News tagged with forested areas
Factors behind past lemur species extinctions put surviving species in 'ecological retreat'
New research out today on the long-term impact of species extinctions suggests that the disappearance of one species does not necessarily allow remaining competitor species to thrive by filling now-empty niches.
May 23, 2012 |
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Beetle-infested pine trees contribute more to air pollution and haze in forests
The hordes of bark beetles that have bored their way through more than 6 billion trees in the western U.S. and British Columbia since the 1990s do more than damage and kill stately pine, spruce and other trees. ...
May 23, 2012 |
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ASU scientists help uncover complex causes, consequences of changes in the environment
Long-term ecological findings reported today in a special section of the journal BioScience show as temperatures increase in snowy ecosystems, more water is lost to the atmosphere than first predicted. Also, ...
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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Assessing protected area effectiveness
A new study published in Conservation Letters aims to measure whether parks and reserves in the tropics succeed in protecting forests.
Apr 02, 2012 |
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Soon more heat stress in cities?
(PhysOrg.com) -- For the first time, scientists have conducted a global study of the effects persistent heatwaves can have on cities. The results reveal that the frequency of summer heat stress could increase ...
Mar 28, 2012 |
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Tennessee's urban forests valued in the billions
Tennessee's urban forests, currently valued at about $80 billion, also provide almost $650 million in benefits such as carbon storage, pollution removal, and energy reduction according to a new U.S. Forest Service report.
Mar 14, 2012 |
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Study shows earthworms to blame for decline of ovenbirds in northern Midwest forests
A recent decline in ovenbirds (Seiurus aurocapilla), a ground-nesting migratory songbird, in forests in the northern Midwest United States is being linked by scientists to a seemingly unlikely culprit: earthw ...
Feb 29, 2012 |
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Study: Nation's urban forests losing ground
National results indicate that tree cover in urban areas of the United States is declining at a rate of about 4 million trees per year, according to a U.S. Forest Service study published recently in Urban Forestry & Urban Gr ...
Feb 23, 2012 |
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Study: Forested riparian zones important to nitrogen control, stream health
Human activities from agriculture to fossil fuel consumption have resulted in high levels of nitrates in many streams and rivers; now a new study suggests that nurturing riparian zone forests may be a key in maintaining healthy ...
Feb 21, 2012 |
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Survey: Indonesians killed 750 orangutans in year
(AP) -- Villagers living on the Indonesian side of Borneo killed at least 750 endangered orangutans in a year, some to protect crops from being raided and others for their meat, a new survey shows.
Nov 14, 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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60% of deforested Amazon used for cattle: study
More than 60 percent of deforested areas of the Brazilian Amazon forest are used for grazing cattle, while only five percent is used for agriculture, a new government study said.
Sep 04, 2011 |
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Experts urge protected areas to save Canada caribou
Canada needs to create large protected areas of woodlands to help save caribou from the threat of extinction, scientists and environmentalists said Wednesday.
Jul 13, 2011 |
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