Kaapsehoop Cycad
Encephalartos laevifoliusStapf & Burtt Davy
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 laevifolius.
Le graphe apparaîtra automatiquement dès que le calcul est terminé (rafraîchissement toutes les 5s).
Liste rouge IUCN
CR · En danger critiquecritères A2acde; C1+2a(i,ii); D↘Décroissante- Évaluation
- 2022 · v3.1
- Altitude
- 950 – 1800 m
- Profondeur
- – m
État de la populationTexte officiel évaluation IUCNExpert
Available data suggest that there are fewer than 50 plants remaining in the wild and possibly even less than that. The population originally consisted of a relatively large subpopulation in the Kaapsehoop area (early estimates of 1,700 plants) with smaller subpopulations occurring at Mariepskop (75 stems counted in 1970), Eswatini (25 plants) and KwaZulu Natal. Population surveys in 1990 (K. Zunckel MSc) counted 578 plants at Kaapsehoop, 182 on nearby farms and only 55 stems at Mariepskop. Zunckel (1990) estimated that poaching was resulting in the loss of one plant a month at the more accessible sites. By 2016, it was estimated that the population had declined by 97% due to poaching to supply the horticultural trade and private collections (Scientific Authority 2016). The subpopulations in KwaZulu Natal, Eswatini and Mariepskop had by then all been extirpated. Surveys underway in 2020-2021 detected only a single plant in the Kaapsehoop area (W. van Staden pers. comm.) and there is one other known site with 5-10 mature plants. Given the extremely low numbers and wide separation of the surviving plants, it should be regarded as functionally extinct in the Wild.
Menaces identifiées(4 menaces classées CMP-IUCN)
2_2_2Agro-industry plantationsNegligible declinesMajority (50-90%)Ongoing8_1_1Unspecified speciesSlow, Significant DeclinesMajority (50-90%)Ongoing5_2_1Intentional use (species is the target)Very Rapid DeclinesWhole (>90%)Ongoing8_2_1Unspecified speciesOngoing
Description complète des menacesTexte détaillé évaluation IUCNExpert
The most drastic effect has been by over-collecting for ornamental purposes and this is responsible for >97% decline since the 1970s. Signs of stem harvesting for traditional medicine have been observed although this has not been quantified. Evidence of plant pathogens have been reported since the 1980s with the infection occurring in female cones and resulting in abortion of cones. There is a limited threat associated with habitat loss due to timber plantations and alien invasive plants.
Habitats préférentiels (classification IUCN)
3_5Shrubland - Subtropical/Tropical Dry4_5Grassland - Subtropical/Tropical Dry6Rocky areas (eg. inland cliffs, mountain peaks)
Mesures de conservation recommandéesStratégies de conservation IUCNExpert
This species is listed in Appendix I of the CITES Appendices. Subpopulations used to occur in three protected areas: Starvation Creek Nature Reserve and the Blyde Rivierpoort Reseave in South Africa; Malolotja Reserve in Eswatini. The most critical conservation measure now is to secure genetically representative material in assurance colonies to provide genetic material for possible recovery and reintroduction.
Actions de conservation (4)Conservation Actions Classification Scheme — IUCNExpert
1_1Site/area protection1_2Resource & habitat protection3_2Species recovery4_3Awareness & communications
Stress écologiques (6)Stresses Classification — IUCNExpert
1_1Ecosystem conversion1_2Ecosystem degradation1_2Ecosystem degradation2_1Species mortality2_1Species mortality2_3_7Reduced reproductive success
Usage & commerce (2)Use & Trade — IUCNExpert
13Pets/display animals, horticultureinternationalnationalsubsistance3Medicine - human & veterinarysubsistance
Priorités de recherche (3)Research Needed Classification — IUCNExpert
1_2Population size, distribution & trends1_3Life history & ecology3_1Population trends
Niche IUCN globaleRealms · Systems · LMEs · Growth forms · FAOs — biogéographie IUCNExpert
Royaumes biogéographiques
Afrotropical
Systèmes (terrestre/eau douce/marin)
Terrestrial
Formes de croissance
CycadTree - large
Références bibliographiques (10)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).
- Government Gazette. 2016. Biodiversity Management Plan for 11 Critically Endangered and 4 Endangered <i>Encephalartos</i> species. <i>Government Gazette</i> 40793.
- Scientific Authority. 2016. <i>Non-Detriment Findings</i>. Government Gazette, Department of Environmental Affairs.
- Scientific Authority. 2013. <i>National Environmental Management: Biodiversity Act (10/2004): Non-detriment findings</i>. Government Printer, Pretoria.
- Grobbelaar, N. 2002. <i>CYCADS - with special reference to the southern African species</i>. Privately published by Nat Grobbelaar, Pretoria, South Africa.
- Emery, A.J., Lötter, M. and Williamson, S.D. 2002. Determining the conservation value of land in Mpumalanga. Available at: <a href="http://www.dwaf.gov.za/sfra/SEA/usutu-mhlathuze%20wma/Biophysical%20Component/Mpumalanga%20Biobase.pdf">http://www.dwaf.gov.za/sfra/SEA/usutu-mhlathuze%20wma/Biophysical%20Component/Mpumalanga%20Biobase.pdf</a>.
- Scott-Shaw, C.R. 1999. <i>Rare and Threatened Plants of KwaZulu-Natal and Neighbouring Regions</i>. KwaZulu-Natal Nature Conservation Services, Pietermaritzburg.
- Zunckel, K. 1990. The ecology and management of the Kaapsehoop cycad (<i>Encephalartos laevifolius</i> Stapf and Burtt Davy). University of Cape Town. University of Cape Town.
- Osborne, R. 1989. Focus on <i>Encephalartos laevifolius</i>. <i>Encephalartos</i> 19: 2-8.
Évaluateurs & contributeurs (3)Personnes ayant contribué à l'évaluation IUCNExpert
assessor
Bösenberg, J.D.
contributor
Steyn, T., Rodgers, S. & Donaldson, J.S.
evaluator
Donaldson, J.S.
⚠ 1 erratum publié après l'évaluation.
Bösenberg, J.D. 2022. Encephalartos laevifolius (errata version published in 2023). The IUCN Red List of Threatened Species 2022: e.T41891A243427920. 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