Background Image

News & Events

09-19-2017

Clarkson University's Rana Parshad Receives National Science Foundation Award for Invasive Species Modeling Research

Clarkson University Assistant Professor of Mathematics Rana Parshad has received a three-year grant totaling approximately $420,000 from the National Science Foundation for his research on mathematical modeling for controlling invasive aquatic species. The award is from the NSF’s Division of Mathematical Sciences, Mathematical Biology Program.

Clarkson University Assistant Professor of Mathematics Rana Parshad has received a three-year grant totaling approximately $420,000 from the National Science Foundation for his research on mathematical modeling for controlling invasive aquatic species. The award is from the NSF’s Division of Mathematical Sciences, Mathematical Biology Program.The project, “Collaborative Research: A Novel Control for Invasive Species – Modeling, Analysis, and Experiments,” will explore the Trojan Y-Chromosome (TYC) strategy, which hypothesizes that the introduction of a genetically-modified sub-population into an invasive population will eradicate the target invasive species over time, while protecting native species.

When an invasive species is introduced into a new habitat, it can cause large scale damage by preying on native species or competing for the same resources.

“The spread of invasive species is a major problem in spatial ecology, and there is a large body of literature on understanding this spread. However, there is far less work on the actual eradication and control of invasive species once invasion has occurred,” says Parshad.

The TYC strategy is a biological control that introduces a sub-population of genetically modified males with YY chromosomes (as opposed to the normal XY chromosomes) in order to guarantee future offspring will be male. In theory, over time the population will be male skewed, driving down the female population and ultimately leading to the extinction of the invasive species in that particular area.

Parshad and his co-PI, Associate Professor Matthew Beauregard at Stephen F. Austin State University in Texas, are developing an experimentally tested mathematical model of the TYC strategy. The computational and theoretical analysis of the model will inform experimental biologists about the viability of the TYC strategy and other phenomena associated with such controlled effects.

For example, cannibalism within the species. “In many cases, the genetically modified males are typically smaller than a normal male, and in populations where cannibalism occurs, size wins,” explains Parshad. “If the XY males are cannibalizing the genetically modified YY males, the viability of the TYC strategy, can be questioned.”

“There are also several theoretical challenges”, says Parshad. “Once we include directed movements into the picture, that is say movements towards prey or mates, global existence of solutions is only known under certain parametric restrictions”.

Results of the project will guide experimental research at the USGS Wetland and Aquatic Research Center in Gainsville, Fla., to combat aquatic invasive species and rejuvenate damaged ecosystems.

Parshad has been a faculty member at Clarkson since 2013 and has been the author of numerous scholarly papers that his new research project builds upon, involving mathematical modeling for population ecology issues such as predator-prey relationships, tri-trophic food chains, cannibalism, invasive species spread and control, and the TYC model.

Clarkson University educates the leaders of the global economy. One in five alumni already leads as an owner, CEO, VP or equivalent senior executive of a company. With its main campus located in Potsdam, N.Y., and additional graduate program and research facilities in the Capital Region and Beacon, New York, Clarkson is a nationally recognized research university with signature areas of academic excellence and research directed toward the world's pressing issues. Through more than 50 rigorous programs of study in engineering, business, arts, education, sciences and the health professions, the entire learning-living community spans boundaries across disciplines, nations and cultures to build powers of observation, challenge the status quo, and connect discovery and innovation with enterprise.

[A photograph for media use is available at http://internal.clarkson.edu/news/photos/rparshad-nsf.jpg.]

[News directors and editors: For more information, contact Kelly Chezum, VP for External Relations, at 315-268-4483 or kchezum@clarkson.edu.]

Calendar View the full calendar >>






Full Calendar RSS Feed