Geographic Range
Lepus castroviejoi
is an endemic species inhabiting a restricted range in northern Spain. They are
found in the Cantabrian Mountains between Sierra de Ancares and Sierra de Pena Labra.
The range is approximately 25 to 40 km by 230 km in size. Although the range is restricted,
distribution is even and these hares are common throughout their range.
- Biogeographic Regions
- palearctic
Habitat
Broom hares inhabit elevations from 1,300 m to 1,900 m in the Cantabarian Mountains.
They have been know to descend to lower elevations of about 1,000 m in winter to avoid
snow. Much of the native habitat is heathland, mostly consisting of shrubs in the
genera
Erica
,
Calluna
, and
Vaccinium
. There is also a fair amount of brush cover which consists of
Cytisus
,
Genista
, and
Juniperus
. Broom hares may spend additional time in mixed deciduous forest of oak and beech.
Broom hares prefer to spend most of their time feeding at night in recently burned
clearings. During the day, broom hares spend more time in dense vegetation.
- Habitat Regions
- temperate
- terrestrial
- Terrestrial Biomes
- savanna or grassland
- chaparral
- scrub forest
- mountains
Physical Description
The average weight of a broom hare is 2905 g for adults. Broom hares are intermediate
in size when compared to other hares occurring in Spain (
Lepus europaeus
and
Lepus granatensis
). The tail and ears are smaller than in both of these other species. Some skull characteristics
are unique. One of these characters is a
sutura nasofrontalis
shaped in a typical open V. Broom hare coloration is similar to the other hares occurring
in northern Spain, except that the pelage is usually more brownish-yellow.
- Other Physical Features
- endothermic
- homoiothermic
- bilateral symmetry
- Sexual Dimorphism
- sexes alike
Reproduction
There was no information on mating systems available for broom hares. Reproduction may be similiar to their close relative Lepus europaeus .
There is no information on reproduction available for
Lepus castroviejoi
. Reproduction may be similiar to its close relative,
Lepus europaeus
. The reproductive potential of broom hares is likely to be high because
leporids
are capable of having multiple litters during a breeding season.
- Key Reproductive Features
- iteroparous
- gonochoric/gonochoristic/dioecious (sexes separate)
- sexual
- viviparous
There is little information available on parental investment in broom hares. Like
most other
rabbits
, broom hare females probably care for and nurse their young for a brief period before
they become independent.
- Parental Investment
- precocial
-
pre-fertilization
- provisioning
-
protecting
- female
-
pre-hatching/birth
-
provisioning
- female
-
protecting
- female
-
provisioning
-
pre-weaning/fledging
-
provisioning
- female
-
provisioning
Lifespan/Longevity
The lifespan of broom hares is unknown. Lifespan may be similiar to that of Lepus europaeus .
Behavior
Broom hares are active at night and are rarely seen during the day. They move by saltatorial
locomotion.
- Key Behaviors
- terricolous
- saltatorial
- nocturnal
- motile
- sedentary
- solitary
Home Range
Broom hare home range size is unkown. It may be similar to that of
Lepus europaeus
.
Communication and Perception
There is no specific information on broom hare communication. Like other hares , broom hares have exceptionally well-developed hearing. They also use vision and chemical communication to assess reproductive status of conspecifics.
Food Habits
Broom hares are herbivorous, but little is known about their specific diet or food
preferences. They do prefer to spend their time foraging in recently burned areas
and small clearings. They are hindgut fermenters, and use coprophagy to aid in recovering
important nutrients.
- Primary Diet
- herbivore
- coprophage
- Plant Foods
- leaves
- wood, bark, or stems
- Other Foods
- dung
Predation
Broom hares, like other
hares
, are important prey for many carnivores. Broom hares are mainly preyed on by foxes
(
Vulpes vulpes
), wild cats (
Felis silvestris
), wolves (
Canis lupus
), large owls (
Strigiformes
), and golden eagles (
Aquila chrysaetos
). Humans also prey on broom hares.
- Anti-predator Adaptations
- cryptic
Ecosystem Roles
Broom hares play a role in the ecosystem as a prey for many predators. They also impact
vegetation communities through their browsing.
Economic Importance for Humans: Positive
Broom hares are sometimes used as food for humans.
- Positive Impacts
- food
Economic Importance for Humans: Negative
There are no known adverse effects of broom hares on humans. They have the potential
to cause crop damage if populations are high.
- Negative Impacts
- crop pest
Conservation Status
There are many different factors that affect broom hare populations, including overharvesting,
illegal hunting, habitat changes, and disease. As tree plantations increase in their
native range, and cultivated areas decrease, these hares lose habitat. Currently there
are no cases of diseases affecting broom hares, but many diseases affect their close
relatives throughout Europe and are continously spreading. Poisoning is another potential
problem, pesticides and chemical fertilizers have been known to affect some populations
of
L. europaeus
, and broom hares could be affected as well.
To ensure the persistence of broom hares, some actions must be taken to limit the
threats stated above. The effects of hunting, predation and habitat changes should
be further studied to determine the best solution. Hunting regulations should be changed
to help further protect the broom hare. Care must be taken if hares are relocated
or moved to insure they do not bring diseases with them. Habitat can also be improved
by changing land use to increase the frequency of burning.
The primary threats to broom hares currently are considered their limited distribution
and excessive hunting on the western part of their range.
Other Comments
Broom hares were described as a species in 1976, and are unique mammals found in a
small range. They have two close relatives,
Lepus europaeus
and
Lepus granatensis
, that border their range.
Additional Links
Contributors
Tanya Dewey (editor), Animal Diversity Web.
Austin Brose (author), University of Wisconsin-Stevens Point, Chris Yahnke (editor, instructor), University of Wisconsin-Stevens Point.
- 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.
- 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.
- chaparral
-
Found in coastal areas between 30 and 40 degrees latitude, in areas with a Mediterranean climate. Vegetation is dominated by stands of dense, spiny shrubs with tough (hard or waxy) evergreen leaves. May be maintained by periodic fire. In South America it includes the scrub ecotone between forest and paramo.
- scrub forest
-
scrub forests develop in areas that experience dry seasons.
- 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.
- 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).
- 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
- 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
- chemical
-
uses smells or other chemicals 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.
- coprophage
-
an animal that mainly eats the dung of other animals
References
Ballesteros, F., J. Benito, P. Gonzalez-Quiros. 1996. Status, Management and Conservation of Broom Hare ( Lepus castroviejoi ) in the Cantabrian Mountains (Northwest of Spain). Proceedings of the International Union of Game Biologists XXII Congress "The Game and the Man", 1: 123-127.
Geldhamer, G., L. Drickamer, S. Vessey, J. Merritt. 2004. Mammalogy: Adaptation, Diversity, and Ecology . New York, New York, United States: McGraw-Hill.
Lagomorph Specialist Group, 1996. "IUCN red list of threatened species" (On-line). Accessed October 12, 2006 at http://www.iucnredlist.org/search/details.php/11797/all .
Palacios, F. 1989. Biometric and Morphologic Features of the Species of the Genus lepus in Spain. Mammalia , 53 (2): 227-264.
Palacios, F. 1976. Description of a New Species of Hare ( Lepus castroviejoi ) Endemic of the Cantabrian Mountains. Acta Vertebrata , 3 (2): 205-223.
Wilson, D. 1993. Mammal Species of the World . Washington, USA: Smithsonian Institute.