Fig 1.
South Australia on the mainland of the Australian continent (plus its off-shore islands), showing the proportion of remnant native vegetation within a moving window of 25 x 25 km (large areas with no vegetation in the north are salt lakes). Scale bar: 200 km. Inset: context within Australia.
Table 1.
Biodiversity metrics mapped for South Australia and associated datasets and tests.
Fig 2.
Maps of measured biodiversity metrics.
Maps are smoothed at a resolution of 1 km2 with values given per surrounding 0.25° x 0.25° area: (a) Estimated species richness based on non-parametric estimator (plot data); (b) georeferenced weighted endemism of native species (plot data)–continuous outlier metric; (c) phylogenetic diversity (plot data)–continuous outlier metric; (d) georeferenced phylogenetic endemism (plot data)–continuous outlier; (e) species richness of conservation-dependent species (plots); (f) species richness of categorical South Australian endemics (plot data).
Fig 3.
Here beta diversity is represented by the mean change in a Canonical Correspondence Analysis axis coordinate within a moving window of 3 x 3 grid cells, when this axis is constrained by ‘mean maximum temperature of the hottest month’ (combined data). Higher values represent more rapid turnover along the compositional axis.
Fig 4.
Identified centres of plant biodiversity.
The base raster map shows the proportion of remnant vegetation in a moving window (see Fig 1). Contours show the rate of change in species composition with spatial increases in temperature (predicted from a locally weighted nonlinear regression of the first CCA axis), where more negative slopes indicate higher climate sensitivity. Circles show locations of 6 centres referred to in Table 2. See Table 2 for more detail on the identified centres.
Fig 5.
Number of recorded significant fires.
Base map shows IBRA bioregions (Fig A in S1 Appendix). Numbers show locations of 6 centres referred to in Table 2.
Fig 6.
Species richness of introduced plant species (plot data).
Circles represent the density of individual records of Buffel Grass (Cenchrus ciliaris L.) within 1° grid cells on a logarithmic scale. Note, the number of records is influenced by sampling biases and does not directly indicate abundance. Numbers show locations of centres referred to in Table 2.
Table 2.
Identified centres of plant biodiversity in South Australia.