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Funk

Watch Mayfly Nymphs Hatch Instantly

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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, early online access.

Publication title with image of a mayfly

Evaluating water quality for Amazonian streams along the Interoceanic Highway in Peru using macroinvertebrates collected by hand and with leaf packs

350 210 Stroud Water Research Center

Sweeney, B.W., J.M. Battle, D.H. Funk, R.W. Flowers, T. Gonzales Ojeda, A. Huamantinco, J.K. Jackson, and M. Arnold. 2020. Limnologica, early online access.

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

Stories From the Streams: Salty Streams

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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.

Publication title with image of a mayfly

Why some mayfly adults are older and larger: photoperiodic induction of larval quiescence

350 210 Stroud Water Research Center

Funk, D.H., B.W. Sweeney, and J.K. Jackson. 2019. Freshwater Science, early online access.

Publication title with image of a mayfly

Temperature affects acute mayfly responses to elevated salinity: implications for toxicity of road de-icing salts

350 210 Stroud Water Research Center

Jackson, J.K., and D.H. Funk. 2018. Philosophical Transactions of the Royal Society B: Biological Sciences 374(1764).

Brachycentridae (brachycentrid caddisflies)

#MysteryMacro Quiz Answers

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Spoiler alert! These are the ANSWERS for the Pennsylvania Fish and Boat Commission Facebook #MysteryMacro questions featuring photos by Stroud Center entomologist Dave Funk.

Join the Clean Water Paddle Push!

When: August 1–16
Where: A body of water near you!

Grab your paddleboard, canoe, kayak, or inner tube and hit a body of water near you during our two-week celebration of water, the earth’s most vital natural resource.

Get all the details