Category Archive: Invasive Species

Oct 17

The Wetlands’ Devil in Disguise

purple loosestrife in wetland area

A beautiful purple plant has some very ugly effects on many wetland ecosystems—listen up: What do you call a purple alien that’s really tough to get rid of? Purple loosestrife…and it’s no joke. First spotted in the Great Lakes region near Lake Ontario in 1869, this pretty but invasive purple flowering plant takes over wetland …

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Permanent link to this article: http://www.currentcast.org/citizen-science-2/the-wetlands-devil-in-disguise/

Oct 15

Can the Chicago River Change Its Ways (Again)?

Chicago once reversed—and now may re-reverse—its river. Why? Listen up: More than a hundred years ago, pipes spewed sewage and factory waste directly into the Chicago River, which flowed into Lake Michigan, the city’s source of drinking water. Not surprisingly, waterborne diseases ran rampant. Chicago’s solution was as mind-boggling as its problem—to reverse the flow …

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Permanent link to this article: http://www.currentcast.org/water-and-the-economy/can-the-chicago-river-change-its-ways-again/

Oct 03

Clean, Drain, and Dry

Boaters can help turn away unwanted hitchhikers. Here’s how: Invasive plants and animals can wreak havoc on waterways, from making a shoreline less able to withstand flooding to harming fish. Boaters can help stop the spread of aquatic invasive species by cleaning plants and mud off their boats; then they should drain and dry out before …

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Permanent link to this article: http://www.currentcast.org/water-and-recreation/clean-drain-and-dry/

Sep 27

Holding the Invaders at Bay

On the lookout for invasive plants: When a new plant moves into a lake or stream, take note – it could be cause for concern. Sandra Keppner with the U.S. Fish and Wildlife Service says that rapidly spreading invasive plants like water chestnut and hydrilla are causing big problems for New York waters. “We see …

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Permanent link to this article: http://www.currentcast.org/biodiversity/holding-the-invaders-at-bay/

Sep 26

Invasive Grass Threatens Georgian Bay

Pulling Phragmites in Georgian Bay . . . Learn more: Wetlands in Ontario’s Georgian Bay are threatened by an invasive grass called phragmites that outcompetes many native species. “It actually can grow to about 18 feet tall and displace native plants from their aquatic habitat,” explains David Sweetnam of the nonprofit Georgian Bay Forever. He …

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Permanent link to this article: http://www.currentcast.org/restoration-and-conservation-initiatives/invasive-grass-threatens-georgian-bay/

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