Scientists detect aquatic ecosystem warning signal

Scientists have found what appears to be the stress signals of a lake ecosystem that is on its way to collapse. Stephen Carpenter of the University of Wisconsin, Madison and colleagues carefully monitored the food web in a Wisconsin lake as they gradually introduced largemouth bass into the ecosystem. The researchers noticed a shift in the algae populations that were directly related to the altered feeding behavior of smaller lake...

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How federal investment in flood management can save money

This post contributed by Terence Houston, ESA Science Policy Analyst Is your neighborhood capable of weathering a flood? Would you still be able to drink tap water after such an event? Are the levees, dams, bridges and storm drains in your town capable of coping with a potential flood? The United States Geological Survey (USGS)–at least for the time being– has the federal resources, investment and capability to answer...

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Noise pollution in the ocean damages cephalopods’ auditory structures

Pollution is not limited to toxic chemicals in the air and water—light pollution in urban environments, for example, has been shown to affect the mating rituals of some birds. Research has also shown that noise pollution in the oceans alters the behavior and communication of marine life such as dolphins and whales that depend on sound for daily activities. And a recent study published in Frontiers in Ecology and the Environment...

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Balancing human well-being with environmental sustainability: an ecologist’s story of Haiti

“Parc National La Visite is one of the few remaining refuges for Haiti’s once-remarkable biodiversity. It is also the only refuge for over 1,000 desperately poor families, the poorest people I have encountered anywhere on this planet. Naked children with bloated stomachs stood next to pine-bark lean-tos and waved shyly to me as I walked through the forest. Their parents eke out the meanest existence from small gardens and, if...

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It takes more than climate change to cause amphibian decline

This post contributed by Monica Kanojia, Administrative Assistant/Governance for ESA. Amphibians have been around for hundreds of millions of years. They have survived numerous extinction events and yet somehow, in the past two decades, their numbers have been in severe decline. The population changes have been linked to many factors, including climate change and disease, habitat destruction and water pollution. Studies indicate that...

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