Potential Effects of the Loss of Native Grasses on Grassland Invertebrate Diversity in Southeastern Australia

Figure 3

Examples of plots from exploratory principal components analyses of pitfall and sweep-netting morphospecies richness in (a) February 2007 and (b) the three surveys in 2007. Richness (% richness) is the number of morphospecies, for a particular method and sampling area, as a percentage of total morphospecies for that method over all sampling areas. For each sampling area (EP, EA, etc.) percentage richness for pitfalls (P) and sweep-netting (S) is shown. Other variables are the covers of native grass (Ngrass), clovers, total plant cover (Tot cover), introduced grass (Igrass), and the cover of plant litter on the surface.

(a)

(b)