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Decades-Past Logging Still Threatens Spotted Owls in National Forests
Logging of the largest trees in the Sierra Nevada’s national forests ended in the early 1990s after agreements were struck to protect species’ habitat.
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Increased Vegetation Boosts Rainfall in the Sahel, Researchers Find
Droughts can grip the vast Sahel region of Africa for decades, dramatically altering the border where forest and savannahs give way to the Sahara Desert. Predicting those droughts is vital, but hard.
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Giant forest fires exterminate spotted owls
As climate changes and wildfires get larger, hotter and more frequent, how should public lands in the American West be managed to protect endangered creatures that, like the spotted owl, rely on fire-prone old-growth forests?Could periodic forest thinning and prescribed burns intended to prevent dangerous “megafires” help conserve owls in the long run? Or are…
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Bird habitat changing quickly as climate change proceeds
The climatic conditions needed by 285 species of land birds in the United States have moved rapidly between 1950 and 2011 as a result of climate change, according to a recent paper published in Global Change Biology.
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Heat waves hit heat islands the hardest
Extreme summers like that of 2012 — which saw record temperatures in cities across the U.S. — may be atypical, but experts say they will return, especially as the planet warms under climate change. And as they do, cities will be especially vulnerable.
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Apes show abilities related to speech
Koko the gorilla is best known for a lifelong study to teach her a silent form of communication, American Sign Language. But some of the simple sounds she has learned may change the perception that humans are the only primates with the capacity for speech.In 2010, Marcus Perlman started research work at The Gorilla Foundation in California,…
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Drilling in the Dark
As production of shale gas soars, the industry’s effects on nature and wildlife remain largely unexplored, according to a study by a group of conservation biologists published in Frontiers in Ecology and the Environment on August 1. The report emphasizes the need to determine the environmental impact of chemical contamination from spills, well-casing failure, and…