BI SC 002 Lecture Notes - Lecture 58: Polar Desert, Atacama Desert, Prairie
Document Summary
Found on every continent: except for antarctica, about half of africa and large regions of china. As well as middle area of america: huge herds of bison once roamed the open prairie, north american prairie: A lot different from what is usually grown on suburban lawns: on the open prairie: 5 or 6 feet tall: today, sometimes reach 9 feet tall. Much of central part of united states under cultivation. Currently sued for grazing by ranchers: for animals. Scattered: area referred to as a: Savannah: much of african grasslands are savannah. Deserts: areas getting less than 10 inches of rainfall. Yearly: without water o support important vegetation: Sandy soils: plants well adapted to low water can: Other examples: reptiles, small mammals, birds. Live in deserts: make up about 1/3 of landmass of earth, not always hot. Huge part of 1/3 landmass of earth: antarctica essentially entirely: Largest hot desert in the world: the atacama desert:
