Ray Newman, Professor

Education

Ph. D. University of Minnesota
B.S. Slippery Rock University

AIS Area of Interest

Dr. Newman is passionate about aquatic ecology and understanding the interaction between plants, invertebrates, and fish. His work with MAISRC involves restoring native plant communities after invasive plants have been introduced. Currently, two of the biggest invasive plant threats are Eurasian watermilfoil and curly-leaf pondweed. Dr. Newman is evaluating sustainable methods of bio control involving weevils (and other insects) as well as the more traditional application of herbicides.

AIS Species of Study

Current MAISRC projects

Completed projects

Select AIS publications

Verhoeven, Michael R.; Glisson, Wesley J.; Larkin, Daniel J. (2020). Niche Models Differentiate Potential Impats of Two Aquatic Invasive Plant Species on Native Macrophytes. Diversity 2020, 12, 162; doi:10.3390/d12040162

Eltawely, J.A.; Newman, R.M.; Thum, R. A. (2020). Factors Influencing the Distribution of Invasive Hybrid (Myriophyllum Spicatum x M. Sibiricum) Watermilfoil and Parental Taxa in Minnesota. Diversity, 12(3), 120; doi:10.3390/d12030120
Knopik, J. M., & Newman, R. M. (2018). Transplanting aquatic macrophytes to restore the littoral community of a eutrophic lake after the removal of common carp. Lake and Reservoir Management, (In press). doi:10.1080/10402381.2018.1477885

Dunne, M., & Newman, R. (2019). Effect of light on macrophyte sprouting and assessment of viable seedbank to predict community composition. Journal of Aquatic Plant Management, 57, 90–98.
Johnson, J. A., Jones, A. R., & Newman, R. M. (2012). Evaluation of lakewide, early season herbicide treatments for controlling invasive curlyleaf pondweed (Potamogeton crispus) in Minnesota lakes. Lake and Reservoir Management, 28(4), 346–363. doi:10.1080/07438141.2012.744782

Jones, A. R., Johnson, J. A., & Newman, R. M. (2012). Effects of repeated, early season, herbicide treatments of curlyleaf pondweed on native macrophyte assemblages in Minnesota lakes. Lake and Reservoir Management, 28(4), 364–374. doi:10.1080/07438141.2012.74757
Newman, R. M., & Inglis, A. W. G. (2009). Distribution and Abundance of the Milfoil Weevil, Euhrychiopsis lecontei, in Lake Minnetonka and Relation to Milfoil Harvesting. Journal of Aquatic Plant Management , 47(1), 21–25.
Ward, D. M., & Newman, R. M. (2006). Fish predation on Eurasian watermilfoil (Myriophyllum spicatum) herbivores and indirect effects on macrophytes. Canadian Journal of Fisheries and Aquatic Sciences, 63(5), 1049–1057. doi:10.1139/F06-010
Newman, R. M., Holmberg, K. L., Biesboer, D. D., & Penner, B. G. (1996). Effects of a potential biocontrol agent, Euhrychiopsis lecontei, on Eurasian watermilfoil in experimental tanks. Aquatic Botany, 53(3-4), 131–150. doi:10.1016/0304-3770(95)01005-X
Roley, S. S., & Newman, R. M. (2008). Predicting Eurasian watermilfoil invasions in Minnesota. Lake and Reservoir Management, 24(4), 361–369. doi:10.1080/07438140809354846

Cuda, J. P., Charudattan, R., Grodowitz, M. J., Newman, R. M., Shearer, J. F., Tamayo, M. L., & Villegas, B. (2008). Recent Advances in Biological Control of Submersed Aquatic Weeds. Journal of Aquatic Plant Management, 46(1), 15–32.
Newman, R. M., Gross, E. M., Wimmer, W., & Sprick, P. (2006). Life History and Developmental Performance of the Eurasian Milfoil Weevil, Eubrychius velutus (Coleoptera: Curculionidae). The Coleopterists Bulletin, 60(2), 170–176. doi:10.1649/871.1
Solarz, S. L., & Newman, R. M. (2001). Variation in hostplant preference and performance by the milfoil weevil, Euhrychiopsis lecontei Dietz, exposed to native and exotic watermilfoils. Oecologia, 126(1), 66–75. doi:10.1007/s004420000484
Kristine, M. C., Newman, R. M., Loos, A., & Ragsdale, D. W. (1999). Developmental Rates of the Native Milfoil Weevil, Euhrychiopsis lecontei, and Damage to Eurasian Watermilfoil at Constant Temperatures. Biological Control, 16(2), 139–143. doi:10.1006/bcon.1999.0739