Encephalartos equatorialis

P.J.H.Hurter

Plante

CRLR Monde (IUCN)

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Filtrer le graphe par contexte spatialPays · région · aire protégée · écorégion · biome

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Calcul du tissu écologique de Encephalartos equatorialis.

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Liste rouge IUCN

CR · En danger critiquecritères B1ab(iii,v)+2ab(iii,v)↘Décroissante

Évaluation complète

Évaluation: 2024 · v3.1
Altitude: 950 – 1050 m
Profondeur: – m

État de la populationTexte officiel évaluation IUCNExpert

There is some confusion over the number of mature plants remaining in the wild. Goode (2001) mentioned that there are up to 300 plants and that the population was dominated by male plants. Kalema and Mucunguzi in 2009 (unpublished) estimated 400 plants after including a small subpopulation on another little known hill in the vicinity. In contrast, Kamoga (unpublished report) conducted population surveys as part of a Darwin Initiative project and recorded a total population size of only 79 mature individuals. The discrepancy between the two reports is likely due to different methods of counting, where some surveys may count all stems as individual plants whereas others count multiple stems as a single plant if the stems appear to arise from the same rootstock. Reports indicate that only about 5% of the population is female (H. Beentje pers. comm.)

Menaces identifiées(5 menaces classées CMP-IUCN)

2_1_2
Small-holder farming
Slow, Significant DeclinesMajority (50-90%)Ongoing
5_2_1
Intentional use (species is the target)
Slow, Significant DeclinesWhole (>90%)Ongoing
2_2_3
Scale Unknown/Unrecorded
Ongoing
2_3_4
Scale Unknown/Unrecorded
Ongoing
7_1_1
Increase in fire frequency/intensity
Ongoing

Description complète des menacesTexte détaillé évaluation IUCNExpert

No young plants or seedlings were seen and this could indicate that the pollinator could be extinct or that fires occur too frequently. Burning is one of the major threats to the cycad according to Kalema and Mucunguzi's unpublished data. The species only persists through the copious formation of basal suckers. There is also evidence of collector activity, and the surrounding area is entirely used for agriculture. An adjacent pine/Eucalyptus plantation is a potential threat to one subpopulation as well.

Habitats préférentiels (classification IUCN)

1_6Forest - Subtropical/Tropical Moist Lowland
6Rocky areas (eg. inland cliffs, mountain peaks)

Mesures de conservation recommandéesStratégies de conservation IUCNExpert

This species is listed in Appendix I of CITES. A Darwin Initiative project implemented through Royal Botanic Gardens, Kew, undertook several field visits during the period 2014-2018 as part of a project to improve seed production as an aid to conservation. These studies confirmed the absence of pollinators. The IUCN/SSC Cycad Specialist Group has also been working with organisations such as the Rainforest Trust to secure land for conservation. This species does not occur any protected area. Kalema and Beentje (2012) assessed it as Critically Endangered.

Actions de conservation (2)Conservation Actions Classification Scheme — IUCNExpert

1_1Site/area protection
4_3Awareness & communications

Stress écologiques (8)Stresses Classification — IUCNExpert

1_1Ecosystem conversion
1_1Ecosystem conversion
1_2Ecosystem degradation
1_2Ecosystem degradation
1_2Ecosystem degradation
2_1Species mortality
2_3_6Skewed sex ratios
2_3_8Other

Usage & commerce (1)Use & Trade — IUCNExpert

13Pets/display animals, horticulture
internationalnational

Priorités de recherche (3)Research Needed Classification — IUCNExpert

1_3Life history & ecology
1_6Actions
3_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 (7)Sources scientifiques de l'évaluation IUCNExpert

Kamoga, D. unpublished. Protecting Ugandan endemic cycads from biodiversity loss and trafficking. Darwin Initiative.
IUCN. 2024. The IUCN Red List of Threatened Species. Version 2024-1. Available at: <a href="www.iucnredlist.org">www.iucnredlist.org</a>. (Accessed: 27 June 2024).
Kalema, J. and Beentje, H.J. 2012. Conservation Checklist of the Trees of Uganda. Royal Botanic Gardens, Kew, Richmond.
Goode, D. 2001. Cycads of Africa. D & E Cycads of Africa, Gallo Manor, Johannesburg, South Africa.
Vorster, P. and Heibloem, P. 1995. Encephalartos imbricans (Zamiaceae): A new species from Uganda. Novon 5: 388-394.
Hurter, J., Glen, H. and Claassen, I. 1995. Focus on Encephalartos equatorialis. Encephalartos 44: 4-9.
Hurter, P.J.H. and Glen, H.F. 1995. Encephalartos equatorialis (Zamiaceae): a newly described species from tropical Africa. South African Journal of Botany 61(4): 226-229.

Évaluateurs & contributeurs (3)Personnes ayant contribué à l'évaluation IUCNExpert

assessor

Kalema, J. & Beentje, H.J.

contributor

Donaldson, J.S.

evaluator

Bösenberg, J.D.

Kalema, J. & Beentje, H.J. 2024. Encephalartos equatorialis. The IUCN Red List of Threatened Species 2024: e.T41887A50906141. Accessed on 05 May 2026.