Skip to main content

Good news about restoring river ecosystems

It is a commonly held belief that most ecosystems take about a lifetime to recover after damage is introduced by humans. However, researchers at Ohio State University are finding that initial recovery can be dramatic if the right conditions are present. The discovery was made while monitoring how dam removal impacted local species. 
The studies focus on the reintroduction of birds and salmon to the habitat. What they found was that if just birds were introduced, they tended to have low weight and poor numbers of offspring. However, when dams came down and salmon and fish were put together, both species flourished and impacted the surrounding ecosystem positively.
The author of the initial study, Christopher Tonra said that, “It’s exciting to be able to show a real positive outcome in conservation. We don’t always get that…That these rivers can come back within our own generation is a really exciting thing.”
Although for many environmentally minded folks, it is likely not news that species work in tandem to create a healthier environment, what’s important about this study is that it’s showing just how quickly these different species can reinvigorate the natural ecosystem and environmental health in areas that were previously barren. 
That’s partly because the returning salmon populations, which carry nutrients from the open ocean, bring these birds exactly what they need to thrive. “They’re truly fertilizing the river and so that makes its way all the way up through the food chain,” Torna said.
This study could have a huge impact on how to fertilize or reinvigorate previously damaged ecosystems, especially those previously impacted by dam systems. Returning the basics of the wildlife population -such as fish- could mean we see change within years rather than decades.
Amazon river image via Shutterstock.

Read more at ENN Affiliate Care2. 
Post a Comment

Popular posts from this blog

Bottled Water Carries Hidden Cost to Earth

Good for You, Bad for Mother Earth? | $1.79 might seem like a small price to pay for a bottle of water. But it costs the Earth far more than that.

Compared to a liter of tap water, producing a liter of bottled water requires as much as 2,000 times more energy, according to the first analysis of its kind. The study also found that our nation's bottled water habit sucked up the equivalent of 32 to 54 million barrels of oil last year.

"The bottom line is that we should understand better the implications of our choices," said Peter Gleick, president of the Pacific Institute for Studies in Development, Environment, and Security in Oakland, Calif. "It suggests more ways to reduce energy use than maybe we otherwise think of."

Bottled water is a big business that is rapidly getting bigger. From 1976 to 2007, the average amount of bottled water drunk per person per year in the United States jumped from about 6 liters (1.6 gallons) to 116 liters (30.6 gallons).

In 2007, …


Air pollution can cause serious health problems. Rarely, it can even kill people — and we’re not exaggerating. That’s why we care so much about the laws that protect us from air pollution. Read on to learn more about the specific parts of our bodies that are affected by air pollution. Air pollution can be made of tiny particles or gases, and these get into your body when you breathe. Different types of air pollution do different things inside your body. Air pollution can directly irritate the eyes, nose, and throat, before it even gets into the lungs. It can cause runny nose, itchy eyes, and scratchy throat. LUNGS When you breathe in, air moves through your nose or mouth, down your throat into your trachea, and then into your lungs. Pollution can irritate the airways. When that happens, muscles around the bronchi get tight; the lining of the bronchi swell; and the bronchi produce excess mucous. When the airways are constricted, it b…

Hazardous Waste

A hazardous waste is a waste with a chemical composition or other properties that make it capable of causing illness, death, or some other harm to humans and other life forms when mismanaged or released into the environment. PLEASE NOTE This new page is part of our Hazardous Waste Management Program web page update process and is under construction. The links to the left will take you to the main Hazardous Waste page, as well as the general category pages, and the Related Links are those links related to the content on the page.  longer be available.  DEFINING HAZARDOUS WASTE A waste is a hazardous waste if it is a listed waste, characteristic waste, used oil and mixed wastes. Specific procedures determine how waste is identified, classified, listed, and delisted. TYPES OF HAZARDOUS WASTE Hazardous waste is divided into different types (e.g., universal waste) or categories, including RCRA hazardous waste and non-RCRA hazardous waste. Properly categorizing a hazardous waste is necessary f…