August 27th, 2013 by Irene Miles
Visitors to Jens Jensen Park in the Chicago suburb of Highland Park will notice a change to the landscape this year. The Fountain of the Blue Heron, nestled between the park’s grassy land and thick forestry, has been transformed into a water garden. But this is no ordinary water garden. Like much of the park surrounding it, this garden was built with plants that are native to northeastern Illinois.
The fountain was redesigned by the Park District of Highland Park and the Chicago Botanic Garden, with funding assistance from Illinois-Indiana Sea Grant, to give park visitors a closer look at how native aquatic plants like lizard’s tail, water willow, and sweet flag can be used to create beautiful, healthy water gardens.
“Native plantings have gotten a bit of a bad rap,” said Bob Kirschner, director of restoration ecology at the Chicago Botanic Garden. “They are often seen as weedy and unorganized. We wanted to demonstrate how you can use native aquatic plants to achieve the ornamental look many people desire.”
Using native aquatic plants like those in Jens Jensen Park is about more than just creating striking water gardens, though. Growing native species also helps curb the spread of invasive aquatic plants that outcompete native species and upset food webs. Invasive species common in water gardens are already threatening the health of Illinois waterways. For example, the fast-growing Brazilian Elodea—typically sold in aquarium stores and water nurseries under the name “Anacharis”—has been found in several lakes and ponds in Illinois, including in a community not far from Highland Park. Like many invasive plants, this waterweed grows in dense mats that block out sunlight needed by other species and hinders water recreation. And it is nearly impossible to remove once it has been introduced.
“Once an invasive species has become established, the negative impacts on the environment cannot be fully reversed,” said Greg Hitzroth, an IISG aquatic invasive species outreach specialist. “By growing non-invasive species, gardeners can help prevent a new population of harmful species from taking root in local environments.”
The over one dozen species of aquatic plants at home in Jens Jensen Park will also provide food for birds, insects, and other wildlife. Native plants are especially important for pollinators like bees and butterflies that keep northeastern Illinois’ natural areas flowering.
Visit IISG’s Aquatic Plants in Trade website to learn more about aquatic invasive plants and read this water gardening brochure to learn how you can help curb the spread.
July 12th, 2013 by Irene Miles
Greg Hitzroth, IISG’s organisms in trade outreach specialist, recently attended both the Northern Midwest Zen Nippon Airinkai Koi Club Show and the Indiana Koi and Water Garden Club Show to speak directly with water gardeners about making the right choices to prevent selecting and spreading invasive species.
The overall message he shared with the attendees was that even common plants associated with water gardens can quickly become “aquatic invaders” under the right conditions. Aquatic invaders are plants and animals that cause ecologic and economic harm once established in public waterways, and removing them can be very expensive and often impossible. One way that aquatic invaders are introduced or spread into public waters is through the intentional or unintentional release of species from water gardens and koi ponds.
Prevention is the best and most cost-effective way to keep aquatic invaders from spreading, and the gardeners and landscapers heard about a number of methods at the shows.
The first way to keep these species from spreading is to avoid buying and using them at all. Instead, Greg recommended purchasing native species and avoiding known invasives like those on identified by Reuben Keller of Loyola University Chicago and Christa Gants and David Lodge of University or Notre Dame in their article (PDF). The Chicago Botanic Garden’s website has a list of invasive species and alternatives that are not invasive or environmentally threatening to help guide gardeners’ purchase.
Additionally, simple steps like finding appropriate alternatives to releasing these species (including trading, returning them to retailers, or properly disposing of them) can have a profound effect in keeping aquatic invaders from establishing in other areas.
Greg will be presenting this information at other upcoming shows and events, including this weekend’s Midwest Koi and Pond Show, and looks forward to providing information about preventing aquatic invaders to gardeners and hobbyists throughout the season. Illinois-Indiana Sea Grant is creating a number of educational materials about preventing these species from spreading, and more information about those will be posted soon.
June 25th, 2013 by Irene Miles
Aquatic invaders come in a number of shapes, sizes, and varieties, and aren’t limited to mussels or fish. In addition to our “Be A Hero – Transport Zero” campaign asking boaters and water users to be on the lookout for invasive species, IISG has helped fund “Hydrilla Hunt!,” a program to keep this invasive plant from overtaking Illinois’ waters.
Hydrilla verticillata, commonly known as “hydrilla,” is an aquatic invasive “superweed” – a non-native plant that can grow quickly in waterways and cause serious environmental and economic damages. But before this species takes over, Illinois partners are asking water lovers for their help in preventing hydrilla’s spread.
“Recognized as one of the world’s worst weeds, hydrilla can grow an inch per day and form dense mats of vegetation at the water surface. Within the past few years, hydrilla has been discovered in Wisconsin and Indiana and it is expected to arrive in Illinois very soon. Our desirable native aquatic plants, sport fishing, native wildlife, waterfront property values, and recreational uses might all be seriously impacted.
‘Early detection of hydrilla could save Illinois millions of dollars in control costs,’ noted Cathy McGlynn, coordinator for the Northeast Illinois Invasive Plant Partnership (NIIPP). ‘Experience from other states shows that once a waterway becomes infested with hydrilla, it’s nearly impossible to control. Our hope in Illinois is to identify the plant at a very early stage when populations are still small enough to eradicate and manage,’ added McGlynn.”
Because this species can spread so quickly, the “Hydrilla Hunt!” program is asking boaters, fishermen, swimmers, sailors, and more to help locate it and notify them via e-mail with photos if possible.
May 10th, 2013 by Irene Miles
Illinois-Indiana Sea Grant’s Aquatic Invasive Species (AIS) outreach team was recognized along with many other collaborators in a NOAA Spotlight article for their work on the Great Lakes Risk Assessment Tools. This tool estimates the potential invasiveness of species being sold for use in trade and hobbies such as aquaculture, live bait, and water gardens etc. It provides insights for resources managers that may guide future policies with the goal of preventing the spread of invasive species. This is also a tool that hobbyists and people working in the trades can use proactively use to help choose less threatening species. IISG “will be talking with retailers, hobbyists, and water gardeners – going to shows and posting information in stores – about how they can use the risks assessments as a guide to get ahead of regulations and make responsible decisions now,” said Pat Charlebois, IISG AIS Coordinator.
April 18th, 2013 by Irene Miles
Each year the Illinois Lakes Management Association recognizes one outstanding professional or volunteer for their significant contributions to preserving and protecting the quality of Illinois lakes.
The Lake Guardian award, given annually, acknowledges each winner’s career-long efforts to ensure healthy lakes throughout the state of Illinois, and this year Illinois-Indiana Sea Grant’s Pat Charlebois was selected from among several nominees.
Pat’s work on outreach efforts to prevent the spread of aquatic invasive species is especially important to protecting Illinois’ waterways. The development of tools to inform boaters, anglers, and the general public about the dangers of these species, as well as best management practices and regulations, continue to be instrumental in protecting delicate ecosystems, and Pat has lead the way in these areas.
To learn more about our work on aquatic invasive species, visit our AIS page.
January 24th, 2013 by Irene Miles
Phragmites Australis, also know as the Common Reed, is a wetland plant that is not native to the Great Lakes. The invasive plant grows and spreads rapidly in the wetlands around the Lakes, and as a result can crowd out native plants that are beneficial to the local ecosystems.
Researchers at Michigan Tech are working on mapping the spread of the plant, though, in an effort to better understand its spread and plan for managing and reducing it.
From Upper Peninsula’s Second Wave:
“The common reed, or phragmites australis, isn’t native to the Great Lakes, but grows quickly in our climate conditions into large, tall stands that can threaten wetlands habitat.
The plant hasn’t been studied very much, or mapped, which was the goal of the Tech scientists, in cooperation with the U.S. Geological Survey, Boston College and the U.S. Fish and Wildlife Service. Together, teams first mapped the U.S. coastlines of all five Great Lakes using satellites.
Then, they did field studies along the coastlines to confirm the satellite findings, and plot the locations of large stands of the reed, in a first-of-its-kind map.”
Read more about the map at the link above and in the article at Science Daily.
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