|
Scientific Name | Gerbera aurantiaca Sch.Bip. |
Higher Classification | Dicotyledons |
Family | ASTERACEAE |
Common Names | Daisy (e), Hilton Daisy (e) |
National Status |
Status and Criteria | Endangered A2ac |
Assessment Date | 2005/08/19 |
Assessor(s) | C.R. Scott-Shaw, I.M. Johnson & J.E. Victor |
Justification | A mistbelt grassland endemic, this species habitat has been over 90% transformed for commercial forestry plantations and crop and pasture cultivation over the past 120 years. There has also been extensive recent loss of habitat in the KwaZulu-Natal Midlands to urban development. Gerbera aurantiaca is a long-lived clonal species whose generation time is suspected to exceed 100 years. Subpopulations are scattered and there isn't a linear relationship between mistbelt grasslands and the presence of subpopulations, we therefore extrapolate a 50% loss of subpopulations from the 90% loss of habitat. Recent studies by I. Johnson and S. Johnson show that this species is a poor recruiter and has low seed viability as a result it is unlikely to be able to recover from the past loss of individuals. |
Distribution |
Endemism | South African endemic |
Provincial distribution | KwaZulu-Natal, Mpumalanga |
Range | KwaZulu-Natal Midlands, Carolina and Badplaas. |
Habitat and Ecology |
Major system | Terrestrial |
Major habitats | Midlands Mistbelt Grassland, Moist Coast Hinterland Grassland, Dry Coast Hinterland Grassland, Northern Zululand Mistbelt Grassland, KaNgwane Montane Grassland, Paulpietersburg Moist Grassland, Wakkerstroom Montane Grassland |
Description | Mistbelt grassland, well-drained doleritic areas. |
Threats |
Invasive Alien Species (direct effects), Habitat degradation, Changes in native species dynamics, Habitat loss |
Population |
Population trend | Decreasing |
Assessment History |
Taxon assessed |
Status and Criteria |
Citation/Red List version | Gerbera aurantiaca Sch.Bip. | EN A2ac | Raimondo et al. (2009) | Gerbera aurantiaca Sch.Bip. | EN | Scott-Shaw (1999) | Gerbera aurantiaca Sch.Bip. | Vulnerable | Hilton-Taylor (1996) | Gerbera aurantiaca Sch.Bip. | Vulnerable | Hall et al. (1980) | |
Bibliography |
Hall, A.V., De Winter, M., De Winter, B. and Van Oosterhout, S.A.M. 1980. Threatened plants of southern Africa. South African National Scienctific Programmes Report 45. CSIR, Pretoria.
Hilton-Taylor, C. 1996. Red data list of southern African plants. Strelitzia 4. South African National Botanical Institute, Pretoria.
Raimondo, D., von Staden, L., Foden, W., Victor, J.E., Helme, N.A., Turner, R.C., Kamundi, D.A. and Manyama, P.A. 2009. Red List of South African Plants. Strelitzia 25. South African National Biodiversity Institute, Pretoria.
Scott-Shaw, C.R. 1999. Rare and threatened plants of KwaZulu-Natal and neighbouring regions. KwaZulu-Natal Nature Conservation Service, Pietermaritzburg.
|
Citation |
Scott-Shaw, C.R., Johnson, I.M. & Victor, J.E. 2005. Gerbera aurantiaca Sch.Bip. National Assessment: Red List of South African Plants version . Accessed on 2025/03/27 |