IUCN Species Information Service (SIS) Toolkit | |
Assessment Report | |
Taxonomy | ||||
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Kingdom | Phylum | Class | Order | Family |
PLANTAE | TRACHEOPHYTA | MAGNOLIOPSIDA | LAMIALES | ACANTHACEAE |
Scientific Name: | Asystasia hirsuta |
Species Authority: | (T.J.Edwards) I.Darbysh. & E.A.Tripp |
Common Name/s: - | |
Synonym/s: | Salpinctium hirsutum T.J.Edwards |
Taxonomic Notes: | - |
Assessment Information | |
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Red List Category & Criteria: | Vulnerable B1ab(iii)+2ab(iii) |
Year Assessed: | 2023 |
Assessor/s: | Braun, K. |
Reviewer/s: | Raimondo, D. |
Contributor/s: | |
Facilitator/s: | |
Institutions/s: | |
Justification: This species has a restricted distribution, with an extent of occurrence (EOO) of 6,923.895 km2 and an area of occupancy (AOO) of 24 km2. It known from six locations and the areas where this species has been found are subjected to the threat of habitat destruction by ongoing livestock grazing, and in some parts of its range, to urban development. Based on this, it has been assessed as Vulnerable, under Criterion B. | |
History: | - |
Geographic Range | |
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Range Description: | This species has been recorded from five widely spread locations within Eswatini, four from the highveld and one in the Lubombo mountains. There is also a record from South Africa, near Nelspruit, making this species a near endemic for Eswatini. |
Countries: | Native: Eswatini; Mpumalanga; |
Population | |
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Population: | No population surveys have been carried out for this species. For the purposes of this assessment, the locations from older records have been included, as, at the time of this assessment, there is no evidence to indicate that the plant no longer exists in these areas. Where this species has been observed recently, it was uncommon, with two individuals observed in the area visited. It is likely that this species is naturally rare. |
Population Trend: | Unknown |
Habitat and Ecology | |
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Habitat and Ecology: | This species has been observed in vegetation type KaNgwane Montane Grassland (Gm16) in the Eswatini highveld, and in vegetation type Southern Lebombo Bushveld (SVI16) in the Lubombo Mountains. In South Africa, based on the relatively vague herbarium specimen locality description it is inferred to occur in Barberton Serpentine Sourveld (SVI13) (Mucina et. al. 2018). |
List of Habitats: | 2 Savanna 2.2 Savanna - Moist 4 Grassland 4.7 Grassland - Subtropical/Tropical High Altitude |
Threats | |
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Major Threat(s): | The recent observations of this species in the Eswatini highveld were in an area subject to heavy grazing and adjacent to expanding urban development. These threats also impact a second subpopulation recorded from the same general area, near the Ngwenya/Oshoek border. All subpopulations within Eswatini are likely to be impacted by livestock grazing as none of the subpopulations occur within protected areas. The threats to the South African subpopulation are unknown. |
List of Threats: | 1 Residential & commercial development 1.1 Housing & urban areas 2 Agriculture & aquaculture 2.3 Livestock farming & ranching 2.3.2 Small-holder grazing, ranching or farming |
Conservation Actions | |
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Conservation Actions: | None of the records for this species are from within an existing conservation area. There are no ex situ collections either and given the lack of in situ protection, ex situ collection is a priority. |
List of Conservation Actions: | 1 Land/water protection 1.2 Resource & habitat protection 3 Species management 3.4 Ex-situ conservation 3.4.2 Genome resource bank |
Bibliography | |
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Bachman,
S., Moat, J., Hill, A.W., de la Torre, J. and Scott, B. 2011.
Supporting Red List threat assessments with GeoCAT geospatial
conservation tool. In: Smith V, Penev L (Eds) e-Infrastructure for data
publishing in biodiversity science. . ZooKeys 150: 117-126. Mucina, L., Rutherford, M.C. and Powrie, L.W. (Editors). 2018. The Vegetation Map of South Africa, Lesotho and Swaziland. South African National Biodiversity Institute. Available at: http://bgis.sanbi.org/Projects/Detail/186. |
Citation: | - |