Brachycorythis basifoliata
Summerh.
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Calcul du tissu écologique de Brachycorythis basifoliata.
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Liste rouge IUCN
EN · En dangercritères B1ab(i,ii,iii,iv,v)+2ab(i,ii,iii,iv,v)↘Décroissante- Évaluation
- 2018 · v3.1
- Altitude
- 360 – 660 m
- Profondeur
- – m
État de la populationTexte officiel évaluation IUCNExpert
The species population is currently thought to decrease because the habitat of Brachycorythis basifoliata is currently facing clearance for urbanization and shifting agriculture. The number of individuals of the species is not known and cannot be estimated although the species is terrestrial.
Menaces identifiées(6 menaces classées CMP-IUCN)
1_1Housing & urban areasOngoing2_1_1Shifting agricultureOngoing2_1_2Small-holder farmingOngoing2_2_1Small-holder plantationsOngoing2_2_2Agro-industry plantationsOngoing5_3_3Unintentional effects: (subsistence/small scale) [harvest]Ongoing
Description complète des menacesTexte détaillé évaluation IUCNExpert
On São Tomé, the species is threatened by clearance for construction of houses and shifting agriculture for domestic uses. Also, the construction of an industrial palm oil plantation will threaten the species habitat. On Príncipe, 80% of the forest has been destroyed two centuries ago. Nowadays, almost all the vegetation located outside protected areas is threatened by shifting agriculture and selective logging.
Habitats préférentiels (classification IUCN)
1_6Forest - Subtropical/Tropical Moist Lowland1_9Forest - Subtropical/Tropical Moist Montane
Mesures de conservation recommandéesStratégies de conservation IUCNExpert
Brachycorythis basifoliata is rare with a restricted area of occupancy on the two islands. Its last collection was made in 1998. On São Tomé Island, the species occurs from unprotected areas. However on Príncipe, the species has been collected inside the Obò National Park.
Actions de conservation (6)Conservation Actions Classification Scheme — IUCNExpert
1_1Site/area protection1_2Resource & habitat protection3_4_1Captive breeding/artificial propagation3_4_2Genome resource bank4_1Formal education4_3Awareness & communications
Stress écologiques (23)Stresses Classification — IUCNExpert
1_1Ecosystem conversion1_1Ecosystem conversion1_2Ecosystem degradation1_2Ecosystem degradation1_2Ecosystem degradation1_2Ecosystem degradation1_2Ecosystem degradation1_2Ecosystem degradation2_1Species mortality2_2Species disturbance2_2Species disturbance2_2Species disturbance2_2Species disturbance2_2Species disturbance2_2Species disturbance2_3_4Loss of pollinator2_3_4Loss of pollinator2_3_7Reduced reproductive success2_3_7Reduced reproductive success2_3_7Reduced reproductive success2_3_7Reduced reproductive success2_3_7Reduced reproductive success2_3_7Reduced reproductive success
Priorités de recherche (6)Research Needed Classification — IUCNExpert
1_2Population size, distribution & trends1_3Life history & ecology1_5Threats2_2Area-based Management Plan3_1Population trends3_4Habitat trends
Niche IUCN globaleRealms · Systems · LMEs · Growth forms · FAOs — biogéographie IUCNExpert
Royaumes biogéographiques
Systèmes (terrestre/eau douce/marin)
Formes de croissance
Références bibliographiques (4)Sources scientifiques de l'évaluation IUCNExpert
- IUCN. 2018. The IUCN Red List of Threatened Species. Version 2018-1. Available at: <a href="www.iucnredlist.org">www.iucnredlist.org</a>. (Accessed: 28 June 2018).
- IUCN Standards and Petitions Subcommittee. 2016. Guidelines for Using the IUCN Red List Categories and Criteria. Version 12. Prepared by the Standards and Petitions Subcommittee. Available at: <a href="http://www.iucnredlist.org/documents/RedListGuidelines.pdf">http://www.iucnredlist.org/documents/RedListGuidelines.pdf</a>.
- Droissart, V. 2009. Etude taxonomique et biogéographique des plantes endémiques d’Afrique centrale atlantique: le cas des Orchidaceae. Laboratoire de Botanique systématique et de Phytosociologie, Université Libre de Bruxelles.
- Stévart, T. and de Oliveira, F. 2000. <i>Guide des orchidées de São Tomé et Príncipe</i>. ECOFAC, São Tomé.
Évaluateurs & contributeurs (2)Personnes ayant contribué à l'évaluation IUCNExpert
Simo-Droissart, M., Stévart, T. & Droissart, V. 2018. Brachycorythis basifoliata. The IUCN Red List of Threatened Species 2018: e.T87584030A87739902. Accessed on 05 May 2026.
Distribution mondiale
Phénologie
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