Order Testudines,
Family Emydidae
Box turtles are the most terrestrial of the Emydid turtles, having
close-fitting shells that have allowed them to adapt well to terrestrial life.
They are found throughout the eastern and central United States and into the
southwest. They are omnivorous. Eastern Box turtles are also known
as box tortoises, currently, four recognized species of box turtles.
Eastern Box Turtle
Facts
The eastern box
turtle (Terrapene Carolina carolina) ranges from northeastern Massachusetts to
Georgia, west to Michigan, Illinois, and Tennessee. Also, they prefer the
water, but are not improved for swimming in water. Box Turtles can roam up to
one mile in a year. The main roads are a major deadly hazard for these
slow-moving creatures.
Also,
aggressive exotics smother their food plants. Raccoons and crows,
though native, are major predators of young turtles. Also,
lawnmowers get injure and kill box turtles. There are four subspecies
of T. Carolina. All found within the eastern United States.
·
T. c. carolina, T. c. major (Gulf Coast box turtle; the largest
subspecies, restricted to the Gulf Coast).
·
T. c. triunguis (three-toed box turtle; Missouri to south-central
Alabama and Texas).
·
T. c. bauri (Florida box turtle; restricted to the Florida
peninsula and keys.
Body Size
The eastern box
turtle is small, with adults ranging from 11.5 to 15.2 cm in length and
approximately 300 to over 400 g. Hatchlings weigh approximately 8 to 10 g.
Turtles continue to grow throughout their lives.
However, their growth
rate slows after reaching sexual maturity. The growth rings are no longer discernible
after 18 to 20 years. Therefore, the body fat reserves in a Georgia
population-averaged 0.058 to 0.060 g of fat per gram of lean dry weight from
spring through fall.
Where do Eastern Box Turtles Live?
Typical box turtle
habitats include open woodlands, thickets, and well-drained but moist forested
areas. But occasionally pastures and marshy meadows are utilized. In areas with
mixed woodlands and grasslands, box turtles use grassland areas in times of moderate
temperatures and peak moisture conditions.
Otherwise, they tend
to use moister forested habitats. Many turtles are killed attempting to
crossroads, and fragmentation of habitat by roads can severely reduce
populations. Eastern Box turtles tend to thrive best when they have let
them leave alone. Various people illegally collect Eastern box turtles to breed in
captivity to adopt as pets.
Eastern Box Turtle
Diet
Most people want to
know, what do eastern box turtles eat. Thus, adult T. carolinaare omnivorous
when young, they are primarily carnivorous, but they become more herbivorous as
they age and as growth slows. They consume a wide variety of animal material,
including earthworms, slugs, snails, insects and their larvae (particularly
grasshoppers, moths, and beetles), crayfish, frogs, toads, snakes, and carrion.
They also consume
vegetable matter, including leaves, grass, berries, fruits, and fungi. A high
proportion of snails and slugs may comprise the animal matter in the diet, and
seeds can become an important component of the plant materials in the late
summer and fall.
Temperature
Regulation and Daily Activities
The species is
diurnal and spends the night resting in a scooped depression or form that the
turtle digs in the soil with its front feet T.carolinaare most active in
temperate, humid weather. In the summer, they avoid high temperatures during
midday by resting under logs or leaf litter, in mammal burrows, or by
congregating in mud holes.
In the hottest
weather, they may enter shaded shallow pools for hours or days. In the cooler
temperatures, they may restrict their foraging activities to midday. In the
laboratory, locomotion is maximal between 24 and 32C. In the field, their mean
active body temperature is approximately 26C.
Hibernation
In the northern parts
of its range (northeastern Massachusetts, Michigan, Illinois), the eastern box
turtle enters hibernation in late October or November and emerges in April. In
Louisiana, it is found that T. c. major hibernated when temperatures fell below
65F. To hibernate, the box turtle burrows into loose soil and debris or mud of
ponds or stream bottoms.
The South Carolina
population of box turtles to occupy relatively shallow burrows (less than 4 cm)
compared with those occupied by box turtles in colder regions (up to 46 cm).
The hibernacula of box turtles in Tennessee are under 15.5 cm of leaf litter
and 5.8 cm of soil on average. In southern states, during rainy and warm
periods, box turtles may become active again. In Florida, the box turtle may be
active all year.
Eastern Box Turtle Care?
Keep the Box Turtle it in an outdoor enclosure if the climate is
often remaining above 60 degrees Fahrenheit. Or keep in indoor glass tank which
has at least 20 gallons of water. Moreover, soak from time to time to rehydrate
and cool down the body of water that is large but shallow. Also, mist their
living place several times daily with a spray bottle, to keep the humidity
level high.
The Box turtles normally live for 25 to 35 years but in some
cases, it is known to survive to over 100 years old. Moreover, if there are no
woods on the roadside, then the best you can do is to find a small patch of
woods as close to where the turtle was heading and reposition them there.
If anyone has Box Turtle as pets, then you must provide an
adequate sun or artificial light to stay healthy along with a suitable diet. As
Box Turtles are omnivores, so they need invertebrates, such as insects and
worms, vegetable matter, leaves, fruits, and berries. Hence, it is very
imperative to provide a varied diet in captivity to ensure good nutrition.
Breeding Activities
and Social Organization
Box turtles are
solitary except briefly during the mating season. Individuals restrict their
activities to a foraging home range, but home ranges of different individuals
can overlap substantially.
Mating usually occurs in the spring but may
continue into fall, and eggs are laid in late spring and summer. The female
digs a 3-to 4-inch cavity in sandy or loamy soil in which she deposits her eggs
and then covers the nest with soil. Also, Box turtle eggs can be a very easy
target for predators like raccoons.
Nests tend to be
constructed several hundred meters from the female's foraging home range in the
warmer and drier uplands. The duration of incubation depends on soil
temperatures, and sometimes hatchlings overwinter in the nest. The young are semi
aquatic but seldom seen.
Home Range and
Resources
Measures of the
foraging home range for box turtles range from .5 ha to just over 5 ha. A
female may need to search for suitable nest site (e.g., slightly elevated sandy
soils) outside of her foraging home range. Winter hibernacula tend to be within
the foraging home range.
Population Density
Population density
varies with habitat quality, but studies linking density to habitat
characteristics are lacking. In some areas, population densities have declined
steadily over the past several decades.
Some investigators
attribute the decline to increasing habitat fragmentation and obstacles that
prevent females from reaching or returning from appropriate nesting areas.
Population Dynamics
Sexual maturity is
attained at about 4 or 5 years to 5 to 10 years of age. One to four clutches
may be laid per year, depending on latitude. Eastern Box Turtle
clutch size ranges from three to eight eggs, averaging three to four in some
areas.
Juveniles generally
comprise a small proportion of box turtle populations, for example, 18 to 25
percent in one population in Missouri. Some individual box turtles may live
over 100 years.
Similar Species
The ornate box turtle (Terrapene ornata ornata) and the desert box
turtle (Terrapene ornata luteola) are similar in size and habits to the eastern
box turtle. They occur in the western, midwestern, and southern Midwestern
states.
Preferred habitats include open prairies, pastureland, open
woodlands, and waterways in arid, sandy-soil terrains. The ornate box turtle
and desert box turtle forage primarily on insects but also on berries and
carrion.
Are Eastern Box Turtles Endangered?
Eastern Box Turtles are not listed as endangered by the United
States Fish and Wildlife Service. However, in some cases, it is considered
threatened by many conservationists due to Loss of habitat, collisions with
traffic, and illegal trade has made the eastern box turtle scarce in some of
its native ranges.
Hence in recent years their population has been in decline. The
exclusive bright coloration shell makes it very special for animals’ lovers.
The Eastern Box Turtles length is 4 to 8.5” with its carapace is high and
dome-shaped. The shell is made of bone covered by living vascularized tissue
and covered with a layer of keratin.
The strong shell is connected to the body through its fused rib
cage which makes the shell enduringly attached and not detachable. However,
when it gets injured or damaged, the shell has the capacity to regenerate and
reform.
Read More – The Snapping Turtles (Chelydra serpentina)
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