5,523 results
5,523 results for: Forests
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From the June 11, 1932, issue
BUTTERFLIES, “WINGED JEWELS,” ARE GEMS AT START OF LIFE Butterflies have been called “winged jewels” so often that the conceit can hardly be considered poetic any longer. Yet the appropriateness of the old metaphor receives new confirmation when we look at the egg of a butterfly, which represents the humblest beginning of its career of […]
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18951
That is a neat little recycle program described in “New test traces underground forest carbon.” As fast as the CO2 comes out of the ground, the tree grabs the carbon by photosynthesis and leaves two oxygen atoms in the atmosphere. A portion of the carbon is stored until the wood rots or burns. Some carbon […]
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18957
The article says, “Logging and burning for agriculture currently claim about 1 percent of the Amazon rain forest per year.” This simply is not true. We have been hearing this and even more alarming “statistics” about Amazon deforestation for more than 20 years. Yet NASA Landsat images show that little more than 10 percent of […]
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19312
I feel compelled to respond to this article. No one can enter and leave the wilderness without a trace, whether on foot, bike, horse, all-terrain vehicle (ATV), skis, snowmobile, or snowshoes. However, rock climbing is among the least invasive outdoor activities. Apparently, someone with a personal vendetta against rock climbers discovered that a snail population […]
- Life
Year in Review: Bioengineers make headway on human body parts
New techniques produce mimics of brain, liver, heart, kidney, retina.
- Humans
Letters from the January 7, 2006, issue of Science News
Death in the Americas I was wondering if researchers have given any thought to the idea that in the same way that disease devastated human populations after the European discovery of the Americas, perhaps disease was a contributing factor in the demise of much of the fauna of the Western Hemisphere (“Caribbean Extinctions: Climate change […]
- Archaeology
Easter Island’s farmers cultivated social resilience, not collapse
A Polynesian society often presumed to have self-destructed shows signs of having carried on instead.
- Microbes
The vast virome
When it comes to the microbiome, bacteria get all the press. But virologists are starting to realize that their subjects also do a lot more than make people sick.
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19779
Do cows and other domestic-herd animals really emit more methane than bison and other wild-herd animals emitted before people came along? Do grass, alfalfa, and other pasture plants remove less carbon dioxide than do forests? There were open grasslands before pastures replaced some forests. I hope the people who are researching these things take such […]
- Ecosystems
Lab ecosystems show signs of evolving
An ambitious test of group selection considers whether natural selection can act on whole ecosystems as evolutionary units.
- Plants
Team corners culprit in sudden oak death
After 5 years of mystery, California pathologists announced they may have identified the cause of a new tree disease called sudden oak death.
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Banning deer boosts migratory birds
In a 9-year test, excluding deer raised the population numbers among bird species, such as hooded warblers, that have a high conservation priority.
