selected scholarly activity
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journal articles
- Effects of dietary antioxidants and environmental stressors on immune function and condition in Lithobates (Rana) sylvaticus. Comparative biochemistry and physiology. Part A, Molecular & integrative physiology. 229:25-32. 2019
- Dietary antioxidants enhance immunocompetence in larval amphibians. Comparative biochemistry and physiology. Part A, Molecular & integrative physiology. 201:182-188. 2016
- An overview of mercury concentrations in freshwater fish species: a national fish mercury dataset for Canada. Canadian Journal of Fisheries and Aquatic Sciences. 70:436-451. 2013
- Larval Ischnura verticalis (Odonata: Coenagrionidae) Respond to Visual Cues of Predator Presence. Journal of Insect Behavior. 25:143-154. 2012
- Effects of encounters with fish on activity of sedentary benthic invertebrates. Ecoscience. 17:420-427. 2010
- Larval amphibian growth and development under varying density: are parasitized individuals poor competitors?. Oecologia. 155:641-649. 2008
- Do Larval Damselflies make Adaptive Choices When Exposed to Both Parasites and Predators?. Ethology. 113:1073-1080. 2007
- Contaminant effects on host‐parasite interactions: atrazine, frogs, and trematodes. Environmental Toxicology and Chemistry. 26:2166-2170. 2007
- ENVIRONMENTAL FACTORS INFLUENCING COMMUNITY COMPOSITION OF GASTROPODS AND THEIR TREMATODE PARASITES IN SOUTHERN ONTARIO. Journal of Parasitology. 93:992-998. 2007
- Technique and observer presence affect reporting of behavior of damselfly larvae. Journal of the North American Benthological Society. 26:145-151. 2007
- Technique and observer presence affect reporting of behavior of damselfly larvae. Journal of the North American Benthological Society. 26:145-151. 2007
- On the efficacy of anti-parasite behaviour: a case study of tadpole susceptibility to cercariae of Echinostoma trivolvis. Canadian Journal of Zoology. 84:1623-1629. 2006
- ENVIRONMENTAL FACTORS INFLUENCING TREMATODE PREVALENCE IN GREY TREE FROG (HYLA VERSICOLOR) TADPOLES IN SOUTHERN ONTARIO. Journal of Parasitology. 92:997-1001. 2006
- EFFECTS OF ATRAZINE ON CERCARIAL LONGEVITY, ACTIVITY, AND INFECTIVITY. Journal of Parasitology. 92:306-311. 2006
- Detection and Avoidance of Fish Predators by Adult Enallagma Damselflies. Journal of Insect Behavior. 19:77-91. 2006
- Diet of nymphs affects normal wing development in Ischnura verticalis (Odonata: Coenagrionidae). Canadian Entomologist. 136:749-751. 2004
- Sex differences in melanotic encapsulation responses (immunocompetence) in the damselfly Lestes forcipatus Rambur. Canadian Journal of Zoology. 80:1578-1583. 2002
- Nutritional stress and behavioural immunity of damselflies. Animal Behaviour. 61:1093-1099. 2001
- Lack of preference for low-predation-risk habitats in larval damselflies explained by costs of intraspecific interactions. Animal Behaviour. 60:511-521. 2000
- Research note Grooming decisions by damselflies, age-specific colonisation by water mites, and the probability of successful parasitism. International Journal for Parasitology. 29:397-402. 1999
- Aggressive interactions and risk of fish predation for larval damselflies. Journal of Insect Behavior. 12:213-223. 1999
- Effects of a mite, <i>Limnochares americana</i> (Hydrachnida: Limnocharidae), on the life-history traits and grooming behaviour of its damselfly host, <i>Enallagma ebrium</i> (Odonata: Coenagrionidae). Canadian Journal of Zoology. 77:1615-1622. 1999
- Effect of Body Size and Feeding on Fecundity in the Damselfly Ischnura verticalis (Odonata: Coenagrionidae). Oikos. 79:477-477. 1997
- Conflict between antipredator and antiparasite behaviour in larval damselflies. Oecologia. 109:622-628. 1997
- Predator‐‐Induced Life History Changes: Antipredator Behavior Costs or Facultative Life History Shifts?. Ecology. 77:1116-1124. 1996
- Function of abdomen wave behavior in larvalischnura verticalis (Odonata: Coenagrionidae). Journal of Insect Behavior. 9:183-195. 1996
- Mating behaviour and spermatophore morphology: a comparative test of the female-choice hypothesis. Canadian Journal of Zoology. 73:2010-2020. 1995
- Microhabitat selection by larval Chironomus tentans (Diptera: Chironomidae): effects of predators, food, cover and light. Freshwater Biology. 34:101-106. 1995
- The non‐lethal effects of predators and the influence of food availability on life history of adultChironomus tentans(Diptera: Chironomidae). Freshwater Biology. 34:1-12. 1995
- Frequency of female morphs is related to an index of male density in the damselfly,Nehalennia irene(Hagen). Ecoscience. 2:28-33. 1995
- Effects of predators and food availability on activity and growth of Chironomus tentans (Chironomidae: Diptera). Freshwater Biology. 28:207-216. 1992
- Causes of a non-random pairing by size in the brine shrimp, Artemia salina: (Crustacea: Anostraca). Oecologia. 91:214-219. 1992
- Sexual differences in development and behaviour of larval Ischnura verticalis (Odonata: Coenagrionidae). Canadian Journal of Zoology. 70:1161-1165. 1992
- Prey behaviour and size‐selective predation by fish. Freshwater Biology. 25:533-538. 1991
- Condition and fecundity of the damselfly, Enallagma ebrium (Hagen): the importance of ectoparasites. Oecologia. 86:335-341. 1991
- Susceptibility to Parasitism: Experiments with the Damselfly Enallagma ebrium (Odonata: Coenagrionidae) and Larval Water Mites, Arrenurus spp. (Acari: Arrenuridae). Oikos. 58:61-61. 1990
- Use of Artificial Substrates to Estimate Prey Resources available to a Visually Feeding Benthivorous Fish. Canadian Journal of Fisheries and Aquatic Sciences. 47:789-793. 1990
- Colour change and substrate selection in larval Ischnura verticalis (Coenagrionidae: Odonata). Canadian Journal of Zoology. 68:221-224. 1990
- Depth selection by larval Ischnura verticalis (Odonata: Coenagrionidae): effects of temperature and food. Freshwater Biology. 22:169-175. 1989
- Condition and size of damselflies: a field study of food limitation. Oecologia. 81:111-119. 1989
- Effects of size on predation risk, behavioural response to fish, and cost of reduced feeding in larval Ischnura verticalis (Coenagrionidae: Odonata). Oecologia. 76:200-205. 1988
- Phenotypic and genetic variability of estimated growth curve parameters in mice. Theoretical and Applied Genetics. 76:148-156. 1988
- Effects of previous diet and frequency of feeding on development of larval damselflies. Freshwater Biology. 19:191-195. 1988
- Development of Ischnura verticalis (Coenagrionidae: Odonata): Effects of Temperature and Prey Abundance. Canadian Journal of Fisheries and Aquatic Sciences. 44:1658-1661. 1987
- Effects of fish on feeding and growth of larval Ischnura verticalis (Coenagrionidae: Odonata). Canadian Journal of Zoology. 65:2276-2279. 1987
- Food Limitation of Larval Dragonflies: A Field Test of Spacing Behaviour. Canadian Journal of Fisheries and Aquatic Sciences. 43:1720-1725. 1986
- Distribution of the Stonefly Nymph Paragnetina media (Plecoptera:Perlidae): Influence of Prey, Predators, Current Speed, and Substrate Composition. Canadian Journal of Fisheries and Aquatic Sciences. 43:1582-1587. 1986
- Developmental Stages and the Analysis of Zygopteran Life Histories. Journal of Freshwater Ecology. 3:325-332. 1986
- EFFECTS OF DENSITY, DISTURBANCE, AND WASTE PRODUCTS ON GROWTH OF LARVAL ENALLAGMA EBRIUM (HAGEN) (ODONATA: COENAGRIONIDAE). Canadian Entomologist. 118:325-328. 1986
- Estimating food availability for larval dragonflies: a cautionary note. Canadian Journal of Zoology. 64:1036-1038. 1986
- Wounding as an index of aggressive interactions in larval Zygoptera (Odonata). Canadian Journal of Zoology. 64:893-897. 1986
- Estimates of Heritabilities and of Genetic and Phenotypic Correlations among Growth and Reproductive Traits in Yearling Angus Bulls1. Journal of Animal Science. 58:887-893. 1984
- Effects of Food Abundance on Growth, Survival, and Use of Space by Nymphs of Coenagrion Resolutum (Zygoptera). Oikos. 38:47-47. 1982
- Behavioural interactions and use of feeding areas by nymphs of Coenagrion resolutum (Coenagrionidae: Odonata). Oecologia. 49:353-358. 1981
- Life cycles and food ofcoenagrion resolutum(coenagrionidae: odonata) andlestes disjunctus disjunctus(lestidae: Odonata) populations from the boreal forest of Alberta, Canada. Aquatic Insects. 3:179-191. 1981
- Use of space in relation to areas of food concentration by nymphs of Lestes disjunctus (Lestidae, Odonata) in captivity. Canadian Journal of Zoology. 59:134-135. 1981
- Use of space in relation to feeding areas by zygopteran nymphs in captivity. Canadian Journal of Zoology. 58:1060-1065. 1980
- THE NYMPHS OF COENAGRION INTERROGATUM AND C. RESOLUTUM (ZYGOPTERA: COENAGRIONIDAE) FROM THE BOREAL FOREST OF ALBERTA, CANADA. Canadian Entomologist. 112:433-436. 1980
- Specific status of Keratella cochlearis (Gosse) and K. earlinae Ahlstrom (Rotifera: Brachionidae): morphological and ecological considerations. Canadian Journal of Zoology. 57:1719-1722. 1979
- Birth rate of planktonic rotifers in relation to food concentration in a shallow, eutrophic lake in western Canada. Canadian Journal of Zoology. 57:1206-1214. 1979