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David Funk

500 500 Stroud Water Research Center

Entomologist

Entomology Group

Director of Facilities

Facilities Department

Contact

dfunk@stroudcenter.org
tel. 610-268-2153, ext. 237
970 Spencer Road, Avondale, PA 19311

Interests and Expertise

I am interested in all aspects of aquatic insect biology, especially the resolution of species using genetics, reproductive biology, and life history data. I have also combined my interests in entomology and photography to produce a large collection of images of aquatic insects in their native habitat.

Google Scholar

Publications

Why adult mayflies of Cloeon dipterum (Ephemeroptera:Baetidae) become smaller as temperature warms

Sweeney, B.W., D.H. Funk, A.A. Camp, D.B. Buchwalter, and J.K. Jackson. 2018. Freshwater Science 37(1):64–81.

Arsenic (V) bioconcentration kinetics in freshwater macroinvertebrates and periphyton is influenced by pH

Lopez, A.R., D.H. Funk, and D.B. Buchwalter. 2017. Environmental Pollution 224:82–88.

Physiological responses to short-term thermal stress in mayfly (Neocloeon triangulifer) larvae in relation to upper thermal limits

Kim, K.S., H. Chou, D.H. FunkJ.K. JacksonB.W. Sweeney, and D.B. Buchwalter. 2017. Journal of Experimental Biology 220:2598–2605.

Colonization and diversification of aquatic insects on three Macronesian archipelagos using 59 nuclear loci derived from a draft genome

Rutschmann, S., H. Detering, S. Simon, D.H. Funk, J-L. Gattolliat, S.J. Hughes, P.M. Raposeiro, R. DeSalle, M. Sartori, M.T. Monaghan. 2017. Molecular Phylogenetics and Evolution 107:27–38.

Macroinvertebrates of rivers and creeks along the interoceanic highway, Cusco and Puerto Maldonado, Perú

Sweeney, B. W., D.H. Funk, R. W. Flowers, T. Gonzales, and A. Huamantinco. 2017. Museum Guide No. 843, The Field Museum, Chicago, Illinois.

See all publications by Stroud Center authors

Photography

I have been taking pictures of insects for more than 35 years and have developed special equipment such as a shallow underwater rig (pictured below) for taking in-stream photos of aquatic insects. My photographs have appeared in numerous books and magazines, including Natural History, Scientific American, Ranger Rick, National Wildlife, Wings (Xerces Society), BBC Wildlife, and Nature Australia.

Related News

The Hidden World of Stream Insects

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

Modeling Mayflies to Understand the Challenges of a Warming Planet

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

Stories From the Streams: Salty Streams

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.

Test Your Skills With the #MysteryMacro Quiz

Want a fun way to learn about freshwater macroinvertebrates? Check out the Pennsylvania Fish and Boat Commission #MysteryMacro quiz featuring photos by Dave Funk.

Mayfly Eggs Hatching a Minute After Being Laid

This ovoviviparous mayfly holds her eggs internally until embryonic development is complete after which she lays them in water and they hatch immediately.

Monitoring the Health of the Susquehanna

Stroud™ Water Research Center’s annual sampling of the Susquehanna River near Mehoopany, Pennsylvania, was chronicled in an article in an

Mystery Midge with “Kite Tail” Eggs

Stroud Center entomologist David Funk documented the unusual behavior of an orthoclad midge species at Lake Umbagog on the Maine/New

Mystery Midge with “Kite Tail” Eggs

Stroud Center entomologist David Funk documented the unusual behavior of an orthoclad midge species at Lake Umbagog on the Maine/New Hampshire border: Adult females fly over the lake and extrude long strings of eggs which they eventually drop into the water.

Could Rising Temps Be Killing Mayflies, Threatening Streams? Scientists Investigate.

When mayfly populations decline, it's a warning that something has gone wrong. But what? Stroud Center scientists and their colleagues are investigating.

Sharing Our Science: Winter-Spring 2016

For the long-tailed dance fly, every night is ladies’ night, Dave Funk explained in a lecture a University of Delaware insect ecology class.

2015 Stroud Center Publications

Stroud Center scientists have authored or co-authored more than two dozen scientific papers this year, exhibiting the range of our

UpStream Newsletter, December 2013

Low Levels of Fracking Wastewater Highly Toxic to Mayflies: Stroud Center scientists find mayflies, whose presence indicates good water quality, are significantly affected by low levels of produced water.

UpStream Newsletter, July 2013

Where the Wells Run Dry: To predict the potential impact of climate variability, climate change, land use, and human activity on water resources in the Central Great Plains, Melinda Daniels, Ph.D., is leading a three-year research project recently funded by the National Science Foundation.

UpStream Newsletter, June 2013

A Holistic Approach to Restoring Streams: Our Watershed Restoration Group has an ambitious goal -- add forested buffers along the entire length of two streams over the next two years.

Monitors Find Healthy Signs in Hay Creek Near Birdsboro

April 21, 2010. bctv.org: Stroud Water Research Center employees were interviewed while monitoring Hay Creek during their annual Schuylkill River Watershed monitoring.

UpStream Newsletter, Spring 2008

A documentary film chronicles how students rowed, paddled, and across the watersheds that provide nine million New Yorkers with drinking water.

UpStream Newsletter, Fall 2001

The Stroud Center’s federally funded study of riparian forest buffers in West and East Bradford townships in Chester County, turns 10 years old this year.

UpStream Newsletter, Spring 2000

The Stroud Center, internationally-known for its knowledge of small streams, is now doing a research project on the nation’s largest river, the Mississippi.