Ecosystems
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- Health & Medicine
Perchlorate: A Saga Continues
Perchlorate is not yet a household word in many parts of the country. But it may becomes one if Sen. Barbara Boxer has her way. Perchlorate – an ingredient in solid rocket fuel, fireworks, flares and explosives – taints drinking-water supplies around the nation, not to mention plenty of foods. In animal tests, the pollutant […]
- Ecosystems
Bring in the replacements
Missing links in ecosystems disrupted by extinctions could be restored by introducing species that perform the same function, new field experiments suggest.
- Ecosystems
Building Homes Where the Buffalo Roamed
A new study finds that being environmentally conscious is no guarantee you’ll put your home where you mouth is.
- Ecosystems
Eight-legged bags of poison
Birds eating arachnids get high dose of toxic metal as mercury climbs up the food chain.
- Ecosystems
Beetle attack overturns forest carbon regime
Ravaged Canadian region switches from carbon sink to net carbon source.
- Ecosystems
Refugee Policy Needs a Shot in the Arm
Sometimes spending a little money on vaccinations up front can save a bundle down the line.
- Ecosystems
Predators return
Warming waters could push new predators into Antarctica's delicate ecosystems.
- Ecosystems
Spread of nonnative fish mirrors human commerce
Invasions of foreign freshwater fish are more common in areas with relatively high economic activity, suggesting that humans are a part of the problem.
- Ecosystems
Big Foot: Eco-footprints of rich dwarf poor nations’ debt
The first global accounting finds rich and middle-income nations stomping heavy footprints on poorer ones.
- Ecosystems
Prairie Revival
Prairie restoration is attracting interest, but because so little long-term monitoring and comparative studies have been done, researchers are still wondering whether it's really possible to re-create a prairie.
- Ecosystems
Tortoise Genes and Island Beings
Geneticists and conservation biologists are joining forces to untangle the evolutionary history of giant Galápagos tortoises and to safeguard the animals' future.
