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llester — Page 18

Launching Citizen Science Tuesdays

The gathering momentum of *citizen science*. Google searches for the phrase spiked in 2011 (scaled to the average worldwide traffic for the phrase). Credit, Google Trends.   CITIZEN science is not an entirely new concept. The Audubon Society’s popular Christmas Bird Count has run continuously for over a hundred years. When the society founded the program in 1900, the concept…

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In Ecology News: Python vs the Everglades

Are exotic pythons devastating Florida’s Everglades National Park? By Liza Lester, ESA communications officer Sometimes the snake wins. The exotic Burmese python is a new and deadly predator allegedly squeezing the wildlife of Florida’s already environmentally pressured Everglades. Large snakes have been observed swallowing American alligators and 80-pound deer, but more common prey are small mammals like raccoons, rabbits, and…

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State of the Science, 2012

Thoughts and twitterings around the ecosphere on President Obama’s State of the Union address to Congress, Tuesday, January 24th, 2012. In the Wednesday morning quarterbacking that followed this year’s State of the Union, pundits aired the perennial complaint that the President’s speech ran too long, heavily-laden with a Clinton-style laundry list of programs. But citizens like to hear their favorite…

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Solutions for a nitrogen-soaked world

Overabundance of an essential nutrient is not always a good thing. – by Liza Lester, ESA communications officer. A tractor spreads manure. Excess fertilizer seeping out of fields has a host of consequences for ecological systems and human health. Credit, flickr user eutrophication&hypoxia, 2010.   NITROGEN is both an essential nutrient and a pollutant, a byproduct of fossil fuel combustion…

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Beneath the waves film festival–call for submissions!

This post contributed by Liza Lester, ESA communications officer. Four years ago, graduate student Austin Gallagher took a video camera into the tropical waters around Mo’orea, about 17 km northwest of Tahiti in French Polynesia. With his first post to YouTube, he was hooked. Filmmaking supplied an instant gratification quotient to balance the years of patient, slow research required to…

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Spaceship Earth?

This post contributed by Liza Lester, ESA communications officer Astronaut Bruce McCandless II drifts free, 350 kilometers above Earth’s surface and 100 meters from the safe haven of the Space Shuttle Challenger, during one of NASA’s first un-tethered spacewalks (credit, STS-41B, NASA 1984, via the Astronomy Picture of the Day). Invisible bonds of absolute necessity hold the free-flying astronaut to…

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The rising of the sun and the running of the deer

This post contributed by Liza Lester, ESA communications officer In November, Norwegians Arnoldus Schytte Blix, Lars Walløe and Lars Folkow brought us the news that running reindeer cool themselves through open-mouthed panting, as Sara Reardon explains at ScienceNOW. Their heavy winter coats are so effective at insulating the animals from arctic temperatures that they have trouble dumping excess heat through…

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Jesse Nippert in the tall grass at Konza Prairie Biological Station

Tallgrass prairie: the invasion of the woody shrubs

As a Kansas boy, Jesse Nippert spent his youth wanting to escape the state, but found himself drawn inexorably back. Underlying the sea of grass is an interplay of water, fire, competition and consumption as enchanting as any ecosystem—and the balance of forces is shifting.

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landsat 5 satellite artistic rendering

Goodbye, Landsat 5

This post contributed by Liza Lester, ESA communications officer Four hundred miles above the Earth’s surface, a satellite slides into lonely oblivion. After collecting and broadcasting earthly imagery for a remarkable quarter century past its expected 3-year lifespan, Landsat 5 is failing. Over the years, US Geological Survey engineers have contrived quite a few patches and work-arounds for malfunctions on…

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AAAS exhibition captures an undersea world worth conserving

This post contributed by Liza Lester, ESA communications officer “A composer, an artist, a physicist and a philosopher walk into a bar,” said artist Rachel Simmons, introducing her work to a crowd at the opening of Beneath the Surface: Rediscovering a World Worth Conserving at the American Association for the Advancement of Science on November 17th. What emerges is a…

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