Understanding how ecosystem nutrient availability influences parasites is challenging, especially for trophically transmitted parasites in hosts occupying higher trophic levels. Host tissue nutrient stoichiometry may elucidate these effects by indicating nutrient availability within a host’s environment and/or mediating these effects on parasites. We assessed these possibilities by manipulating nutrient availability in 11 expe...

Nutrient availability can influence the population size of primary consumers and their parasites, but identifying the mechanisms responsible for nutrient‐induced shifts in parasite population sizes is challenging. Parasites of consumers may respond to complex feedbacks between consumers and their resources via shifts in both within‐ and between‐host processes. We investigated these effects by allowing well‐studied host–parasit...

A growing body of literature suggests that the effects of host diet on populations of parasites within a host (i.e., infrapopulations) are dictated by the elemental stoichiometry of the parasite, and new data suggest that the stoichiometric composition of parasites can shift in response to a host's diet. The consequences of this shift in parasite stoichiometry for host–parasite interactions are underexplored. Here, we present...