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.
Looking for macroinvertebrate identification resources?
Entomology Staff
Entomology News
![Publication title with image of a mayfly](https://stroudcenter.org/wp-content/uploads/publication-e1554320152730.jpg)
To achieve the Clean Water Act’s goals, prioritize upstream ecology
Ensign, S.H., D.B. Arscott, M. Daniels, C. Dow, J.K. Jackson, D. Oviedo-Vargas, and M. Peipoch. 2024. Water Resources IMPACT 26(3): 19–21.
![A female mayfly with a ball of eggs attached to the underside of her abdomen.](https://stroudcenter.org/wp-content/uploads/pregnantmayfly.jpg)
The Magic of Mayflies
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](https://stroudcenter.org/wp-content/uploads/publication-e1554320152730.jpg)
Variation in freshwater insect osmoregulatory traits: A comparative approach
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.
![A map of southeastern Pennsylvania showing impacted streams and developed land use.](https://stroudcenter.org/wp-content/uploads/Pennsylvania-impacted-streams-and-developed-land-use.png)
The Stream Restoration Puzzle
A new Stroud Water Research Center presentation examines why investment projects often fail to meet water quality standards.
![Stroud Center Collaborations Amplify Impact on Fresh Water](https://stroudcenter.org/wp-content/uploads/electrofishing-national-park-stream.jpg)
Stroud Center Collaborations Amplify Impact on Fresh Water
Scientists, educators, and watershed restoration professionals are working together to create long-lasting and positive impacts on waterways.
![The 2023 interns pose in front of a Stroud Center backdrop.](https://stroudcenter.org/wp-content/uploads/2023-intern-group-photo.jpg)
Meet Our 2023 Interns
Our interns assist with research and other mission-focused work and gain valuable professional experience and networking opportunities.