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Dryad

Data from: Parasite-driven cascades or hydra effects: susceptibility and foraging depression shape parasite-host-resource interactions

Abstract

This contains data for the manuscript listed in the title.

We measured the foraging rates of individual zooplankton hosts, Daphnia dentifera, on phytoplankton resources, Ankistrodesmus falcatus, in the presence of fungal parasites of zooplankton, Metschnikowia bicuspidata. Some of these data are previously published (Genotypes12_foraging.csv by Strauss, Alexander T., et al. "Genotypic variation in parasite avoidance behaviour and other mechanistic, nonlinear components of transmission." Proceedings of the Royal Society B 286.1915 (2019): 20192164.) and some are published now for the first time (Genotype3_foraging.csv).

In addition, we present novel evidence from a mesocosm experiment (Mesocosm_data1.csv-Mesocosm_data20.csv) of populations of each genotype or each pair of genotypes with phytoplankton resources and fungal parasites present or absent; our last treatment was low or high nutrient supply for the phytoplankton. With data on infection prevalence, host density, and phytoplankton density, we show how host traits and nutrients control outcomes for prevalence, host density, and phytoplankton density.

These data may be reused with appropriate citation.