Resource quantity affects infection success and impacts of a microsporidian on hosts

Resource quantity in the environment often changes over time and influences the nutritional status of hosts that may encounter parasites. If resource availability significantly alters both infection success and within-host growth of a parasite, fluctuations in resources may underlie the seasonal disease outbreaks that have been observed for some parasites. Moreover, resource quantity may affect how a parasite impacts host survivorship and traits, including feeding rate and assimilation of nutrients. Some parasites, such as intracellular microsporidia with highly reduced genomes, may be particularly sensitive to variation in host nutritional status and more likely to have resource-dependent impacts. To determine how resource quantity affects infection success and parasite impacts on hosts, we conducted laboratory experiments using the microsporidian parasite Ordospora pajunii and its zooplankton host, the dominant grazer Daphnia dentifera. We found that infection probability and spore bu..., , , # Data from: Resource quantity affects infection success and impacts of a microsporidian on hosts

[https://doi.org/10.5061/dryad.2v6wwpzzr](https://doi.org/10.5061/dryad.2v6wwpzzr)

## Description of the data and file structure

\# experimental study on how resource quantity affects infections and impacts of a parasite on hosts

### Files and variables

#### ## Description of the data and file structure

1\. scripts: this contains the code used to create figures and conduct analyses.

2\. data: this contains the data collected during the study.

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DATA

InfectionStatusAndBurden.csv: this data file contains the infection status and spore burden of Daphnia dentifera exposed to a microsporidian parasite. ID = the identification code for experimental individual. Food_Level = resource quantity treatment (high = high food, medium = 12.5% of the high food treatment, low = 6.25% of ...,