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Increasing Illinois and Indiana Shoreline Resilience: Information A to Z Thumbnail
File Type: pdf
File Size: 748.93 KB
Year: 2021

Following IISG’s 2020 workshop focused on lake level variability and communication, one of the key products that participants needed was a list of what types of issues different organizations handle, such as funding, permitting, and other general information needs. This product thoroughly lists the ways in which several federal, Illinois, Indiana and independent organizations can assist coastal communities.

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Indiana Master Watershed Steward Thumbnail

Year: 2019

Indiana Master Watershed Stewards are trained volunteers who understand how watersheds work and are willing to help with watershed improvement efforts in their communities. Master Watershed Stewards complete a 12-week training program that pulls together information from scientists, researchers, and watershed management professionals. Topics will include how watersheds function, what factors affect watershed health, how water is managed for human use, and how volunteers can play a part in promoting watershed health and appreciation.

For more detailed information, visit Indiana Master Watershed Steward


Individual and spatial variation are as important as species level variation to the trophic complexity of a lentic food web Thumbnail

Year: 2019

Ecological complexity may improve ecosystem function, stability and adaptability to natural and anthropogenic disturbances. Intraspecific trophic variation can represent a significant component of total community variation and can influence food web structure and function. Thus, understanding how trophic niches are partitioned between intraspecific and interspecific processes could improve our understanding of food web dynamics.

We examined gut contents, fatty acids and stable isotope ratios in round goby (Neogobius melanostomus) and yellow perch (Perca flavescens) across six sites in Lake Michigan, USA, to determine patterns in intra‐ and interspecific trophic composition (i.e., mean gut or fatty acid composition) and diversity (i.e., the diversity of gut items or fatty acids). We also examined relationships between fatty acid diversity and gut content characteristics to understand potential mechanisms shaping individual trophic phenotypes. There was significant variation in both trophic composition and diversity among sites, and individual and spatial variation was as important to total trophic variation as species identity. Round goby that consumed dreissenid mussels had more diverse fatty acid profiles than those that consumed other benthic invertebrates, whereas yellow perch fatty acid diversity was not related to gut content composition. Our results confirm that intraspecific variation in resource use can be as important to trophic dynamics as interspecific variation, and that spatial variation in lower level food web processes or habitat may strongly structure local food web dynamics. Individual‐level examination of trophic diversity, in concert with trophic composition, could provide additional information about the resilience, function and adaptability of local food webs.

Document available through publisher’s website: 10.1111/eff.12472


Informing the Development of the Great Lakes Region Decision Support System Thumbnail

Year: 2020

Land use planners in the Great Lakes region make recommendations that can affect the quality and quantity of ground and surface water resources. Challenges include a lack of up-to-date data, and insufficient political and financial support. In this publication, university researchers in the Great Lakes region show how collaboration led to development and maintenance of an online decision support system.

Document is available from the Purdue Extension Education Store at, https://mdc.itap.purdue.edu/item.asp?Item_Number=FNR-601-W.


Page 16 of 33

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