I am an evolutionary biologist with a focus on plant breeding system evolution.
Plants exhibit a wide range of breeding systems across families, species and populations.
I am interested in how processes within and among populations interact to maintain
breeding system polymorphisms. For this research, I use formal and informal models, field
studies, genetic markers, and greenhouse experiments.

Gynodioecy theory

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Recent advances in the study of gynodioecy: the interface of theory and empiricism (with David E. McCauley), Annals of Botany (2009)
 

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A field guide to models of sex-ratio evolution in gynodioecious species (with Lynda F. Delph), Oikos (2007)
 

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Merging theory and mechanism in studies of gynodioecy (with Lynda F. Delph and Pascal Touzet), Trends in Ecology and Evolution (2007)
 

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Sex-Ratio Evolution in Nuclear-Cytoplasmic Gynodioecy When Restoration Is a Threshold Trait (with Lynda F. Delph), Genetics (2007)
 

Gynodioecy research

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Pollen viability across a landscape: geographic variation in the cost of male-fertility restoration in gynodioecious Lobelia siphilitica (with Andrea Case and Christina Caruso), The 24th Annual Conference of the Plant Population Biology Section of the Ecological Society of Germany, Switzerland and Austria (GfÖ) (2011)
 

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Inheritance of chloroplast DNA is not strictly maternal in Silene vulgaris (Caryophyllaceae): evidence from experimental crosses and natural populations (with David E. McCauley, Allyson K. Sundby, and Mark E. Welch), American Journal of Botany (2007)
 

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Evidence for paternal transmission and heteroplasmy in the mitochondrial genome of Silene vulgaris, a gynodioecious plant (with David E. McCauley, Natasha A. Sherman, and M. Z. Darnell), Heredity (2005)
 

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Seed provisioning in gynodioecious Silene acaulis (Caryophyllaceae) (with Lynda F. Delph and Deborah Marr), American Journal of Botany (1999)
 

Genetic architecture of weedy plant populations

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Sex and the Single Weed: connecting floral and genetic diversity in Purple Loosestrife, Lythrum salicaria, 3rd annual Biology New England South (BioNES) (2008)