Aeranthes angustidens
H.Perrier
Graphe en cours d’indexation
Calcul du tissu écologique de Aeranthes angustidens.
Le graphe apparaîtra automatiquement dès que le calcul est terminé (rafraîchissement toutes les 5s).
Liste rouge IUCN
VU · Vulnérablecritères B1ab(i,ii,iii,iv,v)+2ab(i,ii,iii,iv,v)↘Décroissante- Évaluation
- 2019 · v3.1
- Altitude
- 700 – 1485 m
- Profondeur
- – m
État de la populationTexte officiel évaluation IUCNExpert
The population of Aeranthes angustidens is currently thought to be decreasing since the species' habitat is threatened. Indeed, the species is known from the footprint of a mining project undergoing intense human pressure such as forests clearing as well as several unprotected forests subjected to selective logging, timber harvesting for small-scale subsistence and tavy (slash-and-burn farming). The number of mature individuals of A. angustidens is not known and cannot be estimated since the species is an epiphyte.
Menaces identifiées(3 menaces classées CMP-IUCN)
2_1_1Shifting agricultureRapid DeclinesMinority (<50%)Ongoing3_2Mining & quarryingRapid DeclinesMinority (<50%)Ongoing5_3_1Intentional use: (subsistence/small scale) [harvest]Rapid DeclinesMinority (<50%)Ongoing
Description complète des menacesTexte détaillé évaluation IUCNExpert
This species experiences continuing decline in EOO, AOO, habitat quality, number of locations and number of mature individuals because of habitat destruction due to forest exploitation, mining and shifting cultivation. A subpopulation of this species has been recorded on the footprint of a mining project undergoing intense human pressure such as forests clearing. Other subpopulations are known from several unprotected forests subjected to selective logging, timber harvesting for small-scale subsistence and tavy (slash-and-burn farming).
Habitats préférentiels (classification IUCN)
1_6Forest - Subtropical/Tropical Moist Lowland★
Mesures de conservation recommandéesStratégies de conservation IUCNExpert
Actions de conservation (4)Conservation Actions Classification Scheme — IUCNExpert
1_1Site/area protection1_2Resource & habitat protection3_4_1Captive breeding/artificial propagation3_4_2Genome resource bank
Stress écologiques (10)Stresses Classification — IUCNExpert
1_1Ecosystem conversion1_1Ecosystem conversion1_1Ecosystem conversion1_2Ecosystem degradation1_2Ecosystem degradation1_2Ecosystem degradation2_1Species mortality2_1Species mortality2_1Species mortality2_2Species disturbance
Priorités de recherche (4)Research Needed Classification — IUCNExpert
1_2Population size, distribution & trends1_5Threats1_6Actions3_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. 2019. The IUCN Red List of Threatened Species. Version 2019-1. Available at: <a href="www.iucnredlist.org">www.iucnredlist.org</a>. (Accessed: 21 March 2019).
- Phillip Cribb and Johan Hermans. 2009. <i>Field Guide to the Orchids of Madagascar.</i> Royal Botanic Gardens, Kew., Richemond, Surrey, TW9 3AB, UK.
- Johan and Clare Hermans, David Du Puy, Phillip Cribb and Jean Bosser. 2007. <i>Orchids of Madagascar</i>. Royal Botanic Gardens, Kew, Richmond, Surrey, TW9 3AB, UK.
- Du Puy, D., Hermans, J and Hermans, C. 1999. <i>The Orchids of Madagascar</i>. Royal Botanic Gardens, Kew.
Évaluateurs & contributeurs (2)Personnes ayant contribué à l'évaluation IUCNExpert
Ramandimbisoa, B., Ravololomanana, N., Verlynde, S. & Stévart, T. 2019. Aeranthes angustidens. The IUCN Red List of Threatened Species 2019: e.T70102853A70157526. Accessed on 05 May 2026.
Distribution mondiale
Phénologie
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Observations & statuts
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