META-ANALYSIS
We conducted a systematic review and meta-analysis to evaluate the
impacts of three broad types of environmental stressors on disease
dynamics. Our meta-analyses focused on two specific questions: Q1) are
stressor fitness effects more severe for infected vs. uninfected hosts?
and Q2) is infectivity more susceptible to environmental stress than
host fitness traits? To address these questions with data from primary
studies, we used infection intensity and prevalence as proxies for
infectivity and survivorship and fecundity as proxies of host fitness.