Geographic Range
Lepus habessinicus
is confined to East Africa. It is known from Somalia, eastern Ethiopia, and may be
found in northern Kenya (Flux and Angermann, 1990; Smith and Johnson, 2008).
Habitat
Abyssinian hares replace
Cape hares
in open grassland, steppe, savanna, and desert environments. Small shrubs are used
for shade and protection from predators during the day (Flux and Angermann, 1990).
Abyssinian hares range in elevation from sea level to 2,500 meters (Yalden et al.,
1996; Smith and Johnson, 2008).
- Habitat Regions
- tropical
- terrestrial
- Terrestrial Biomes
- desert or dune
- savanna or grassland
- Other Habitat Features
- agricultural
Physical Description
Abyssinian hares are medium-sized hares, with a body length of 440 to 450 mm, hind
feet measure 105 to 110 mm, and ears range in length from 105 to 115 mm (Azzaroli-Puccetti,
1987). In northern Somalia, these hares have fur that is thin and soft and the tail
is white underneath and black on the dorsal side. Abyssinian hares are uniformly gray
on the shoulders and thighs, with black on the rump, and a white belly with a light
buff coloring up on the sides. The front and back legs, as well as the neck, are also
buff colored mixed with grey. Long hairs are found throughout the normal coat (Azzaroli-Puccetti,
1987). Abyssinian hares seen in Ethiopia are slightly lighter than those of northern
Somalia. They are darker on top of their body with a dark patch on the forehead. The
rest of the body is consistently gray from the shoulders to the rump. Ears are grey
with black on the tips with white hairs. The whiskers grow to 10 cm long and are mostly
white with black at the base (Azzaroli-Puccetti, 1987).
- Other Physical Features
- endothermic
- homoiothermic
- bilateral symmetry
Reproduction
There is little known or reported on the reproductive habits of Abyssinian hares.
They are thought to mate at night, like
Cape hares
(Flux and Angermann, 1990; Hoffman and Smith, 2005). Like most
lagormorphs
, Abyssinian hares are polygynandrous; males and females both have multiple mates.
- Mating System
- polygynandrous (promiscuous)
Little is known about mating behavior in Abyssinian hares, but they are likely similar
to
Cape hares
(Flux and Angermann, 1990). Cape hares produces 8 litters a year. Near the equator
breeding is continuous and litter size varies with seasonal rainfall (Flux, 1981).
Most
hares
display competitive mating behavior, "boxing" is observed between males and females
and between male rivals before copulation (Chapman and Flux, 1990). Male hares then
chase females in a zigzag pattern. If a female (who is dominant in this situation)
accepts the male after the chase, copulation will occur (Chapman and Flux, 1990).
Hares give birth to young that are fully furred, with open eyes, and that are ready
to move within minutes (Flux and Angermann, 1990).
- Key Reproductive Features
- iteroparous
- year-round breeding
- gonochoric/gonochoristic/dioecious (sexes separate)
- sexual
- viviparous
Like most
hares
, Abyssinian hares have little post-birth parental investment. Males play no role
in raising young. Females take care of the young, which are born with fur and their
eyes already open. Mother hares have very rich milk and only return once a day to
feed their young for a short period, a technique known as 'absentee parenting' (Flux
and Angermann, 1990; Chapman and Flux, 2008). Hares are weaned within 39 days of being
born.
- Parental Investment
- precocial
- female parental care
-
pre-hatching/birth
-
provisioning
- female
-
protecting
- female
-
provisioning
-
pre-weaning/fledging
-
provisioning
- female
-
provisioning
Lifespan/Longevity
Little is known about lifespan in Abyssinian hares. Some
hare
species are known to live 10 to 13 years in captivity (
Japanese hares
and
European hares
), or as many as 18 years in the wild (
mountain hares
). Hares have high breeding rates. This suggests that many individuals generally don't
live long in the wild because of they are often prey for other species, resulting
in up to 90% mortality within a given year (Chapman and Flux, 2008).
Behavior
Behavior of Abyssinian hares has not been well-studied, but is considered similar
to
Cape hares
(Flux and Angermann, 1990) in being silent, solitary, and nocturnal. They feed at
night and can travel widely, especially in pursuit of food. This behavior aids in
the transport of plant seeds to other areas. Hares display ownership of a food source
by stockpiling grass and then protecting the food from other hares or by guarding
a female during mating (Holley, 1986). Abyssinian hares may also be similar to
Cape hares
in terms of sociality; out of 800
Cape hares
only four groups were of observed, each consisting of three individuals (Flux and
Angermann, 1990).
- Key Behaviors
- cursorial
- terricolous
- saltatorial
- nocturnal
- motile
- sedentary
- solitary
Home Range
Communication and Perception
Hares are solitary and silent animals and tend to use their hearing rather than their
sight to perceive their environment (Flux and Angermann, 1990). Abyssinian hares communicate,
like most hares, with grunts or screams. Female Abyssinian hares use 'grunting' to
call for their young. A high pitched scream can also be heard when they are caught
by a predator (Chapman and Flux, 2008).
Food Habits
Abyssinian hares are herbivorous, they eat many types of vegetation including grasses,
shrubs, and forbs found in their savanna, grassland, steppe, valley floor, and cultivated
agricultural land habitats (Flux and Angermann, 1990).
- Plant Foods
- leaves
- seeds, grains, and nuts
- flowers
Predation
Abyssinian hares use vegetation, such as shrubs, to hide from predators (Flux and
Angermann, 1990). Hares feed at night, using their hearing to avoid predators. To
avoid predation, they may: 1) sneak into thick vegetation or brush or 2) freeze in
place to reduce visibility (Chapman and Flux, 1990). Specific predator species are
not reported, but they may be taken by large raptors,
canids
, or snakes throughout their range.
- Anti-predator Adaptations
- cryptic
Ecosystem Roles
Hares can replace each other easily if the ecological conditions are right. For example,
Abyssinian hares replace
Cape hares
in the open grassland, steppe, savanna, and desert environments of East Africa (Flux
and Angermann, 1990). In addition to being an important prey source and dispersing
seeds, they can reverse the natural downhill flow of nutrients in a ecosystem by eating
on the valley floor and defecating as they travel uphill (Flux and Angerman, 1990).
Similar to
Cape hares
, Abyssinian hares prefer pasture that has been overgrazed by livestock and land where
fires have burned the vegetation, resulting in new growth. These human activities
have extended the range of these hares significantly (Flux and Angerman, 1990).
- Ecosystem Impact
- disperses seeds
Economic Importance for Humans: Positive
Abyssinian hares can be a source of food and fur for humans.
- Positive Impacts
- food
- body parts are source of valuable material
Economic Importance for Humans: Negative
Abyssinian hare ranges are thought to be expanding due to human activities, such as
overgrazing of pastures by domesticated livestock (Flux and Angermann, 1990). Hares
also can be a nuisance in agricultural fields by eating and destroying crops, although
the economic significance of this is unknown (Chapman and Flux, 2008).
Conservation Status
Abyssinian hares are considered "least concern" by the IUCN because of their large
range and abundance.
Other Comments
Some authors consider
Lepus habessinicus
a subspecies of
Lepus capensis
.
Additional Links
Contributors
Ashley Nickolai (author), University of Wyoming, Hayley Lanier (editor), University of Wyoming - Casper, Tanya Dewey (editor), University of Michigan-Ann Arbor.
- Ethiopian
-
living in sub-Saharan Africa (south of 30 degrees north) and Madagascar.
- native range
-
the area in which the animal is naturally found, the region in which it is endemic.
- tropical
-
the region of the earth that surrounds the equator, from 23.5 degrees north to 23.5 degrees south.
- terrestrial
-
Living on the ground.
- 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.
- agricultural
-
living in landscapes dominated by human agriculture.
- 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).
- year-round breeding
-
breeding takes place throughout the year
- sexual
-
reproduction that includes combining the genetic contribution of two individuals, a male and a female
- viviparous
-
reproduction in which fertilization and development take place within the female body and the developing embryo derives nourishment from the female.
- young precocial
-
young are relatively well-developed when born
- female parental care
-
parental care is carried out by females
- saltatorial
-
specialized for leaping or bounding locomotion; jumps or hops.
- nocturnal
-
active during the night
- motile
-
having the capacity to move from one place to another.
- sedentary
-
remains in the same area
- solitary
-
lives alone
- visual
-
uses sight to communicate
- acoustic
-
uses sound to communicate
- visual
-
uses sight to communicate
- tactile
-
uses touch to communicate
- acoustic
-
uses sound to communicate
- chemical
-
uses smells or other chemicals to communicate
- cryptic
-
having markings, coloration, shapes, or other features that cause an animal to be camouflaged in its natural environment; being difficult to see or otherwise detect.
- food
-
A substance that provides both nutrients and energy to a living thing.
- herbivore
-
An animal that eats mainly plants or parts of plants.
- folivore
-
an animal that mainly eats leaves.
- granivore
-
an animal that mainly eats seeds
References
Azzaroli-Puccetti, M. 1987. The systematic relationships of hares (genus Lepus ) of the Horn of Africa. Cimbebasia , 9/1: 1-22.
Chapman, J., J. Flux. 1990. Introduction and overview of the Lagomorphs. Pp. 1-6 in Rabbits, Hares and Pikas: Status Survey and Conservation Action Plan . Gland, Switzerland: IUCN.
Chapman, J., J. Flux. 2008. Introduction to the Lagomorpha. Pp. 1-9 in Lagomorph Biology: Evolution, Ecology, and Conservation 1-9 . Springer Berlin Heidelberg: Springer Berlin Heidelberg. Accessed November 07, 2013 at http://link.springer.com.libproxy.uwyo.edu/book/10.1007%2F978-3-540-72446-9 .
Flux, J., R. Angermann. 1990. The hares and jackrabbits. Pp. 61-94 in Rabbits, Hares and Pikas: Status Survey and Conservation Action Plan . Gland, Switzerland: International Union for Conservation.
Flux, J. 1981. Reproductive strategies in the genus Lepus . Pp. 155-174 in Proceedings of the World Lagomorph Conference . Guelph: University of Guelph.
Hoffmann, R., A. Smith. 2005. Lagomorphs. Pp. 185-211 in Mammal Species of the World, 3rd Edition . John Hopkins University Press: John Hopkins University Press.
Holley, A. 1986. A hierarchy of hares: dominance status and access to oestrous does. Mammal Review , 16: 181-186.
Smith, A., C. Johnson. 2008. " Lepus habessinicus " (On-line). The IUCN Red List of Threatened Species. Accessed November 04, 2013 at http://www.iucnredlist.org/details/full/41289/0 .
Yalden, D., M. Largen, D. Kock, J. Hillman. 1996. Catalogue of the mammals of Ethiopia and Eritrea. 7. Revised checklist, zoogeography and conservation. Tropical Zoology , 9: 73-164. Accessed November 22, 2013 at http://www.catsg.org/cheetah/05_library/5_3_publications/X_Y_and_Z/Yalden_et_al_1996_Mammals_of_Ethiopia_and_Eritrea_Revised_checklist.pdf .
2009. " Lepus capensis " (On-line). Human Aging Genomic Resources. Accessed November 29, 2013 at http://genomics.senescence.info/species/entry.php?species=Lepus_capensis .