Geographic Range
Asian badgers (
Meles leucurus
) range widely throughout the temperate regions of eastern Europe and Asia. Their
range extends from eastern Russia to China and is bordered in the south by the Himalayas.
The western boundary of their range is the Ural-Volga region of Russia, along which,
they are sympatric with European badgers (
Meles meles
).
- Biogeographic Regions
- palearctic
Habitat
Asian badgers occupy a diverse range of habitats. They are found in deciduous, coniferous
and mixed forests, as well as mountainous regions, steppes, semi-deserts, and tundra.
In forested areas they often dig burrows on the south-facing slopes of ravines, where
the snow melts earlier. They prefer areas with well-drained soil. In steppe regions
they often occupy gullies. They may burrow in the banks of coastal lakes, as well
as near the bottom of sand dunes. They always stay near a water source. In the Caucasus
Mountains, they range vertically from sea level to the alpine meadows.
- Habitat Regions
- temperate
- terrestrial
- Terrestrial Biomes
- tundra
- desert or dune
- savanna or grassland
- forest
- mountains
Physical Description
Asian badgers have a stocky, somewhat wedge-shaped body. Their limbs are short, with
strong elongated claws (22 to 26 mm) that are well-adapted for digging. The average
size and mass of Asian badgers varies regionally. Those found in Siberia are larger
than those from the far-Eastern part of the range. Their mass also varies throughout
the year, peaking in the fall before hibernation. Males are generally larger, but
there is variation in the degree of sexual dimorphism between different populations.
The pelage of Asian badgers is dense and coarse. They are generally grayish-silver
with a white face and dark brown or black stripes running over each eye. They exhibit
a range of regional pelage coloration. Specimens from Mongolia have a relatively
lighter coat, while those from the Amur region are particularly dark in color. In
addition, mountain inhabitants are almost always darker than those of the plains.
- Other Physical Features
- endothermic
- homoiothermic
- bilateral symmetry
- Sexual Dimorphism
- male larger
Reproduction
Asian badgers can mate year-round and fertilization can occur at any time, but cubs
are generally only born between mid-January and mid-March. This is achieved through
delayed implantation.
- Mating System
- polygynandrous (promiscuous)
Badgers of the genus
Meles
give birth once per year, usually between mid-January and mid-March. Mating occurs
primarily in the spring. Mating and fertilization may occur throughout the year,
but implantation is delayed. There is no data available specific to
M. leucurus
.
- Key Reproductive Features
- iteroparous
- seasonal breeding
- gonochoric/gonochoristic/dioecious (sexes separate)
- sexual
- delayed implantation
Badgers of genus
Meles
show alloparental behavior, where related individuals help raise the young. These
relatives may chase the young into the den when they are threatened, or chase away
predators. There is no data available for
M. leucurus
, specifically.
- Parental Investment
- female parental care
Lifespan/Longevity
There is no data available on the lifespan of
M. leucurus
in the wild or in captivity.
Meles meles
, a close relative, may reach 15 years in the wild; however, it is fairly unusual
for individuals to exceed 10 years. The oldest known captive
M. meles
was 19 1/2 years.
Behavior
Asian badgers are primarily nocturnal. They can be fairly gregarious, living in communal
setts (underground burrows) with multiple tunnels and entrances. In areas of limited
food availability, the badgers are often solitary.
Asian badgers often hibernate in family groups, adults share dens with cubs born during
the previous year. Yearlings and older single badgers occupy individual dens.
- Key Behaviors
- fossorial
- nocturnal
- motile
- sedentary
- hibernation
Home Range
There is little data available for
M. leucurus
; however, it is most active within approximately 400 to 500 m of its den.
Communication and Perception
Badgers of the genus
Meles
have a relatively high count of rod to cone cells. In addition, they have a tapetum
which reflects light back through the retina. These features aid in night vision.
The eyes of
Meles
badgers are relatively small for nocturnal mammals. This indicates that eyesight
may be of less importance to the animal than other senses.
Meles
badgers have an extremely well developed sense of smell. Scroll bones in the nasal
cavity provide a large surface area for sensory epithelia.
Little is known about hearing in
Meles
badgers. They produce a large variety of noises covering a wide range of frequencies.
These noises may be useful in communication.
- Other Communication Modes
- scent marks
Food Habits
Asian badgers are omnivorous and consume a wide variety of foods, including
earthworms
,
insects
,
mammals
,
reptiles
,
birds
,
frogs
,
mollusks
, berries,
pine nuts
, and other plant material. Regional badger diet is based largely on availability.
Throughout much of its range, earthworms (
Lumbricus terrestris
) are the most common food source.
Insects
make up the majority of the Asian badger's diet in more arid regions, such as Mongolia.
A population on Bol’shoi Chukhtinskii Island in Russia may subsist largely on
pine nuts
. They have also been known to prey on young livestock.
- Primary Diet
-
carnivore
- insectivore
- vermivore
- herbivore
- Animal Foods
- birds
- mammals
- amphibians
- reptiles
- fish
- eggs
- insects
- mollusks
- terrestrial worms
- Plant Foods
- leaves
- wood, bark, or stems
- seeds, grains, and nuts
- fruit
Predation
Asian badger cubs may be preyed upon by
lynxes
,
wolves
, and
wolverines
, where their ranges overlap. Adult badgers are not known to have predators.
Ecosystem Roles
Members of genus
Meles
are commonly parasitized by fleas (
Paraceras melis
), lice (
Trichodectes melis
), and ticks (
Ixodes
), and to a lesser degree,
mites
. No specific information is available for
M. leucurus
.
- fleas ( Paraceras melis ) (class Insecta ; phylum Arthropoda )
- lice ( Trichodectes melis ) (class Insecta ; phylum Arthropoda )
- ticks ( Ixodes ) (class Arachnida ; phylum Arthropoda )
Economic Importance for Humans: Positive
Asian badger's hair is used for various types of brushes. Their hide is used to make
rugs and leatherwork.
- Positive Impacts
- body parts are source of valuable material
Economic Importance for Humans: Negative
There is evidence of Asian badgers preying upon livestock, calves and foals. They
are also attracted to
grapes
in vineyards, and may damage fences to access them.
- Negative Impacts
- crop pest
Conservation Status
Current information on population trends is not available for M. leucurus .
Additional Links
Contributors
Corey Oldham (author), University of Alaska Fairbanks, Laura Prugh (editor), University of Washington, Leila Siciliano Martina (editor), Texas State University.
- Palearctic
-
living in the northern part of the Old World. In otherwords, Europe and Asia and northern Africa.
- native range
-
the area in which the animal is naturally found, the region in which it is endemic.
- temperate
-
that region of the Earth between 23.5 degrees North and 60 degrees North (between the Tropic of Cancer and the Arctic Circle) and between 23.5 degrees South and 60 degrees South (between the Tropic of Capricorn and the Antarctic Circle).
- terrestrial
-
Living on the ground.
- tundra
-
A terrestrial biome with low, shrubby or mat-like vegetation found at extremely high latitudes or elevations, near the limit of plant growth. Soils usually subject to permafrost. Plant diversity is typically low and the growing season is short.
- desert or dunes
-
in deserts low (less than 30 cm per year) and unpredictable rainfall results in landscapes dominated by plants and animals adapted to aridity. Vegetation is typically sparse, though spectacular blooms may occur following rain. Deserts can be cold or warm and daily temperates typically fluctuate. In dune areas vegetation is also sparse and conditions are dry. This is because sand does not hold water well so little is available to plants. In dunes near seas and oceans this is compounded by the influence of salt in the air and soil. Salt limits the ability of plants to take up water through their roots.
- tropical savanna and grassland
-
A terrestrial biome. Savannas are grasslands with scattered individual trees that do not form a closed canopy. Extensive savannas are found in parts of subtropical and tropical Africa and South America, and in Australia.
- savanna
-
A grassland with scattered trees or scattered clumps of trees, a type of community intermediate between grassland and forest. See also Tropical savanna and grassland biome.
- temperate grassland
-
A terrestrial biome found in temperate latitudes (>23.5° N or S latitude). Vegetation is made up mostly of grasses, the height and species diversity of which depend largely on the amount of moisture available. Fire and grazing are important in the long-term maintenance of grasslands.
- forest
-
forest biomes are dominated by trees, otherwise forest biomes can vary widely in amount of precipitation and seasonality.
- mountains
-
This terrestrial biome includes summits of high mountains, either without vegetation or covered by low, tundra-like vegetation.
- endothermic
-
animals that use metabolically generated heat to regulate body temperature independently of ambient temperature. Endothermy is a synapomorphy of the Mammalia, although it may have arisen in a (now extinct) synapsid ancestor; the fossil record does not distinguish these possibilities. Convergent in birds.
- bilateral symmetry
-
having body symmetry such that the animal can be divided in one plane into two mirror-image halves. Animals with bilateral symmetry have dorsal and ventral sides, as well as anterior and posterior ends. Synapomorphy of the Bilateria.
- polygynandrous
-
the kind of polygamy in which a female pairs with several males, each of which also pairs with several different females.
- iteroparous
-
offspring are produced in more than one group (litters, clutches, etc.) and across multiple seasons (or other periods hospitable to reproduction). Iteroparous animals must, by definition, survive over multiple seasons (or periodic condition changes).
- seasonal breeding
-
breeding is confined to a particular season
- sexual
-
reproduction that includes combining the genetic contribution of two individuals, a male and a female
- delayed implantation
-
in mammals, a condition in which a fertilized egg reaches the uterus but delays its implantation in the uterine lining, sometimes for several months.
- female parental care
-
parental care is carried out by females
- fossorial
-
Referring to a burrowing life-style or behavior, specialized for digging or burrowing.
- nocturnal
-
active during the night
- motile
-
having the capacity to move from one place to another.
- sedentary
-
remains in the same area
- hibernation
-
the state that some animals enter during winter in which normal physiological processes are significantly reduced, thus lowering the animal's energy requirements. The act or condition of passing winter in a torpid or resting state, typically involving the abandonment of homoiothermy in mammals.
- visual
-
uses sight to communicate
- acoustic
-
uses sound to communicate
- chemical
-
uses smells or other chemicals to communicate
- scent marks
-
communicates by producing scents from special gland(s) and placing them on a surface whether others can smell or taste them
- visual
-
uses sight to communicate
- tactile
-
uses touch to communicate
- acoustic
-
uses sound to communicate
- chemical
-
uses smells or other chemicals to communicate
- carnivore
-
an animal that mainly eats meat
- insectivore
-
An animal that eats mainly insects or spiders.
- herbivore
-
An animal that eats mainly plants or parts of plants.
- granivore
-
an animal that mainly eats seeds
References
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