News tagged with savanna trees
Out of Africa and Into the American Midwest
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 ...
Jan 09, 2012 |
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Gum arabic potential cure for Sudanese ills
Since he was 14, Al-Amin has tapped gum arabic, the resin of an acacia tree that thrives in Sudan's conflict states -- "manna" from heaven for some, a key ingredient in Coca-Cola for others.
Nov 25, 2011 |
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Trees facilitate wildfires as a way to protect their habitat
Fire is often thought of something that trees should be protected from, but a new study suggests that some trees may themselves contribute to the likelihood of wildfires in order to promote their own abundance ...
Oct 28, 2009 |
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Search results for savanna trees
Southern pine beetle impacts on forest ecosystems
Research by USDA Forest Service Southern Research Station (SRS) scientists shows that the impacts of recent outbreaks of southern pine beetle further degraded shortleaf pine-hardwood forest ecosystems in the southern Appalachian ...
May 17, 2012 |
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Birds' diverse traits survive Amazon fires
Research in the Amazon has shown that wildfires are less of a threat to the functional diversity of rainforest birds than you might expect.
Mar 12, 2012 |
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Watching the planet breathe
Scientists have come up with an entirely new way to monitor the health of Earth’s plants from space. In work published in Geophysical Research Letters, researchers working at NASA’s Jet Propulsion Labora ...
Space & Earth / Earth Sciences
Mar 02, 2012 |
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Climate change threatens tropical birds: study
Climate change spells trouble for many tropical birds – especially those living in mountains, coastal forests and relatively small areas – and the damage will be compounded by other threats like ...
Feb 16, 2012 |
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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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How drought-tolerant grasses came to be
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 ...
Nov 23, 2011 |
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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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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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Ecosystem management must consider human impact too
For a long time, ecologists have believed—and others accepted—that when it comes to whether a land mass is covered with forests or grasslands, climate controls the show. They thought that the amount ...
Oct 14, 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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List of search results for savanna trees
