Tamier pied d'éléphant
Dioscorea elephantipes(L'Hér.) Engl.
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Pays · région · aire protégée · écorégion · biome
Graphe en cours d’indexation
Calcul du tissu écologique de Dioscorea elephantipes.
Le graphe apparaîtra automatiquement dès que le calcul est terminé (rafraîchissement toutes les 5s).
Liste rouge IUCN
LC · Préoccupation mineure↘Décroissante- Évaluation
- 2017 · v3.1
- Altitude
- 150 – 1200 m
- Profondeur
- – m
État de la populationTexte officiel évaluation IUCNExpert
It is locally common in some areas, but the population is decreasing overall due to over-harvesting (Victor and Dold 2004).
Menaces identifiées(2 menaces classées CMP-IUCN)
5_2_1Intentional use (species is the target)Rapid DeclinesUnknownOngoing2_3_2Small-holder grazing, ranching or farmingSlow, Significant DeclinesUnknownOngoing
Description complète des menacesTexte détaillé évaluation IUCNExpert
Dioscorea elephantipes is under threat from over-collection for the horticultural trade and for medicinal use. This threat is not perceived to be significant enough to cause sufficient a population reduction to trigger a threatened category. It is possible that the establishment of young plants is affected by overharvesting, but this is unproven. Additionally, this species is eaten and sometimes destroyed by Angora goats (Victor and Dold 2004).
Habitats préférentiels (classification IUCN)
3_5Shrubland - Subtropical/Tropical Dry★3_8Shrubland - Mediterranean-type Shrubby Vegetation
Mesures de conservation recommandéesStratégies de conservation IUCNExpert
There are 68 ex situ collections of Dioscorea elephantipes (BGCI 2016). Seeds have been collected as part of the Millennium Seed Bank Partnership programme (MSBP 2016). This species has been found in protected areas and was previously assessed as Declining by SANBI (Victor and Dold 2005).
Actions de conservation (2)Conservation Actions Classification Scheme — IUCNExpert
3_1_1Harvest management3_1_2Trade management
Stress écologiques (4)Stresses Classification — IUCNExpert
2_1Species mortality2_1Species mortality2_2Species disturbance2_2Species disturbance
Usage & commerce (3)Use & Trade — IUCNExpert
1Food - humansubsistance13Pets/display animals, horticultureinternationalnational3Medicine - human & veterinarynationalsubsistance
Priorités de recherche (5)Research Needed Classification — IUCNExpert
1_2Population size, distribution & trends2_3Harvest & Trade Management Plan3_1Population trends3_2Harvest level trends3_3Trade trends
Niche IUCN globaleRealms · Systems · LMEs · Growth forms · FAOs — biogéographie IUCNExpert
Royaumes biogéographiques
Afrotropical
Systèmes (terrestre/eau douce/marin)
Terrestrial
Formes de croissance
GeophyteVines
Références bibliographiques (8)Sources scientifiques de l'évaluation IUCNExpert
- Wilkin, P. n.d.. <i>Dioscorea elephantipes</i> (elephant's foot yam). Available at: <a href="http://www.kew.org/science-conservation/plants-fungi/dioscorea-elephantipes-elephants-foot-yam">http://www.kew.org/science-conservation/plants-fungi/dioscorea-elephantipes-elephants-foot-yam</a>. (Accessed: 15 December 2016).
- IUCN. 2017. The IUCN Red List of Threatened Species. Version 2017-3. Available at: <a href="www.iucnredlist.org">www.iucnredlist.org</a>. (Accessed: 5 December 2017).
- BGCI. 2016. PlantSearch. London: Botanic Gardens Conservation International Available at: <a href="www.bgci.org/plant_search.php">www.bgci.org/plant_search.php</a>.
- MSBP. 2010. <i>Millennium Seed Bank Project. Seed Bank Database</i>. Royal Botanic Gardens, Kew.
- Govaerts, R., Wilkin, P., Raz, L. and Téllez-Valdés, O. 2016. World Checklist of Dioscoreaceae. Facilitated by the Royal Botanic Gardens, Kew. Available at: <a href="http://apps.kew.org/wcsp/">http://apps.kew.org/wcsp/</a>. (Accessed: 21 November 2016).
- 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.
- Victor, J.E. and Dold, A.P. 2004. <i>Dioscorea elephantipes</i> (L'Her.) Engl. National Assessment: Red List of South African Plants version 2015.1. Available at: <a href="http://redlist.sanbi.org/species.php?species=1777-12">http://redlist.sanbi.org/species.php?species=1777-12</a>. (Accessed: 11 November 2016).
- Archibald, E.E.A. 1967. The genus <i>Dioscorea</i> in the Cape Province west of East London. <i>Journal of South African Botany</i> 33(1): 1-46.
Évaluateurs & contributeurs (5)Personnes ayant contribué à l'évaluation IUCNExpert
assessor
Hills, R. & Wilkin, P.
contributor
von Staden, L.
evaluator
von Staden, L. & Leaman, D.J.
facilitators
Bachman, S.
institutions
Royal Botanic Gardens, Kew
Hills, R. & Wilkin, P. 2017. Dioscorea elephantipes. The IUCN Red List of Threatened Species 2017: e.T100890140A100890142. Accessed on 05 May 2026.
Distribution mondiale
Calcul de la distribution GBIF· ~10–60 s
Phénologie
Calcul du calendrier d'apparition· ~5–30 s
Consulter sur les bases externes
Observations & statuts
Cartographie
Note nomenclaturale & synonymesDétails taxonomiques + synonymes CoLExpert
Note nomenclaturale
TAXREF v18 — INPN/MNHNSynonymes (11)— redirigent vers cette page
- Dioscorea elephantopusSpreng.
- Dioscorea montana(Burch.) Spreng.
- Dioscorea testudinariaR.Knuth
- Rhizemys elephantipes(L'Hér.) Raf.
- Rhizemys montana(Burch.) Raf.
- Tamus elephantipesL'Hér.
- Testudinaria elephantipes(L'Hér.) Burch.
- Testudinaria elephantipesLindl.
- Testudinaria elephantipesSalisb.
- Testudinaria elephantipes f. montana(Burch.) G.D.Rowley
- Testudinaria montanaBurch.
Sources : Catalogue of Life Cross-References (synonymes) · TAXREF v18 INPN/MNHN (commentaires FR).