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High  Profil ular derik , menyebabkan  tragedy

Date:

July 13, 1999

Source:

University Of Arkansas

Summary:

Semua di seluruh Amerika , hari-hari terik dari pertengahan Juli-Agustus menandai kemungkinan besar bagi orang-orang  untuk menemukan ular derik , kata  ahli ular Universitas Arkansas Steve Beaupre . Sayangnya , pertemuan tersebut sering berakhir dengan tragedi - untuk ular tersebut .....read more

High-Profile Rattlesnakes Get Bad Rap

Date:

July 13, 1999

Source:

University Of Arkansas

Summary:

All across America, the sweltering days from mid-July to August mark the
most likely times for people to encounter rattlesnakes, says University of
Arkansas rattlesnake expert Steve Beaupre. Unfortunately, such encounters often
end in tragedy — for the rattlesnake.

.......................

FAYETTEVILLE, Ark. — All across America, the sweltering days from mid-July
to August mark the most likely times for people to encounter rattlesnakes, says
University of Arkansas rattlesnake expert Steve Beaupre. Unfortunately, such
encounters often end in tragedy — for the rattlesnake.

"Nine times out of ten, when a person encounters a snake, he or she is
going to kill it," said Beaupre.

When Beaupre sees a rattler, however, he traps it, anesthetizes it and
inserts a fingernail-sized radio transmitter into its body under the skin. Then
he releases the snake back into the wild, and spends the summer tracking its
movement and studying its physiology and behavior at sites in Arkansas, Texas
and Arizona.

Rattlesnakes normally blend into the forest floor, using the leaf cover as
camouflage. They can remain immobile in the same spot for days, waiting for
prey, Beaupre said.

Most people who spend time in the woods have probably stepped right over
rattlesnakes without realizing it, he said. Rattlesnakes tend to hunker down
and avoid human contact.

"The only time you might get into trouble is when you step on
one," he said.

But by mid-July, male rattlesnakes are on the move, looking for mates.

"They have a very high profile when they do that," Beaupre said.
They will cross roads and may travel for miles in hopes of finding a female.

As a result of their amorous preoccupation, many rattlesnakes end up
flattened on highways. And others get shot or hacked to death by people who
fear their bites.

Nationwide about 7,000 people get treated for snake bites each year, and
about 5-10 people die annually from poisonous snake bites. To put these numbers
in perspective, more people die from lightning strikes or bee stings, Beaupre
said. Most, if not all, of the snake-related deaths can be prevented by proper
medical care, he said.

The real danger stems from people’s fear of the animals – and the potential
for eliminating yet another species. The timber rattlesnakes Beaupre studies in
the Ozarks have become extinct in other parts of their range and are protected
by law in almost half the states they can be found in.

Rattlesnakes keep the squirrel, mouse and rat populations in check, each
animal eating up to dozens per year. If the snakes disappear, a delicate
balance will be forever lost.

"Our survival depends upon the biodiversity we live in," Beaupre
said. "That diversity includes more than just the animals that are cuddly
and fuzzy."

People overestimate the chances of snakebite, Beaupre said. He should know.
Every time he walks into his laboratory, the walls echo with the warning rattle
sounds most people fear. But Beaupre and his graduate students, who handle the
animals regularly, have never even been nibbled upon.

Beaupre follows a few simple rules to avoid snake bites: Always look where
you put your hands and feet. Never put your hands and feet where you can’t see.
And never pick up a snake unless you are sure it’s not venomous.

Beaupre follows the rattlesnakes in their forest treks, studying what they
eat, when they mate, how far they range and how fast they grow in relationship
to temperature and moisture. This year’s cool, rainy Ozark spring, for
instance, rendered the 25 radio tagged animals sluggish, he said.

"If we understand how individuals are affected by environmental
change, then we can predict what might happen in the future and assess the
potential environmental impact of certain changes," Beaupre said.

The male rattlesnakes who travel far and find females this summer will
mate. The female will store the sperm until the spring, when she will try to
eat enough to generate fat and produce follicles that she can then fertilize
with the sperm.

If the rattlesnake doesn’t have enough fat, she can reabsorb the follicles
and not become pregnant — a handy biological mechanism for an animal whose food
supply varies greatly from year to year, Beaupre said. She can store the sperm
for another year, to use when she has reached a critical mass.

If she does catch enough prey, the sperm will fertilize the follicles, and
the female will find a spot to stay warm, where she may not eat again until the
babies are born in mid-August to mid-September. Some snakes lay eggs, but
rattlesnakes give birth to live young, Beaupre said.

"We’re just beginning to scratch the surface of what we can learn
about these fascinating animals," he said.







Story Source:

The above story is based on materials provided by University
Of Arkansas. Note: Materials may be edited for content and length.

http://www.sciencedaily.com/releases/1999/07/990713073638.htm

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