Appendix C (TABLE C1). Parameters and empirical point estimates for Cinna arundinacea - Neotyphodium schardlii population dynamics. Parameters f and s represent the fecundity and survival, respectively, of symbiotic (E+) and symbiont-free (E-) hosts. F and S are the ratios of symbiotic to symbiont-free values. r represents the host life history context and is defines as f- / s-. Empirical estimates for f are based on seed production multiplied by recruitment probability.