Assessment Report - Streptocarpus davyi

	IUCN Species Information Service (SIS) Toolkit
	Assessment Report

Taxonomy
Kingdom	Phylum	Class	Order	Family
PLANTAE	TRACHEOPHYTA	MAGNOLIOPSIDA	LAMIALES	GESNERIACEAE

Scientific Name:	Streptocarpus davyi
Species Authority:	S.Moore
Common Name/s: -
Synonym/s:	-
Taxonomic Notes:	-

Assessment Information
Red List Category & Criteria:	Least Concern N/A
Year Assessed:	2023
Assessor/s:	Braun, K. & Loffler, L.
Reviewer/s:	Raimondo, D.
Contributor/s:
Facilitator/s:
Institutions/s:
Justification: This species has a restricted distribution, with an extent of occurrence (EOO) of 405.191 km² and an area of occupancy (AOO) of 60 km². It grows on large boulders which afford it protection from the main degradation pressures to Eswatini highveld grasslands (grazing and burning). A small proportion of the population is susceptible to urban development. With 18 subpopulations known at the time of assessment and no significant decline taking place it is assessed as Least Concern.
History:	-

Geographic Range
Range Description:	This species is known from the Eswatini highveld, where it occurs from the Mankayane area north to the Masilela area. There is a possible additional record from the Pilgrims Rest area in South Africa, but it has not yet been possible to locate this specimen to confirm identification and locality information, so it has been excluded from this assessment.
Countries:	Native: Eswatini;

Population
Population:	No detailed population surveys have yet been carried out for this species, but the population is inferred to be currently stable. The species is restricted to the Eswatini highveld. As the habitat still exists in the locations from older records, it has been assumed that they still occur in these areas. It has not yet been possible to trace the one specimen recorded from South Africa to verify its identificaton, but it is suspected that it was not correctly identified, and has been excluded from this assessment.
Population Trend:	Stable

Population

Population:

No detailed population surveys have yet been carried out for this species, but the population is inferred to be currently stable. The species is restricted to the Eswatini highveld. As the habitat still exists in the locations from older records, it has been assumed that they still occur in these areas. It has not yet been possible to trace the one specimen recorded from South Africa to verify its identificaton, but it is suspected that it was not correctly identified, and has been excluded from this assessment.

Population Trend:

Stable

Habitat and Ecology
Habitat and Ecology:	This species is found growing in shallow peaty soil in sheltered niches, at the base of granite boulders, usually on the south facing side of the boulders, in deep shade. Most of the records are from hilltops, but it has also been observed on hillsides which have exposed granite areas. The vegetation type where it has been found is KaNgwane Montane Grassland (Gm16) (Mucina et. al. 2018).
List of Habitats:	4 Grassland 4.7 Grassland - Subtropical/Tropical High Altitude

Threats
Major Threat(s):	This species is protected to a large degree by its occurrence in very rocky areas, a small portion of its population could be affected by urban expansion, as well as habitat degradation due to heavy grazing and burning.
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
Conservation Actions:	None of the localities for this species within Eswatini fall within a formally protected area, although it does occur in a proposed conservancy area. Material has been collected for cultivation in botanical gardens in the past, although it is not known whether any of these plants are still alive. Fieldwork is required to determine whether this species still occurs at the older previously recorded localities, and whether it occurs further afield in areas with similar habitats.
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

Conservation Actions

Conservation Actions:

None of the localities for this species within Eswatini fall within a formally protected area, although it does occur in a proposed conservancy area. Material has been collected for cultivation in botanical gardens in the past, although it is not known whether any of these plants are still alive. Fieldwork is required to determine whether this species still occurs at the older previously recorded localities, and whether it occurs further afield in areas with similar habitats.

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
	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.

Bibliography

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: