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John Jackson, Ph.D.

500 500 Stroud Water Research Center
John Jackson, Ph.D.

Senior Research Scientist

  • Principal investigator, Entomology Group.
  • Adjunct professor of entomology and wildlife ecology, University of Delaware.
  • Adjunct professor of biology, University of Pennsylvania.

Contact

jkjackson@stroudcenter.org
tel. 610-268-2153, ext. 1226
970 Spencer Road, Avondale, PA 19311

Interests and Expertise

John Jackson’s research interests span a variety of applied and basic subjects, including population and evolutionary ecology of stream insects, the role of abiotic and biotic processes in determining the structure and function of stream assemblages, energy and nutrient exchange within streams and between streams and their surrounding watersheds, and benthic monitoring and water quality assessment. Specific projects that address these research interests include studies of growth and development of aquatic insects, the influence of dispersal, population dynamics, and environmental variation on genetic structure of stream organisms, the evolutionary and ecological significance of disturbance in aquatic insect ecology, spatial and temporal variation in the distribution and abundance of stream insects, and organic matter dynamics and secondary production. These studies have been located in temperate and/or tropical streams.

Education

  • Ph.D., entomology, University of California, Berkeley, California.
  • M.S., zoology, Arizona State University, Tempe, Arizona.
  • B.S., biology (Honors), University of Notre Dame, Notre Dame, Indiana.

Professional Experience

  • Senior research scientist, Stroud Water Research Center, 2007–present.
  • Adjunct professor, biology, University of Pennsylvania, Philadelphia, Pennsylvania, 2001–present.
  • Adjunct Professor, entomology and wildlife ecology, University of Delaware, Newark, Delaware, 1992–present.
  • Associate research scientist, Stroud Water Research Center, 1999–2007.
  • Fulbright senior scholar at Institut für Zoologie und Limnologie, Universität Innsbruck, Austria, 1998.
  • Postdoctoral research associate, assistant curator, and associate curator, Division of Environmental Research, Stroud Water Research Center, The Academy of Natural Sciences of Philadelphia, 1990–1999.

Publications

Agricultural policy and practice in the Chesapeake and Delaware Watersheds

Ehrhart, M. and J. Jackson. 2018. Water Resources Impact 20(5):22-23.

The good, the bad and the lethal: gene expression and metabolomics reveal physiological mechanisms underlying chronic thermal effects in mayfly larvae (Neocloeon triangulifer)

Chou, H., W. Pathmasiri, J. Deese-Spruill, S.J. Sumner, D. Jima, D. Funk, J. Jackson, B. Sweeney, and D. Buchwalter. 2018. Frontiers in Ecology and Evolution 6:27.

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.

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. Funk, J.K. Jackson, B.W. Sweeney, and D.B. Buchwalter. 2017. Journal of Experimental Biology 220:2598–2605.

Detecting signatures of competition from observational data: a combined approach using DNA barcoding, diversity partitioning and checkerboards at small spatial scales

Bringloe, T., S. J. Adamowicz, V. F. I. Harvey, J. K. Jackson, K. Cottenie. 2016. Freshwater Biology 61:646–657.

See publications by all Stroud Center authors

Stream Degradation and Restoration With Aquatic Insects as Our Guide

This webinar aimed to help agricultural conservation and ecosystem restoration practitioners reorient efforts toward watershed-scale approaches to achieve local restoration goals.

Oxygen Not Behind Threat To Mayflies When Temps Rise

When stream temperatures rise, often as a result of climate change or thermal pollution or a lack of tree shade, mayflies display poorer growth.

Patience is the Mother of Science: Long-Term Responses of a Stream to Reforestation

We're studying how White Clay Creek can recover from deforestation and agricultural expansion and to what extent restoration practices can acclerate that recovery.

Stream Reach: Building Communities from White Clay Creek to the Yangtze Basin

To truly make a difference requires, not only understanding freshwater systems, but working with all kinds of communities to protect them.

The Intersection of Science and Policy for Clean Water and a Healthy Delaware River

Watch the video of the first webinar in a four-part series celebrating American River's 2020 River of the Year, Delaware River.

Earth Day Celebration: A Streaming Perspective

In this webinar recording John Jackson, Ph.D., talks about the 50th anniversary of Earth Day and its importance from the perspective of a stream.
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