Figure 1. Species-level patterns of per capita population
growth rates (A-D) and occupancy (E-H) across a
productivity gradient. Productivity is represented by a green-red
vegetation index, where less productive sites are towards the left. In
panels A-D, dashed lines at λ =1 show the threshold for
persistence (i.e., positive population growth); blue and red data are
from the ‘without neighbors’ and ‘with neighbors’ treatments,
respectively, the latter most closely resembling natural conditions. The
isolated zero-inflation (i.e., germination) and conditional (i.e., seed
production) components of population growth are shown Fig. S6. Points
are the raw data jittered for interpretability, lines and 95%
confidence bands are shown from the best fit models.