Fig. 2
From: Tradeoffs in demographic mechanisms underlie differences in species abundance and stability
Growth rate when rare and negative density dependence shape population size and stability. a Relationship between per capita population growth rate and abundance for six serpentine grassland species. Differences in species’ average growth rates when rare (GRWR; mathematically indicated by λ and visually by squares on the y-intercept) and intraspecific negative density-dependence (NDD; mathematically indicated by α and visually by the slope of the line) result in different predicted average abundances (indicated by circles on the dotted line). b Observed mean abundance over time (±s.e.m., n = 150) in relation to predicted average abundance (circles from panel a). c Observed species stability over time (±s.e.m., n = 150) in relation to GRWR (squares from panel a)
