Costus giganteus
Welw. ex Ridl.
Pays · région · aire protégée · écorégion · biome
Graphe en cours d’indexation
Calcul du tissu écologique de Costus giganteus.
Le graphe apparaîtra automatiquement dès que le calcul est terminé (rafraîchissement toutes les 5s).
Liste rouge IUCN
LC · Préoccupation mineure→Stable- Évaluation
- 2013 · v3.1
- Altitude
- 100 – 1500 m
- Profondeur
- – m
État de la populationTexte officiel évaluation IUCNExpert
Costus giganteus is very common in São Tomé (T. Stévart pers. comm. August 2008, de Oliveira pers. comm.).
Description complète des menacesTexte détaillé évaluation IUCNExpert
The islands have suffered as a result of coffee, cocoa, banana, coconut and sugarcane plantations which have replaced large areas of the natural humid forests (Excell 1944). On Principe, large areas of forest were destroyed during a campaign to eradicate sleeping sickness (African tripanosomiasis) in 1906. The deforestation had led to soil erosion, which is a growing concern. There is currently estimated to be 40 km2 of primary forest on Príncipe, and 240 km2 on São Tomé (Gascoigne 2001). However, many endemic species have adapted to the shade forest found around plantations, which are used to protect the crops. Although some of the forest areas have been heavily damaged in the past, there is significant regeneration to secondary forest in many areas.
Habitats préférentiels (classification IUCN)
1_6Forest - Subtropical/Tropical Moist Lowland1_9Forest - Subtropical/Tropical Moist Montane
Mesures de conservation recommandéesStratégies de conservation IUCNExpert
There are no known conservation measures specifically for this species, but it is known to occur in a protected area: Obo National Park (São Tomé Island).
Actions de conservation (1)Conservation Actions Classification Scheme — IUCNExpert
2_1Site/area management
Usage & commerce (1)Use & Trade — IUCNExpert
3Medicine - human & veterinarynationalsubsistance
Priorités de recherche (3)Research Needed Classification — IUCNExpert
1_2Population size, distribution & trends1_5Threats3_1Population trends
Niche IUCN globaleRealms · Systems · LMEs · Growth forms · FAOs — biogéographie IUCNExpert
Royaumes biogéographiques
Afrotropical
Systèmes (terrestre/eau douce/marin)
Terrestrial
Formes de croissance
Geophyte
Références bibliographiques (4)Sources scientifiques de l'évaluation IUCNExpert
- IUCN. 2013. IUCN Red List of Threatened Species (ver. 2013.1). Available at: <a href="http://www.iucnredlist.org">http://www.iucnredlist.org</a>. (Accessed: 12 June 2013).
- Ministry of Natural Resources and Environment. 2007. National report on the status of biodiversity in S.Tome and Principe. Ministry for natural resources and the environment directorate general for environment.
- Gascoigne, A. 2001. Sao Tome, Principe and Annobon moist lowland forests (AT0127). WWF Ecoregion. Available at: <a href="http://www.worldwildlife.org/wildworld/profiles/terrestrial/at/at0127_full.html">http://www.worldwildlife.org/wildworld/profiles/terrestrial/at/at0127_full.html</a>. (Accessed: 2009).
- Exell, A.W. 1944. <i>Catalogue of the Vascular Plants of S. Tome (with Principe and Annobon)</i>. Printed by order of the Trustees of the British Museum, London.
Évaluateurs & contributeurs (2)Personnes ayant contribué à l'évaluation IUCNExpert
assessor
Contu, S.
evaluator
Scott, J.A.
Contu, S. 2013. Costus giganteus. The IUCN Red List of Threatened Species 2013: e.T44392374A44469790. Accessed on 05 May 2026.
Distribution mondiale
Calcul de la distribution GBIF· ~10–60 s
Phénologie
Calcul du calendrier d'apparition· ~5–30 s