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Lepus callotis body length ranges from 432 to 598 mm, tail length from 47 to 92 mm, hid foot length 118 to 141 mm, and ear length from 108 to 149 mm. The forepaws have five toes while the back paws have four. All toes end in sturdy claws. Some sexual dimorphism is present; females are generally larger than the males.
The dorsal pelage of Lepus callotis is short and coarse. The color is pale ochraceous-cinammon color heavily mixed with black. The underparts are white with traces of colored patches in front of the thighs. The tail has black hairs tipped with white on the upper surface and is all white on the underside. The sides are distinguishable from other Lepus species in that they are pure white. The rump and thighs are also white and lined with a few black hairs. A median black line concealed by sooty, brownish, and white-tipped hairs divides the rump. The limbs are white, but their outer surface is stained a buffy color. The gular pouch is also buffy while the sides of the neck and shoulders become more ochraceous in color. The head is a cream buff color, mixed with black, with whitish areas around the sides of the eyes. The ears are covered with short yellowish brown hairs that are mixed with black anteriorly and white posteriorly. The apex of the ear is white-tipped. Below the apex of the ear is a tuft of black hair. The long fringes on the anterior edge of the ear are ochraceous buff while the fringes of the tip of the ear and posterior edge are white. The inner surface of the ear is almost bare except for a dusky spot on the posterior border. The nape is ochraceous buff in color.
The winter pelage of Lepus callotis is iron gray on the rump, back, and outside of the hind legs. The front of the hind legs and the tops of the feet are white. The front of the fore legs and top of the forefeet range from a pale gray to a dull iron-gray. The median black line of the rump is not strongly distinguishable and does not extend much further than the base of the tail. The top, sides, and tip of the tail are black while the underside is two-thirds white and one-third black. The top and sides of the head and back are dark-pinkish buff overlaid with black. The nape is usually black. The ears are dark bluff, black, and white. The front border of the ears are fringed with buff or ochraceous buff hairs, and the posterior border and tip are white. The underside of the neck is dark grayish bluff and the remaining underparts, including the flanks, are white.
Range mass: 2 to 3 kg.
Range length: 432 to 598 mm.
Other Physical Features: endothermic ; homoiothermic; bilateral symmetry
Sexual Dimorphism: female larger
Lepus callotis inhabit high plateaus at high elevations, including the grassy plains of southwestern New Mexico and the open plains of the southern Mexican tableland. They avoid hilly areas by selecting for level grassland topography with few shrubs.
Habitat Regions: temperate ; terrestrial
Terrestrial Biomes: savanna or grassland
Lepus callotis ranges from southern New Mexico to northwestern and central Mexico.
Biogeographic Regions: nearctic (Native )
The diet of Lepus callotis consists primarily of grasses including buffalograss, tabosagrass, fiddleneck, wolftail, blue grama, vine mesquite, ring muhly, wooly Indian wheat, and Wright buckwheat. The significant non-grass item found in their diets was sedge nutgrass.
Plant Foods: leaves; wood, bark, or stems
Primary Diet: herbivore (Folivore , Granivore )
In general, various species of Lepus are used as food, and their fur may be used in manufacturing felt or for trimming gloves and other garments. No specific economic importance is noted for Lepus callotis.
Positive Impacts: food ; body parts are source of valuable material
Species of Lepus that live in settled areas are often considered pests because of the damage they to crops, orchards, and young forest trees. No specific adverse economic effects are noted for Lepus callotis (Grizmek 1990; Nowak 1999).
Lepus callotis is considered endangered throughout its range in Mexico and southwestern New Mexico. Lepus callotis commonly comes into contact with agriculture. As a result, the overgrazing of domestic livestock may be one of the factors contributing to its decline and the apparent replacement by Lepus californicus, which has been highly adaptable to these habitat changes. Prospects for the survival of Lepus callotis in many parts of its range are considered poor.
US Federal List: endangered
CITES: no special status
IUCN Red List of Threatened Species: near threatened
Lepus callotis has three types of vocalizations. The alarm or fear reaction consists of a high-pitched scream. Another sound, emitted by males in a pair when approached by an outside intruding male, is a series of harsh grunts until the intruder leaves or is chased away. A third vocalization, consisting of a trilling grunt is heard during the sexual chase of Lepus callotis, however, it is not known which member of the pair makes this sound.
Communication Channels: acoustic ; chemical
Perception Channels: visual ; tactile ; acoustic ; chemical
The breeding season of Lepus callotis is a minimum of 18 weeks, occurring from mid-April to mid-August. The average number of young per litter is 2.2. The young tend to have a soft, woolly coat in early life and attain sexual maturity at a rapid rate. Breeding in Lepus does not begin within the first calendar year following their birth.
Breeding season: Breeding occurs from mid-April to mid-August.
Average number of offspring: 2.2.
Key Reproductive Features: iteroparous ; seasonal breeding ; gonochoric/gonochoristic/dioecious (sexes separate); sexual ; viviparous
Parental Investment: precocial
Ar c'had kostezioù gwenn (Lepus callotis) a zo ur bronneg geotdebrer hag a vev er Stadoù-Unanet (Arizona) hag e Mec'hiko.
a vo kavet e Wikimedia Commons.
Ar c'had kostezioù gwenn (Lepus callotis) a zo ur bronneg geotdebrer hag a vev er Stadoù-Unanet (Arizona) hag e Mec'hiko.
La llebre de flancs blancs (Lepus callotis) és una llebre originària d'una regió limitada de Nord-amèrica. La seva difusió només s'estén des del sud de Nou Mèxic fins al nord-oest i centre de Mèxic. De fet, aquest animal és considerat amenaçat a Nou Mèxic, amb una població en declivi en els últims anys.
Der Weißflankenhase (Lepus callotis) ist eine Art der Echten Hasen innerhalb der Hasentiere. Sein Verbreitungsgebiet erstreckt sich vom äußersten Süden des US-Bundesstaates New Mexico bis tief nach Zentralmexiko.
Der Weißflankenhase erreicht eine Körperlänge von 43,2 bis 59,8 Zentimetern mit einer Schwanzlänge von etwa 4,7 bis 9,2 Zentimetern. Die Ohren haben eine Länge von 10,8 bis 14,9 Zentimeter und die Füße sind 11,8 bis 14,1 Zentimeter lang. Die Weibchen sind dabei in der Regel etwas größer als die Männchen.[1][2]
Das Fell der Tiere ist sehr kurz und rau; es ist ocker- bis zimtfarben mit starken Schwarzanteilen. Auffällig sind die weiß gefärbten Körperseiten des Hasen und auch die Bauchseite, der Rumpf und die Oberschenkel sind weiß mit einigen schwarzen Haaren an den Hüften und am Hinterleib. Auf dem Rumpf ist ein medianer Aalstrich durch eine Linie dunkler, rußig-brauner Haare mit weißen Spitzen angedeutet. Der Schwanz besitzt an der Oberseite schwarze Haare mit weißen Spitzen und ist an der Unterseite ebenfalls weiß. Die Gliedmaßen sind an der Innenseite weiß und außen hellbraun gefärbt. Das Gesicht ist ocker- bis sandbraun mit schwarzen und weißen Anteilen, die Ohren sind hell gerandet. Im Winter wird das Fell grau bis eisengrau mit dunkleren Anteilen.[1][2]
Die Hinterpfoten besitzen nur vier Zehen, während an den Vorderpfoten fünf Zehen ausgebildet sind. Alle Zehen sind mit kurzen Krallen ausgestattet.[1]
Das Verbreitungsgebiet des Weißflankenhasen beschränkt sich auf Mexiko und den äußersten Südwestens von New Mexico in den Vereinigten Staaten. In Mexico reicht es bis Oaxaca und umfasst dabei Teile der Bundesstaaten Aguascalientes, Chihuahua, Durango, Guanajuato, Guerrero, Hidalgo, Jalisco, México, Michoacán, Morelos, Oaxaca, Puebla, Querétaro, San Luis Potosí, Sonora, Tlaxcala, Veracruz und Zacatecas. In Mexiko-Stadt, dem Distrito Federal, ist die Art wahrscheinlich ausgestorben.[3]
Die Unterart L. c. gaillardi hat eine unregelmäßige Verbreitung von New Mexico bis Durango, wobei sie in Mexiko in zwei isolierten Gebieten vorkommt. In New Mexico beschränkt sich das Gebiet auf zwei Bereiche in Höhen zwischen 1.500 und 1.600 Metern im Hidalgo County, eine unbestätigte Sichtung stammt zudem aus den Huachuca Mountains im Bereich des Coronado National Forest im Cochise County, Arizona. Die Gesamtverbreitungsfläche in den Vereinigten Staaten wird auf maximal 120 km2 geschätzt. In Mexiko kommt die Unterart zum einen in einem Gebiet im zentralen Chihuahua und zum anderen vom südlichen Chihuahua bis zum nördlichen und zentralen Durango vor. Die zweite Unterart L. c. callotis nimmt das restliche Verbreitungsgebiet vom nördlichen Durango über Zentralmexiko bis zum nördlichen Guerrero und Oaxaca ein.[3] Dabei kommt der Hase bis in Höhen von 2.550 Metern in Puebla und etwa 750 Metern in Morelos vor.[3][2]
Die Tiere sind ausnahmslos nachtaktiv. Sie können häufig paarweise beobachtet werden, vor allem zur Paarungszeit.[3]
Weißflankenhasen ernähren sich vor allem von Gräsern wie Bouteloua dactyloides und Bouteloua gracilis sowie verschiedenen Blütenpflanzen wie Amsinckia.[1] In besonders trockenen Zeiten fressen sie zudem Wurzeln.[3]
Die Paarungszeit der Weißflankenhasen liegt im April bis August. Die Weibchen haben dabei mindestens drei Würfe im Jahr. Die Würfe umfassen ein bis vier, durchschnittlich 2,2 Jungtiere. Diese kommen in offenen Nestern oberirdisch und wie bei allen Echten Hasen mit einem vollständigen Fell und offenen Augen als Nestflüchter auf die Welt, sind also direkt nach der Geburt aktiv. Die Geschlechtsreife erreichen sie zur kommenden Paarungszeit.[1]
Der Weißflankenhase ist eine Art innerhalb der Echten Hasen der Gattung Lepus. Als Unterarten werden die nördliche Form L. c. gaillardi und der südliche L. c. callotis anerkannt.[3]
Die Art wird von der International Union for Conservation of Nature and Natural Resources (IUCN) aufgrund der Größe des Verbreitungsgebietes und der Bestandsgröße als Art der Vorwarnliste (Near Threatened) eingeschätzt. Für einige Regionen ist ein Rückgang der Populationen aufgrund von Lebensraumveränderungen sowie eine teilweise Verdrängung durch den Eselhasen (Lepus californicus) bekannt.[3]
Der Weißflankenhase (Lepus callotis) ist eine Art der Echten Hasen innerhalb der Hasentiere. Sein Verbreitungsgebiet erstreckt sich vom äußersten Süden des US-Bundesstaates New Mexico bis tief nach Zentralmexiko.
Il-Liebru tal-ġnub bojod li hu magħruf xjentifikament bħala Lepus callotis huwa speċi ta' mammiferu plaċentat tal-familja Leporidae (leporidu), fl-ordni Lagomorpha (lagomorfu) u jinsab mifrux fil-kontinent tal-Amerika ta' Fuq.
Dan il-liebru huwa speċi b'distribuzzjoni limitata fin-Nofsinnhar tal-istat ta' New Mexico, fl-Istati Uniti u fil-Majjistral u fiċ-Ċentru tal-Messiku. Il-Liebru tal-ġnub bojod jippreferi artijiet b'elevazzjoni għolja miftuħa bil-ħaxix u jiskarta l-muntanji, l-għoljiet, il-foresti u l-arbuxelli.
Il-Liebru tal-ġnub bojod huwa it-tieni l-akbar speċi ta' liebru fil-kontinent tal-Amerika ta' Fuq wara l-Fenek ħmar antilop.
Dan il-liebru huwa wieħed minn 8 speċijiet li qegħdin ikklassifikati fis-sottoġeneru Proeulagus u l-ispeċi maqsuma minn ta' l-inqas f'żewġ sottospeċi.
Il-Liebru tal-ġnub bojod li hu magħruf xjentifikament bħala Lepus callotis huwa speċi ta' mammiferu plaċentat tal-familja Leporidae (leporidu), fl-ordni Lagomorpha (lagomorfu) u jinsab mifrux fil-kontinent tal-Amerika ta' Fuq.
Dan il-liebru huwa speċi b'distribuzzjoni limitata fin-Nofsinnhar tal-istat ta' New Mexico, fl-Istati Uniti u fil-Majjistral u fiċ-Ċentru tal-Messiku. Il-Liebru tal-ġnub bojod jippreferi artijiet b'elevazzjoni għolja miftuħa bil-ħaxix u jiskarta l-muntanji, l-għoljiet, il-foresti u l-arbuxelli.
Il-Liebru tal-ġnub bojod huwa it-tieni l-akbar speċi ta' liebru fil-kontinent tal-Amerika ta' Fuq wara l-Fenek ħmar antilop.
வெள்ளைக் குழிமுயல் (Lepus callotis) அல்லது மெக்சிகோ முயல் என்பது வட அமெரிக்காவின் குறிப்பிட்ட பகுதிகளில் காணப்படும் ஒரு குழிமுயல் ஆகும். இது தெற்கு புது மெக்சிகோவில் இருந்து வடமேற்கு மற்றும் நடு மெக்சிகோ வரை காணப்படுகிறது. புது மெக்சிகோவில் இந்த முயல் அச்சுறுத்தப்பட்ட இனமாக கருதப்படுகிறது. அங்கு இவற்றின் எண்ணிக்கை கடந்த வருடங்களில் குறைந்துள்ளது.
T32P2-11ApH-Traphagen.pdf (PDF), retrieved 2013-01-11
வெள்ளைக் குழிமுயல் (Lepus callotis) அல்லது மெக்சிகோ முயல் என்பது வட அமெரிக்காவின் குறிப்பிட்ட பகுதிகளில் காணப்படும் ஒரு குழிமுயல் ஆகும். இது தெற்கு புது மெக்சிகோவில் இருந்து வடமேற்கு மற்றும் நடு மெக்சிகோ வரை காணப்படுகிறது. புது மெக்சிகோவில் இந்த முயல் அச்சுறுத்தப்பட்ட இனமாக கருதப்படுகிறது. அங்கு இவற்றின் எண்ணிக்கை கடந்த வருடங்களில் குறைந்துள்ளது.
The white-sided jackrabbit (Lepus callotis), also known as the Mexican hare, is a jackrabbit found in a limited range in North America, from southern New Mexico to northwestern and central Mexico. The animal is considered threatened in New Mexico, with its numbers in decline in recent years; its presence is uncertain in Arizona.
The white-sided jackrabbit inhabits plateaus at high elevations, including the grassy plains of southwestern New Mexico and the open plains of the southern Mexican tableland. It avoids areas of hills or mountains. It prefers level lands full of grasses and also avoids areas with trees and shrubs.
The white-sided jackrabbit's body length ranges from 16 to 30 in (41 to 76 cm) long. Its tail grows to lengths of 1 to 4 in (2.5 to 10.2 cm). Its legs grow from 4 to 6 in (10 to 15 cm) in the front and the back legs can grow from 6 to 12 in (15 to 30 cm) long. The white-sided jackrabbit's ears grow 2 to 6 in (5.1 to 15.2 cm) when fully grown. The fore paws have five toes while the back paws have four. All toes end in sturdy claws. Some sexual dimorphism is present in this species; females are generally larger than the males.
The dorsal pelage of the white-sided jackrabbit is short and coarse. The color is pale cinnamon color heavily mixed with black. The underparts are white with traces of colored patches in front of the thighs. The tail has black hairs tipped with white on the upper surface and is all white on the underside. The sides are distinguishable from other species in that they are pure white, the source of their name. The rump and thighs are also white and lined with a few black hairs. A median black line concealed by sooty, brownish, and white-tipped hairs divides the rump. The limbs are white, but their outer surfaces are stained a buff color. The gular pouch is also buffy while the sides of the neck and shoulders become more ochraceous in color. The head is a cream buff color, mixed with black, with whitish areas around the sides of the eyes. The ears are covered with short yellowish-brown hairs that are mixed with black anteriorly and white posteriorly. The apex of the ear is white-tipped. Below the apex of the ear is a tuft of black hair. The long fringes on the anterior edge of the ear are ochraceous buff, while the fringes of the tip of the ear and posterior edge are white. The inner surface of the ear is almost bare except for a dusky spot on the posterior border. The nape is ochraceous buff in color.
The winter pelage of the white-sided jackrabbit is iron gray on the rump, back, and outside of the hind legs. The front of the hind legs and the tops of the feet are white. The front of the fore legs and top of the fore feet range from a pale gray to a dull iron-gray. The median black line of the rump is not strongly distinguishable and does not extend much further than the base of the tail. The top, sides, and tip of the tail are black, while the underside is two-thirds white and one-third black. The top and sides of the head and back are dark-pinkish buff overlaid with black. The nape is usually black. The ears are dark bluff, black, and white. The front border of the ears are fringed with buff or ochraceous buff hairs, and the posterior border and tip are white. The underside of the neck is dark grayish bluff and the remaining underparts, including the flanks, are white.
The breeding season of the white-sided jackrabbit is a minimum of 18 weeks, occurring from mid-April to mid-August. The average number of young per litter is around two. The young tend to have a soft, woolly coat in early life and attain sexual maturity at a rapid rate. Breeding in L. callotis does not begin within the first calendar year following its birth.
Most activity of the white-sided jackrabbit occurs during the night or at dusk, particularly on clear nights with bright moonlight. Its activity may be limited by cloud cover, precipitation, and wind, but temperature has little effect. Its escape behavior consists of alternately flashing its white sides when running away. The white-sided jackrabbit, when escaping, makes rather long, high leaps. When startled by or alarmed by a predator, it leaps straight upwards while extending the hind legs and flashing the white sides. In its resting position, a white-sided jackrabbit is camouflaged with its surroundings. The long hind legs and feet are adapted for speed, giving the animal lift and an ability to run in a zig-zag fashion that surpasses its pursuers. The long ears serve to locate sound, as well as regulate temperature when they are raised like a fan to catch passing breezes in hot conditions. The eyes, like those of most nocturnal or crepuscular animals, are laterally arranged, giving them a complete field of vision (360°). As a result, approaching danger can be perceived in advance.
A conspicuous trait of the white-sided jackrabbit is its tendency to be found in pairs, usually one male and one female. Its pair bond is most evident during the breeding season. After establishment of the pair bond, the male defends the pair from other intruding males. The purpose of such pair bonds may be to keep the sexes together in areas of low density. The members of the pair are usually within 15–20 ft of each other and run together when approached by intruders. The pair bond may not be broken during pregnancy.
The white-sided jackrabbit constructs and uses shelter forms averaging 15 in (38 cm) in length, 20 in (51 cm) in width, and 7–8 in (18–20 cm) in depth. The shelter form is usually located in clumps of grass and surrounded by dense stands of tobosa grass. The white-sided jackrabbit may also occupy underground shelters, but this behavior is rare. It forages by chewing and pulling grass blades near the ground until they are either uprooted or broken off. The food is ingested by chewing the grass sticking out of the mouth, with the head raised and the body sitting in a crouched position. The fore paws are not used in feeding except to brace against the ground as the grass is bitten off or uprooted. When eating certain nutgrass, however, the fore paws are used to excavate the bulbous tubers, leaving behind oval foraging depressions in which fecal pellets are often deposited.
The white-sided jackrabbit has three types of vocalizations. The alarm or fear reaction consists of a high-pitched scream. Another sound, emitted by males in a pair when approached by an outside intruding male, is a series of harsh grunts until the intruder leaves or is chased away. A third vocalization, consisting of a trilling grunt, is heard during the sexual chase of the white-sided jackrabbit, but it is not known which member of the pair makes this sound.
The diet of the white-sided jackrabbit consists primarily of grasses including buffalograss, tobosagrass, fiddleneck, wolftail, blue grama, vine mesquite, ring muhly, wooly Indian wheat, and Wright buckwheat. The significant nongrass item found in their diets was sedge nutgrass.
Although many species of jackrabbits and hares are considered pests because they damage crops, fields, and orchards, the white-sided jackrabbit is usually not considered a pest and has no known adverse effects on human property. Many species are also sought after for their meat and fur. This is also untrue of the white-sided jackrabbit and it is protected in most of its habitat region.
A 2011 study by the New Mexico Department of Game and Fish determined that the primary cause of decline of the white sided jackrabbit in New Mexico was due to road kill caused by nighttime US Border Patrol traffic.[3]
The white-sided jackrabbit is considered endangered throughout its range in Mexico, and is listed as threatened by New Mexico, where it occurs in the southwest, but enjoys no federal protection in the United States. A 2011 study by the state of New Mexico estimated the population to be 45 individuals. The white-sided jackrabbit commonly comes into contact with agriculture. As a result, the overgrazing of domestic livestock may be one of the factors contributing to its decline and the apparent replacement by the black-tailed jackrabbit (Lepus californicus), which has been highly adaptable to these habitat changes. Prospects for the survival of the white-sided jackrabbit in many parts of its range are considered poor at best.
The two subspecies of this jackrabbit are:
{{cite web}}: CS1 maint: archived copy as title (link) T32P2-11ApH-Traphagen.pdf (PDF), retrieved 2013-01-11
The white-sided jackrabbit (Lepus callotis), also known as the Mexican hare, is a jackrabbit found in a limited range in North America, from southern New Mexico to northwestern and central Mexico. The animal is considered threatened in New Mexico, with its numbers in decline in recent years; its presence is uncertain in Arizona.
La liebre torda o de flancos blancos (Lepus callotis)[1] es una especie de mamífero lagomorfo de la familia Leporidae originaria de una región limitada de Norteamérica. Su difusión solo se extiende desde el sur de Nuevo México, hasta el noroeste y centro de México. De hecho, este animal se considera amenazado en Nuevo México, con una población en declive en los últimos años.
La liebre de flancos blancos habita en mesetas, en lugares con bastante altitud, incluida las llanuras del suroeste de Nuevo México y las llanuras de la meseta sur de México. Evita las zonas montañosas.Prefiere las tierras llanas de pastos y también suele evitar las zonas de bosques y arbustos
La temporada de reproducción de este liebre dura un mínimo de 18 semanas, desde mediados de abril a mediados de agosto. Por término medio suele tener 2 crías en cada camada. Las crías tienen un pelo suave y lanudo en sus primeros días y alcanzan la madurez sexual muy rápido, y empiezan a reproducirse al año de su nacimiento.
Existen dos subespecies dentro de esta especie:
Datos: Q1467672
Multimedia:
Especies: Lepus callotis
La liebre torda o de flancos blancos (Lepus callotis) es una especie de mamífero lagomorfo de la familia Leporidae originaria de una región limitada de Norteamérica. Su difusión solo se extiende desde el sur de Nuevo México, hasta el noroeste y centro de México. De hecho, este animal se considera amenazado en Nuevo México, con una población en declive en los últimos años.
Lepus callotis Lepus generoko animalia da. Lagomorpharen barruko Leporidae familian sailkatuta dago.
Lepus callotis Lepus generoko animalia da. Lagomorpharen barruko Leporidae familian sailkatuta dago.
Valkokylkijänis (Lepus callotis) on keskikokoinen Pohjois-Amerikassa elävä jänislaji. Se painaa noin 2,7 kilogrammaa. Sillä on suhteellisen lyhyet takajalat ja valtavat korvat. Valkokylkijäniksen selkä on tumma, takapuoli harmaa, kyljet ja vatsapuoli vaaleat. Hännän yläpinta on musta.[2]
Valkokylkijänistä tavataan lähinnä Meksikossa ja pienellä alueella Yhdysvaltojen puolella.[1]
Nisäkäsnimistötoimikunta on ehdottanut lajin uudeksi suomenkieliseksi nimeksi ”valkokuvejänistä”.[3]
Valkokylkijänis (Lepus callotis) on keskikokoinen Pohjois-Amerikassa elävä jänislaji. Se painaa noin 2,7 kilogrammaa. Sillä on suhteellisen lyhyet takajalat ja valtavat korvat. Valkokylkijäniksen selkä on tumma, takapuoli harmaa, kyljet ja vatsapuoli vaaleat. Hännän yläpinta on musta.
Valkokylkijänistä tavataan lähinnä Meksikossa ja pienellä alueella Yhdysvaltojen puolella.
Nisäkäsnimistötoimikunta on ehdottanut lajin uudeksi suomenkieliseksi nimeksi ”valkokuvejänistä”.
La lepre dai fianchi bianchi (Lepus callotis Wagler, 1830) è un mammifero lagomorfo della famiglia dei Leporidi.
Con due sottospecie (Lepus callotis callotis e Lepus callotis gaillardi) la specie è diffusa dalla parte centro-meridionale degli Stati Uniti (Nuovo Messico meridionale) al Messico centrale. Colonizza le aree pianeggianti a una certa quota, evitando le aree collinari e quelle cespugliose.
Misura circa 50 cm di lunghezza, per un peso medio di due chili e mezzo.
Il pelo della lepre dai fianchi bianchi è corto ed ispido sul dorso, di colore giallo-brunastro e forti brizzolature nere. Il ventre è invece bianco con una serie di maculature sui fianchi, dalle quali la specie prende il nome comune: anche il posteriore è bianco, con una banda nera che dal sottocoda raggiunge i genitali. La coda, lunga qualche centimetro e ricoperta da un fiocco di pelo, è bianca nella parte inferiore e nera brizzolata di bianco su quella superiore. Le orecchie, marroncine con brizzolature nere sulla superficie anteriore e bianche su quella posteriore, hanno la punta bianca, con un ciuffetto nero subito al di sotto.
D'inverno, il mantello assume colore grigiastro su dorso e posteriore, bianco su ventre, punta delle zampe e ginocchia, mentre la coda è quasi del tutto nera.
Le femmine, a parità di età, sono leggermente più grosse e pesanti rispetto ai maschi.
Si tratta di animali attivi principalmente durante la notte, ma durante le giornate nuvolose è possibile osservarli anche di giorno. Grazie alle lunghe orecchie, sono in grado di captare anche rumori assai flebili, il che permette loro di percepire la presenza di un predatore anche a distanza: in caso di sospetto, l'animale blocca i propri movimenti, in attesa di vedere l'intruso. Se attaccati, fuggono compiendo lunghi balzi e mostrando ritmicamente le parti bianche del corpo: spesso si muovono a zig zag o compiono salti verticali allungando le zampe posteriori verso il basso allo scopo di confondere l'assalitore. Le orecchie servono anche da dispersori di calore in eccesso dei quali l'animale si serve durante le giornate particolarmente calde: in questi casi, la lepre dai fianchi bianchi si erge sulle zampe posteriori in modo da avere le orecchie appena al di sopra dell'erba e ricevere eventuali aliti di vento.
A differenza di molte altre specie di lepre, che hanno abitudini solitarie, questi animali sono soliti vivere in coppie, comportamento questo probabilmente evoluto dall'animale per permettergli di riprodursi in aree dove la densità è assai bassa: i due partner si muovono generalmente stando a qualche metro l'uno dall'altro, ma in caso di pericolo essi fuggono assieme.
Questa specie si serve di fosse che scava nel terreno come rifugio durante i periodi di inattività: tali fosse, di forma ovale, sono, lunghe una quarantina di centimetri e larghe venti, per una profondità massima di 10 cm. In alcuni casi, questi animali sono stati osservati occupare tane abbandonate o condividerle con altri animali[1].
La dieta di questi animali è esclusivamente vegetariana: in particolare, essi si nutrono di erbe di vario tipo e germogli.
La stagione riproduttiva, in questa specie, va da aprile ad agosto: la gestazione dura circa quattro mesi e mezzo, al termine dei quali vengono dati alla luce una media di tre cuccioli che sono già in grado di vedere e ricoperti da un mantello soffice e di consistenza lanosa. Nonostante i cuccioli siano maturi sessualmente già qualche mese dopo la nascita, essi generalmente non si riproducono alla successiva stagione riproduttiva, ma attendono un altro anno per farlo.
La lepre dai fianchi bianchi (Lepus callotis Wagler, 1830) è un mammifero lagomorfo della famiglia dei Leporidi.
Baltašonis kiškis, arba meksikinis kiškis (lot. Lepus callotis, angl. White-sided jackrabbit) – kiškinių šeimos žinduolis, gyvenantis pietiniuose, centriniuose bei šiaurės vakariniuose Meksikos regionuose, tai pat vietomis Naujojoje Meksikoje (JAV).
Užauga 43–60 cm ilgio. Sveria 2–3 kg. Priekinės letenos turi po penkis pirščiukus, užpakalinės – po keturis. Nugaros kailis trumpas ir šiurkštus. Šonai visiškai balti, taip pat šlaunys ir pasturgalis (vietomis su juodais plaukeliais). Nugara, krūtinė, galva rudos (smėlinės) spalvos su baltais intarpais ir juodais plaukeliais. Patelės paprastai šiek tiek didesnės už patinus.
Baltašoniai kiškiai laikosi aukštai plokščiakalniuose, kalnų stepėse, kur mažai krūmų. Guolį susisuka iš žolių.
Rūšis nyksta dėl besiplečiančių žemdirbystės plotų, juos išstumia labiau prisitaikantys kaliforniniai kiškiai.
Dauginimosi sezonas trunka nuo balandžio vidurio iki rugpjūčio vidurio. Vienoje vadoje vidutiniškai būna po 2 kiškiukus.
Baltašoniai kiškiai veiklūs naktimis (ypač per pilnatį) ir sutemose. Ilgomis ausimis valdo kūno temperatūrą (esant karštam orui per jas pučiantis vėjas vėsina kraują). Dažniausiai gyvena poromis. Skleidžia trejopus garsus – pavojaus, siekiant nuvyti kitą įsibrovusį kiškį bei poravimosi metu.
Maitinasi įvairiomis žolėmis: šunažoliniu striepsneniu, grakščiuoju striepsneniu, paprastuoju plėvenu, amsinikija, pūkvija ir kt. Prie gyvenviečių apgraužia pasėlius, atžalynus.
Baltašonis kiškis, arba meksikinis kiškis (lot. Lepus callotis, angl. White-sided jackrabbit) – kiškinių šeimos žinduolis, gyvenantis pietiniuose, centriniuose bei šiaurės vakariniuose Meksikos regionuose, tai pat vietomis Naujojoje Meksikoje (JAV).
Arnab Jack Bertepi Putih (Lepus callotis) ialah sejenis arnab liar yang ditemui di sebuah kawasan yang terbatas di Amerika Utara, iaitu taburannya hanya terbentang dari New Mexico selatan hingga Mexico barat laut dan tengah. Haiwan ini dikira sebagai spesies terancam di New Mexico kerana bilangannya yang makin berkurangan akhir-akhir ini.
Arnab ini terbahagi kepada dua subspesies:
Arnab Jack Bertepi Putih (Lepus callotis) ialah sejenis arnab liar yang ditemui di sebuah kawasan yang terbatas di Amerika Utara, iaitu taburannya hanya terbentang dari New Mexico selatan hingga Mexico barat laut dan tengah. Haiwan ini dikira sebagai spesies terancam di New Mexico kerana bilangannya yang makin berkurangan akhir-akhir ini.
De witflankhaas (Lepus callotis) is een zoogdier uit de familie van de hazen en konijnen (Leporidae). De wetenschappelijke naam van de soort werd voor het eerst geldig gepubliceerd door Wagler in 1830.
Bronnen, noten en/of referenties
A Lebre-de-flanco-branco (Lepus callotis) é um leporídeo da América do Norte.
A Lebre-de-flanco-branco (Lepus callotis) é um leporídeo da América do Norte.
Östlig antilophare eller Sierrahare (Lepus callotis) är ett däggdjur i familjen harar som förekommer i Mexiko och sydligaste USA.
Individerna når en kroppslängd av 43,2 till 59,8cm och därtill kommer en 4,7 till 9,2 cm lång svans. Öronens längd ligger mellan 10,8 och 14,9 cm och fötternas längd mellan 11,8 och 14,1 cm. Honor är allmänt något större än hannar.[2][3]
Den korta grova pälsen har allmänt en ockra till kanel färg, ofta med svarta skuggor. Påfallande är vita ställen vid kroppssidorna och buken, även pälsen vid bakfötternas ansats är vit. På ryggens mitt finns en längsgående gråbrun strimma med svarta hårspetsar. Håren på svansen är vite men på ovansidan har de svarta spetsar. Extremiteterna är på insidan vita och på utsidan brunaktiga. Ansiktet är sandgrå och öronen har vitaktiga kanter. Vinterpälsen är mera gråaktig.[2][3]
Vid baktassarna har den östliga antilopharen fyra tår och vid framtassarna fem tår, alla tår bär korta klor.[2]
I USA förekommer arten bara i sydvästligaste delen av delstaten New Mexico. I Mexiko sträcker sig utbredningsområdet söderut till delstaten Oaxaca. Denna hare hittas dessutom i delstaterna Aguascalientes, Chihuahua, Durango, Guanajuato, Guerrero, Hidalgo, Jalisco, México, Michoacán, Morelos, Puebla, Querétaro, San Luis Potosí, Sonora, Tlaxcala, Veracruz och Zacatecas. I Mexico City (Distrito Federal) är arten troligtvis utdöd.[1]
Östlig antilophare föredrar gräsmark med glest fördelade buskar. Den vistas även i odlade områden. I bergstrakter förekommer den upp till 2 550 meter över havet.[1]
Östlig antilophare är nästan uteslutande aktiv på natten. Individerna syns ofta i par, främst under parningstiden.[1]
Födan utgörs huvudsakligen av gräs av arterna Bouteloua dactyloides och Bouteloua gracilis. Dessutom äter haren arter av örtsläktet Amsinckia.[2] Under särskild torra tider kan den även äta rötter.[1]
Under parningstiden som sträcker sig från april till augusti föder honor minst tre kullar. Per kull föds en till fyra ungar (genomsnitt 2,2). Födelsen sker i en enkel bo på marken och ungarna har redan päls och öppna ögon. Under följande parningstid är ungarna könsmogna.[2]
Arten räknas inom familjen harar till släktet Lepus. Vanligen skiljs mellan den nordliga underarten L. c. gaillardi och den sydliga underarten L. c. callotis.[1]
Östlig antilophare hotas av habitatförstörelser och den blir undanträngt av den svartsvansade åsneharen (Lepus californicus). IUCN listar arten som nära hotad (NT) då den fortfarande har ett ganska stort utbredningsområde.[1]
Östlig antilophare eller Sierrahare (Lepus callotis) är ett däggdjur i familjen harar som förekommer i Mexiko och sydligaste USA.
Країни проживання: Мексика (Агуаскальєнтес, Чіуауа, Дуранго, Гуанахуато, Герреро, Ідальго, Халіско, Мексика Федеральний Округ — можливо вимерли, штат Мехіко, Мічоакан, Морелос, Оахака, Пуебла, Керетаро, Сан-Луїс-Потосі, Сонора, Тласкала, Веракрус, Сакатекас), США (Нью-Мексико). спостерігається на висоті 2550 м у Пуебла і 750 м в Морелос. Живе на відкритих луках.
Їх їжею майже виключно є трави, але раціон може складатися з коренів у суху погоду.
Сезон розмноження від середини квітня до серпня, а середній розмір приплоду становить 2,2 (діапазон 1-4). Самиця здатна давати принаймні 3 приплоди на рік під час сезону розмноження.
Середня загальна довжина цього виду є 55 см. Хвіст від 2,5 до 10 см у довжину, вуха від 5,1 до 15 см. Передні лапи мають п'ять пальців у той час як задні лапи — чотири. Всі пальці мають міцні кігті. Деякий статевий диморфізм присутній у даного виду, як правило, самиці більші за самців. Спинне хутро коротке і грубе, на спині жовто-коричнево-чорне, черево й боки білі, з деякою плямистістю.
Lepus callotis là một loài động vật có vú trong họ Leporidae, bộ Thỏ. Loài này được Wagler mô tả năm 1830.[2]
Phương tiện liên quan tới Lepus callotis tại Wikimedia Commons
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Bài viết liên quan đến động vật có vú này vẫn còn sơ khai. Bạn có thể giúp Wikipedia bằng cách mở rộng nội dung để bài được hoàn chỉnh hơn. Lepus callotis là một loài động vật có vú trong họ Leporidae, bộ Thỏ. Loài này được Wagler mô tả năm 1830.
Lepus callotis Wagler, 1830
Ареал
Белобокий заяц (лат. Lepus callotis) — вид рода Lepus из отряда зайцеобразных.
Ареал: Мексика (штаты: Агуаскальентес, Чиуауа, Дуранго, Гуанахуато, Герреро, Идальго, Халиско, Федеральный Округ Мехико — возможно вымерли, штат Мехико, Мичоакан, Морелос, Оахака, Пуэбла, Керетаро, Сан-Луис-Потоси, Сонора, Тласкала, Веракрус, Сакатекас), США (штат Нью-Мексико). Обитает на высотах от 750 м в штате Морелос до 2550 м в штате Пуэбла. Живёт на открытых лугах.
Их основной пищей являются почти исключительно травянистые растения, но этот вид может питаться корнями в сухое время года и в засуху.
Сезон размножения с середины апреля до августа, а средний размер выводка составляет 2,2 (от 1 до 4 молодых). Во время периода размножения самка способна давать по крайней мере 3 приплода в год.
Средняя общая длина составляет 55,0 см. Хвост до 10 см, уши до 15 см. Передние лапы имеют пять пальцев в то время как задние лапы — четыре. Все пальцы имеют прочные когти. Некоторый половой диморфизм характерен для данного вида, как правило, самки крупнее самцов. Мех на спине короткий и грубый желтовато-коричнево-черноватого цвета, брюхо и бока белые, с некоторой пятнистостью.
Белобокий заяц (лат. Lepus callotis) — вид рода Lepus из отряда зайцеобразных.
흰줄무늬산토끼(Lepus callotis)는 토끼과에 속하는 포유류의 일종이다. 북아메리카의 뉴멕시코주 남부와 멕시코 남서부와 중부 지역 사이에서 제한적으로 발견된다. 개체수 감소때문에 뉴멕시코 지역에서 멸종 위험에 놓여 있다.[2]
2종의 아종이 알려져 있다.
