Angraecum letouzeyi

Bosser

Plante

ENLR Monde (IUCN)

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

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Calcul du tissu écologique de Angraecum letouzeyi.

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Liste rouge IUCN

EN · En dangercritères A4c↘Décroissante

Évaluation complète

Évaluation: 2021 · v3.1
Altitude: 953 – 1550 m
Profondeur: – m

État de la populationTexte officiel évaluation IUCNExpert

The population of Angraecum letouzeyi is currently thought to be decreasing since the species habitat is threatened. The number of mature individuals of A. letouzeyi is not known and it is difficult to estimate because the species is epiphyte.

Menaces identifiées(3 menaces classées CMP-IUCN)

2_1_1
Shifting agriculture
Rapid DeclinesMinority (<50%)Ongoing
5_3_3
Unintentional effects: (subsistence/small scale) [harvest]
Rapid DeclinesMinority (<50%)Ongoing
3_2
Mining & quarrying
Very Rapid DeclinesMinority (<50%)Ongoing

Description complète des menacesTexte détaillé évaluation IUCNExpert

This species experiences continuing decline in extent of occurrence (EOO), area of occupancy (AOO), habitat quality, number of locations and number of mature individuals because of habitat destruction due to forest exploitation, mining and shifting cultivation. Three subpopulations are known from an unprotected forest subjected to selective logging, timber harvesting for small-scale subsistence and tavy (slash-and-burn farming).

Habitats préférentiels (classification IUCN)

1_9Forest - Subtropical/Tropical Moist Montane

Mesures de conservation recommandéesStratégies de conservation IUCNExpert

Four collections of this species have been made in four protected areas, the Mantadia National Park, the Analamazaotra National Park, the Torotorofotsy Protected Area and the Ambohitantely Special Reserve. The species is listed in the Appendix II of the CITES. Individuals of this species have been brought to cultivation in the Ambatovy shade house.

Actions de conservation (8)Conservation Actions Classification Scheme — IUCNExpert

1_1Site/area protection
1_2Resource & habitat protection
2_1Site/area management
3_2Species recovery
3_4_1Captive breeding/artificial propagation
3_4_2Genome resource bank
4_1Formal education
4_3Awareness & communications

Usage & commerce (1)Use & Trade — IUCNExpert

18Unknown

Priorités de recherche (6)Research Needed Classification — IUCNExpert

1_2Population size, distribution & trends
1_5Threats
1_6Actions
2_1Species Action/Recovery Plan
3_1Population trends
3_4Habitat trends

Niche IUCN globaleRealms · Systems · LMEs · Growth forms · FAOs — biogéographie IUCNExpert

Royaumes biogéographiques

Afrotropical

Systèmes (terrestre/eau douce/marin)

Terrestrial

Formes de croissance

EpiphyteForb or Herb

Références bibliographiques (8)Sources scientifiques de l'évaluation IUCNExpert

IUCN. 2021. The IUCN Red List of Threatened Species. Version 2021-1. Available at: <a href="www.iucnredlist.org">www.iucnredlist.org</a>. (Accessed: 25 March 2021).
Madagascar Catalogue. 2020. Angraecum letouzeyi Bosser. St Louis, U.S.A. and Antananarivo, Madagascar Available at: <a href="http://legacy.tropicos.org/Name/50037106?projectid=17">http://legacy.tropicos.org/Name/50037106?projectid=17</a>.
Madagascar Catalogue. 2020. Angraecum letouzeyi Bosser. St Louis, U.S.A. and Antananarivo, Madagascar Available at: <a href="http://legacy.tropicos.org/Name/50037106?projectid=17">http://legacy.tropicos.org/Name/50037106?projectid=17</a>.
IUCN Standards and Petitions Committee. 2019. Guidelines for Using the IUCN Red List Categories and Criteria. Version 14. 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>.
MNHN - Museum national d'Histoire naturelle. 2019. The vascular plants collection (P) at the Herbarium of the Muséum national d'Histoire Naturelle (MNHN - Paris). Version 69.106. Occurrence dataset. Available at: <a href="https://doi.org/10.15468/nc6rxy">https://doi.org/10.15468/nc6rxy</a>. (Accessed: 05/03/19).
Bachman, S. and Moat, J. 2012. GeoCAT – an open source tool for rapid Red List assessments. BGCI 9(1).
Philip, C. and Hermans J. 2009. Field Guide to the Orchids of Madagascar. Kew Publishing, Royal Botanic Gardens, Kew.
Hermans, J., Hermans, C., Du Puy, D., Cribb, P. and Bosser, J. 2007. Orchids of Madagascar. Royal Botanic Gardens, Kew.

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

assessor

Rajaovelona, L.R., Ramandimbisoa, B., Andriamahefarivo, L., Verlynde, S., Stévart, T. & Droissart, V.

contributor

Razafindramanana, J., Andriatsiferana, F. & Rajaonarivelo, N.

evaluator

Letsara, R., Rakotonasolo, F. & Razafindrahaja, V.

Rajaovelona, L.R., Ramandimbisoa, B., Andriamahefarivo, L., Verlynde, S., Stévart, T. & Droissart, V. 2021. Angraecum letouzeyi. The IUCN Red List of Threatened Species 2021: e.T64594125A64619200. Accessed on 05 May 2026.