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A female mayfly with a ball of eggs attached to the underside of her abdomen.

The Magic of Mayflies

720 524 Stroud Water Research Center

If you’ve ever hiked along a woodland stream on a warm spring day, you may have seen these tiny creatures swarming together, fluttering in a midair dance.

The Bug Whisperer: Dave Funk Decodes Mysteries of Mayflies and Other Clean-Water Lovers

800 450 Stroud Water Research Center

Funk’s insatiable curiousity has served him well during 45 years as a instrumental player on landmark freshwater studies at the Stroud Center.

Cloeon dipterum, female imago (adult).

Oxygen Not Behind Threat To Mayflies When Temps Rise

800 450 Stroud Water Research Center

When stream temperatures rise, often as a result of climate change or thermal pollution or a lack of tree shade, mayflies display poorer growth.

Publication title with image of a mayfly

Transcriptomic and life history responses of the mayfly Neocloeon triangulifer to chronic diel thermal challenge

350 210 Stroud Water Research Center

Hsuan C., D.D. Jima, D.H. Funk, J.K. Jackson, B.W. Sweeney, and D.B. Buchwalter. 2020. Nature Scientific Reports 10:19119.

Watch Mayfly Nymphs Hatch Instantly

800 450 Stroud Water Research Center

This video by Stroud Center Entomologist David Funk captured the moment an ovoviviparous mayfly laid a brood of eggs that hatched immediately into hundreds of nymphs.

Photo of the mayfly, Neocloeon triangulifer, by DH Funk

Modeling Mayflies to Understand the Challenges of a Warming Planet

800 450 Stroud Water Research Center

There are some questions too complicated for lab experiments to answer.

Publication title with image of a mayfly

Space colonization by branching trachea explains the morphospace of a simple respiratory organ

350 210 Stroud Water Research Center

Ruiz-Sobrino, A., C.A. Martín-Blanco, T. Navarro, I. Almudi, G. Masiero, M. Jimenez-Caballero, D.B. Buchwalter, D.H. Funk, J.L. Gattolliat, M.C. Lemos, F. Jiménez, and F. Casares. 2020. Developmental Biology 462(1): 50–59.

Video still from Episode 5 of the WHYY "Stories From the Streams" video series

Stories From the Streams: Salty Streams

838 473 Stroud Water Research Center

How salty is too salty? Road salt keeps travelers safe in winter but can pose a serious threat to nearby streams. Episode 5 in the “Stories from the Streams” series from WHYY TV12.