Katrina Dlugosch

Associate Professor

Positions and Education: 

  • Assistant Professor, Ecology and Evolutionary Biology, University of Arizona, 2011- present
  • Postdoctoral Fellow, Botany, University of British Columbia, 2007- 2010
  • PhD, Ecology and Evolutionary Biology, University of California Santa Cruz, 2006
  • BS, Botany, University of Washington, 1998
  • BS, Ecology, Evolution, and Conservation Biology, University of Washington, 1998

Honors and Awards: 

  • Keynote Speaker, Plant Genome Evolution, Sitges, Spain, 2017
  • Graduate Invited Speaker, University of Wisconsin, Madison, 2017
  • Menzel Award, Best Paper in Genetics, Botany, 2006
  • Speaking Award, CA Botanical Society, 2005
  • Speaking Award, CA Botanical Society, 2003
  • National Science Foundation Graduate Research Fellowship, 1998
  • Phi Beta Kappa Honors Society, 1998

Editorial Work: 

Barrett SCH, Colautti RI, Dlugosch KM, Rieseberg LH, Eds. (2017) Invasion Genetics: The Baker and Stebbins Legacy. Wiley Publishers.

Research Interests: 

Dlugosch is an evolutionary ecologist who studies the genetic and evolutionary consequences of colonization events. Her work draws largely on the natural experiments provided by human-mediated species introductions and seeks to understand how the genetic variation in these populations translates into phenotypic diversity, adaptation, and changes in ecology. To do this she employs a variety of genetic approaches (quantitative, molecular, and genomic/bioinformatic) as well as field experiments. Research in her lab includes studies of 1) the genetic basis of evolution in invasive plants (in traits governing changes in life history, trade-offs between growth and defense, and microbial interactions), 2) the contribution of multiple introductions and genomic admixture to population establishment and expansion, and 3) the role of local adaptation in generating population stability during range expansion and in response to climate change.

Selected Publications: 

  1. Dlugosch KM, Anderson SR, Braasch J, Cang FA, Gillette HD (2015) The devil is in the details: genetic variation in introduced populations and its contributions to invasion. Molecular Ecology 24: 2095-2111.
  2. Dlugosch KM, Cang FA, Barker BS, Andonian K, Swope SM, Rieseberg LH (2015) Evolution of invasiveness through increased resource use in a vacant niche. Nature Plants 1: 15066.
  3. Stewart CN Jr., Tranel PJ, Horvath D, Anderson J, Dlugosch KM, Rieseberg LH, Westwood J, Mallory-Smith C (2009) Evolution of weediness and invasiveness: charting the course for weed genomics. Weed Science 57: 451-462.
  4. Dlugosch KM, Parker IM (2008) Invading populations of an ornamental shrub show rapid life history evolution despite genetic bottlenecks. Ecology Letters 11(7): 701-709.
  5. Dlugosch KM, Parker IM (2008) Founding events in species invasions: genetic variation, adaptive evolution, and the role of multiple introductions. Molecular Ecology 17 (1): 431-449.