Cyanotis ganganensis
Schnell
Pays · région · aire protégée · écorégion · biome
Graphe en cours d’indexation
Calcul du tissu écologique de Cyanotis ganganensis.
Le graphe apparaîtra automatiquement dès que le calcul est terminé (rafraîchissement toutes les 5s).
Liste rouge IUCN
EN · En dangercritères B1ab(iii,iv)+2ab(iii,iv)↘Décroissante- Évaluation
- 2019 · v3.1
- Altitude
- 140 – 1000 m
- Profondeur
- – m
État de la populationTexte officiel évaluation IUCNExpert
No quantitative population data are available for this species. However, it has been recorded as 'mound-mat forming herb, several patches seen within 50 m, but not otherwise frequent' (M. Cheek pers. comm. 2016). It is known from six herbarium specimen collections dating from 1954 to 2016.
Menaces identifiées(4 menaces classées CMP-IUCN)
11_2DroughtsRapid DeclinesMajority (50-90%)Future2_1_2Small-holder farmingRapid DeclinesMinority (<50%)Ongoing2_3_1Nomadic grazingSlow, Significant DeclinesMinority (<50%)Ongoing3_2Mining & quarryingVery Rapid DeclinesMinority (<50%)Ongoing
Description complète des menacesTexte détaillé évaluation IUCNExpert
This species is threatened by grazing in the area around Kindia (C. Couch pers. obs. October 2017) and potentially through increased market gardening which converts areas of the flat sandstone bowal. In the future, climate change will be an issue for this species if the dry season length increases as this species depends on the seepage through the sandstone rocks for moisture. Bauxite extraction also threatens the habitat of this species.
Habitats préférentiels (classification IUCN)
6Rocky areas (eg. inland cliffs, mountain peaks)★
Mesures de conservation recommandéesStratégies de conservation IUCNExpert
Currently there are no conservation actions in place for this species. It does feature in the list of endemic species to Guinea in the National Monographie, but conservation status is not given. Part of the area it is found in at Kindia is within the boundary of the Classified Forest of Mt Gangan but this is officially not a protected area, however. More information is needed on population size and propagation. Monitoring of threats and population status is also required.
Actions de conservation (4)Conservation Actions Classification Scheme — IUCNExpert
1_1Site/area protection2_1Site/area management3_2Species recovery4_3Awareness & communications
Stress écologiques (9)Stresses Classification — IUCNExpert
1_1Ecosystem conversion1_1Ecosystem conversion1_2Ecosystem degradation1_2Ecosystem degradation1_2Ecosystem degradation2_1Species mortality2_1Species mortality2_1Species mortality2_1Species mortality
Priorités de recherche (5)Research Needed Classification — IUCNExpert
1_2Population size, distribution & trends1_5Threats2_1Species Action/Recovery Plan3_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 Herb
Références bibliographiques (4)Sources scientifiques de l'évaluation IUCNExpert
- IUCN. 2019. The IUCN Red List of Threatened Species. Version 2019-3. Available at: <a href="www.iucnredlist.org">www.iucnredlist.org</a>. (Accessed: 10 December 2019).
- Lisowski, S. 2009. <i>Flore (Angiospermes) de la République de Guinée</i>. Jardin Botanique National de Belgique, Meise.
- Morton, J.K. 1967. The Commelinaceae of West Africa. <i>Journal of the Linnean Society</i> 60(382): 167-221.
- Hutchinson, J. and Dalziel, J.M. 1966-1972. <i>Flora of West Tropical Africa</i>. Crown Agents For Over Sea Goverments And Admisnistrations, London.
Évaluateurs & contributeurs (4)Personnes ayant contribué à l'évaluation IUCNExpert
assessor
Couch, C.
contributor
Cheek, M., Joachim, M. & Lomer, R.
evaluator
Diop, F.N.
institutions
Royal Botanic Gardens, Kew
Couch, C. 2019. Cyanotis ganganensis. The IUCN Red List of Threatened Species 2019: e.T116123243A116123246. Accessed on 05 May 2026.
Distribution mondiale
Calcul de la distribution GBIF· ~10–60 s
Phénologie
Calcul du calendrier d'apparition· ~5–30 s