Richard P. Shefferson and Deborah A. Roach. 2012. The triple helix of Plantago lanceolata: Genetics and the environment interact to determine population dynamics. Ecology 93:793–802.

Appendix D (FIG. D1). Estimates of projected population growth rate (λ). Dominant eigenvalues (λ) for cohort × block × year combinations (a) and sire × year combinations for all years in cohort 1 (b) and cohort 4 (c) in the experimental population of Plantago lanceolata. Dominant eigenvalues presented are for the years 2003–2009 in (a) and (c), and for 2001–2009 in (b). In (a), minor ticks refer to blocks, and in (b) and (c), minor ticks refer to years.