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Latest Savanna Stories

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2012-08-07 07:30:47

April Flowers for redOrbit.com - Your Universe Online Scientists have debated how big a role elephants play in toppling trees in South African savannas for years. Now, using some very high tech airborne equipment, they finally have an answer. Tree loss is a natural process, but in some regions it is increasing beyond what could naturally be expected. This extreme tree loss has cascading effects on the habitats of many species. Studying savannas across Kruger National Park, Carnegie...

Development Of Grassroots Approach To Conservation
2012-07-11 11:20:38

A new strategy to manage invasive species and achieve broader conservation goals is being tested in the Grand River Grasslands, an area within the North American tallgrass prairie ecoregion. A University of Illinois researcher along with his colleagues at Iowa State and Oklahoma State Universities enlisted private landowners in a grassroots community-building effort to establish a more diverse landscape for native wildlife. The Grand River Grasslands has three main problems that pose...

What Can Ancient Farmers Teach Us About Saving The Amazon?
2012-04-10 10:52:12

For the better part of the last half-century, the Amazonian forests have been plagued by deforestation from human farming activities, and now, new research suggests that farming without the use of fire, like the indigenous populations did in the Pre-Columbian times, could be the key ingredient in feeding people and managing sustainable land in the Amazon and other regions threatened by deforestation. For hundreds of years before Columbus arrived in Central America, indigenous cultures...

Image 1 - Out Of Africa And Into The American Midwest
2012-01-09 04:48:52

Last of the oak savannas survives at NSF Cedar Creek Long-Term Ecological Research site Grasses bend in the wind, their golden tips tracing arcs across fields that stretch toward the horizon. Sunwashed by a fading evening light, these reedy ballet dancers are central figures in savanna, an ecosystem that covers some 20 percent of Earth's land area. The largest savanna--or grassland with widely spaced trees--is in Africa. But the American Midwest is half a planet away from the...

Image 1 - How Drought-tolerant Grasses Came To Be
2011-11-25 04:28:54

New grass family tree reveals C4 photosynthesis is an evolutionary 1-way street If you eat bread stuffing or grain-fed turkey this Thanksgiving, give thanks to the grasses – a family of plants that includes wheat, oats, corn and rice. Some grasses, such as corn and sugar cane, have evolved a unique way of harvesting energy from the sun that's more efficient in hot, arid conditions. A new grass family tree reveals how this mode of photosynthesis came to be. The results may one day...

Image 1 - Savannas And Forests In A Battle Of The Biomes: Princeton
2011-11-01 08:09:10

Climate change, land use and other human-driven factors could pit savannas and forests against each other by altering the elements found by Princeton University researchers to stabilize the two. Without this harmony, the habitats, or biomes, could increasingly encroach on one other to the detriment of the people and animals that rely on them. The Princeton researchers reported this month in the journal Science that savanna wildfires, combined with climate conditions, maintain the distinct...

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2011-08-04 13:22:04

Scientists report they have found that savannas prevailed most of East African sites where human ancestors and their ape relatives evolved for the past 6 million years. The University of Utah scientists used chemical isotopes in ancient soil to measure prehistoric tree cover in order to make this discovery. "We've been able to quantify how much shade was available in the geological past," geochemist Thure Cerling, senior author of a study of the new method in the Thursday, Aug. 4, 2011...

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2011-05-04 08:35:00

Rotational grazing in native pasturelands benefits wildlife Rotational grazing of cattle in native pasturelands in Brazil's Pantanal and Cerrado regions can benefit both cattle and wildlife, according to a new study by the Wildlife Conservation Society. The technique, which has been adapted for a variety of livestock worldwide, calls for cattle to graze in small areas for shorter periods of time before moving onto other pastures. The result is a greater forage base that produces larger, more...

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2010-09-07 12:11:10

Using sophisticated airborne imaging and structural analysis, scientists at the Carnegie Institution's Department of Global Ecology mapped more than 40,000 termite mounds over 192 square miles in the African savanna. They found that their size and distribution is linked to vegetation and landscape patterns associated with annual rainfall. The results reveal how the savanna terrain has evolved and show how termite mounds can be used to predict ecological shifts from climate change. The...

2010-03-04 11:28:00

COLLEGE STATION "“ A new study by Texas AgriLife Research scientists finds that contrary to widespread perceptions, springs in the Edwards Plateau, which provide much of the stream flows, have not been declining as a result of increased encroachment of woody plants. In fact, spring flows are twice as high as they were prior to 1950. The study found that the landscape is actually recovering from intensive livestock grazing in Texas that dates back to the late 1800s. Large numbers of...


Latest Savanna Reference Libraries

Kazakh Uplands
2013-04-18 23:02:25

The Kazakh Uplands, known also as the Kazakh Hummocks, is a large peneplain formation that stretches throughout the central and eastern regions of Kazakhstan. It’s made up of low mountain oases and elevated plains, and contains large deposits of coal within the north and copper within the south. Rare species, such as the Asiatic Cheetah, may still reside in this region. Several notable cities, including the country’s capital, Astana, are located there. A portion of the Kazakh Uplands...

Mongolian-Manchurian Grassland
2013-04-18 22:58:55

The Mongolian-Manchurian grassland ecoregion, known also as the Mongolian-Manchurian Steppe, located in the temperate grassland Biome, is found in Mongolia, the Chinese Autonomous region of Inner Mongolia and northeastern China. The grassland covers an area of 342,600 square miles. This Palearctic temperate grasslands, savannas, and shrublands ecoregion of the Temperate grasslands, savannas, and shrublands Biome, creates a large crescent around the Gobi Desert, stretching across central...

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2009-07-02 23:05:06

The Cerrado (English: "inaccessible") is an immense tropical savanna ecoregion located in Brazil. It is distinguished by its wide variety of plant and animal biodiversity. According to the World Wildlife Fund, it is the richest savanna in the world, known for its flora and fauna. The climate of the Cerrado is mostly hot to semi-humid in the summer with a dry winter season which lasts from May to October. The annual precipitation for this region is between 31 - 63 inches. The soils are old,...

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Word of the Day
vermicular
  • Like a worm in form or movement; vermiform; tortuous or sinuous; also, writhing or wriggling.
  • Like the track or trace of a worm; appearing as if worm-eaten; vermiculate.
  • Marked with fine, close-set, wavy or tortuous lines of color; vermiculated.
  • A form of rusticated masonry which is so wrought as to appear thickly indented with worm-tracks.
This word ultimately comes from the Latin 'vermis,' worm.
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