Ambrella longituba
H.Perrier
Pays · région · aire protégée · écorégion · biome
Pas d'interactions documentées pour cette espèce.
Liste rouge IUCN
CR · En danger critiquecritères D↘Décroissante- Évaluation
- 2024 · v3.1
- Altitude
- 500 – 1000 m
- Profondeur
- – m
État de la populationTexte officiel évaluation IUCNExpert
The population of Ambrella longituba is currently thought to be decreasing since its habitat is threatened by habitat degradation due to illegal agricultural activities, forest cutting and fire related to Cannabis cultivation. The number of mature individuals of the species is estimated to be less than 50 (J. Hermans pers. comm. 2022).
Menaces identifiées(5 menaces classées CMP-IUCN)
2_3_1Nomadic grazingNegligible declinesWhole (>90%)Ongoing7_1_1Increase in fire frequency/intensityNegligible declinesUnknownOngoing5_2_1Intentional use (species is the target)UnknownWhole (>90%)Ongoing2_1_2Small-holder farmingSlow, Significant DeclinesWhole (>90%)Ongoing5_3_3Unintentional effects: (subsistence/small scale) [harvest]Slow, Significant DeclinesWhole (>90%)Ongoing
Description complète des menacesTexte détaillé évaluation IUCNExpert
The habitat of the species is threatened by forest degradation from illegal logging, illegal agricultural practices, wildfires, and grazing, which induce a continuing decline in area, extent and quality of its habitat.
Habitats préférentiels (classification IUCN)
1_5Forest - Subtropical/Tropical Dry★1_6Forest - Subtropical/Tropical Moist Lowland★
Mesures de conservation recommandéesStratégies de conservation IUCNExpert
The two collections of Ambrella longituba, representing one occurrence, have been recorded from Montagne d'Ambre National Park and one living collection has been held at Vienna Botanic Garden (J. Hermans pers. comm. 2022, BGCI 2022). The species is listed in Appendix II of the Convention on International Trade in Endangered Species of Wild Fauna and Flora (CITES) but should be moved to Appendix I. It should be also included in the list of Malagasy protected species. Seed banking and micro-propagation must be developed for the species. Further awareness building is recommended for local communities and national authorities. Surveys are urgently needed to establish its current distribution, population, threats and habitat status and trends.
Actions de conservation (6)Conservation Actions Classification Scheme — IUCNExpert
1_2Resource & habitat protection2_1Site/area management3_4_1Captive breeding/artificial propagation3_4_2Genome resource bank4_3Awareness & communications5_2Policies and regulations
Stress écologiques (9)Stresses Classification — IUCNExpert
1_2Ecosystem degradation1_2Ecosystem degradation1_2Ecosystem degradation1_2Ecosystem degradation2_1Species mortality2_2Species disturbance2_2Species disturbance2_2Species disturbance2_2Species disturbance
Usage & commerce (1)Use & Trade — IUCNExpert
13Pets/display animals, horticultureinternational
Priorités de recherche (5)Research Needed Classification — IUCNExpert
1_2Population size, distribution & trends1_4Harvest, use & livelihoods1_5Threats3_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
Epiphyte
Références bibliographiques (7)Sources scientifiques de l'évaluation IUCNExpert
- IUCN. 2024. The IUCN Red List of Threatened Species. Version 2024-1. Available at: <a href="www.iucnredlist.org">www.iucnredlist.org</a>. (Accessed: 27 June 2024).
- BGCI. 2022. Botanic Gardens Conservation International (BGCI) - PlantSearch. Available at: <a href="https://tools.bgci.org/plant_search.php">https://tools.bgci.org/plant_search.php</a>. (Accessed: 2022).
- 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>.
- Madagascar Catalogue. 2022. <i>Ambrella longituba</i> H. Perrier. St. Louis, U.S.A. and Antananarivo, Madagascar. Missouri Botanical Garden. Available at: <a href="http://legacy.tropicos.org/Name/23502859?projectid=17">http://legacy.tropicos.org/Name/23502859?projectid=17</a>.
- Bosser, J. and Lecoufle, M. 2011. <i>Les Orchidees de Madagascar</i>. Biotope, Meze, Paris.
- Cribb, P. and Hermans, J. 2009. <i>Field Guide to the Orchids of Madagascar</i>. Royal Botanic Gardens, Kew.
- Hermans, J., Hermans, C., Du Puy, D., Cribb, P. and Bosser, J. 2007. <i>Orchids of Madagascar</i>. Royal Botanic Gardens, Kew.
Évaluateurs & contributeurs (3)Personnes ayant contribué à l'évaluation IUCNExpert
assessor
Rabarimanarivo, M. & Ramandimbisoa, B.
evaluator
Rajaovelona, L.R., Ralimanana, H., Razafiniary, V., Razanajatovo, H. & Ravololomanana, N.
institutions
Missouri Botanical Garden & Royal Botanic Gardens, Kew
Rabarimanarivo, M. & Ramandimbisoa, B. 2024. Ambrella longituba. The IUCN Red List of Threatened Species 2024: e.T64594032A64609436. Accessed on 05 May 2026.
Répartition mondiale
Aucune observation géoréférencée avec précision suffisante (<10 km) dans GBIF pour cette espèce.
Consulter sur les bases externes
Observations & statuts
Cartographie