample showed decreasing populations, and 59 percent were threatened with total
extinction.

According to the researchers, that makes megafauna far more vulnerable than all
vertebrate species as a whole, of which 21 percent are threatened with extinction and 46
percent have declining populations. This bias against Earth's largest creatures is "highly
unusual and unmatched" over the last 65 million years of post-dinosaur evolution, the
authors wrote — and humans are likely to blame.

Human problem, human solution
As humans got better at killing from a distance over the past several hundred years,
megafauna have started dying at an increasingly quick rate, the authors wrote. Since the
1760s, nine megafauna species have gone extinct in the wild, all thanks to human over-
hunting and habitat encroachment.

Today, most of the threatened megafauna species face a lethal cocktail of human-induced
dangers, including pollution, climate change and land development. However, the
researchers wrote, the single biggest threat remains harvesting — that is, being hunted
and killed for their meat or body parts.

"Meat consumption was the most common motive for harvesting megafauna for all classes
except reptiles, where harvesting eggs was ranked on top," the researchers wrote in their
study. "Other leading reasons for harvesting megafauna included medicinal use,
unintended bycatch in fisheries and trapping, live trade and various other uses of body
parts such as skins and fins."

This finding will come as sad but not-at-all-surprising news to anyone interested in animal
conservation. It's hard to avoid headlines about sharks being hunted for their fins, African
elephants slaughtered for their ivory or as trophies, or critically endangered rhinos —
including the northern white rhino, of which only two individuals (both female) remain —
killed for their horns.

According to the researchers, establishing legal barriers to limit the trade and collection of
megafauna products is an essential step toward slowing this mass-extinction-in-progress.

Luckily, the world has seen some success with action like this before. In 1982, the
International Whaling Commission adopted a moratorium on commercial whaling, which
nearly 90 countries abide by today. Since then, "many of the largest marine mammals are
in the process of recovering after the global cessation," the authors wrote. "This bold
action required global cooperation and enforcement and has been successful in halting
and reversing extinction threats for most of the great whales."


Responses:
[15813] [15814]


15813


Date: February 14, 2019 at 17:01:33
From: georg, [DNS_Address]
Subject: Re: Humans Are Eating Most of Earth's Largest Animals to Extinction...


primates are suffering also

people who are native to Africa yearn for "bush meat"

and there is a big import market for monkey meat

we used to eat "monkey meat" in the PI and some said it was pig and some said monkey

i shudder to think

they served it on a stick


Responses:
[15814]


15814


Date: February 14, 2019 at 17:45:52
From: Eve, [DNS_Address]
Subject: Re: Humans Are Eating Most of Earth's Largest Animals to Extinction...




It is sad the suffering.

I have read before some time ago about the black market bush
(ape) meat smuggled in to the U.S. and other European countries.
It's been a while since I came across anything new but I expect it
is much the same or worse than it was.

It is an addiction for some though they may not perceive it that
way.


Responses:
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