Ontologia
Chimanimani Cycad

Chimanimani Cycad

Encephalartos chimanimaniensisR.A.Dyer & I.Verd.

ENLR Monde (IUCN)
1 photo · Licences CC (Wikimedia Commons / iNaturalist)Click pour agrandir
Pays · région · aire protégée · écorégion · biome

Graphe en cours d’indexation

Calcul du tissu écologique de Encephalartos chimanimaniensis.

Le graphe apparaîtra automatiquement dès que le calcul est terminé (rafraîchissement toutes les 5s).

Liste rouge IUCN

EN · En dangercritères B1ab(i,ii,iii,iv,v)+2ab(i,ii,iii,iv,v)Décroissante
Évaluation complète
Évaluation
2022 · v3.1
Altitude
6001000 m
Profondeur
m
État de la populationExpert
It was thought that it could be possibly be extinct in the wild due to the disappearance of the type population in Zimbabwe, but additional subpopulations were found along the Zimbabwe - Mozambique border. At the time of the 2003 assessment, these were estimated as between 500 and 1,000 plants. Capela (2006) estimated that there were 1,200 mature plants in a subpopulation at Makurupini and a further 300 at Morambo, as well as several other small subpopulations. There have been no recent accounts that provide any additional insights.

Menaces identifiées(4 menaces classées CMP-IUCN)

  • 1_1
    Housing & urban areas
    UnknownUnknownOngoing
  • 2_1_2
    Small-holder farming
    UnknownUnknownOngoing
  • 3_2
    Mining & quarrying
    UnknownUnknownOngoing
  • 5_2_1
    Intentional use (species is the target)
    Slow, Significant DeclinesMajority (50-90%)Ongoing
Description complète des menacesExpert
This species is threatened due to over-collecting for ornamental purposes. Habitat destruction is also occurring due to the expansion of farming activities, as a result of the human population increase, and illegal settlements. Illegal mining activities are also rampant in the Chimanimani mountains (T. Nyamucherera pers. comm.).

Habitats préférentiels (classification IUCN)

  • 4_6Grassland - Subtropical/Tropical Seasonally Wet/Flooded
Mesures de conservation recommandéesExpert
This species is listed in Appendix I of the CITES Appendices. Subpopulations are possibly in the Chimanimani National Reserve, Mozambique. 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 (4)Expert
  • 1_1Site/area protection
  • 1_2Resource & habitat protection
  • 3_4_1Captive breeding/artificial propagation
  • 4_3Awareness & communications
Stress écologiques (5)Expert
  • 1_1Ecosystem conversion
  • 1_1Ecosystem conversion
  • 1_2Ecosystem degradation
  • 1_2Ecosystem degradation
  • 2_1Species mortality
Usage & commerce (2)Expert
  • 13Pets/display animals, horticulture
    internationalnational
  • 16Establishing ex-situ production *
    national
Priorités de recherche (4)Expert
  • 1_1Taxonomy
  • 1_2Population size, distribution & trends
  • 1_3Life history & ecology
  • 3_1Population trends
Niche IUCN globaleExpert

Royaumes biogéographiques

Afrotropical

Systèmes (terrestre/eau douce/marin)

Terrestrial

Formes de croissance

CycadTree - small
Références bibliographiques (5)Expert
  1. 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).
  2. 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).
  3. Capela, P. 2006. <i>Speculations on the </i>Encephalartos species<i> of Mozambique</i>. Pedro Capela, Chimoio, Mozambique.
  4. Jones, D.L. 2002. <i>Cycads of the World</i>. Smithsonian Institution Press, Washington, DC.
  5. Golding, J. (ed.). 2002. <i>Southern African Plant Red Data Lists</i>. Southern African Botanical Diversity Network.
Évaluateurs & contributeurs (3)Expert
assessor
Bösenberg, J.D.
contributor
Donaldson, J.S. & Nyamucherera, T.
evaluator
Donaldson, J.S.
1 erratum publié après l'évaluation.

Bösenberg, J.D. 2022. Encephalartos chimanimaniensis (errata version published in 2023). The IUCN Red List of Threatened Species 2022: e.T41902A243424701. Accessed on 05 May 2026.

Répartition mondiale (heatmap GBIF)Construction en cours

0 obs · 0 cellules
Construction par partitions temporelles GBIF0%

Source : GBIF — observations agrégées par hexagones 0.2° × 0.2° (~22km). Filtre qualité : précision coordonnée < 10 km. Coloration quantile (q50/70/90/99). Fond carte : OpenFreeMap · © OpenStreetMap.

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

Bibliographie