Cycad
Encephalartos aplanatusVorster
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Pays · région · aire protégée · écorégion · biome
Graphe en cours d’indexation
Calcul du tissu écologique de Encephalartos aplanatus.
Le graphe apparaîtra automatiquement dès que le calcul est terminé (rafraîchissement toutes les 5s).
Liste rouge IUCN
VU · Vulnérablecritères A2cd; B1ab(iii,v)+2ab(iii,v)↘Décroissante- Évaluation
- 2022 · v3.1
- Altitude
- 100 – 600 m
- Profondeur
- – m
État de la populationTexte officiel évaluation IUCNExpert
Initial estimates were of very small and rapidly declining populations in Eswatini but J. Hurter (pers. comm.) reported larger subpopulations of at least 2,000 plants in Mozambique.
Menaces identifiées(2 menaces classées CMP-IUCN)
5_2_1Intentional use (species is the target)UnknownUnknownOngoing8_1_1Unspecified speciesUnknownUnknownOngoing
Description complète des menacesTexte détaillé évaluation IUCNExpert
Encephalartos aplanatus is threatened due to the over-collecting of wild specimens, especially in the type locality in Eswatini. Concerns have been expressed about the loss of pollinators from remaining populations but this has not been verified. Beetle pollinators were collected as part of a genetic study published in 2008 (Downie et al. 2008) which indicated that E. aplanatus shares pollinator species with the nearby populations of E. villosus. Alien invasives at the type locality in Eswatini are also posing a threat to this population.
Habitats préférentiels (classification IUCN)
1_5Forest - Subtropical/Tropical Dry
Mesures de conservation recommandéesStratégies de conservation IUCNExpert
This species is listed in Appendix I of the CITES Appendices. There is a possibility that subpopulations may be found in the Mlawula Nature Reserve, Eswatini (based on the occurrence of a subpopulation near to the southern boundary of this reserve). Identification of suitable sites for the formal protection of this species is needed. An education and awareness programme as well as the long-term monitoring of subpopulations will support the conservation of this species.
Actions de conservation (5)Conservation Actions Classification Scheme — IUCNExpert
1_1Site/area protection2_1Site/area management3_4_1Captive breeding/artificial propagation3_4_2Genome resource bank4_3Awareness & communications
Stress écologiques (3)Stresses Classification — IUCNExpert
1_2Ecosystem degradation2_1Species mortality2_3_2Competition
Usage & commerce (2)Use & Trade — IUCNExpert
13Pets/display animals, horticultureinternationalnational16Establishing ex-situ production *national
Priorités de recherche (4)Research Needed Classification — IUCNExpert
1_2Population size, distribution & trends1_3Life history & ecology1_5Threats3_1Population trends
Niche IUCN globaleRealms · Systems · LMEs · Growth forms · FAOs — biogéographie IUCNExpert
Royaumes biogéographiques
Afrotropical
Systèmes (terrestre/eau douce/marin)
Terrestrial
Formes de croissance
CycadShrub - small
Références bibliographiques (4)Sources scientifiques de l'évaluation IUCNExpert
- IUCN. 2023. The IUCN Red List of Threatened Species. Version 2023-1. Available at: <a href="www.iucnredlist.org">www.iucnredlist.org</a>. (Accessed: 07 December 2023).
- IUCN. 2022. The IUCN Red List of Threatened Species. Version 2022-1. Available at: <a href="www.iucnredlist.org">www.iucnredlist.org</a>. (Accessed: 21 July 2022).
- Golding, J. (ed.). 2002. <i>Southern African Plant Red Data Lists</i>. Southern African Botanical Diversity Network.
- Vorster, P. 1996. Focus on <i>Encephalartos aplanatus</i>. <i>Encephalartos</i> 46: 4-8.
Évaluateurs & contributeurs (3)Personnes ayant contribué à l'évaluation IUCNExpert
assessor
Bösenberg, J.D.
contributor
Donaldson, J.S.
evaluator
Donaldson, J.S.
⚠ 1 erratum publié après l'évaluation.
Bösenberg, J.D. 2022. Encephalartos aplanatus (errata version published in 2023). The IUCN Red List of Threatened Species 2022: e.T41909A243422576. 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