I'm an evolutionary biologist and teach courses reflecting both my interests and training.
Bio 111 - Introduction to Ecology and Evolution
Bio 113/114 - Introduction to Phage Biology/Phage Bioinformatics
Bio 314 - Evolution
Bio 361 Evolutionary Medicine
Bio/ES 316 - Conservation Biology
Bio 204 - Biology of Flowering Plants
My research is in the field of evolutionary ecology. Most of my past research has focused on the ecology and evolution of reproductive strategies in flowering plants. There are over 250,000 described species of flowering plants and much of this diversity involves variation in reproductive strategies. I'm particularly interested in:
1) Understanding what factors determine the allocation of resources to male function (pollen number and size, nectar and petals that attract pollinators and thus lead to the dispersal of pollen to other flowers) as opposed to female function (ovule number, seed number and size).
2) Understanding how breeding systems (inbreeding versus outcrossing) and plant-pollinator interactions affect gender allocation patterns.
Recently, in collaboration with Dr. Greg Krukonis, we have started a project exploring the ecology and evolution of phages and their bacterial hosts. We have isolated novel bacteriophages of Bacillus subtilis and are in the process of sequencing and assembling their genomes. These phages differ in their host ranges and we are exploring the genetic factors that determine host range. In the long term, we are planning experiments that will look at how genome changes as phages adapt to new hosts.
Areas of interests
Coevolution of phage and bacterial hosts
Genome organization in bacteriophage
Ecology and evolution of sexual/mating systems in plants
Sex allocation theory
Phone: (717) 337 - 6153
Box: Campus Box 0392
McCreary Hall 206A
300 North Washington St.
Gettysburg, PA 17325-1400
BS Mc Gill University, Montreal, 1978
MS Mc Gill University, Montreal, 1982
PhD University of Arizona, 1987
Evolutionary Ecology, Plant Mating Systems, Sex Allocation,