Les yeux saillants, particulièrement grands, d’un diamètre d’environ 36 millimètres et situés de chaque côté du crâne[6], donnent à l'antilope d'Amérique un champ de vision panoramique de 300 à 320 degrés. Gazelles vs Antelopes – what is the difference? Les gazelles sont de petits animaux à corps long mais à cornes de la famille des bovidés. En d'autres termes, lorsqu'ils remarquent un prédateur autour d'eux, ils commencent à se déplacer lentement et soudainement à sauter très haut et à fuir le plus rapidement possible, ce qui est une excellente adaptation comportementale pour échapper aux prédateurs. The horns on a gazelle as with other antelopes is made of keratin as well as other proteins. The animals are surrounded by the hunters, and gently driven towards this pen, in which they imperceptibly find themselves enclosed, and are then at the mercy of the hunters. Antelopes live in a range of habitats; Oryx lives in deserts, Sitatungas live in semi aquatic environments and Saigas live in extremely cold ecosystems. L'allaitement et le grooming continuent jusqu'à 4 à 5 mois, mais le développement du comportement agressif des mâles peut causer leur sevrage 2 à 3 semaines plus tôt que chez les femelles. Terms of Use and Privacy Policy: Legal. • Antelopes in general inhabit a range of ecosystems including deserts, cold environments, and around water-logged areas; on the other hand, gazelles live in deserts only. Le stotting de la gazelle. The Sonoran pronghorn has an estimated population of fewer than 300 in the United States and 200-500 in Mexico, while there are approximately 200 Peninsula pronghorn in Baja California. Pronghorns have a distinct, musky odor. It is the only surviving member of its family, Antilocapridae. Gazelles are a genus of antelope group and antelopes belong to the bovidae family. [21] Pronghorns also chew and eat (ruminate) cud. The pronghorn was first officially described by American ornithologist George Ord in 1815. Les deux sexes ont des cornes noires qui tombent et repoussent chaque année. [33] The migrating pronghorn start travel from the foothills of the Pioneer Mountains through Craters of the Moon National Monument to the Continental Divide. But what are the differences between gazelles and antelopes? Although first seen and described by Spanish explorers in the 16th century, the species was not formally recorded or scrutinized until the 1804–1806 expedition by Captain Meriwether Lewis and Second Lieutenant William Clark. [6], The present-day range of the pronghorn extends from southern Saskatchewan and Alberta in Canada south through the United States (southwestern Minnesota and central Texas west to coastal southern California)[30][31] and northern Baja California Sur, to Sonora and San Luis Potosí in northern Mexico.[7][32]. [17] Following the discovery of a few subspecies of the sharp-tailed grouse, Lewis and Clark came across the pronghorn near the mouth of the Niobrara River, in present-day Nebraska. Cependant, les couleurs sont légèrement contrastées et les visages sont plus bruns dans les gazelles que dans les springboks. Il y a 13 espèces de gazelles décrites sous trois genres, mais il est toujours en discussion parmi les taxonomistes sur le nombre d'espèces et de genres. Le Antilocapra americana est polygame et rassemble un harem de 2 à 15 femelles[5]. [6] Boone and Crockett Club member Charles Alexander Sheldon, in a letter to fellow member Grinnell, wrote, "Personally, I think that the antelope are doomed, yet every attempt should be made to save them." ANTELOPE Vs. PRONGHORN "Oh, give me a home where the Buffalo roam Where the Deer and the Antelope play; Where never is heard a discouraging word, And the sky is not clouded all day." [20][25] While it is often cited as the second-fastest land animal, second only to the African cheetah,[26] it can sustain high speeds longer than cheetahs. La longueur de celles-ci varie de 33 à 38 cm pour le mâle, et de 7 à 13 cm pour la femelle[5]. Cependant, les antilopes ne sont pas un certain clade dans la taxonomie biologique, mais le terme fait vaguement référence à tous les Bovins qui ne sont ni bovins, ni ovins, ni caprins. Le jeune garde un pelage gris jusqu'à l'âge de trois mois environ. HELP!! L'odeur dégagée par les glandes subauriculaires servent à marquer le territoire pendant la parade sexuelle. These are all within the Bovidae family. Aux États-Unis, on le rencontre dans le Grand Bassin, les Montagnes Rocheuses, le plateau de la Columbia, le bassin du Wyoming et du Missouri, le plateau du Colorado, les Hautes et les Grandes Plaines[8]. Unlike the horns of the family Bovidae, the horn sheaths of the pronghorn are branched, each sheath having a forward-pointing tine (hence the name pronghorn). Cela permet à l'animal de détecter un mouvement à plusieurs kilomètres de distance et de voir arriver ses prédateurs. [36] Females usually nurse the young about three times a day. On estime à 35 millions le nombre d'individus avant l'arrivée des Blancs[3]. agreed gazelle are a type of antelope.. but antelope do occur in africa.. sable ant. Le mâle a un masque noir et des taches noires sur le cou, ses cornes dépassent le bout de ses oreilles ; la femelle ne possède pas ces marques noires. According to many sources, the lifespan of a gazelle varies around 10 – 12 years in wild and 15 years, in captivity. [19], Pronghorns have distinct white fur on their rumps, sides, breasts, bellies, and across their throats. An ongoing study by the Lava Lake Institute for Science and Conservation and the Wildlife Conservation Society shows an overland migration route that covers more than 160 mi (260 km). Gazelle gegen Antilope. All the true antelopes are native to Africa and Asia. This is a question I get asked very often. Les pronghorns mâles pèsent entre 41 et 64 kg, les femelles entre 34 et 48 kg[4]. Cet article fournit des informations sur les antilopes en général et la gazelle en particulier. [27] Some female bands share the same summer range, and bachelor male bands form between spring and fall. Les mâles sont légèrement plus grands que les femelles. For example, wildebeest, topi, impala, oryx, nilgai, eland and kudu are all antelopes. Les mâles ont un masque facial noir et deux taches noires entre les oreilles, qui servent lors de la parade sexuelle et des démonstrations de supériorité hiérarchique. For this reason, the Arizona Antelope Foundation and others are in the process of removing the bottom barbed wire from the fences, and/or installing a barbless bottom wire. Gazelles live in grasslands and sometimes in the deserts of both Asia and Africa. There are 91 species of antelopes including Springbok, Gazelle, Oryx, Impala, Waterbuck, and many others. Antelopes including gazelles are very important animals living in Asia and Africa. Unlike deer, pronghorns possess a gallbladder.[24]. DOJ alums: Trump reelection could be 'point of no return', Trump returns to Kenosha with a familiar message, Iconic restaurant chain files for bankruptcy, For a closing argument, Trump attacks LeBron, Fox ratchets up parenting spat with estranged husband, Don't know how you caught COVID-19? Naveen is a Doctoral Student in Agroforestry, former Research Scientist and an Environmental Officer. Antilocapra americana est aujourd'hui victime de collisions avec les automobiles et de la disparition de son habitat naturel. A. a. oregona La queue du pronghorn mesure entre 7,5 et 17,8 cm[3]. Les antilopes ont des cornes non ramifiées, qui ne sont jamais perdues. In response to BIGgourami's answer, in zoological terms the only animals that should be called buffalo are the African buffalo and the Asian water buffalo. Avec la tête, elle mesure généralement entre 1 et1.50mètre[3]. Basically all bovids which are not cattle, sheep, buffalo, bison, goats or pronghorns. Sorry to make it not clear. That’s why an impala is an antelope, but not a gazelle. I walked on shore to find an old Vulcanoe [the Ionia Volcano?] This makes competition for food easier. We commonly (and technically wrongfully) call them an antelope when they are not- much in the same way we commonly use … They described the animal, which they referred to as the "Antelope" or the "Goat", as follows:[19]. • Gazelles show stotting behaviour, but not all antelopes do. The pronghorn, though sometimes called the pronghorn antelope, is not a true antelope. Sa longueur totale atteint en moyenne 141 cm. The difference in size can easily be compared if you take a Thompson gazelle (which weighs in at around 30kg) and an eland which can weigh a whopping 950kg if not more. En hiver, Antilocapra americana est grégaire et se déplace en larges troupeaux. [20][21][22], At the turn of the 20th century, members of the wildlife conservation group Boone and Crockett Club had determined that the extinction of the pronghorn was likely. La présence de feuilles charnues est un critère important décidant du choix de la nourriture, de l'emplacement et de l'attrait des territoires, de la durée des migrations et de la reproduction. [2], Three subspecies are considered endangered in all (A. a. sonoriensis, A. a. peninsularis), or part of their ranges (A. a. mexicana). What are those “small legs” in front of a spider called? In other words, when they notice a predator around them, they start to move slowly and suddenly leap very high and flee as speedy as possible, which is an excellent behavioural adaptation to evade predators. Les principaux prédateurs d’Antilocapra americana sont les coyotes[5] qui s'attaquent aux faons. 30 à 40 % des accouplements peuvent ainsi avoir lieu sur le ou les meilleurs territoires d'une région donnée. The pronghorn is the fastest land mammal in the Western Hemisphere, being built for maximum predator evasion through running. In 1927, Grinnell spearheaded efforts along with the help of T. Gilbert Pearson of Grinnell's National Audubon Society to create the Charles Alexander Sheldon Antelope Refuge in northern Nevada. The picture at the bottom shows a male Impala. Gazelle vs antilope .