Table 1. The 11 species of amphibians found at 50 lowland sites in the Overberg, South Africa.
The number of sites is provided with the number of temporary sites in brackets. Their position in ordinal space and from a partial RDA analysis demonstrate affinity. Species are sorted according to their position along RDA1 (see Fig. 2). Mean snout-vent length (SVL) is taken from AmphiBIO (Oliveira et al., 2017). Range sizes are calculated from Extent of Occurrence from the IUCN RedList (www.iucnredlist.org).
| Species | Family | Number of sites | RDA1* | SVL (mm) | IUCN range (km2) |
|---|---|---|---|---|---|
| Amietia fuscigula | Pyxiecephalidae | 27 (5) | 0.5049 | 125 | 598,013 |
| Hyperolius horstocki | Hyperoliidae | 19 (6) | 0.5148 | 43 | 18,110 |
| Tomopterna delalandii | Pyxiecephalidae | 10 (2) | 0.4277 | 41 | 215,909 |
| Xenopus laevis | Pipidae | 34 (8) | 0.3862 | 147 | 3,761,124 |
| Scelerophys pantherina | Bufonidae | 12 (1) | 0.2792 | 140 | 3,824 |
| Scelerophys capensis | Bufonidae | 12 (2) | 0.1671 | 115 | 732,181 |
| Arthroleptella villiersi | Pyxiecephalidae | 8 (3) | 0.0588 | 22 | 6,382 |
| Semnodactylus wealii | Hyperoliidae | 4 (2) | 0.0687 | 44 | 376,520 |
| Cacosternum australis | Pyxiecephalidae | 29 (10) | 0.1595 | 26 | 17,037 |
| Strongylopus bonaespei | Pyxiecephalidae | 4 (3) | −0.1525 | 42 | 28,077 |
| Strongylopus grayii | Pyxiecephalidae | 39 (13) | −0.2411 | 64 | 580,275 |
Note:
*
Note that RDA 2 is not shown here as, although it is shown in Fig. 2, it was not significant.