Table 1.

The BioGeoBEARS results showing significant dispersal and vicariance events

Node	Dispersal	Vicariance	RASP route	Probability
	Geographical regions
n4	Yes	Yes	BEF– > BFAEG– > BF|AEG	0.0144
n5	Yes	Yes	BF– > FBC– > F|BC	0.3614
n6	No	Yes	BC– > C|B	0.9835
n7	Yes	Yes	AEG– > EADG– > E|ADG	0.1716
n8	No	Yes	ADG– > G|AD	0.5493
n9	No	Yes	AD– > A|D	0.9960
	Biomes
n4	No	Yes	AB– > A|B	0.6522
n5	Yes	No	A– > A^A– > AB^A– > A|AB	0.8410
n6	No	Yes	AB– > B|A	0.9062
n7	No	No	B– > B^B– > B|B	0.8281
n8	Yes	No	B– > B^B– > BC^B– > B|BC	0.7450
n9	Yes	Yes	BC– > ABC– > AB|C	0.8525
	Geographic barriers
n4	Yes	Yes	A– > AC– > A|C	0.0932
n5	Yes	Yes	A– > AB– > A|B	0.3993
n6	Yes	Yes	B– > BA– > B|A	0.7221
n7	Yes	Yes	C– > CB– > C|B	0.3018
n8	Yes	Yes	B– > CB– > C|B	0.2287
n9	Yes	Yes	B– > BA– > B|A	0.5436

The hypothetical RASP habitat reconstruction history together with its probability is shown. The reconstruction used the seven geographic regions, three biomes and the three regions separated by the Great Escarpment and Swartberg Mountain. “ |” indicates geographic isolation, “ – > ” indicate directional changing of the RASP route