Table 2. Condition of mainland BioNet remnants and other city areas in relation to the urban edge.


Upland† Lowland‡
Site condition Inside (%) Outside (%) Subtotal (ha) Inside (%) Outside (%) Subtotal (ha) Total (ha)
Natural, high quality§ 0 100 42,423 18 82 24,048 66,471
Natural, medium quality¦ 9 91 1240 47 53 10,808 12,048
Natural, low quality¶ 10 90 881 33 67 6650 7531
Natural, unselected# 11 89 2621 27 73 7225 9846
Total natural 1 99 47,165 28 72 48,731 95,896
Transformed†† 68 32 10,999 54 46 138,505
†Associated with mountain chains.
‡Cape Flats and West Coast forelands, incorporating the low shale and granite hills.
§Sites retain biodiversity structure, diversity, and function, but may support some invasive alien vegetation.
¦Sites have lost some structural components and diversity.
¶Sites have lost structure and a high proportion of diversity, but soils are intact and vegetation is considered restorable.
#Natural areas not included in the Biodiversity Network.
††Developed or cultivated areas that are considered nonrestorable.