Some grasses might be under a foot tall, while others can grow as high as seven feet. Their roots can extend three to six feet deep into the soil. The combination of underground biomass with moderate rainfall—heavy rain can wash away nutrients— tends to make grassland soils very fertile and appealing for agricultural use.
Much of the North American prairielands have been converted into land for crops, posing threats to species that depend on those habitats, as well as drinking water sources for people who live nearby. Grasslands support a variety of species. Vegetation on the African savannas, for example, feeds animals including zebras, wildebeest, gazelles, and giraffes.
On temperate grasslands, you might find prairie dogs, badgers, coyotes, swift foxes, and a variety of birds. There can be up to 25 species of large plant-eaters in a given grassland habitat, comprising a sort of buffet where different grasses appeal to different species. Some grass species in these habitats include red oat grass and Rhodes grass in tropical savannas, and purple needlegrass and galleta in temperate areas.
When rainy season arrives, many grasslands become coated with wild flowers such as yarrow, hyssop, and milkweed. The plants on grasslands have adapted to the drought, fires, and grazing common to that habitat. Fires, both natural and human-caused, are important factors shaping grasslands. Midwest, for example, Native Americans set fires to help maintain grasslands for game species such as bison. Fire can also help prevent fire-intolerant trees and shrubs from taking over while increasing the diversity of wildflowers that support pollinators.
All rights reserved. Types of grasslands There are two main kinds of grasslands: tropical and temperate. Grassland plants and animals Grasslands support a variety of species. Share Tweet Email. Why it's so hard to treat pain in infants. This wild African cat has adapted to life in a big city. Animals Wild Cities This wild African cat has adapted to life in a big city Caracals have learned to hunt around the urban edges of Cape Town, though the predator faces many threats, such as getting hit by cars.
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History Magazine These 3,year-old giants watched over the cemeteries of Sardinia. Central Eurasian grasslands are referred to as steppes, while African grasslands are savannas.
What they all have in common are grasses, their naturally dominant vegetation. Grasslands are found where there is not enough regular rainfall to support the growth of a forest, but not so little that a desert forms. In fact, grasslands often lie between forests and deserts. They are generally open and fairly flat, and they exist on every continent except Antarctica, which makes them vulnerable to pressure from human populations.
Threats to natural grasslands, as well as the wildlife that live on them, include farming, overgrazing, invasive species, illegal hunting, and climate change. At the same time, grasslands could help mitigate climate change: One study found California's grasslands and rangelands could store more carbon than forests because they are less susceptible to wildfires and drought.
Still, only a small percentage—less than 10 percent—of the world's grassland is protected. Types of Grasslands There are two main kinds of grasslands: tropical and temperate. Examples of temperate grasslands include Eurasian steppes, North American prairies, and Argentine pampas.
Tropical grasslands include the hot savannas of sub-Saharan Africa and northern Australia. Rainfall can vary across grasslands from season to season and year to year, ranging from Temperatures can go below freezing in temperate grasslands to above The height of vegetation on grasslands varies with the amount of rainfall.
Some grasses might be under 0. Their roots can extend 0. The combination of underground biomass with moderate rainfall—heavy rain can wash away nutrients—tends to make grassland soils very fertile and appealing for agricultural use. Much of the North American prairielands have been converted into land for crops, posing threats to species that depend on those habitats, as well as drinking water sources for people who live nearby.
Grassland Plants and Animals Grasslands support a variety of species. Vegetation on the African savannas, for example, feeds animals including zebras, wildebeest, gazelles, and giraffes.
On temperate grasslands, you might find prairie dogs, badgers, coyotes, swift foxes, and a variety of birds. There can be up to 25 species of large plant-eaters in a given grassland habitat, comprising a sort of buffet where different grasses appeal to different species. Some grass species in these habitats include red oat grass Themeda triandra and Rhodes grass Chloris gayana in tropical savannas, and purple needlegrass Nassella pulchra and galleta in temperate areas.
When rainy season arrives, many grasslands become coated with wildflowers such as yarrow Achiella millefolium , hyssop, and milkweed. The plants on grasslands have adapted to the drought, fires, and grazing common to that habitat. Fires, both natural and human-caused, are important factors shaping grasslands. In the U. Midwest, for example, Native Americans set fires to help maintain grasslands for game species, such as bison.
Fire can also help prevent fire-intolerant trees and shrubs from taking over while increasing the diversity of wildflowers that support pollinators. The audio, illustrations, photos, and videos are credited beneath the media asset, except for promotional images, which generally link to another page that contains the media credit. The Rights Holder for media is the person or group credited.
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