By Traci Watson, News.National.geographic.com 5/16/17
Smaug is in peril. But it’s not
Smaug the wicked dragon in Tolkien’s The Hobbit that’s under siege. Calamity
has instead beset Smaug giganteus, a spiky lizard that looks exactly like a
miniature dragon—and is now being decimated by poaching and development,
scientists say.
Tolkien’s Smaug is enormous and
fiery. The lizards are neither. They don’t breathe flames, and many are barely
longer than a tube of toothpaste. (But they’re twice as big as closely related
lizards, hence the label “giganteus.”)
Like all self-respecting dragons,
they’re heavily armored. Their bodies bristle with sharp, bony spikes, to the
detriment of jackals and birds of prey—and well-intentioned researchers who
study the lizards in South Africa’s eastern grasslands, where they live.
“They’ve drawn blood on me many, many, many times,” says Shivan
Parusnath, of the University of the Witwatersrand, in Johannesburg, a
National Geographic grantee and author of a new study of the creatures.
Effective though lizard body
armor is against predators, it does nothing to protect Smaug giganteus against
the roads and farms that have carved up the land. Or against local people who
kill the animals to make a traditional love potion. Or reptile fanciers who
prize them for their ferocious beauty, fueling illegal collecting.
“The species is undergoing a very
rapid loss,” Parusnath says. Conservation scientist Mark Auliya, of the Helmholtz
Centre for Environmental Research in Germany, who isn’t affiliated with the new
study, agrees: Smaug giganteus “will be brought to the extinction within the
next five to 10 years if nothing happens,” he asserts.
Also known as sun gazers for
their habit of seeming to look into the sun as they bask, the lizards have
eluded detailed scientific study for decades. So Parusnath and colleagues set
out to do a thorough inventory, visiting nearly 80 sites where their burrows
had been seen in the 1970s.
They learned that the animals
today occupy roughly 450 square miles of South Africa—that’s about a third of
their previous range, Auliya says. Even worse, a third of the sites where the
lizards lived in 1978 are now devoid of the reptiles, the scientists
report in the Journal for Nature Conservation.
Instead of dragons, they found
signs of dragon-snatching: snares, hooked wires, and burrows that had been dug
open. The researchers chose one burrowing site for intensive long-term study,
but late last year they found many of the burrows there dug up, the residents
gone. “That hit me quite hard,” Parusnath says.
Permits to catch wild sun gazers
are hard if not impossible to obtain from the government because of concerns
over the lizard’s numbers, and no one has yet figured out a technique for
breeding the animals in captivity. Despite this, exports of the lizards
declared to the government have soared, from 357 for the decade from 1985 and
1994 to 660 between 2005 and 2014.
That leads Parusnath and others
to believe that poachers are nabbing wild lizards, which are then “laundered”
and declared captive-bred in export
documents. (Parusnath is now working on genetic techniques to distinguish
between captive-bred and wild-caught lizards.)
Researchers don't know how many
of the lizards leave the country without being reported to the authorities, but
it’s clearly not zero. In August 2016, for instance, Dutch officials found 19
sun gazers in the suitcase of a man flying from South Africa through Amsterdam
to a reptile fair in Germany.
Websites for reptile fanciers
carry both “Wanted” and “For Sale” ads for Smaug giganteus, and Parusnath says
the underground trade is probably “much bigger” than the reported trade.
It’s equally impossible to put
numbers on the animals captured and killed for sale in South Africa’s muthis,
or medicine markets. By tradition a woman who eats powdered sun gazer will
tolerate her partner taking more lovers.
The new study pegs the number of
mature sun gazers at roughly 680,000, which sounds like a lot of lizards, but
the animals mature slowly, have only a few babies at a time, and reproduce only
every few years. The study recommends that Smaug giganteus remain classified as
“vulnerable” in the listings of the International Union for Conservation of
Nature, which monitors the status of wildlife around the globe.
“Unfortunately the combination of
those three things makes the species very vulnerable,” says Ernst Baard,
executive director for biodiversity support at CapeNature, the biodiversity agency of
South Africa’s Western Cape province.
To help conserve the lizards,
researchers are enlisting landowners to declare voluntary reserves for them and
to report signs of poaching.
Another option: prohibiting all
legal exports. But that, Parusnath notes, might make unscrupulous collectors
crave them even more.
Seeing “these beautiful animals
taken from the wild to sit in somebody’s glass tank in Japan or the USA,”
Parusnath says, “you wonder to yourself, what’s the point?”
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