John Jackson Ph.D., Senior Research Scientist at Stroud Water Research Center, specializing in freshwater ecology and entomology.
John Jackson, Ph.D., is a distinguished Senior Research Scientist at the renowned Stroud Water Research Center. His expertise spans across various facets of freshwater science, establishing him as a leading figure in the field of stream ecology and entomology. Beyond his role at Stroud, John Jackson also imparts his extensive knowledge as an adjunct professor at both the University of Delaware and the University of Pennsylvania, shaping the next generation of environmental scientists.
Expertise in Freshwater Science and Stream Ecology
Dr. John Jackson’s research interests are broad and impactful, encompassing both applied and fundamental aspects of stream ecosystems. His work delves into the population and evolutionary ecology of stream insects, crucial components of freshwater biodiversity. He investigates the intricate interplay of abiotic factors like temperature and flow, and biotic processes such as species interactions, in shaping stream communities. Furthermore, John Jackson explores the vital energy and nutrient exchange within streams and between these aquatic systems and their surrounding landscapes, highlighting the interconnectedness of watersheds. His commitment to practical applications is evident in his work on benthic monitoring and water quality assessment, contributing directly to environmental management and conservation efforts.
Specific research projects led by John Jackson have explored the growth and development of aquatic insects, providing insights into their life cycles and responses to environmental changes. He has examined the influence of dispersal mechanisms, population dynamics, and environmental variability on the genetic structure of stream organisms, revealing adaptation and resilience in these sensitive ecosystems. His research also addresses the ecological significance of disturbance events in aquatic insect communities, understanding how streams recover from natural and anthropogenic stressors. Spatial and temporal variations in the distribution and abundance of stream insects are another key focus, essential for effective conservation planning. Moreover, John Jackson’s work on organic matter dynamics and secondary production elucidates the fundamental processes that drive stream food webs. His research has taken him to diverse locations, including both temperate and tropical streams, providing a global perspective on freshwater ecosystems.
Academic Background and Education
Dr. Jackson’s solid academic foundation underpins his impactful research career. He earned his Ph.D. in Entomology from the prestigious University of California, Berkeley. Prior to that, he obtained a Master of Science degree in Zoology from Arizona State University. His undergraduate studies were completed at the University of Notre Dame, where he graduated with a Bachelor of Science degree with Honors in Biology, setting the stage for his future contributions to ecological science.
Professional Career and Contributions
John Jackson’s career trajectory demonstrates a sustained commitment to freshwater research and education. He has been a Senior Research Scientist at the Stroud Water Research Center since 2007, leading significant research initiatives. His affiliation with the University of Pennsylvania as an Adjunct Professor of Biology began in 2001 and continues to this day. Similarly, he has served as an Adjunct Professor in the Department of Entomology and Wildlife Ecology at the University of Delaware since 1992, demonstrating a long-standing dedication to teaching and mentorship. Prior to his current senior role, he was an Associate Research Scientist at the Stroud Center from 1999 to 2007. A notable international experience includes his tenure as a Fulbright Senior Scholar at the Institut für Zoologie und Limnologie, Universität Innsbruck, Austria in 1998. His early career was shaped by his roles as a Postdoctoral Research Associate, Assistant Curator, and Associate Curator at the Division of Environmental Research, Stroud Water Research Center, within The Academy of Natural Sciences of Philadelphia from 1990 to 1999.
Selected Publications and Impact
Dr. John Jackson’s research is widely disseminated through numerous peer-reviewed publications, contributing significantly to the scientific literature. His recent publications reflect his ongoing and impactful research:
- Advancing freshwater science with sensor data collected by community scientists: This 2024 publication in Frontiers in Ecology and the Environment highlights the innovative use of community-collected data for advancing freshwater research, co-authored with Oviedo-Vargas, D., M. Peipoch, S.H. Ensign, D. Bressler, D.B. Arscott, and J.K. Jackson.
- To achieve the Clean Water Act’s goals, prioritize upstream ecology: Published in Water Resources IMPACT in 2024, this work emphasizes the critical importance of upstream ecosystems for achieving broader water quality goals, with contributions from Ensign, S.H., D.B. Arscott, M. Daniels, C. Dow, J.K. Jackson, D. Oviedo-Vargas, and M. Peipoch.
- Atlantic Coast rivers of the northeastern United States: Featured in the 2nd Edition of Rivers of North America in 2023, this chapter, authored by Jackson, J.K., S.A. Entrekin, H.S. Greig, and A.H. Roy, provides a comprehensive overview of the river systems in this ecologically significant region.
- Oxygen limitation fails to explain upper chronic thermal limits and the temperature size rule in mayflies: Published in the Journal of Experimental Biology in 2021, this study, with co-authors Funk, D.H., B.W. Sweeney, and J.K. Jackson, investigates the physiological responses of mayflies to thermal stress, relevant in the context of climate change.
- Transcriptomic and life history responses of the mayfly Neocloeon triangulifer to chronic diel thermal challenge: This 2020 publication in Nature Scientific Reports explores the complex biological responses of mayflies to thermal challenges at a molecular level, co-authored by Hsuan C., D.D. Jima, D.H. Funk, J.K. Jackson, B.W. Sweeney, and D.B. Buchwalter.
These publications represent a small selection of Dr. Jackson’s extensive contributions, demonstrating his leadership in freshwater research.
John Jackson in the News
Dr. Jackson’s expertise is also sought after by news media to inform the public about critical freshwater issues. He has been featured in several news reports and podcasts, highlighting the relevance of his research to broader societal concerns:
- Road Salt in Streams (WHYY’s Studio 2): Dr. Jackson discussed the growing problem of road salt contamination in waterways, raising public awareness about this environmental issue.
- Conducting World-Leading, Innovative Freshwater Research (Start Local podcast): He shared insights into the Stroud Center’s innovative approaches to freshwater research and conservation on this podcast.
- Too Hot to Handle: How Rising Temperature Impacts Streams: Dr. Jackson contributed to discussions on the detrimental effects of rising stream temperatures on aquatic habitats and species.
- Winter Salt Week Unites Those Concerned About Fresh Water & Four Seasons of Salt Threaten Wildlife: These news pieces highlight the Stroud Center’s initiatives on addressing salt pollution, featuring Dr. Jackson’s expertise.
In conclusion, John Jackson, Ph.D., stands as a prominent figure in freshwater ecology and entomology. Through his extensive research, teaching, and public engagement, he significantly contributes to our understanding and conservation of vital freshwater ecosystems. His ongoing work at the Stroud Water Research Center and his academic affiliations solidify his position as a leading expert in the field, making him a valuable resource for both the scientific community and the broader public concerned with water resources.
