by Friends of Hackmatack | May 4, 2022 | Learn the Science of Hackmatack
What can you find on the Refuge? This list is a sampling of the many native species found in Northern Illinois and Southern Wisconsin. Have you spotted something? Send us a note, or share a photo and we will post it on our social media. Come back to this page to see...
by Friends of Hackmatack | May 24, 2013 | Learn the Science of Hackmatack
Besides physical measurements such as water testing for chemicals or clarity, biologists often use inventories of “indicator species” to determine the ecological health of an aquatic ecosystem. Two groups of living organisms, fish and freshwater mussels, are excellent...
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