John K. Jackson Ph.D.
Senior Research Scientist
970 Spencer Road
Avondale, PA 19311
610.268.2153 x 226
Principal Investigator of the Entomology group
Adjunct Professor of Entomology and Applied Ecology, University of Delaware
Adjunct Professor of Biology, University of Pennsylvania
My 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.
Ph.D., Entomology, University of California, Berkeley, CA, 1989.
M.S., Zoology, Arizona State University, Tempe, AZ, 1984.
B.S., Biology (Honors), University of Notre Dame, Notre Dame, IN, 1982.
Fulbright Senior Scholar at Institut fur Zoologie und Limnologie, Universitat 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.
Jackson, J.K., J.M. Battle, B.P. White, E.M. Pilgrim, E.D. Stein, P.E. Miller, and B.W. Sweeney. 2014. Cryptic biodiversity in streams — a comparison of macroinvertebrate communities based on morphological and DNA barcode identifications. Freshwater Science 33:312-324.
Stein, E. D., B. P. White, R. D. Mazor, J. K. Jackson, J. M. Battle, P. E. Miller, E. M. Pilgrim, and B. W. Sweeney. 2014. Does DNA barcoding improve performance of traditional stream bioassessment metrics? Freshwater Science 33:302-311.
Bott, T.L., J.K. Jackson, M.E. McTammany, J.D. Newbold, S.T. Rier, B. W. Sweeney, J.M. Battle. 2012. Abandoned coal mine drainage and its remediation: Impacts on stream ecosystem structure and function. Ecological Applications 22:2144-2163.
Brookshire, E.N.J., L.O. Hedin, J.D. Newbold, D.M. Sigman, J.K. Jackson. 2012. Sustained losses of bioavailable nitrogen from montane tropical forests. Nature Geoscience 5:123-126. DOI: 10.1038/NGEO1372
Resh, V.H., M. Hannaford, J.K. Jackson, G.A. Lamberti, and P.K. Mendez. 2011. The biology of the limnephilid caddisfly Dicosmoecus gilvipes (Hagen) in Northern California and Oregon (USA) streams. Zoosymposia 5:413-419.
Sweeney, B.W., J.M. Battle, J.K. Jackson, and T. Dapkey. 2011. Can DNA barcodes of stream macroinvertebrates improve descriptions of community structure and water quality? Journal of the North American Benthological Society 30:195-216.
Terlecki, M., D. Dunbar, C. Nielsen, C. McGauley, L. Ratmansky, N.L. Watterson, J. Hannum, K. Seidler, E. Bongiorno, O. Owens, P. Goodman, C. Marshall, S. Gill, K. Travers, J. Jackson. 2010. The Crabby Creek initiative: Building and sustaining an interdisciplinary community partnership. Journal of Community Engagement and Scholarship 3.1: 40-50.
Funk, D. H., B. W. Sweeney, and J. K. Jackson. Why stream mayflies can reproduce without males but remain bisexual: a case of lost genetic variation. doi:10.1899/10-015.1. Journal of the North American Benthological Society 29: 1258-1266.
Jackson, J. K., J.M. Battle, and B.W. Sweeney. 2010. Monitoring the health of large rivers with macroinvertebrates: do dominant taxa help or hinder the assessment? River Research and Applications.
Sweeney, B.W., R.W. Flowers, D.H. Funk, S. Avila A., J.K. Jackson. 2009. Mayfly communities in two Neotropical lowland forests. Aquatic Insects 31, Suppl. 1: 311-318.
Funk, D.H, B.W. Sweeney, and J.K. Jackson. 2008. A taxonomic reassessment of the Drunella lata (Morgan) species complex (Ephemeroptera:Ephemerellidae) in northeastern North America. Journal of the North American Benthological Society 27: 647-663.
Funk, D.H, J.K. Jackson, and B.W. Sweeney. 2008. A new parthenogenetic mayfly (Ephemeroptera:Ephemerellidae:Eurylophella Tiensuu) oviposits by abdominal bursting in the subimago. Journal of the North American Benthological Society 27:269–279.
Battle, J.M., J. K. Jackson, and B.W. Sweeney. 2007. Mesh size affects macroinvertebrate descriptions in large rivers: examples from the Savannah and Mississippi Rivers. Hydrobiologia 592:329-343.
Battle, J.M., J. K. Jackson, and B.W. Sweeney. 2007. Annual and spatial variation for macroinvertebrates in the Open River section of the Upper Mississippi River. Archiv für Hydrobiology 168:39-54. Request PDF.
Heatherly, T, M. R. Whiles, D. J. Gibson, S. L. Collins, A. D. Huryn, J. K. Jackson, and M. A. Palmer. 2007. Stream insect occupancy-frequency patterns and metapopulation structure. Oecologia 151:313-331.
Funk, D.H. J.K. Jackson, and B.W. Sweeney. 2006. Taxonomy and genetics of the parthenogenetic mayfly Centroptilum triangulifer and its sexual sister Centroptilum alamance (Ephemeroptera: Baetidae) Journal of the North American Benthological Society 25:417-429.
Kaplan, L.A., J.D. Newbold, D.J. Van Horn, C. L. Dow, A.D. Aufdenkampe, and J.K. Jackson. 2006. Organic matter transport in New York City drinking-water-supply watersheds. Journal of the North American Benthological Society 25:912-927. DOI: 10.1899/0887-3593(2006)025[0912:OMTINY]2.0.CO;2 .
Kratzer, E.B., J.K. Jackson, D.B. Arscott, A.K. Aufdenkampe, C.L. Dow, L.A. Kaplan, J.D. Newbold, and B.W. Sweeney. 2006. Macroinvertebrate distribution in relation to land use and water chemistry in New York City drinking-water-supply watersheds. Journal of the North American Benthological Society 25:954-976. Request PDF.
Arscott, D.B., J.K. Jackson, and E.B. Kratzer. 2006. Role of rarity and resolution in a regional and spatial analysis of stream macroinvertebrates. Journal of the North American Benthological Society 25:977-997. Request PDF.
Newbold, J.D., T.L. Bott, L.A. Kaplan, C.L. Dow, J.K. Jackson, A.K. Aufdenkampe, L.A. Martin, D.J. Van Horn, and A.A. de Long. 2006. Uptake of nutrients and organic C in streams in New York City drinking-water-supply watersheds. Journal of the North American Benthological Society 25:998-1017. Request PDF.
Bott, T.L. D.S. Montgomery, J.D. Newbold, D.B. Arscott, C. L. Dow, A.K. Aufdenkampe, J.K. Jackson, and L.A. Kaplan. 2006. Ecosystem Metabolism in streams of the Catskill Mountains (Delaware and Hudson River watersheds) and Lower Hudson Valley. Journal of the North American Benthological Society 25:1018-1044. Request PDF.
Sweeney, B.W., D.B. Arscott, C.L. Dow, J.G. Blaine, A.K. Aufdenkampe, T.L. Bott, J.K. Jackson, L.A. Kaplan, and J.D. Newbold. 2006. Enhanced source-water monitoring for New York City: summary and perspective. Journal of the North American Benthological Society 25:1062-1067. Request PDF.
Jackson, J.K. and L. Füreder. 2006. Long-term studies of aquatic invertebrates: frequency, duration, and ecological significance. Freshwater Biology:51:591-603. Request PDF.
Hodkinson, I.D. and J.K. Jackson. 2005. Terrestrial and aquatic invertebrates as bioindicators for environmental monitoring, with particular reference to mountain ecosystems. Environmental Management 35:649-666. Request PDF.
Jackson, J. K., A. D. Huryn, D. L. Strayer, D. L. Courtemanch, and B. W. Sweeney. 2005. Atlantic coast rivers of the northeastern United States. Pages 21-71 in: A. C. Benke and C. E. Cushing (eds.), Rivers of North America. Academic Press, San Diego, California.
Sweeney, B. W., T. L. Bott, J. K. Jackson, L. A. Kaplan, J. D. Newbold, L. J. Standley, W. C. Hession, R, J. Horwitz. 2004. Riparian deforestation, stream narrowing, and loss of stream ecosystem services. Proceedings of the National Academy of Sciences 101:14132-14137. Request PDF.
Füreder, L., C. Welter, and J.K. Jackson. 2003. Dietary and stable isotope (δ13C, δ15N) analyses in alpine stream insects. International Review of Hydrobiology 88:314-331.
Füreder, L., C. Welter, and J.K. Jackson. 2003. Dietary and stable isotope (δ13C, δ15N) analyses in alpine Ephemeroptera and Plecoptera. Pages 39-46 in: E. Gaino (ed), Research Update on Ephemeroptera and Plecoptera. University of Perugia, Perugia, Italy.
Jackson, J. K., R. J. Horwitz, and B. W. Sweeney. 2002. Replicated field experiments examining the effects of Bti on black flies and nontarget macroinvertebrates and fish in a large river. Transactions of the American Fisheries Society 131:910-930. Request PDF.
Jackson, J. K. 1999. Review of Tropical Asian Streams: zoobenthos, ecology and conservation by D. Dudgeon. Journal of the North American Benthological Society 18:427-428.
Jackson, J. K., E. P. McElravy, V. H. Resh. 1999. Long-term movements of self-marked caddisfly larvae (Trichoptera: Sericostomatidae) in a coastal mountain stream, California, USA. Freshwater Biology 42:525-536. Request PDF.
Jackson, J. K. 1998. Structure and function of stream biota. In: Stream Corridor Restoration: Principles, Processes and Practices, by the Federal Interagency Stream Restoration Working Group. USDA Natural Resources Conservation Service, PB98-158348LUW.
Jackson, J. K. and V. H. Resh. 1998. Morphologically cryptic species confounding ecological studies of the caddisfly genus Gumaga (Sericostomatidae) in northern California. Aquatic Insects 20:(69-84).
Resh, V. H., J. R. Wood, E. A. Bergey, J. W. Feminella, J. K. Jackson, and E. P. McElravy. 1997. Biology of Gumaga nigricula (McL.) in a northern California stream. Pages 401-410 in: Proceedings of the 8th International Symposium on Trichoptera. Ohio Biological Survey.
Sweeney, B. W., J. K. Jackson, and D. H. Funk. 1995. Semivoltinism, seasonal emergence, and adult size variation in a tropical stream mayfly (Euthyplocia hecuba). Journal of the North American Benthological Society 14:131-146. Request PDF.
Jackson, J. K., and B. W. Sweeney. 1995. Egg and larval development times for 35 species of tropical stream insects from Costa Rica. Journal of the North American Benthological Society 14:115-130. Request PDF.
Newbold, J. D., B. W. Sweeney, J. K. Jackson, and L. A. Kaplan. 1995. Concentrations and export of solutes from six mountain streams in northwestern Costa Rica. Journal of the North American Benthological Society 14:21-37. Request PDF.
Jackson, J. K., and B. W. Sweeney. 1995. Present status and future directions of tropical stream research. Journal of the North American Benthological Society 14:5-11. Request PDF.
Jackson, J. K., and B. W. Sweeney. 1995. Tropical stream and river research: Introduction to a series of papers. Journal of the North American Benthological Society 14:2-4. Request PDF.
Jackson, J. K., B. W. Sweeney, T. L. Bott, J. D. Newbold, and L. A. Kaplan. 1994. Transport of B.t.i. and its effect on drift and benthic densities of nontarget macroinvertebrates in the Susquehanna River, northern Pennsylvania. Canadian Journal of Fisheries and Aquatic Sciences 51:295-314.
Resh, V. H. and J. K. Jackson. 1993. Rapid assessment approaches in benthic macroinvertebrate biomonitoring studies. Pages 195-233 in: D. M. Rosenberg and V. H. Resh (eds.), Freshwater biomonitoring and benthic macroinvertebrates. Chapman and Hall, New York.
Jackson, J. K. and V. H. Resh. 1992. Variation in genetic structure among populations of the caddisfly Helicopsyche borealis from three streams in northern California, U.S.A. Freshwater Biology 27:29-42.
Sweeney, B. W., J. K. Jackson, J. D. Newbold, and D. H. Funk. 1992. Climatic change and the life histories and biogeography of aquatic insects in eastern North America. Pages 143-176 in: P. Firth and S. G. Fisher (eds.). Global warming and freshwater ecosystems. Springer-Verlag, New York.
Jackson, J. K. and V. H. Resh. 1991. Periodicity of mate attraction and flight activity of adult caddisflies (Trichoptera). Journal of the North American Benthological Society 10:198-209. Request PDF.
Jackson, J. K. and V. H. Resh. 1991. Use of cellulose acetate electrophoresis to examine the population genetics of the caddisfly Helicopsyche borealis. Internationale Vereinigung fur Theoretische und angewandte Limnologie, Verhandlungen 24:2903-2907.
Resh, V. H., J. K. Jackson, and E. P. McElravy. 1990. Disturbance, annual variability, and lotic benthos: examples from a California stream influenced by a Mediterranean climate. Memorie dell'Istituto Italiano d'Idrobiologia 47:309-329.
Jackson, J. K. and V. H. Resh. 1989. Activities and ecological role of adult aquatic insects in the riparian zone. Pages 342-345 in: D. Abell (ed.). Proceedings of the California Riparian Systems Conference: protection, management, and restoration for the 1990's. General Technical Report PSW-110, Pacific Southwest Forest and Range Experiment Station, Forest Service, U.S. Department of Agriculture, Berkeley, CA.
Jackson, J. K. and V. H. Resh. 1989. Sequential decision plans, benthic macroinvertebrates, and biological monitoring. Environmental Management 13:455-468.
Jackson, J. K. and V. H. Resh. 1989. Distribution and abundance of adult aquatic insects in the forest adjacent to a northern California stream. Environmental Entomology 18:278-283.
Jackson, J. K. and V. H. Resh. 1988. Sequential decision plans in monitoring benthic macroinvertebrates: cost savings, classification accuracy, and development of plans. Canadian Journal of Fisheries and Aquatic Sciences 45:280-286.
Jackson, J. K. 1988. Diel emergence, swarming, and longevity of selected adult aquatic insects of a Sonoran Desert stream. American Midland Naturalist 119:344-352.
Resh, V. H., J. K. Jackson, and E. P. McElravy. 1988. The use of long-term ecological data and sequential decision plans in monitoring the impact of geothermal energy development on benthic macroinvertebrates. Internationale Vereinigung fur Theoretische und angewandte Limnologie, Verhandlungen 23:1142-1146.
Resh, V. H., J. K. Jackson, and J. R. Wood. 1987. Techniques for demonstrating sex pheromones in Trichoptera. Series Entomologica (The Hague) 39:161-164.
Jackson, J. K. and S. G. Fisher. 1986. Secondary production, emergence, and export of aquatic insects of a Sonoran Desert stream. Ecology 67:629-638. Request PDF.
Structure and function of tropical stream ecosystems, responses of tropical stream ecosystems to human activities (with B.W. Sweeney and J.D. Newbold)
Evolutionary and ecological significance of life history traits for temperate and tropical stream insects (with B.W. Sweeney, J.D. Newbold, and D.H. Funk)
Water quality monitoring in the source water areas for New York City: an integrative watershed approach (with C. Dow, T.L. Bott, L.A. Kaplan, J.D. Newbold, L.J. Standley, B.W. Sweeney)
Natural spatial and temporal variability in macroinvertebrate populations: Results from applied research and monitoring studies on the Susquehanna River (PA), Lake Blackshear and Flint River (GA), Savannah River (SC, GA), Mississippi River (MO), White Clay Creek (PA and DE), the Schuylkill River (PA), and the Delaware and Hudson river basins (primarily with B.W. Sweeney)
Schuylkill River Project: Water quality monitoring project, 1996-2007. For a downloadable, printer-ready copy of Understanding Stream Conditions: Lessons from an 11-year Study of Macroinvertebrates in Eastern Pennsylvania’s Schuylkill River Watershed, with a focus on Exceptional-Value and High-Quality Streams, go to: http://www.stroudcenter.org/schuylkill/Schuylkill_Summary.pdf
Completed Student Research Projects
William B. Crouch. 1995. Macroinvertebrate assemblages in forest and meadow streams. Senior Project in Entomology and Applied Ecology, University of Delaware.
R. Will Bouchard. 1997. Senior Project in Biology, Franklin and Marshall University.
T. Kevin O'Donnell. 1999. Use of benthic macroinvertebrates to determine water quality of tributaries contributing to the Schuylkill River. Senior Project in Biology, West Chester University.
Heidi Fenstermacher. 2002. The Effects of nonindigenous Normay maple (Acer platanoides) on an aquatic insect community. M.S. Thesis, Entomology and Applied Ecology, University of Delaware.
Danielle DiFederico. 2007. Macroinvertebrate responses to suburbanization in Plum Creek. M.S. Thesis, Biology, West Chester University.
Undergraduate Intern Program
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Ecological Society of America
American Entomological Society
North American Benthological Society
Sigma Xi, The Scientific Research Society