News tagged with african savanna
Savannas, forests in a battle of the biomes, researchers find
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 ...
Oct 31, 2011 |
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Bull elephants' social behavior varies with the rainfall
(PhysOrg.com) -- The lone bull elephant is an image as iconic to the African savanna as the lonesome cowboy on horseback is to the American West. Although female elephants form tightly knit groups guided ...
Sep 15, 2011 |
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Termites foretell climate change in Africa's savannas
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 ...
Sep 07, 2010 |
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Airborne ecologists help balance delicate African ecosystem
The African savanna is world famous for its wildlife, especially the iconic large herbivores such as elephants, zebras, and giraffes. But managing these ecosystems and balancing the interests of the large ...
Mar 02, 2009 |
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Search results for african savanna
Humans may have helped the decline of African rainforests 3000 years ago
(PhysOrg.com) -- Large areas of rainforests in Central Africa mysteriously disappeared over three thousand years ago, to be replaced by savannas. The prevailing theory has been that the cause was a change ...
Feb 10, 2012 |
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Australia -- land of the koala, kangaroo... and elephant
Elephants and maybe rhinoceroses could be introduced to Australia to chomp on an invasive African grass that also causes wildfires, according to an idea reported in a scientific journal on Wednesday.
Feb 01, 2012 |
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Mapping underground water sources for drip irrigation could transform African village life
(PhysOrg.com) -- Rural farmers in sub-Saharan Africa live under risky conditions. Many grow low-value cereal crops that depend on a short rainy season, a practice that traps them in poverty and hunger.
Space & Earth / Earth Sciences
Dec 06, 2011 |
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Climate change: South Africa has much to lose
(AP) -- Imagine the savannas of South Africa's flagship Kruger Park so choked with brush, viewing what game is left is nearly impossible. The Cape of Good Hope without penguins. The Karoo desert's seasonal ...
Nov 24, 2011 |
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Forest and savanna can switch quickly
(PhysOrg.com) -- Two recent studies have found that environmental changes can bring previously stable forests and grasslands to tipping points that produce sudden large-scale and sometimes irreversible changes ...
Oct 14, 2011 |
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Zebras versus cattle: Not so black and white
African ranchers often prefer to keep wild grazers like zebra off the grass that fattens their cattle. But a new study by UC Davis and Kenyan researchers shows that grazing by wild animals doesn't always harm ...
Sep 22, 2011 |
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Humans shaped stone axes 1.8 million years ago, study says
A new study suggests that Homo erectus, a precursor to modern humans, was using advanced toolmaking methods in East Africa 1.8 million years ago, at least 300,000 years earlier than previously thought. The st ...
Other Sciences / Archaeology & Fossils
Aug 31, 2011 |
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6 million years of savanna
University of Utah scientists used chemical isotopes in ancient soil to measure prehistoric tree cover – in effect, shade – and found that grassy, tree-dotted savannas prevailed at most East African ...
Aug 03, 2011 |
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Tracking top marine predators in a dynamic ocean
Like the vast African plains, two huge expanses of the North Pacific Ocean are major corridors of life, attracting an array of marine predators in predictable seasonal patterns, according to final results from the Census ...
Jun 29, 2011 |
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Seeing double: Africa's 2 elephant species
Contrary to the belief of many scientists (as well as many members of the public), new research confirms that Africa has two—not one—species of elephant. Scientists from Harvard Medical School, the ...
Dec 21, 2010 |
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List of search results for african savanna
