Hine’s Emerald Dragonfly

Hine’s Emerald Dragonfly (HED) is the only federally endangered dragonfly in the contiguous
U.S and inhabits fens only in Illinois, Michigan, Wisconsin, and Missouri.

We are developing a species distribution model using characteristics (e.g., soils, climate, geology) of known localities to
predict potential unknown sites or habitats.

We are also building a detection model for the HED to inform land managers and biologists on the effort and ideal environmental conditions needed to confidently determine HED absence at a given location.

During the flight season for adults, repeated random-length timed visual encounter surveys are conducted at fixed locations at a site known to contain HEDs. All dragonflies observed are recorded. Environmental variables are taken at the start and end of each survey and will enable us to determine the best conditions to survey for HED.

In 2018, we conducted 120 surveys at a location in Illinois known to have Hine’s Emerald Dragonflies.

For more information, read The Search for Flying Dragons on the Prairie