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Agrochemicals increase trematode infections in a declining amphibian species
It is shown that the widely used herbicide, atrazine, was the best predictor of the abundance of larval trematodes in the declining northern leopard frog Rana pipiens, and analysis of field data supported a causal mechanism whereby both agrochemicals increase exposure and susceptibility to larval Trematodes by augmenting snail intermediate hosts and suppressing amphibian immunity. Expand
Ecology and pathology of amphibian ranaviruses.
In as much as ranaviral disease is listed as a notifiable disease by the World Organization for Animal Health and is a threat to amphibian survival, biosecurity precautions are implemented by nations to reduce the likelihood of transporting ranavirus virions among populations. Expand
Biodiversity decreases disease through predictable changes in host community competence
It is shown that host diversity inhibits transmission of the virulent pathogen Ribeiroia ondatrae and reduces amphibian disease as a result of consistent linkages among species richness, host composition and community competence. Expand
Assessing the ecology in ecotoxicology: a review and synthesis in freshwater systems.
This article assesses how pesticides affect freshwater systems by applying the conceptual framework of density- and trait-mediated indirect effects from the field of basic ecology and demonstrates the utility of this framework for understanding the conditions under which pesticides affect species interactions, communities and ecosystems. Expand
An outdoor mesocosm experiment on aquatic communities containing three tadpole species, zooplankton, and algae found that pesticides can have both direct and indirect effects in natural communities and that these effects critically depend upon the composition of the community. Expand
Ecophysiology meets conservation: understanding the role of disease in amphibian population declines
The importance of understanding the outcome of infection and disease in the context of host ecophysiology using amphibians as a model system is highlighted and links between environmental stress, endocrine–immune interactions, disease and climate change are reviewed. Expand
Parasitism in a community context: trait-mediated interactions with competition and predation.
Predation and competition can induce important density- and trait-mediated effects on species, with implications for community stability. However, interactions of these factors with parasitism remainExpand
Living fast and dying of infection: host life history drives interspecific variation in infection and disease risk.
The hypothesis that 'pace-of-life' predicts parasite infection and host pathology is tested and it is found that species that developed quickly and metamorphosed smaller ('fast-species') were particularly prone to infection and pathology. Expand
The impact of larval predators and competitors on the morphology and fitness of juvenile treefrogs
Results demonstrate that larval environments can have profound impacts on the traits and fitness of organisms later in ontogeny. Expand
Effects of clothianidin on aquatic communities: Evaluating the impacts of lethal and sublethal exposure to neonicotinoids
Low soil binding and high water solubility of neonicotinoid insecticides puts aquatic environments at high risk for contamination via runoff events, and high invertebrate predator mortality with increases in clothianidin concentration can result in a top-down trophic cascade in a community dominated by invertebrates. Expand