Jackrabbits are often seen as pests because they can destroy crops quickly. Jackrabbits can run as fast as 40 mph in short bursts in order to escape predators. The antelope jackrabbit's ears grow to be 14–17 cm (6 in) and it can weigh up to 9 pounds (4.1 kg). Antelope jackrabbits are solitary, nocturnal and crepuscular, but may be active on cloudy days during the day. Robustispina) Auteur : Altemus, Maria Michael Université de soutenance : University of Arizona. They may use a pheromone from a rectal gland which secretes a strong musky smell to scent mark their shelter form. They are also found in Arizona (USA) in a small southern area, mainly in the Sonoran Desert. It is found in the Nearctic and the Neotropics. Habitat Black-tailed jackrabbits occupy mixed shrub-grassland terrains and do not migrate or hibernate during winter. It is a solitary browser. , Fossil evidence places the genus Lepus in North America approximately 2.5 million years ago. , The antelope jackrabbit feeds on cacti, grasses, and other leafy vegetation. It can be found in grassy hills or plains, preferring habitats with large, desert shrubs above long grass. The antelope jackrabbit is found in a variety of tropic and subtropic habitats. It is thought that mothers hide their young in different places after birth, returning to feed them at night. They make their nests above ground.  A now extinct jackrabbit species, Lepus giganteus, was thought to exist in North America during this time. This species can also be found in more barren desert habitats. The antelope jackrabbit is found in a variety of tropic and subtropic habitats. Antelope jackrabbits can run as fast as 45 miles (72 km) per hour, and can jump as high as five-feet (1.5 m) and as far as 22-feet (6.7 m). Habitat. Antelope jackrabbits too are known for their ability to run and leap fast. Antelope jackrabbits are found mostly along Mexico’s western coast, in the states that are alongside the Pacific Ocean and the Gulf of California. Antelope Jackrabbits can be found in the southwestern United States and northern Mexico. This species also inhabits Tiburon, a small island near Sonora, a Mexican state. It’s also an important water conservation technique given the jackrabbit’s arid habitat, as it reduces the need for evaporative cooling mechanisms, such as panting or sweating, which involve the loss of water. Jackalope is a portmanteau of jackrabbit and antelope.. Jackrabbits are actually hares rather than rabbits though both are mammals in the order Lagomorpha.Wyoming is home to three species of hares, all in the genus Lepus.These are the black-tailed jackrabbit, the white-tailed jackrabbit, and the snowshoe hare.. In rare circumstances they will use sound to communicate. The antelope jackrabbit inhabits the drier areas of the desert, including creosote bush flats, mesquite grassland, and cactus plains into and beyond southern Sonora. The antelope jackrabbit has a white belly, light grey sides, a back peppered with black, and orange coloration on the neck and chest. They have been reported only in the southern state of Arizona in the United States and in a single coastal area of northwestern Mexico. 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. The antelope jackrabbit ( Lepus alleni) was one of the last large mammals described from North America (Mearns, 1890) and this species remains one of the least-studied hares. It occupies highland areas in the Sonoran Desert, and is especially common on mesas - the steep-sided tables of … It has long slender front legs and large hind feet that can be 5 inches in length. Jackrabbit Power is a Creature Power that gives its users the abilities and characteristics of an antelope jackrabbit. Antelope jackrabbits are polygynous breeders. pounds, the black-tailed jackrabbit is the third largest North American hare (after the antelope jackrabbit and the white-tailed jackrabbit). Antelope jackrabbits are important prey for medium to large terrestrial and avian predators. This summary states who is eligible for the grant, how much grant money will be awarded, current and past deadlines, Catalog of Federal Domestic Assistance (CFDA) numbers, and a sampling of similar government grants. It can also be found in the deserts of the southwest as well. Resident, Sonoran desert/grassland habitat, southern Arizona. The antelope jackrabbit is found in Arizona in the United States and the states of Chihuahua, Nayarit, Sinaloa and Sonora in Mexico. Their long ears enable them to take in their surroundings and listen for predators. They can jump 10 feet and run at 40 miles per hour. According to locals, their ears look like donkey ears. The bi-colored tail is black on top and a pale grey below. By maturity, most Antelope Jackrabbits are between 19 and 25 inches long. The Antelope jackrabbit gets its name from John Asaph Allen, a past curator at the American Museum of Natural History’s Department of Mammals and Birds. Antelope jackrabbits are folivores (leaf-eaters), graminivores (grass-eaters) and succulent plant eaters (esp. But make no mistake—these are two different species. ... white-tailed jackrabbit, Sage Grouse, Sharp-tailed Grouse, and Burrowing Owl. They show just how the Antelope Jackrabbit …  This species is large in size with long, pointed ears and a distinct coat coloration. It prefers open places with sparse grasses where it can see predators and flee if need be. It can be found in grassy hills or plains, preferring habitats with large, moderately open desert shrubs above grass that is growing well. Abstract The antelope jackrabbit (Lepus alleni) is a lagomorph indicative of Neotropic savanna and thornscrub in south-central Arizona, west-central Sonora, and western Sinaloa <1,200 m elevation. Grackle Carlos Adams, Arlington, TX. Antelope jackrabbits become reproductively mature at 2 years of age. During the breeding season, the males may fight with one another, kicking with their hind feet and boxing with their forefeet over access to females. Name. The antelope jackrabbit is found in a variety of tropic and subtropic habitats. The antelope jackrabbit inhabits the drier areas of the desert, including creosote bush flats, mesquite grassland, and … It can be found in grassy hills or plains. The Antelope jackrabbit watches for predators from almost any angle; its large eyes are placed high and back enough to provide almost a … Cottontails are true “rabbits” as their young are born without fur and with closed eyes. Hares are born with fur and are larger than rabbits. estimated antelope jackrabbit home range size, seasonal ranges, and movement patterns. Antelope Jackrabbit. A 2014 study focusing on ecology indicated that the ideal habitat for an antelope jackrabbit includes grassy ground cover and a mesquite overstory. They mainly eat fresh grass and other types of vegetation. Antelope Jackrabbit Wikipedia article -, 2. The Antelope Jackrabbit feeds mainly from evening to early morning. Jackrabbits are not uncommon in urban areas either, where they have adapted very well to human encroachment upon their habitat. It occupies highland areas in the Sonoran Desert, and is especially common on mesas - the steep-sided tables of rock that project from the ground in this region. Burt (1938) described the distribution of the antelope jackrabbit in Sonora only as lowlands below the oaks. We analyzed antelope jackrabbit habitat structure, measured vegetation characteristics, and determined whether there was a spatial association The main threat to this species is habitat loss. temperate. Antelope jackrabbit densities and abundance appear to vary over time with variations in weather, habitat quality, livestock grazing intensity, predator control, and probably other activities (Vorhies and Taylor, 1933). 3 to 4 litters can be produced each year if conditions are good. Grazing livestock reduce the abundance of grasses and herbaceous plants in areas where antelope jackrabbits reside. Studies comparing trends of antelope jackrabbit numbers in differing habitats are lacking however. In Arizona, they are typically found in places where grass is growing well under moderately high and open desert shrubs. This island is a volcanic waterless island characterized by low mountains and rocky hills. In some places, competition from livestock, habitat fragmentation and fires caused by humans are important threats. Basically, a jackrabbit is a large-eared hare with long hind legs. This is because it has some strange resemblance to the old world antelopes. The Antelope Jackrabbit is found in a variety of habitats. Black-tailed jackrabbit; The desert cottontail is found throughout the Sonoran Desert, especially in thick, brushy habitat with plenty of hiding places. and desert cottontail (Sylvilagus audubonii). It can also be found in the deserts of the southwest as well. It may also lay its ears flat to conserve body heat in cool weather. Allen's hare, Allen's jackrabbit, Blanket jack, Burro jack, Jackass rabbit, Mexican jackrabbit, Saddle jack, Wandering jackrabbit. TheAntelope Jackrabbit(Lepus alleni), found in Southern Arizona and Northwestern Mexico, is a species of North Americanhare. This species is placed in family Leporidae, which is within order Lagomorpha.Male and female antelope jackrabbits are identical in appearance. Descriptions of habitat preferences in Mexico also have been of a general nature. They live in open areas, with little to no trees or large bushes. Typically, the legumes, which have woody stems and branches, produce bipinnately compound leaves (leaves with two or more secondary veins, each with two rows of leaflets). This species does not prefer an arid climate; instead, antelope jackrabbits live in areas with summer precipitation amounts ranging from 90 mm to 360 mm. As jackrabbits are coprophagic (i.e. terrestrial. The antelope jackrabbit is found in a variety of tropic and subtropic habitats. There are three types of rabbits that can be hunted in Arizona: the cottontail rabbit, the black-tailed jackrabbit and the towering antelope jackrabbit. , There are three recognized subspecies:, 10.2305/IUCN.UK.2008.RLTS.T41272A10410552.en, https://en.wikipedia.org/w/index.php?title=Antelope_jackrabbit&oldid=992778800, Creative Commons Attribution-ShareAlike License, This page was last edited on 7 December 2020, at 01:32. Individuals can grow to 3930 g. Reproduction is dioecious. Gestation lasts about 6 weeks, and there are usually 2 young per litter, but 1 to 5 young may be born. Size: 48 - 63 cm (19 - 25 in); 2 - 5 kg (4.5 - 11 lb). They bear flowers that have five petals, then prod… Jackrabbit Populations Black-tailed jackrabbits are a common hare that inhabit American deserts, scrublands, and other open spaces, including farms. This species can also be found in more barren desert habitats. They have a big appetite and can eat one pound of food in a day. This means that one male will mate with more than one female. Usually you won’t see them … However, their ranges are extremely limited.  A baby hare, called a leveret, is born precocial; its eyes are open, it is active, and covered with fur. Based on this evidence, researchers also concluded that the black-tailed jackrabbit, though closely related to white-sided jackrabbits, exists in its own separate subclade.. It also does not radiate west of Florence, Arizona. Black-tailed jackrabbits are not actually rabbits, but are hares. In the same 2014 study, genetic analysis concluded that three Lepus species share a common white-sided jackrabbit ancestor: L. callotis (white-sided jackrabbit), L. alleni (antelope jackrabbit), and L. flavigularis (Tehuantepec jackrabbit). This species does not inhabit areas further east than the sky islands in Arizona and the Sierra Madre Occidental in Mexico. The black-tailed jackrabbits (Lepus californicus) most identifying feature is its huge ears. Females have up to four litters per year ranging from one to five individuals. They are one of five species of jackrabbit that inhabit different regions of North America. The black-tailed jack is also found in open, flat places, though not in habitats as dry as the antel… Hares are born with fur and are larger than rabbits. Such shelter helps to deal with the extreme heat of the day. The black-tailed jackrabbit (left) and antelope jackrabbit (right) are often seen idling or running together in Arizona and Mexico, where their ranges overlap. The name was later shortened to jackrabbit. In the hot season they spend their days staying out of the heat in what are known as "shelter forms," which they create by backing up under weeds, grass, or brush, or simply sitting under the shade of a mesquite trunk or cactus, preferring mesquite or creosote bush. It can be found in grassy hills or plains, preferring habitats with large, desert shrubs above long grass. Hunting for local subsistence and sport, human influence and exotic predation are further threats. Unlike the black-tailed jackrabbit which survives in less humid conditions, the antelope jackrabbit inhabits locations with higher humidity. Description: The white-tailed jackrabbit’s coat color varies with season and habitat. Habitat The antelope jackrabbit is found in a variety of habitat.