5,531 results
5,531 results for: Forests
- Animals
Big woodpeckers trash others’ homes
Pileated woodpeckers destroy in an afternoon the nesting cavities that take endangered red-cockaded woodpeckers 6 years to excavate.
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Geneticists define new elephant species
A new study of the genetics of African elephants shows that forest dwellers differ so much from those roaming the savannas that the two may be separate species.
- Chemistry
Feline stimulant fends off mosquitoes
Preliminary results suggest that catnip may be more effective at repelling mosquitoes than the widely used chemical DEET.
- Anthropology
Isotopes reveal sources of ancient timbers
Isotopic analysis of architectural timbers from ancient dwellings in the U.S. Southwest has shown from which distant forests the massive logs came.
- Ecosystems
Another World Hides inside Coral Reefs
The first systematic survey of crevices inside Red Sea reefs reveals abundant filter feeders that may capture significant nutrients for the reef.
- Earth
Lowland tree loss threatens cloud forests
Changes in regional climate brought about by large-scale deforestation in the eastern lowlands of Central America are affecting weather in the mountains downwind, imperiling ecosystems there.
- Ecosystems
Why didn’t the beetle cross the road?
Beetle populations confined to specific forest areas by roads seem to have lost some of their genetic diversity.
- Earth
Killer Crater: Shuttle-borne radar detects remnant of dino-killing impact
Radar images gathered during a flight of the space shuttle Endeavour 3 years ago show the subtle topography related to the impact of an asteroid or comet that may have wiped out the dinosaurs 65 million years ago.
- Earth
Fallen Trees? Scotch pines emit nitrogen oxides into the air
Northern pine forests may exude nitrogen oxides—a contributor to smog and acid rain—in quantities that rival those produced by industry and traffic worldwide.
- Chemistry
Catnip repels pest
Known to repel cockroaches and mosquitoes, catnip oil also works against termites.
- Earth
Feel the Heat: Rain forests may slow their growth in warmer world
During a long-term research project in a Central American rain forest, mature trees grew more slowly in warm years than they did in cooler ones.
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19710
I live in Northern California, where forest-biomass power plants are common. One power plant takes the ashes that result and places them where cows forage. I’m wondering to what level of concentration this process will accumulate the cesium in organic dairy products. Jesse NoellEureka, Calif. The amount of radioactive cesium-137 taken up by trees is […]
