In 2009, the CSA Ecology Committee sponsored two programs- an ecological education program for children and an environmental baseline assessment of the CSA. Carrying forward with this momentum, they proposed to continue Ecology Fun classes in 2010 and, additionally, build a robust plan for tackling the threat of invasive species in the CSA forest.
In order to accomplish these goals, the Ecology Committee had in mind to hire one intern, but through good fortune and an extra push in fundraising was able to have two interns on board, Katie Hartin and Lauren Hoerr. These two women worked closely together to facilitate Ecology Fun classes and to take on several large projects regarding the health of the CSA forest.
Ecology Fun had another successful year with high turnout and very positive feedback from all involved. The program was expanded by starting two weeks earlier in the season, giving more students an opportunity to participate. Each class focused on an ecological lesson or concept that can be applied to the environment at the CSA and on a broader scale as well. For more detailed information and photographs, please see the interns’ report.
The two interns also worked to educate adults by coordinating volunteer events on Wednesday afternoons. The goal of these meetings was to educate members on how to identify both common woodland plants and invasive species. These sessions were also combined with efforts to remove garlic mustard and perform experiments regarding other invasive species.
In order to mitigate some of the impacts of invasive species, the two interns worked on several components of a larger goal, which is to develop a comprehensive plan to systematically work towards controlling invasive species at the CSA.
To find out what some of the personal and cultural barriers and bridges are to getting individuals involved with removing invasive species, a survey was distributed to the general population throughout six weeks of the summer season. A significant portion of this survey was based around the Hines Model for Environmentally Responsible Behavior, which identifies key variables that strongly correlate to pro-environmental behaviors. A series of follow-up interviews with some of the respondents were also conducted to gather more in-depth information.
In summary, it was found that most of the respondents are concerned about invasive species at the CSA, but they either do not have the time to invest in removal during their stay or they lack the proper tools and education to identify and remove invasive species. Other themes elicited include that some of the invasive species identified, myrtle in particular, may be desirable to some cottage owners for both aesthetic and functional reasons and that the infrastructure of the CSA, as a mix of private and common property, presents challenges to management as the intended uses for adjacent areas may be vastly different.
Building on the baseline assessment done in 2009, the 2010 interns conducted a field survey of the 123-acre CSA grounds to quantify the presence of the identified early invaders, such as honeysuckle, barberry, and garlic mustard. With the help of volunteers, the interns covered the area, tracking the occurrence of invasives by tagging them with pink tape and logging them in a GPS Trimble Unit. By recording the locations of invasives, data can be kept that will help monitor the progress of management and evaluate methods of removal. It may also prove to be useful when re-checking areas from season to season. The results of this survey are still being tabulated, but preliminary data show some overall trends.
- For example, widespread community efforts to pull garlic mustard have had a significant impact on the amount present at the CSA. The garlic mustard found in the survey tended to be on steep hillsides or far from roads and cottages where it is unlikely that many people would venture to pull. Unfortunately, these areas are often of the highest priority to manage because these communities support the most native biodiversity. It is recommended that the CSA find a way to control garlic mustard in these difficult areas, perhaps by hiring able-bodied labor.
- Exotic honeysuckle bushes were most often found near roads or buildings, in sunny areas, or near disturbed locations, such as areas of fragmentation or natural disturbances.
- Barberry bushes were noted both near buildings and cottages, where they may have been planted as ornamentals in landscaping, and in the woods. The presence of barberry was relatively sporadic, most bushes occurring within several meters of each other in isolated clumps.
After having identified the locations of these invasive species, the interns worked closely with the Buildings and Grounds Committee, Managing Director Ken Cox, and Groundskeeper Eddie Elsworth to prioritize and implement removal. Eddie has done a tremendous job with beginning the process by cutting and treating some of these invaders.
A great deal of research was performed by the two interns to learn about how to best remove invasive species and how to restore these areas with native plants. The interns met with the Invasive Species Management Team at Sleeping Bear Dunes National Park to study their methods of removal and learn about some of the research they are doing. Katie submitted five samples to the Michigan State Diagnostic Services to help identify certain plants down to specie. Lauren worked in conjunction with Vern Stephens of Design by Nature and with the group Plant It Wild to find appropriate native plants to use in the CSA Garden and in our experiments.
One of this summer’s projects was to install a native plant garden on CSA grounds to display some perennial natives that may be used around cottages. This demonstration area showcases some of the benefits of native plants, such as their proclivity to coexist with other natives and their relatively low maintenance. Armed with the help of volunteers, this garden was installed directly to the east of the Meeting House in early July. Currently, two restoration projects are also underway at different cottages to determine some native alternative groundcovers to myrtle and the most effective means of removing myrtle should people wish to do so.
As with many investigations, our studies have raised further questions. Some of these inquiries will be part of future projects.
A full detailed report and analysis of these projects will be coming soon. Submitted by Katie Hartin and Lauren Hoerr, this document will provide much more in-depth information on what we have learned this past summer, including data from the member survey and field survey.