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.
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…
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…
Without any mouth parts, fully mature adult mayflies, called spinners, cannot eat, and so most live but a single day.
Funk’s insatiable curiousity has served him well during 45 years as a instrumental player on landmark freshwater studies at the Stroud 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.
Funk, D.H., B.W. Sweeney, and J.K. Jackson. 2021. Journal of Experimental Biology 224:jeb.233338.
Hsuan C., D.D. Jima, D.H. Funk, J.K. Jackson, B.W. Sweeney, and D.B. Buchwalter. 2020. Nature Scientific Reports 10:19119.
Entomologist David Funk presents an hour-long dive into the natural histories of some of the most fascinating stream insects he has photographed.
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.