Ph. D. University of Minnesota
B.S. Slippery Rock University, PA
Areas of Interest
Aquatic ecology, invasive species, and fisheries management.
FW 4107 Principles of Fisheries Science and Management
FW 5459 Stream and River Ecology
CFAN 3502 Sustainable Akumal
ESPM 3015/5015 Invasive Plants and Animals: Ecology and Management
My research interests are in applied and basic aquatic ecology with an emphasis on trophic relations, littoral zones, and invasive species. I have a wide range of research interests in fisheries ecology and believe a mix of descriptive and manipulative research is essential. Much of my work is interdisciplinary and has involved collaboration with other researchers.
I am interested in basic and applied aspects of herbivory on freshwater macrophytes by invertebrates. This work includes applied research on potential biological control agents of nuisance weeds such as Eurasian watermilfoil and more basic research on the role of deterrents and attractants in the use of macrophytes by aquatic invertebrates. More recently we have been examining the ecology of invasive aquatic plants such as Eurasian watermilfoil and curlyleaf pondweed. This includes work on effects of large scale treatments to control invasive plants, models to predict invasion and the ecology of propagules such as seeds and turions.
We are particularly interested in approaches to enhance native macrophytes after carp and invasive plant control. Our most recent work is investigating the distribution of hybrid watermilfoil in Minnesota, factors that favor hybrids and identifying hybrid genotypes that may be more invasive or resistant to management.
I still maintain an interest in stream ecology, but currently have no active projects.
Gannon, K. A., R.M. Newman and R.A. Thum. 2022. Integrating DNA fingerprinting of invasive watermilfoil strains into aquatic vegetation monitoring and assessment. Journal of Aquatic Plant Management 60(1):1-9. https://apms.org/wp-content/uploads/japm-60-01-1-full.pdf
Eltawely, J.A., R.M. Newman and R.A. Thum. 2020. Factors influencing the distribution of invasive hybrid (Myriophyllyum spicatum × M. sibiricum) watermilfoil and parental taxa in Minnesota. Diversity 12(3): 120; doi:10.3390/d12030120.
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
Dunne, M.A. and R. M. Newman. 2019. The response of aquatic macrophyte propagules to light quantity and comparison of lake seed banks to existing macrophyte community. Journal of Aquatic Plant Management 57:90-98. http://www.apms.org/wp/wp-content/uploads/japm-57-02-90-1.pdf (Outstanding JAPM Article from 2019)
Knopik, J. M and R. M. Newman. 2018. Transplanting aquatic macrophytes to restore the littoral community of a eutrophic lake after the removal of common carp. Lake and Reservoir Management 34(4): 365–375. https://doi.org/10.1080/10402381.2018.1477885