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Gnat-ural predators: Migratory dragonflies hunt clouds of mating midges

A large green and blue dragonfly perches on a wooden bench.
Charlie Mitchell
/
KAXE
A green darner dragonfly perches on a bench near Marine on Saint Croix on July 11, 2024.

During the Phenology Report for the week of Sept. 16, Staff Phenologist John Latimer covers hunting dragonflies, fall colors and phenomenal fungi.

John Latimer, KAXE’s staff phenologist, began this week with two observations from listeners: Monarch butterflies moving through Grand Rapids, and migratory green darner dragonflies feasting on clouds of midges near Fort Ripley.

Darners are larger dragonflies, and the common green darner is a particularly distinctive species; males have a bright green and blue coloration. Darners and meadowhawks to be quite cold resistant varieties of dragonfly: John sees them out and about on warm days even after the first few frosts. The migration of the common green darner is a fascinating story — if you’re interested, there’s a great article on them here.

Also in this week’s report: Fruits, fungi and fall colors!

Topics

  • Introduction (0:00-0:24)
  • Dragonflies, gnats, and butterflies (0:24-5:11)
  • Insect pests (5:11-6:12)
  • Hummingbird migration (6:12-7:39)
  • Fruiting plants (7:39-10:44)
  • Mushrooms and fungi (10:44-12:00)
  • Wildflowers (12:00-14:06)
  • Fall colors (14:06-17:04)
  • Conclusion (17:04-17:47)

What have you seen out there? Let us know: email us at comments@kaxe.org or text us at 218-326-1234.

That does it for this week! For more phenology, subscribe to our Season Watch Newsletter or visit the Season Watch Facebook page.

Funding for this project was provided by the Minnesota Environment and Natural Resources Trust Fund as recommended by the Legislative-Citizen Commission on Minnesota Resources (LCCMR).

Charlie Mitchell (she/they) joined KAXE in February of 2022. Charlie creates the Season Watch Newsletter, produces the Phenology Talkbacks show, coordinates the Phenology in the Classroom program, and writes nature-related stories for KAXE's website. Essentailly, Charlie is John Latimer's faithful sidekick and makes sure all of KAXE's nature/phenology programs find a second life online and in podcast form.


With a background in ecology and evolutionary biology, Charlie enjoys learning a little bit about everything, whether it's plants, mushrooms, or the star-nosed mole. (Fun fact: Moles store fat in their tails, so they don't outgrow their tunnels every time conditions are good.)
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