Angraecum rhynchoglossum

Schltr.

Plante

ENLR Monde (IUCN)

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

Pas d'interactions documentées pour cette espèce.

Liste rouge IUCN

EN · En dangercritères A4c↘Décroissante

Évaluation complète

Évaluation: 2025 · v3.1
Altitude: 15 – 1544 m
Profondeur: – m

État de la populationTexte officiel évaluation IUCNExpert

The population of Angraecum rhynchoglossum is currently thought to be decreasing since its habitat is threatened by forest clearing due to mining activities, forest degradation by illegal logging, timber harvesting for small-scale subsistence use, and slash-and-burn agricultural practices (tavy). The number of individuals of A. rhynchoglossum is not known and cannot be estimated since the species is an epiphyte on the trunk or branches of trees in humid, subhumid forests, and mossy shrubland.

Menaces identifiées(4 menaces classées CMP-IUCN)

2_3_1
Nomadic grazing
Slow, Significant DeclinesMinority (<50%)Ongoing
5_3_3
Unintentional effects: (subsistence/small scale) [harvest]
Slow, Significant DeclinesMinority (<50%)Ongoing
2_1_1
Shifting agriculture
Very Rapid DeclinesMajority (50-90%)Ongoing
3_2
Mining & quarrying
Very Rapid DeclinesMinority (<50%)Ongoing

Description complète des menacesTexte détaillé évaluation IUCNExpert

Angraecum rhynchoglossum is threatened by intense human pressure such as forest degradation ( slash-and-burn agricultural practices (tavy), selective logging, timber harvesting for small-scale subsistence, and fire for grazing), forest clearing (mining activities).

Habitats préférentiels (classification IUCN)

1_6Forest - Subtropical/Tropical Moist Lowland★

Mesures de conservation recommandéesStratégies de conservation IUCNExpert

Twelve occurrences of the species are situated within four protected areas: Analamazaotra National Park, Natural Resources Reserve of the Ankeniheny-Zahamena Corridor (Vohibe-Ambalabe), and Pointe à Larrée Special Reserve. The species is also currently placed in Appendix II of CITES. Ex situ conservation is recommended (micro-propagation, and living collections). A. rhynchoglossum should be included in the list of Malagasy protected species. Further awareness building is recommended for local communities and national authorities.

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

Stress écologiques (12)Stresses Classification — IUCNExpert

1_1Ecosystem conversion
1_2Ecosystem degradation
1_2Ecosystem degradation
1_2Ecosystem degradation
1_2Ecosystem degradation
2_1Species mortality
2_1Species mortality
2_1Species mortality
2_1Species mortality
2_2Species disturbance
2_2Species disturbance
2_2Species disturbance

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 (7)Sources scientifiques de l'évaluation IUCNExpert

IUCN. 2025. The IUCN Red List of Threatened Species. Version 2025-1. Available at: <a href="www.iucnredlist.org">www.iucnredlist.org</a>. (Accessed: 27 March 2025).
IUCN Standards and Petitions Committee. 2022. Guidelines for Using the IUCN Red List Categories and Criteria. Version 15. Prepared by the Standards and Petitions Committee. Available at: <a href="https://nc.iucnredlist.org/redlist/content/attachment_files/RedListGuidelines.pdf">https://nc.iucnredlist.org/redlist/content/attachment_files/RedListGuidelines.pdf</a>.
GeoCAT. 2022. Geospatial conservation assessment tool (GeoCAT). Available at: <a href="http://geocat.kew.org">http://geocat.kew.org</a>.
Madagascar Catalogue. 2022. Angraecum rhynchoglossum Schltr. St. Louis, U.S.A. and Antananarivo, Madagascar. Missouri Botanical Garden. Available at: <a href="http://legacy.tropicos.org/Name/23502670?projectid=17">http://legacy.tropicos.org/Name/23502670?projectid=17</a>. (Accessed: 2022).
Cribb, P. and Hermans, J. 2009. Field Guide to the Orchids of Madagascar. Royal Botanic Gardens, Kew.
Hermans, J., Hermans, C., Du Puy, D., Cribb, P. and Bosser, J. 2007. Orchids of Madagascar. Royal Botanic Gardens, Kew.
Du Puy, D., Hermans, J and Hermans, C. 1999. The Orchids of Madagascar. Royal Botanic Gardens, Kew.

Évaluateurs & contributeurs (4)Personnes ayant contribué à l'évaluation IUCNExpert

assessor

Ravololomanana, N., Ramandimbisoa, B., Andriambololonera, S., Andriamahefarivo, L., Droissart, V., Rabarimanarivo, M. & Stévart, T.

contributor

Verlynde, S.

evaluator

Rakotoarinivo, M., Rakotonasolo, F., Manjato, N. & Razafindrahaja, V.

institutions

Missouri Botanical Garden & Royal Botanic Gardens, Kew

Ravololomanana, N., Ramandimbisoa, B., Andriambololonera, S., Andriamahefarivo, L., Droissart, V., Rabarimanarivo, M. & Stévart, T. 2025. Angraecum rhynchoglossum. The IUCN Red List of Threatened Species 2025: e.T70102144A70165632. Accessed on 05 May 2026.