白纹牛羚

Bontebok or sassaby or blesbok — © Zveriki.com, derived work based on image based on the original work of Derek Keats from Johannesburg, South Africa, Creative Commons Attribution-Share Alike 2.0 Generic

The blesbok can reach speeds of up to 70 km/h and perform “stotting” jumps.
Blesbok are shy and alert; they rely on speed and endurance to escape predators but tend to return to where they were attacked after a few minutes. They can maintain a speed of 70 km/h (43 mph) when chased.
The blesbok is a subspecies of the bontebok, famous for the bright white “face” (from Afrikaans “bles” — blaze) that is interrupted by a brown band above the eyes.
Nile crocodiles catch blesbok when they come to drink at water bodies where crocodiles live, or when they try to cross rivers with crocodiles in them. This happens especially when blesbok are near water.
The blesbok is one of the most successful examples of antelope recovery thanks to private farms.
The blesbok and the bontebok are subspecies of the same species and can interbreed, producing hybrid offspring known as the bontebles or baster blesbok. The differences between them have developed because they prefer different habitats in the wild.
The blesbok can weigh up to 85 kg. This mass is achieved by both males and females, who are physically very similar.
Both sexes have lyre-shaped horns; males are larger.
The gestation period of the blesbok is about 240 days (8 months), and births peak during November and December. The breeding season for rutting runs from March to May.
Its bright coloration makes it one of the most recognisable ungulates of South Africa.

年龄

The blesbok typically lives from 17 years and 3 months to 28 years and 9 months, although the maximum recorded lifespan is 18 years; the species reaches sexual maturity between 2 and 4 years of age. The young are born with their eyes open and begin walking immediately. The embryo develops inside the mother for approximately eight months. The young feeds on its mother's milk and gradually begins to eat grass, a stage lasting from 1 day to 6 months. The adult phase begins when the animal is capable of reproduction and lives independently, lasting from 2 to 20 years.

表型

The young blesbok has soft fur that is lighter than that of adults. The species' body is covered with brown fur and a white belly, and a white stripe extends from the nose upwards along the face. Adult blesboks possess horns with rings, which are used for protection and combat. Long legs enable the species to run quickly.

生理学

The blesbok has a body length ranging from 85 centimeters to 1 meter; its mass is 84.5 kilograms. During the embryonic stage, the body mass ranges from 1 gram to 7 kilograms. The young have a body mass between 7 and 25 kilograms and a body length of 60 to 85 centimeters. Adult blesboks weigh from 55 to 70 kilograms and measure 85 centimeters to 0.95 meters in body length.

栖息地

Blesboks inhabit altitudes ranging from 1 kilometer to 2 kilometers above sea level and are found across several biomes, including mountainous meadows characterized by cold temperatures, abundant grass and shrubs, tropical savannas with uneven rainfall and numerous trees, and temperate steppes with plentiful grass and few trees. The species occupies terrestrial landscapes such as grasslands and steppes, grassy areas, and meadows; the climate varies considerably, encompassing hot steppes with very hot, dry summers and abundant grass, extremely arid conditions with infrequent rainfall, winters with little precipitation and more rain in summer, hot climates with almost no rainfall, and very hot summers exceeding +25 to +30 degrees Celsius.

庇护所

Blesboks inhabit open grassy plains and do not have permanent or long-term shelters; the species does not use permanent shelters. The blesbok lacks fixed shelters and does not have a permanent refuge. The materials used for shelter consist of grass, which serves for resting.

地理

The blesbok is found within the Afrotropical realm.

食性

The blesbok feeds on grass, clips young shoots on the plains, and its food consists of grass, young shoots, and sprouts. The blesbok's feeding strategy includes searching for and obtaining food, as well as grazing. The species' daily food requirement is from 2 kg to 4 kg.

繁殖

The blesbok is a terrestrial species that reproduces through live birth, with young born alive on land and not hatching from eggs or larvae; gestation lasts eight months, and a female gives birth to one offspring after this period, with the young quickly standing. The species reaches maturity from two to four years of age, and females have litters of one. Reproduction always occurs through fertilization, without generational changes, and the interval between reproduction is from one to two years.

白纹牛羚

年龄

表型

生理学

栖息地

庇护所

地理

食性

繁殖

大小