AMPHIBIANS
Barred
Tiger Salamander
Ambystoma
tigrinum
Habits
and Habitat
·
It’s
color is usually black with yellow bars
·
Lives
in arid plains, damp meadows, mountain forests from south central
Canada to northern Florida and Mexico.
All they require are ponds, lakes, marshes or
other permanent bodies of water in which to breed.
·
The tiger salamander is rarely found above
ground except during the brief breeding period in winter and spring,
usually following heavy rainfall.
·
Live
near water among plant debris or use crayfish or mammal burrows
for refuge.
·
Female
lays 1000 eggs in 2 - 3 small clumps which are attached to sticks
and weed masses along water's edge
·
Mate
in the water and are born with gills which remain for up to a
year.
·
Often
active at night particularly after rainfall.
Diet
·
Any
animal small enough to swallow such as insects, worms, fish, tadpoles,
frogs, toads, salamanders and mice.
Did you know?
·
The
tiger salamander is the world’s largest land dwelling salamander
with a length of 6-8½ inches.
·
Adults
have many enemies so they secrete a milky toxin from glands on
the back and tail for defense
Eastern Tiger
Salamander
Ambystoma
tigrinum
Presently
found Ranging from Long Island, New York to
Northern Florida and from Minnesota to the Gulf Coast.
Habitat
Sandy soils, moist meadows, burrows of mammals and invertebrates.
They spend most of their life underground.
They rarely come above ground except in the evenings
after a rain or during breeding season.
At this time there is a mass migration of tiger salamanders
to large bodies of water, including ponds, streams, lakes and
even temporary pools.
Size
7-8 ¼ inches.
Males have slightly longer tails than females.
Tail makes up half of body length.
Lifespan
12-15 years
Description
They are often blotched or spotted, they vary in dorsal
color from olive green to brown or black, with a yellowish marbled
pattern. Their bellies are usually yellow or olive green with
dark markings. Most adults have grooved bodies, broad heads,
and small eyes.
Diet
Large insects, earthworms, and small mice. Their Zoo
diet consists of crickets and pinkies (which are baby hairless
mice), which are fed to them twice a week.
Defense
Very hard to study because it spends so
much time under ground
Some
salamanders are capable of shedding their tails, which will
then move independently of their bodies to distract their predators.
The tail will then regenerate.
Reproduction
During migration, which is from late fall to early spring,
when they arrive near the water, males and females begin a ceremony
of pushing and nose rubbing. The female will then lay eggs,
which will stick to underwater debris. After they hatch, it
takes about three weeks before they lose their gill and become
full adults. They lay
25-50 eggs per year.
Extra
fun info They are endangered in their native
state of New York due to the destruction of critical habitat,
use of pesticides and pollution. One of the oldest groups of
existing terrestrial vertebrates.
Earliest true salamander lived about 150 million years
ago during the Jurassic Period. There are 380 different species.
They are cold-blooded, moist skinned amphibians-ectotherms,
which mean animals whose body temperature are dependent in their
environment. They are relatives of frogs and toads and caecilians.
Their eyesight is well developed and their hearing is poor.
They have delicate permeable skin through which water and gases
such as oxygen and carbon dioxide can enter and leave the body.
This makes them sensitive to handle and should only be displayed
in a terrarium.