|2011 - Present||Assistant Professor, Nova Southeastern University ‐ Halmos College of Natural Sciences and Oceanography, Department of Biological Sciences|
|2008||Ph.D. Biology, University of New Brunswick, Saint John|
|2004||Diploma in University Teaching, University of New Brunswick ‐ Centre for Enhanced Teaching and Learning|
|2001||M.Sc. Natural Resource Sciences, McGill University|
|1997||B.Sc. Biology, Specialization in Ecology, Concordia University, Montreal, Quebec, Canada|
A Potential Tradeoff Between Feeding Rate and Aversive Learning Determines Intoxication in a Caenorhabditis elegans Host-Pathogen System Microbes and Infection (2020)
Despite being the first line of defense against infection, little is known about how host-pathogen interactions determine avoidance. Caenorhabditis elegans can become infected by chemoattractant-producing bacteria through ingestion. The worms can learn to associate these ...
New Host Records and Range Extensions for Helminth Parasites from Wading Birds in Southeastern Florida Florida Field Naturalist (2019)
Six species of wading birds collected from wildlife centers throughout South Florida were dissected for parasites. Twenty-six species of parasites represent new host records and five parasite species represent new geographic range extensions.
Validity of the Diplostomoidea and Diplostomida (Digenea, Platyhelminthes) Upheld in Phylogenomic Analysis International Journal of Parasitology (2018)
Higher systematics within the Digenea, Carus 1863 have been relatively stable since a phylogenetic analysis of partial nuclear ribosomal markers (rDNA) led to the erection of the Diplostomida Olson, Cribb, Tkach, Bray, and Littlewood, 2003. ...
Host Abundance, Seagrass Cover, and Temperature Predict Infection Rates of Parasitic Isopods (Bopyridae) on Caridean Shrimp. Journal of Parasitology (2017)
Caridean shrimp are critical components of seagrass communities and occasionally harbor parasitic bopyrid isopods, which can negatively impact their hosts. However, the ecological factors that drive infection rates of parasitic bopyrid isopods in host carideans ...
Parasite Community Similarity in Athabasca River Trout-Perch (Percopsis omiscomaycus) Varies with Local-Scale Land Use and Sediment Hydrocarbons, but Not Distance or Linear Gradients Parasitology Research (2016)
Parasite communities have been shown to be structured by processes at scales ranging from continental to microhabitat, but few studies have simultaneously considered spatial and environmental variables, measured at different scales, to assess their relative ...
Circumvention of Learning Increases Intoxication Efficacy of Nematicidal Engineered Bacteria ACS Synthetic Biology (2015)
Synthetic biology holds promise to engineer systems to treat diseases. One critical, yet underexplored, facet of designing such systems is the interplay between the system and the pathogen. Understanding this interplay may be critical to ...
Trematode prevalence-occupancy relationships on regional and continental spatial scales in marine gastropod hosts Marine Ecology Progress Series (2013)
The positive inter-specific relationship between local abundance and large-scale spatial occupancy is one of the most universal patterns in the distribution of species. However, evidence for the validity of this relationship in the marine realm ...
Scaling up from epidemiology to biogeography: local infection patterns predict geographical distribution in fish parasites Journal of Biogeography (2012)
Aim We investigated how the spatial distribution of parasites, measured as either their geographical range size or their frequency of occurrence among localities, relates to either their average local abundance or the variance in their ...
Natural and anthropogenic factors shape metazoan parasite community structure and composition in mummichog (Fundulus heteroclitus) from two estuaries in New Brunswick, Canada Folia Parasitologica (2011)
Previously published multidisciplinary studies in the Miramichi and Bouctouche rivers (New Brunswick, Canada) noted significant changes in fish health parameters, including elevated tissue levels of organic contaminants and a wide range of physiological disturbances, in ...
The biogeography of parasitism in sticklebacks: distance, habitat differences and the similarity in parasite occurrence and abundance Ecography (2011)
Similarity in parasite community composition often decreases with both increasing geographic distance and environmental dissimilarity between localities, though it is unknown whether similarity in local abundance of selected parasite species follows similar rules. We tested ...
Exposure to a mixture of zinc and copper decreases survival and fecundity of Discocotyle sagittata (Leuckart) parasitizing juvenile Atlantic salmon, Salmo salar L Bulletin of Environmental Contamination and Toxicology (2010)
We assessed the effects of zinc and copper on freshwater monogenean ectoparasites (Discocotyle sagittata Leuckart) infecting juvenile Atlantic salmon (Salmo salar L.). Exposure to 47 microg/L zinc and 3 microg/L copper reduced survival and fecundity ...
Pollution and parasitism in aquatic animals: a meta-analysis of effect size Aquatic Toxicology (2009)
Numerous studies have indicated that aquatic pollution affects parasite populations and communities. However, the responses of individual taxa and functional groups to specific contaminants, and their effect sizes, have yet to be assessed quantitatively. We ...
Growth, nutritional quality and hematology of Arctic charr (Salvelinus alpinus) exposed to toxaphene and tapeworm (Diphyllobothrium dendriticum) larvae Archives of Environmental Contamination and Toxicology (2005)
Toxaphene, an organochlorine pesticide, is the major contaminant of Arctic charr (Salvelinus alpinus) in the Canadian Arctic. The objective of this study was to investigate the combined effects of toxaphene exposure and infection by the ...
Ectosymbiotic microbiomes of parasitic nematodes (Ozolaimus megatyphon) and their iguana hosts HCNSO Ocean Science Research Symposium (2020)
Florida iguanas (Iguana iguana, Ctenosaura similis) are heavily infected with Ozolaimus megatyphon, a parasitic nematode worm. Prior work in our lab noted an apparent microbial community associated with the worm cuticle. Observations of parasite microbiomes ...
Ecological Insights for Freshwater Birds from Endoparasite Community Analysis Biology Faculty Proceedings, Presentations, Speeches, Lectures (2019)
Birds are often considered some of the top organisms in freshwater food webs, but their specific ecological niches have remained relatively unstudied. Upper-level predators are often more susceptible to mortality from parasitism than direct predation. ...
Playing Through the Parasite: Is Toxoplasma gondii Affecting Your Athletic Performance? Biology Faculty Proceedings, Presentations, Speeches, Lectures (2019)
Toxoplasma gondii is the most prevalent parasite of humans, infecting 30% to 50% of the world population. In the USA, the prevalence of toxoplasmosis is 11%, with more than 40 million people infected. While house ...
Effect Sizes, Affect Words, and the Value of Parasites as Bioindicators Biology Faculty Proceedings, Presentations, Speeches, Lectures (2019)
Studies have shown that while we almost always associate terms such as never or always with probabilities of 0 and 100% respectively, we vary considerably in our interpretations of terms such as unlikely or likely. ...