Drimia sudanica
Friis & Vollesen
Pays · région · aire protégée · écorégion · biome
Pas d'interactions documentées pour cette espèce.
Liste rouge IUCN
EN · En dangercritères B2ab(ii,iii)?Inconnue- Évaluation
- 2019 · v3.1
- Altitude
- 1035 – 2000 m
- Profondeur
- – m
État de la populationTexte officiel évaluation IUCNExpert
There is no population information for this species but it is suspected to be rare as it is only known from four herbarium specimens. Although the Royal Botanic Gardens, Kew and Guinean botanists have carried out botanical fieldwork across Guinea since 2006 the species has not been recollected. Surveys for this species at the three known localities are recommended.
Menaces identifiées(4 menaces classées CMP-IUCN)
1_1Housing & urban areasUnknownMinority (<50%)Ongoing2_1_2Small-holder farmingUnknownMajority (50-90%)Ongoing2_3_1Nomadic grazingUnknownMajority (50-90%)Ongoing7_1_3Trend Unknown/UnrecordedUnknownMinority (<50%)Ongoing
Description complète des menacesTexte détaillé évaluation IUCNExpert
With limited information on the exact localities for this species it is difficult to identify specific threats. In South Sudan the grassland where the species had been collected was recently burnt. Fire may be a threat, but many geophytes have adapted to fires in grasslands and further research on this species fire adaption is recommended. This locality is within the Imatong Forest Reserve but at lower elevations nearby there are some small villages and agricultural areas are visible on satellite imagery. Livestock grazing occurs within the reserve (K. Vollesen pers. comm. 2019) and is suspected to be a threat. In Sierra Leone the species was collected close to the border with Guinea and some small villages and agricultural areas are visible on satellite imagery. The only known locality in Guinea is Labé, which is now a large town surrounding by agriculture. As the herbarium specimen from Labé was collected in 1905 it is possibly the species is extinct in this area.
Habitats préférentiels (classification IUCN)
4_5Grassland - Subtropical/Tropical Dry
Mesures de conservation recommandéesStratégies de conservation IUCNExpert
The species occurs in Imatong Forest Reserve in South Sudan (IUCN and UNEP-WCMC 2019). It is not known to occur in any protected areas in Guinea or Sierra Leone.
Actions de conservation (3)Conservation Actions Classification Scheme — IUCNExpert
1_1Site/area protection3_4_2Genome resource bank4_3Awareness & communications
Stress écologiques (4)Stresses Classification — IUCNExpert
1_1Ecosystem conversion1_1Ecosystem conversion1_2Ecosystem degradation1_2Ecosystem degradation
Priorités de recherche (5)Research Needed Classification — IUCNExpert
1_2Population size, distribution & trends1_3Life history & ecology1_5Threats3_1Population trends3_4Habitat trends
Niche IUCN globaleRealms · Systems · LMEs · Growth forms · FAOs — biogéographie IUCNExpert
Royaumes biogéographiques
Afrotropical
Systèmes (terrestre/eau douce/marin)
Terrestrial
Formes de croissance
Geophyte
Références bibliographiques (9)Sources scientifiques de l'évaluation IUCNExpert
- BGCI. 2019. PlantSearch online database. Richmond, UK Available at: <a href="www.bgci.org/plant_search.php">www.bgci.org/plant_search.php</a>. (Accessed: 2019).
- GBIF. 2019. Global Biodiversity Information Facility. Available at: <a href="http://data.gbif.org/species/">http://data.gbif.org/species/</a>.
- IUCN and UNEP-WCMC. 2019. The World Database on Protected Areas (WDPA). Cambridge, UK Available at: <a href="https://www.protectedplanet.net/">https://www.protectedplanet.net/</a>. (Accessed: 4 January 2019).
- IUCN. 2019. The IUCN Red List of Threatened Species. Version 2019-2. Available at: <a href="www.iucnredlist.org">www.iucnredlist.org</a>. (Accessed: 04 July 2019).
- Bachman, S., Moat, J., Hill, A.W., de la Torre, J. and Scott, B. 2011. Supporting Red List threat assessments with GeoCAT: geospatial conservation assessment tool. In: V. Smith and L. Penev (eds) e-Infrastructures for data publishing in biodiversity science. <i>Zookeys</i> 150: 117–126.
- Lisowski, S. 2009. <i>Flore (Angiospermes) de la République de Guinée</i>. Jardin Botanique National de Belgique, Meise.
- Akoegninou, A., van der Burg, J.W. and var der Maesen, L.J.G. 2006. <i>Flore analytique du Benin</i>. Backhuys, Leiden.
- Friis, I. and Vollesen, K. 1999. <i>Drimia sudanica</i>, nom nov. (Hyacinthaceae), a rare species of the Sudanian grasslands. <i>Nordic Journal of Botany</i> 19(2): 209-212.
- Thiselton-Dyer, W.T. 1898. <i>Flora of Tropical Africa: Hydrocharideae to Liliaceae</i>. Reeve, London.
Évaluateurs & contributeurs (5)Personnes ayant contribué à l'évaluation IUCNExpert
assessor
Williams, E. & Cheek, M.
contributor
Lomer, R. & Vollesen, K
evaluator
Diop, F.N.
facilitators
Hargreaves, S.
institutions
Royal Botanic Gardens, Kew
Williams, E. & Cheek, M. 2019. Drimia sudanica. The IUCN Red List of Threatened Species 2019: e.T98565395A100439957. Accessed on 05 May 2026.
Répartition mondiale
Aucune observation géoréférencée avec précision suffisante (<10 km) dans GBIF pour cette espèce.
Consulter sur les bases externes
Note nomenclaturale & synonymesDétails taxonomiques + synonymes CoLExpert
Note nomenclaturale
TAXREF v18 — INPN/MNHNSynonymes (2)— redirigent vers cette page
- Urginea paucifloraBaker
- Ebertia pauciflora(Baker) Speta
Sources : Catalogue of Life Cross-References (synonymes) · TAXREF v18 INPN/MNHN (commentaires FR).