Search Results for: desert ecosystem
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146 results
- Animals
Termites, not fairies, cause plant circles in African deserts
Underground insect engineers create water traps in the soil, allowing rings of green grasses in the sand.
- Humans
Ancient North Africans got milk
Pottery study unveils early dairy practices among Saharan cattle herders.
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- Earth
Lizards threatened by warming
Analysis suggests climate change could wipe out 20 percent of species, 39 percent of local populations.
- Plants
Losing life’s variety
2010 is the deadline set for reversing declines in biodiversity, but little has been accomplished.
- Earth
Dirty snow may bring green burst to mountain peaks
Dust blowing in from distant deserts speeds the melting of snow and may shake up ecosystems on the slopes.
- Earth
The big spill: Flood could have filled Mediterranean in less than two years
Discovery of a distinctive channel and new calculations of possible water movement suggest a fast and furious flow formed the sea.
- Climate
Heat waves stunt grassland growth
An abnormally hot year can significantly suppress growth in grasslands, a stifling effect that lingers well into the next year even if temperatures return to normal. It can also hinder how well the grasslands absorb carbon dioxide from the atmosphere.
- Earth
Manifest dirt
Nineteenth-century settlers left a dusty mark on the West. Rocky Mountain lake deposits reveal that America’s westward expansion kicked huge amounts of dirt into the air—probably from livestock grazing. A team led by Jason Neff, a biogeochemist at the University of Colorado in Boulder, examined soil cores from the beds of tiny mountain lakes in […]
- Agriculture
Bee-Loved Plantings
Zipcode-organized guidelines tell gardeners, farmers and others how to design a landscape that will not only entice pollinators but also keep these horticultural helpers happy.
- Earth
Invasive, Indeed
Some people may live lightly on the land, but the demands of the world's population as a whole consume nearly a quarter of Earth's total biological productivity.
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