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Funk

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.

Publication title with image of a mayfly

Variation in freshwater insect osmoregulatory traits: A comparative approach

350 210 Stroud Water Research Center

Cochran, J.K., S.E. Orr, D.H. Funk, A.C. Figurskey, M.H. Reiskind, and D.B. Buchwalter. 2024. Ecological and Evolutionary Physiology, early online access.

Ecotoxicity Study for Mayflies Exposed to Elevated Concentrations of Chloride at Different Temperatures

800 532 Stroud Water Research Center

Chloride concentrations in surface waters have been increasing over the last several decades at multiple locations throughout the United States. At times, it appears that ambient chloride concentrations now reach…

Thermal Limitation in Aquatic Insects: Implications for Freshwater Biodiversity in a Warming World

800 532 Stroud Water Research Center

This project tests the hypothesis that temperature limits the distributions of aquatic insects through its effect on resource allocation, and that warming decreases reproduction by shunting energy away from egg…

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.

Video still from the Hidden World of Stream Insects webinar.

The Hidden World of Stream Insects

800 450 Stroud Water Research Center

Entomologist David Funk presents an hour-long dive into the natural histories of some of the most fascinating stream insects he has photographed.

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.