News tagged with forested ecosystem
Seagrasses can store as much carbon as forests
(Phys.org) -- Seagrasses are a vital part of the solution to climate change and, per unit area, seagrass meadows can store up to twice as much carbon as the world's temperate and tropical forests.
May 22, 2012 |
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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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Handful of heavyweight trees per acre are forest champs
Big trees three or more feet in diameter accounted for nearly half the biomass measured at a Yosemite National Park site, yet represented only one percent of the trees growing there.
May 02, 2012 |
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Bark beetle management and ecology in southern pine forests
Periodic outbreaks of bark beetles can cause annual losses of millions of dollars and pose serious challenges for forest managers, and the suppression of outbreaks is particularly difficult and expensive.
Apr 23, 2012 |
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New purple crab species found in Philippines
Four new species of freshwater crab, bright purple in colour, have been discovered in the biologically diverse but ecologically-threatened Philippines, the man who found them said Saturday.
Apr 22, 2012 |
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New report assesses impact of climate change on forest diseases
Climate change is projected to have far-reaching environmental impacts both domestically and abroad. A recently published report by the USDA Forest Service's Pacific Southwest Research Station (PSW) examines the impact of ...
Apr 10, 2012 |
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Loss of predators in Northern Hemisphere affecting ecosystem health
A survey done on the loss in the Northern Hemisphere of large predators, particularly wolves, concludes that current populations of moose, deer, and other large herbivores far exceed their historic levels ...
Apr 09, 2012 |
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Long-term research reveals causes and consequences of environmental change
As global temperatures rise, the most threatened ecosystems are those that depend on a season of snow and ice, scientists from the nation's Long Term Ecological Research (LTER) Network say."The vulnerability o ...
Apr 06, 2012 |
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Reforestation efforts reshape Hawaii's soil hydrology
Starting with the arrival of Polynesian settlers in the fourth century, and peaking in the mid-1800s, the destructive forces of wildfires and pests and the grazing of feral pigs, goats, and cattle reduced the native forests ...
Mar 31, 2012 |
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Trace element plays major role in tropical forest nitrogen cycle
A new paper by researchers from the University of Georgia and Princeton University sheds light on the critical part played by a little-studied element, molybdenum, in the nutrient cycles of tropical forests. Understanding ...
Mar 22, 2012 |
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In forests, past disturbances obscure warming impacts
Past disturbances, such as logging, can obscure the effects of climate change on forest ecosystems. So reports a study just published in the Proceedings of the National Academy of Sciences. The paper, explor ...
Mar 05, 2012 |
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Tiny shrimp leave giant carbon footprint: scientist
Measured by environmental impact, a humble shrimp cocktail could be the most costly part of a typical restaurant meal, scientists said Friday.
Feb 18, 2012 |
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New website shares information about deadly tree pathogens
Sudden oak death, Port-Orford-cedar root disease and other deadly tree diseases caused by Phytophthora species (pronounced fy-TOF-ther-uhs) are threatening forest ecosystems worldwide. These microorganisms, which are relate ...
Feb 02, 2012 |
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An ecosystem being transformed: Yellowstone 15 years after the return of wolves
On the 15th anniversary of the return of wolves to Yellowstone National Park, a quiet but profound rebirth of life and ecosystem health is emerging, scientists conclude in a new report.
Dec 21, 2011 |
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Biomass tax credits stabilized wood prices, fueled economic benefits
The first full year of Oregon's tax credits given to biomass collectors and producers — as administered by the Oregon Department of Energy — helped stabilize prices for wood-based fuel, supported ...
Other Sciences / Economics & Business
Dec 19, 2011 |
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