Angraecum danguyanum

H.Perrier

Plante

VULR Monde (IUCN)

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

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Calcul du tissu écologique de Angraecum danguyanum.

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Liste rouge IUCN

VU · Vulnérablecritères B2ab(i,ii,iii,iv,v)↘Décroissante

Évaluation complète

Évaluation: 2019 · v3.1
Altitude: 100 – 1200 m
Profondeur: – m

État de la populationTexte officiel évaluation IUCNExpert

There are eight known subpopulations of this species.

Menaces identifiées(3 menaces classées CMP-IUCN)

3_2
Mining & quarrying
Rapid DeclinesMinority (<50%)Ongoing
2_1_1
Shifting agriculture
Slow, Significant DeclinesMinority (<50%)Ongoing
5_3_3
Unintentional effects: (subsistence/small scale) [harvest]
Slow, Significant 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, annual fire, mining and shifting cultivation. 12 specimens (4 unique occurrences) of this species have been recorded on the footprint of a mining project undergoing intense human pressure such as forests clearing. These specimens were taken from individuals that are now extirpated. Three other subpopulations are known from 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
1_9Forest - Subtropical/Tropical Moist Montane

Mesures de conservation recommandéesStratégies de conservation IUCNExpert

Six specimens (5 unique occurrences) of Angraecum danguyanum have been collected in several protected areas, the Loky Manambato Protected Area (1 specimen), the Marojejy National Park (1 specimen), COMATSA (1 specimen) and the Vohibe forest (3 specimens).

Actions de conservation (4)Conservation Actions Classification Scheme — IUCNExpert

1_2Resource & habitat protection
2_1Site/area management
3_4_1Captive breeding/artificial propagation
3_4_2Genome resource bank

Stress écologiques (8)Stresses Classification — IUCNExpert

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

Priorités de recherche (4)Research Needed Classification — IUCNExpert

1_2Population size, distribution & trends
1_5Threats
1_6Actions
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 (2)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).
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

assessor

Verlynde, S., Ramandimbisoa, B. & Stévart, T.

evaluator

Rabehevitra, A.D., Rajaovelona, L.R. & Ravololomanana, N.

Verlynde, S., Ramandimbisoa, B. & Stévart, T. 2019. Angraecum danguyanum. The IUCN Red List of Threatened Species 2019: e.T69221936A69253317. Accessed on 05 May 2026.