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African savanna food web ostrich: The role of the flightless bird in the grassland community



Some analyses indicate that the Somali ostrich is now considered a full species; the Tree of Life Project, The Clements Checklist of Birds of the World, BirdLife International, and the IOC World Bird List recognize it as a different species. A few authorities, including the Howard and Moore Complete Checklist of the Birds of the World, do not recognize it as separate.[4][32] Mitochondrial DNA haplotype comparisons suggest that it diverged from the other ostriches not quite 4 mya due to formation of the East African Rift. Hybridization with the subspecies that evolved southwestwards of its range, S. c. massaicus, has apparently been prevented from occurring on a significant scale by ecological separation; the Somali ostrich prefers bushland where it browses middle-height vegetation for food while the Masai ostrich is, like the other subspecies, a grazing bird of the open savanna and miombo habitat.[33]




african savanna food web ostrich



Common ostriches formerly occupied Africa north and south of the Sahara, East Africa, Africa south of the rainforest belt, and much of Asia Minor.[10] Today common ostriches prefer open land and are native to the savannas and Sahel of Africa, both north and south of the equatorial forest zone.[38] In southwest Africa they inhabit the semi-desert or true desert. Farmed common ostriches in Australia have established feral populations.[1][39] The Arabian ostriches in the Near and Middle East were hunted to extinction by the middle of the 20th century. Attempts to reintroduce the common ostrich into Israel have failed.[40] Common ostriches have occasionally been seen inhabiting islands on the Dahlak Archipelago, in the Red Sea near Eritrea.


They mainly feed on seeds, shrubs, grass, fruit, and flowers;[10][13] occasionally they also eat insects such as locusts, small reptiles such as lizards, and occasionally animal remains left by carnivorous predators.[38] Lacking teeth, they swallow pebbles that act as gastroliths to grind food in the gizzard. When eating, they will fill their gullet with food, which is in turn passed down their esophagus in the form of a ball called a bolus. The bolus may be as much as 210 mL (13 cu in). After passing through the neck (there is no crop) the food enters the gizzard and is worked on by the aforementioned pebbles. The gizzard can hold as much as 1,300 g (2 lb 14 oz), of which up to 45% may be sand and pebbles.[13] Common ostriches can go without drinking for several days, using metabolic water and moisture in ingested plants,[51] but they enjoy liquid water and frequently take baths where it is available.[38] They can survive losing up to 25% of their body weight through dehydration.[52]


As a flightless species in the rich biozone of the African savanna, the common ostrich faces a variety of formidable predators throughout its life cycle. Animals that prey on ostriches of all ages may include cheetahs, lions, leopards, African hunting dogs, spotted hyenas, and Nile crocodiles.[10] Predators of nests and young common ostriches include jackals, various birds of prey, warthogs, mongoose, and Egyptian vultures.[53][60] Egyptian vultures have been known to hurl stones at ostrich eggs to crack them open so they can eat their contents.[61]


These birds spend almost the entire day grazing and foraging for food, which is abundant in the African savannas. Although they can go for long periods without liquids, ostriches appear to have a strong affinity for large bodies of water, where they will take bathes often to clean themselves off.


These birds inhabit the savannas, woodlands, and deserts of Africa. It is endemic to a large strip of land between Western Africa and the Horn of Africa, as well as Southern Africa. The savanna sometimes provides a brush for the ostrich to hide in. But whenever the brush is sparse, the bird mostly relies on its speed and cleverness to evade predators.


Ostriches are Omnivores, meaning they eat both plants and other animals.\n"}},"@type":"Question","name":"What Kingdom do Ostriches belong to?","acceptedAnswer":"@type":"Answer","text":"Ostriches belong to the Kingdom Animalia.\n","@type":"Question","name":"What phylum do Ostriches belong to?","acceptedAnswer":"@type":"Answer","text":"Ostriches belong to the phylum Chordata.\n","@type":"Question","name":"What class do Ostriches belong to?","acceptedAnswer":"@type":"Answer","text":"Ostriches belong to the class Aves.\n","@type":"Question","name":"What family do Ostriches belong to?","acceptedAnswer":"@type":"Answer","text":"Ostriches belong to the family Struthionidae.\n","@type":"Question","name":"What order do Ostriches belong to?","acceptedAnswer":"@type":"Answer","text":"Ostriches belong to the order Struthioniformes.\n","@type":"Question","name":"What genus do Ostriches belong to?","acceptedAnswer":"@type":"Answer","text":"Ostriches belong to the genus Struthio.\n","@type":"Question","name":"What type of covering do Ostriches have?","acceptedAnswer":"@type":"Answer","text":"Ostriches are covered in Feathers.\n","@type":"Question","name":"In what type of habitat do Ostriches live?","acceptedAnswer":"@type":"Answer","text":"Ostriches live in desert and savanna areas.\n","@type":"Question","name":"What are some distinguishing features of Ostriches?","acceptedAnswer":"@type":"Answer","text":"Ostriches have small wings, long necks, and long legs.\n","@type":"Question","name":"What do ostriches eat?","acceptedAnswer":"@type":"Answer","text":"\nOstriches consume seeds, grass, fruits, flowers, insects, and even reptiles.\n\n","@type":"Question","name":"Does the ostrich migrate?","acceptedAnswer":"@type":"Answer","text":"\nNo, the ostrich stays largely within the same area all year around.\n\n","@type":"Question","name":"How many eggs does the ostrich lay?","acceptedAnswer":"@type":"Answer","text":"\nA female ostrich can lay seven to 10 eggs in a single brood. Even though the egg weighs more than 3 pounds each, one of the more amazing facts is that her body is large enough to potentially carry more eggs.\n\n","@type":"Question","name":"How fast does the ostrich fly?","acceptedAnswer":"@type":"Answer","text":"\nThe ostrich is completely incapable of flight.\n\n","@type":"Question","name":"What is the ostrich\u2019s wingspan?","acceptedAnswer":"@type":"Answer","text":"\nOstriches have a wingspan of around 6.6 feet. Given its overall size, the wingspan to body length is not particularly exceptional for a bird.\n\n","@type":"Question","name":"When do baby ostriches leave the nest?","acceptedAnswer":"@type":"Answer","text":"\nThe baby ostrich leaves the nest only a few days after hatching. They are completely ready to follow their parents around and begin foraging.\n\n","@type":"Question","name":"What is the scientific name for the Ostrich?","acceptedAnswer":"@type":"Answer","text":"The scientific name for the Ostrich is Struthio Camelus.\n","@type":"Question","name":"What is the lifespan of an Ostrich?","acceptedAnswer":"@type":"Answer","text":"Ostriches can live for 50 to 70 years.\n","@type":"Question","name":"How fast is an Ostrich?","acceptedAnswer":"@type":"Answer","text":"An Ostrich can travel at speeds of up to 42 miles per hour.\n","@type":"Question","name":"How do Ostriches have babies?","acceptedAnswer":"@type":"Answer","text":"Ostriches lay eggs.\n","@type":"Question","name":"How do Ostriches compare to Rheas?","acceptedAnswer":"@type":"Answer","text":"When separating ostriches vs rheas, you need to consider a few key differences. First, ostriches live in Africa while rheas are found in South America. Second, ostriches are significantly larger than rheas, with a height that can reach twice as tall. Third, rheas have three toes while ostriches have two.\n","@type":"Question","name":"What are the key differences between an ostrich and a cassowary?","acceptedAnswer":"@type":"Answer","text":"The key differences between a cassowary and an ostrich are the size, appearance, range, and social structure.\n","@type":"Question","name":"What are the differences between an ostrich skeleton and a T-Rex skeleton?","acceptedAnswer":"@type":"Answer","text":"Ostriches have more hollow bones compared to the T-Rex, though the T-Rex has some hollow bones. In addition, the T-Rex has strikingly similar legs and walking strides compared to the ostrich.\n"]} Thank you for reading! Have some feedback for us? Contact the AZ Animals editorial team.


Many types of grazing mammals are found in the savanna. Grazing animals are animals that eat grass. Grazing animals live there because large amounts of grass covers the land. Zebras, wildebeests, elephants, giraffes, ostriches, gazelles and buffalo are all grazing animals. It is common to see groups, or herds, of grazing animals in the African savanna. Hoofed animals, known as ungulates, are common. Ungulates include rhinoceroses, giraffes, camels, hippopotamuses and elephants. The biome of sub-Saharan Africa has the most ungulates on Earth.


Savannas are often used for farming, which can be harmful to wildlife. This is a big problem for animals if large farms take over grazing or hunting lands. When farms are cleared to make room for crops, many trees are cut down. This destroys the habitats of animals and other plants that depend on these trees to survive. Domesticated animals, or livestock, sometimes graze on savannas causing a shortage of food for wildlife. This overgrazing can have negative effects on the native plants as well.


Wild ostriches live in the dry, hot savannas and woodlands of Africa. They once roamed all over Asia, Africa and the Arabian Peninsula, but because they have been hunted so extensively, wild ostriches' range has been reduced to sub-Saharan Africa, according to the University of Michigan Museum of Zoology (opens in new tab). However, ostriches can be found in captivity all over the world. 2ff7e9595c


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