Eriospermum halenbergense
Dinter
Pays · région · aire protégée · écorégion · biome
Pas d'interactions documentées pour cette espèce.
Liste rouge IUCN
LC · Préoccupation mineure?Inconnue- Évaluation
- 2016 · v3.1
- Altitude
- – m
- Profondeur
- – m
État de la populationTexte officiel évaluation IUCNExpert
This species was cited as "apparently a rare species" in a revision of the genus (Perry 1994). When it was first described by Dinter (1932) he noted that when he collected the first specimen he had only found five plants. Population trends are unknown. As a geophyte which appears to be dependent on good rainfall (H. Kolberg pers. comm. 2015) the population size may naturally fluctuate.
Menaces identifiées(2 menaces classées CMP-IUCN)
11_2DroughtsCausing/Could cause fluctuationsWhole (>90%)Future4_1Roads & railroadsUnknownUnknownPast, Unlikely to Return
Description complète des menacesTexte détaillé évaluation IUCNExpert
This species is restricted to a small area east of Luderitz. The deserts in this area are well protected (within the Sperrgebiet and the Namib-Naukluft National Parks) and this locality is not affected by diamond mining. There is some succulent plant collecting in this region but this is not thought to affect this species (P. Craven pers. comm. 2015). Two of the herbarium records are not far from the main road and railway towards Luderitz so this area could possibly be affected by development of new tourist infrastructure but currently there are no plans for this region. There may have been some off road driving disturbing this habitat during recent construction work upgrading the railway line but this is now complete (H. Kolberg pers. comm. 2015). Droughts are predicted to intensify in Southern Africa in the 21st century due to reduced rainfall and/or increased evapotranspiration (Niang et al. 2014). As this species may flower only after good rainfalls (H. Kolberg pers. comm. 2015) reduced rainfall could affect this species.
Habitats préférentiels (classification IUCN)
8_3Desert - Cold
Mesures de conservation recommandéesStratégies de conservation IUCNExpert
The area where this species has been found is by the northern edge of the Tsau//Khaeb (Sperrgebiet) National Park. However, as it is on the edge of the National Park it is suspected to be only passively protected (S.Loots pers. comm. 2016). Parts of this park are closed for diamond mining and are not accessible to the public. This species should be targeted for ex situ conservation. Surveys are required in this area to find out more information on the size of the population.
Actions de conservation (2)Conservation Actions Classification Scheme — IUCNExpert
3_4_2Genome resource bank4_3Awareness & communications
Stress écologiques (4)Stresses Classification — IUCNExpert
1_2Ecosystem degradation1_2Ecosystem degradation2_1Species mortality2_2Species disturbance
Priorités de recherche (4)Research Needed Classification — IUCNExpert
1_2Population size, distribution & trends1_3Life history & ecology1_5Threats3_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 (7)Sources scientifiques de l'évaluation IUCNExpert
- IUCN. 2016. The IUCN Red List of Threatened Species. Version 2016-3. Available at: <a href="www.iucnredlist.org">www.iucnredlist.org</a>. (Accessed: 07 December 2016).
- Conservation International. 2015. Biodiversity Hotspots: Succulent Karoo. Available at: <a href="http://www.cepf.net/resources/hotspots/africa/Pages/Succulent-Karoo.aspx">http://www.cepf.net/resources/hotspots/africa/Pages/Succulent-Karoo.aspx</a>. (Accessed: 29 October 2015).
- Niang, I.C., Ruppel, M.A., Abdrabo, A., Essel, C., Lennard, J., Padgham, J. and Urquhart, P. 2014. Africa. In: V.R. Barros, C.B. Filed, D.J. Dokken, M.D. Mastrandrea, K.J. Mach, T.E. Bilir, M. Chatterjee, K.L. Ebi, Y.O. Estrada, R.C. Genova, B. Girma, E.S. Kissel, A.N. Levy, S. MacCracken, P.R. Mastrandrea, and L.L. White (eds), <i>Climate Change 2014: Impacts, Adaptation and Vulnerability. Part B: Regional Aspects. Contribution of Working Group II to the Fifth Assessment Report of the Intergovernmental Panel on Climate Change</i>, pp. 1199-1266. Cambridge University Press, Cambridge.
- 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.
- Loots, S. 2005. Red Data Book of Namibian Plants. SABONET Report No. 38.
- Perry, P. 1994. A revision of the genus <i>Eriospermum</i> (Eriospermaceae). <i>Contributions from the Bolus Herbarium</i> 17: 320.
- Dinter, V.K. 1932. Diagnosen neuer sudwestafrikanischer Pflanzen. <i>Repertorium Specierum Novarum Regni Vegetabilis</i> 30: 80-96.
Évaluateurs & contributeurs (4)Personnes ayant contribué à l'évaluation IUCNExpert
assessor
Williams, E. & Craven, P.
contributor
Budden, A., Crawford, F. & Kolberg, H.
evaluator
Loots, S.
facilitators
Hargreaves, S.
Williams, E. & Craven, P. 2016. Eriospermum halenbergense. The IUCN Red List of Threatened Species 2016: e.T46734A85124482. Accessed on 05 May 2026.
Répartition mondiale
Aucune observation géoréférencée avec précision suffisante (<10 km) dans GBIF pour cette espèce.