Afrothismia winkleri
(Engl.) Schltr.
Pays · région · aire protégée · écorégion · biome
Graphe en cours d’indexation
Calcul du tissu écologique de Afrothismia winkleri.
Le graphe apparaîtra automatiquement dès que le calcul est terminé (rafraîchissement toutes les 5s).
Liste rouge IUCN
EN · En dangercritères B1ab(iii)+2ab(iii)?Inconnue- Évaluation
- 2024 · v3.1
- Altitude
- 0 – 1200 m
- Profondeur
- – m
État de la populationTexte officiel évaluation IUCNExpert
The population size is not known. However, as is usual in this family, numbers in each site are thought to be very low. One herbarium record noted that only 16 individuals could be found along a trail near Nyasoso (Cable # 2830 (K)). One paper noted the species to be 'fairly common' on the western slopes of Mount Kupe, compared to the description of Epipogium roseum as 'common' and Burmannia congesta (now considered a synonym of Campylosiphon congestus) as 'rare' (Franke 2004). Three historic localities are thought to have been lost, but it is not known what effect this had on the overall population size and it is not known if declines are continuing.
Menaces identifiées(5 menaces classées CMP-IUCN)
11_1Habitat shifting & alterationRapid DeclinesWhole (>90%)Future2_1_2Small-holder farmingUnknownMajority (50-90%)Ongoing2_2_2Agro-industry plantationsUnknownMajority (50-90%)Ongoing5_3_3Unintentional effects: (subsistence/small scale) [harvest]Ongoing5_3_4Unintentional effects: (large scale) [harvest]Ongoing
Description complète des menacesTexte détaillé évaluation IUCNExpert
The main threat to the species is forest clearance for agriculture, timber and plantations. The type locality has been destroyed due to extensive palm and banana plantations (Sainge et al. 2017) and the second locality on Mount Cameroon has also been destroyed by oil palm plantations and chop farms (Onana and Cheek 2011). The remaining localities around Mount Kupe are primarily threatened by small-holder agriculture encroachment from nearby settlements, as all of these localities are currently unprotected (M. Cheek pers. comm. 2024). Climate change has been proposed as a potential major future threat to Afrothismia species due to the potential of small changes in climate to dramatically restrict distributional extent, as these species are typically confined to isolated patches and have restricted and fine-tuned phenology (Sainge et al. 2017).
Habitats préférentiels (classification IUCN)
1_6Forest - Subtropical/Tropical Moist Lowland★
Mesures de conservation recommandéesStratégies de conservation IUCNExpert
Several localities of the species occur within the proposed area of the Mont Kupe Strict Nature Reserve in Cameroon, but are not currently under any protection, and one locality occurs within the Mont Fouari Wildlife Reserve (UNEP-WCMC and IUCN 2024). Given the threat of habitat loss and the extirpation of several historic localities, establishing ex situ conservation should be prioritised in the immediate future.
Actions de conservation (5)Conservation Actions Classification Scheme — IUCNExpert
1_1Site/area protection1_2Resource & habitat protection2_1Site/area management3_4_1Captive breeding/artificial propagation3_4_2Genome resource bank
Stress écologiques (13)Stresses Classification — IUCNExpert
1_1Ecosystem conversion1_1Ecosystem conversion1_2Ecosystem degradation1_2Ecosystem degradation1_2Ecosystem degradation1_2Ecosystem degradation1_2Ecosystem degradation1_3Indirect ecosystem effects2_1Species mortality2_1Species mortality2_2Species disturbance2_2Species disturbance2_2Species disturbance
Priorités de recherche (4)Research Needed Classification — IUCNExpert
1_2Population size, distribution & trends1_3Life history & ecology3_1Population trends3_4Habitat trends
Niche IUCN globaleRealms · Systems · LMEs · Growth forms · FAOs — biogéographie IUCNExpert
Royaumes biogéographiques
Afrotropical
Systèmes (terrestre/eau douce/marin)
Terrestrial
Formes de croissance
Forb or HerbParasite
Références bibliographiques (8)Sources scientifiques de l'évaluation IUCNExpert
- UNEP-WCMC and IUCN. 2024. Protected Planet: The World Database on Protected Areas (WDPA) and World Database on Other Effective Area-based Conservation Measures (WD-OECM) [Online]. Cambridge, UK. UNEP-WCMC and IUCN. Available at: <a href="https://www.protectedplanet.net">https://www.protectedplanet.net</a>. (Accessed: 2024).
- IUCN. 2024. The IUCN Red List of Threatened Species. Version 2024-2. Available at: <a href="www.iucnredlist.org">www.iucnredlist.org</a>. (Accessed: 28 October 2024).
- Cheek, M., Gereau, R.E. and Kalema, J. 2024. <i>Afrothismia ugandensis</i> nom. nov. (Afrothismiaceae), Critically Endangered and endemic to Budongo Central Forest Reserve, Uganda. <i>Kew Bulletin</i>: DOI: 10.1007/s12225-024-10212-5.
- BGCI. 2024. Botanic Gardens Conservation International (BGCI) - PlantSearch. Available at: <a href="https://tools.bgci.org/plant_search.php">https://tools.bgci.org/plant_search.php</a>. (Accessed: 2024).
- Sainge, M.N., Chuyong, G.B. and Peterson, A.T. 2017. Endemism and geographic distribution of African Thismiaceae. <i>Plant Ecology and Evolution</i> 150(3): 304-312.
- 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: Smith, B. and Peneb, L. (eds), <i>e-Infrastructure for data publishing in biodiversity science</i>, pp. 117-126. Zoo Keys, 150.
- Onana, J.-M. and Cheek, M. (eds). 2011. <i>Red Data Book of the Flowering Plants of Cameroon: IUCN Global Assessments</i>. Kew Publishing, Royal Botanic Gardens, Kew.
- Franke, T. 2004. <i>Afrothismia saingei</i> (Burmanniaceae, Thismieae), a new myco-heterotrophic plant from Cameroon. <i>Systematics and Geography of Plants</i> 74(1): 27-33.
Évaluateurs & contributeurs (5)Personnes ayant contribué à l'évaluation IUCNExpert
assessor
Bevan, H.
contributor
Cheek, M.
evaluator
Onana, J.-M.
facilitators
Wheatcroft, H.
institutions
Royal Botanic Gardens, Kew
Bevan, H. 2024. Afrothismia winkleri. The IUCN Red List of Threatened Species 2024: e.T47348105A265025353. 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 (1)— redirigent vers cette page
- Thismia winkleriEngl.
Sources : Catalogue of Life Cross-References (synonymes) · TAXREF v18 INPN/MNHN (commentaires FR).