Earthworms rob forests of key nutrients; pave way for other invaders

By Chris Symons

Compost box heroes, or the root of all ecological evil? Worms in Great Lakes forests are not what they seem. Trilliums are smaller, algal blooms are more common and hummingbird populations are decreasing. All of these are made worse by non-native earthworms in Great Lakes soil. A recent study in Ecosystems journal identified four key minerals that earthworms remove from soil and that native plants need to grow.

Food Environment Atlas

MONDAY MASHUP: Food Environment Atlas

People in Indiana and Ohio spend more than $500 a year on fast food – hundreds more than the Great Lakes state average. Uncover such food-related information with this U.S. Department of Agriculture mashup of food environments.

PA Superfund site map

MONDAY MASHUP: Great Lakes Superfund sites

Hazardous waste sites in Great Lakes states make up a third of the nation’s total, according to an investigation by the Center for Public Integrity. Each state page also has information on proposed, existing and remediated Superfund sites.

MONDAY MASHUP: National Low-Impact Development Atlas

By Rachael Gleason

Officials at the University of Minnesota Duluth have found a solution to campus soil erosion caused by students cutting sidewalk corners. Permeable pavement allows for natural water filtration but prevents erosion at common footpath shortcuts. Builders are using this method in several Minneapolis locations, according to links on a mashup detailing low-impact developments. The mashup was developed for the National Nonpoint Education for Municipal Officials Network, a nexus of sustainable land use educators. It highlights building projects by the network’s 32 member programs. Minnesota is the only state in the Great Lakes with projects mapped out so far.