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Entomology Group

600 400 Stroud Water Research Center

The Entomology Group studies factors that affect the distribution and abundance of aquatic invertebrates, the functional role of invertebrates in stream and river ecosystems, and how these invertebrate communities respond to human activities in temperate and tropical watersheds.

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Looking for macroinvertebrate identification resources?

Entomology Staff

Headshot of Jan Battle.

Juliann Battle

Staff Scientist
Katie Billé

Catherine Billé

Staff Scientist
Michael Broomall headshot.

Michael Broomall

Staff Scientist, Taxonomic Certification Program Coordinator
Adam Gochnauer

Adam Gochnauer

Staff Scientist
John Jackson, Ph.D.

John Jackson, Ph.D.

Senior Research Scientist

Entomology News

John Jackson in the Stroud Center Streamhouse.
Scientist Known for Road Salt Research and Policy Guidance Earns Top Honor
John K. Jackson, Ph.D., has been recognized for research, community leadership, and protecting streams and drinking water.
A scientist talks about macroinvertebrates at World Water Day.
Science Open House Draws Locals to Stroud Center for World Water Day
World Water Day 2026 brought over 100 visitors for hands-on science, stream fun, and more. Join us on March 27, 2027, for new activities and more science.
Stroud Center Scientist Testifies About Stream Impairment
Stroud Center Scientist Testifies About Stream Impairment
The public hearing was organized in response to the Integrated Water Quality Report 2026 issued by the Pennsylvania Department of Environmental Protection.
Abigail Duimering samples macroinvertebrates in White Clay Creek.
Wading Through Disciplines
From aquatic insects to microbial DNA, an intern explores how collaboration across disciplines advances stream and soil health research.
A sample of aquatic macroinvertebrates viewed under a microscope.
Building Scientific Rigor Through Certified Taxonomic Expertise
Taxonomic certification administered by the Stroud Center is the gold standard, with certifications in aquatic invertebrates, diatoms, and soon, fish.
Dave Funk collects macroinvertebrate samples from a stream.
Six New Species of Mayfly Identified: A Video Interview with Dave Funk
Entomologist Dave Funk shares how his 2025 study named six new Ameletus mayflies — and what these parthenogenetic insects reveal about stream health.