We are interested in documenting hybridization and introgression in fishes and understanding the fate of hybrids (formation of hybrid swarms versus bimodal hybrid zones) and the processes that determine the extent of hybridization (historical factors, waterscapes, environmental features, life history features) and the structure of hybrid zones (roles of pre-mating and post-mating processes).
Dr. Armando Geraldes and I work together on understanding historical and contemporary hybridization in Dolly Varden and Arctic char using genomic approaches (principally genotyping-by-sequencing, GBS).
Shuang Liu (PhD, 2023, co-supervised with J. Richards) completed integrated physiological and genomic studiies on adaptive radiation in the prickly sculpin (Cottus asper) and, in particular, divergence in ion regulation performance and mechanisms during colonization of fresh water.
Matt Siegle (PhD, 2017, co-supervised with M. O'Connor) examined the role of thermal history on tolerance to heat waves in an intertidal copepod (Tigriopus californicus).
Jon Mee (PhD, 2011) completed a PhD that investigated historical, physiological, and ecological factors 
that may explain the origin and persistence of asexual lineages within the genus Chrosomus. He is now a faculty member at Mount Royal University in Calgary. Click HERE.
Amy Liu (MSc, 2022) completed a genomic analysis of hybridization in co-existing lineages of Northern and Southern Dolly Varden.
Shannan May-McNally (MSc, 2014) worked 
on hybridization between Arctic char (Salvelinus alpinus) and Dolly Varden (S. malma) that occur sympatrically in lake and stream systems in western Alaska (photo courtesy of Alaska fish and Game).
Jennifer Ruskey (MSc, 2014) examined morphological and genetic structure of sympatric populations of Nooksack and longnose dace (Rhinichthys) to test whether or not the two dace represent distinct biological species.
Monica Yau completed an MSc (2013) that examined patterns of hybridization 
between native westslope cutthroat trout
(Oncorhynchus clarkii lewisi) and introduced rainbow trout (O. mykiss) and if differences in tolerance to low water temperature influence the extent and geographic distribution of hybridization.