Ray Newman

Professor
he/him
[email protected]
Lab website
Education
  • B.S. Slippery Rock University
  • Ph. D. University of Minnesota

Areas of Interest

Eurasian and hybrid watermilfoil

Curlyleaf pondweed

Starry stonewort

Biography

Dr. Ray Newman is a Distinguished Teaching Professor in the Department of Fisheries, Wildlife and Conservation Biology at the University of Minnesota specializing in aquatic invasive plants. He is passionate about aquatic ecology and understanding the interaction between plants, invertebrates, and fish. His work with the Minnesota Aquatic Invasive Species Research Center includes restoring native plant communities after invasive plants – such as Eurasian watermilfoil and Curly-leaf pondweed – have been introduced and assessing the distribution of hybrid watermilfoil and management implications of different genotypes. He was previously researching sustainable methods of biocontrol involving weevils and integrated approaches to milfoil management.

Research

Select Publications

  • Verhoeven, M. R., D. J. Larkin, and R. M. Newman. 2020.  Constraining invader dominance: effects of repeated herbicidal management and environmental factors on curlyleaf pondweed dynamics in 50 Minnesota lakes. Freshwater Biology 65:849-862. DOI:10.1111/fwb.13468
  • Thum, R. A., G. M. Chorak, R. M. Newman, J. A. Eltawely, J. Latimore, E. Elgin, and S. Parks. 2020. Genetic diversity and differentiation in populations of invasive Eurasian (Myriophyllum spicatum) and hybrid (Myriophyllum spicatum × Myriophyllum sibiricum) watermilfoil. Invasive Plant Science and Management 13(2): 59-67. doi:10.1017/inp.2020.12 
  • Factors Influencing the Distribution of Invasive Hybrid (Myriophyllum Spicatum x M. Sibiricum) Watermilfoil and Parental Taxa in Minnesota. Diversity, 2020
  • Transplanting aquatic macrophytes to restore the littoral community of a eutrophic lake after the removal of common carp. Lake and Reservoir Management, 2018
  • Effect of light on macrophyte sprouting and assessment of viable seedbank to predict community composition. Journal of Aquatic Plant Management, 2019
  • Evaluation of lakewide, early season herbicide treatments for controlling invasive curlyleaf pondweed (Potamogeton crispus) in Minnesota lakes. Lake and Reservoir Management, 2012
  • Fish predation on Eurasian watermilfoil (Myriophyllum spicatum) herbivores and indirect effects on macrophytes. Canadian Journal of Fisheries and Aquatic Sciences, 2006
  • Effects of a potential biocontrol agent, Euhrychiopsis lecontei, on Eurasian watermilfoil in experimental tanks. Aquatic Botany, 1996
  • Predicting Eurasian watermilfoil invasions in Minnesota. Lake and Reservoir Management, 2008
  • Recent Advances in Biological Control  of Submersed Aquatic Weeds. Journal of Aquatic Plant Management, 2008
  • Life History and Developmental Performance of the Eurasian Milfoil Weevil, Eubrychius velutus (Coleoptera: Curculionidae). The Coleopterists Bulletin, 2006
  • Variation in hostplant preference and performance by the milfoil weevil, Euhrychiopsis lecontei Dietz, exposed to native and exotic watermilfoils. Oecologia, 2001
  • Developmental Rates of the Native Milfoil Weevil, Euhrychiopsis lecontei, and Damage to Eurasian Watermilfoil at Constant Temperatures. Biological Control, 1999