Tag

ecosystems

Amazon forest trees dying younger, reducing carbon uptake

<!– –> From a peak of two billion tonnes of carbon dioxide each year in the 1990s, the net uptake by the forest has halved and is now for the first time being overtaken by fossil fuel emissions in Latin America.   The results of this monumental 30-year survey of the
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The importance of methane seeps in microbial biodiversity of sea floor

A new study “provides evidence that methane seeps are island-like habitats that harbor distinct microbial communities unique from other seafloor ecosystems.” These seeps play an important role in microbial biodiversity of the sea floor. Methane seeps are natural gas leaks in the
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New data show iron rain fell on early Earth

<!– –> Researchers at Sandia National Laboratories’ Z machine have helped untangle a long-standing mystery of astrophysics: why iron is found spattered throughout Earth’s mantle, the roughly 2,000-mile thick region between Earth’s core and its crust. At first blush,
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Cropping Africa's wet savannas would bring high environmental costs

<!– –> With the global population rising, analysts and policymakers have targeted Africa’s vast wet savannas as a place to produce staple foods and bioenergy groups at low environmental costs. But a new report published in the journal Nature Climate Change find
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Zoos Boost Biodiversity Understanding

Zoos and aquariums around the world have a crucial role to play in helping people understand how they can protect animals and their natural habitats, new research from the University of Warwick, the World Association of Zoos and Aquariums (WAZA) and Chester Zoo has found. Dr Eric Jens
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When whales roamed in what is now Africa

<!– –> Uplift associated with the Great Rift Valley of East Africa and the environmental changes it produced have puzzled scientists for decades because the timing and starting elevation have been poorly constrained. Now paleontologists have tapped a fossil from the
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Oregon State University study provides new insight into forest life cycles and carbon storage

A century-long study in the Oregon Cascades may cause scientists to revise the textbook on how forests grow and die, accumulate biomass and store carbon. In a new analysis of forest succession in three Douglas-fir stands in the Willamette National Forest, two Oregon State University s
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Invasive Carp Look for Love in all the Right Places

If you’re looking for love and there are ten bars in town, your chance of meeting someone is 10 per cent.  In a town with only one bar, your odds are 100 per cent. The same thing happens in nature and is called landmarking. Butterflies and other species find mates by gathering at easi
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How the Gecko keeps itself so clean in a dusty habitat

<!– –> In a world first, a research team including James Cook University scientists has discovered how geckos manage to stay clean, even in dusty deserts.  The process, described in Interface, the prestigious journal of the Royal Society, may also turn out to have im
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Why post-fire logging is important

Harvesting fire-killed trees is an effective way to reduce woody fuels for up to four decades following wildfire in dry coniferous forests, a U.S. Forest Service study has found. The retrospective analysis, among the first to measure the long-term effects of post-fire logging on fores
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