ScienceDaily: Earth Science News
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- Land-Ocean connections: Scientists discover how tree trunks, leaves and kukui nuts are indirectly feeding bottom fish in the submarine canyons off Moloka’i, Hawaii
- Salty soil can suck water out of atmosphere: Could it happen on Mars?
- New fossil penguin from New Zealand may be the biggest ever
- Indigenous peoples at forefront of climate change offer lessons on plant biodiversity
- Lethal effects of genetically modified Bt toxin confirmed on young ladybird larvae
- Unusual weather: Arctic sea ice decline may be driving snowy winters seen in recent years in N. Hemisphere
- Volcanoes deliver two flavors of water
Posted: 27 Feb 2012 05:49 PM PST Scientists recently discovered that land-based plant material, such as tree trunks, leaves, and kukui nuts; and coastal macroalgae indirectly support the increased abundances of bottom fish in submarine canyons, like those off the north shore of Moloka’i.
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Salty soil can suck water out of atmosphere: Could it happen on Mars? Posted: 27 Feb 2012 05:49 PM PST The frigid McMurdo Dry Valleys in Antarctica are a cold, polar desert, yet the sandy soils there are frequently dotted with moist patches in the spring despite a lack of snowmelt and no possibility of rain. A new study has found that that the salty soils in the region actually suck moisture out of the atmosphere, raising the possibility that such a process could take place on Mars or on other planets.
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New fossil penguin from New Zealand may be the biggest ever Posted: 27 Feb 2012 12:25 PM PST After 35 years, a giant fossil penguin has finally been completely reconstructed, giving researchers new insights into prehistoric penguin diversity.
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Indigenous peoples at forefront of climate change offer lessons on plant biodiversity Posted: 27 Feb 2012 10:28 AM PST Over the last 40 years, an ethnobotanist has worked with the Yanesha of the upper Peruvian Amazon and the Tibetans of the Himalayas, two groups of indigenous peoples carrying on traditional ways of life, even in the face of rapid environmental changes. She explains how their traditional knowledge and practices hold the key to conserving, managing and even creating new biodiversity.
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Lethal effects of genetically modified Bt toxin confirmed on young ladybird larvae Posted: 27 Feb 2012 08:11 AM PST Researchers confirm earlier findings that the Bacillus thuringiensis (Bt) toxin Cry1Ab produced for pesticidal purposes by genetically modified (GM) Bt maize increases mortality in the young ladybird larvae (Adalia bipunctata L., two-spotted ladybird) in laboratory tests. These ladybird larvae are typical ‘non-target’ environmental goods which are not supposed to be harmed by the GM maize.
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Posted: 27 Feb 2012 08:10 AM PST A new study provides further evidence of a relationship between melting ice in the Arctic regions and widespread cold outbreaks in the Northern Hemisphere. The study’s findings could improve seasonal forecasting of snow and temperature anomalies across northern continents.
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Volcanoes deliver two flavors of water Posted: 26 Feb 2012 12:36 PM PST By analyzing submarine volcanic glass from the Manus Basin, scientists found unexpected changes in hydrogen and boron isotopes from the deep mantle. They expected to see the “fingerprint” of seawater. But discovered evidence of seawater distilled from a more ancient plate descent, preserved for as long as one billion years. The data indicate that these ancient “slabs” can return to the upper mantle, and that rates of hydrogen exchange may not conform to experiments.
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