Aloe alfredii
Rauh
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Description
plante du genre Aloe
Source : Wikidata
Pays · région · aire protégée · écorégion · biome
Pas d'interactions documentées pour cette espèce.
Liste rouge IUCN
EN · En dangercritères B1ab(iii)+2ab(iii)?Inconnue- Évaluation
- 2020 · v3.1
- Altitude
- 1400 – 2000 m
- Profondeur
- – m
État de la populationTexte officiel évaluation IUCNExpert
There are doubts about this species precise origin and it is possible that the indication of provenance of this species is incorrect. The species has not been found in the wild after the first collection, even though some surveys have been done specifically to find the species (Castillon and Castillon 2010). There is uncertainty as to whether the species is from Ibity.
Menaces identifiées(5 menaces classées CMP-IUCN)
2_1_2Small-holder farmingOngoing2_3_1Nomadic grazingOngoing2_3_2Small-holder grazing, ranching or farmingOngoing5_2_1Intentional use (species is the target)Ongoing7_1_1Increase in fire frequency/intensityOngoing
Description complète des menacesTexte détaillé évaluation IUCNExpert
The main threat in the area where this species is found is the increment of induced fires in grasslands linked to cattle ranching and agricultural activities. Fires are also link to political reasons, is a way people manifest discontent with the political situation. The species has been collected for horticultural purposes and this has likely caused a decline in the number of mature individuals.
Habitats préférentiels (classification IUCN)
4_4Grassland - Temperate6Rocky areas (eg. inland cliffs, mountain peaks)
Mesures de conservation recommandéesStratégies de conservation IUCNExpert
The species is found in six botanical gardens outside of Madagascar (BGCI 2018), and it is listed in CITES Appendix I (CITES 2019). Although the Ibity Mountains are a protected area, where the species is assumed to be present, it is not exempt from annual fires.
Stress écologiques (14)Stresses Classification — IUCNExpert
1_1Ecosystem conversion1_1Ecosystem conversion1_2Ecosystem degradation1_2Ecosystem degradation1_2Ecosystem degradation1_2Ecosystem degradation2_1Species mortality2_1Species mortality2_1Species mortality2_1Species mortality2_1Species mortality2_2Species disturbance2_2Species disturbance2_2Species disturbance
Priorités de recherche (1)Research Needed Classification — IUCNExpert
1_2Population size, distribution & trends
Niche IUCN globaleRealms · Systems · LMEs · Growth forms · FAOs — biogéographie IUCNExpert
Royaumes biogéographiques
Afrotropical
Systèmes (terrestre/eau douce/marin)
Terrestrial
Formes de croissance
Succulent - shrub
Références bibliographiques (4)Sources scientifiques de l'évaluation IUCNExpert
- IUCN. 2020. The IUCN Red List of Threatened Species. Version 2020-3. Available at: <a href="www.iucnredlist.org">www.iucnredlist.org</a>. (Accessed: 10 December 2020).
- CITES - The Convention on International Trade in Endangered Species of Wild Fauna and Flora. 2019. Appendices I, II and III valid from 26 November 2019. Available at: <a href="https://www.cites.org/eng/app/appendices.php">https://www.cites.org/eng/app/appendices.php</a>. (Accessed: March 2020).
- BGCI. 2018. PlantSearch online database. Richmond, UK Available at: <a href="www.bgci.org/plant_search.php">www.bgci.org/plant_search.php</a>. (Accessed: 2018).
- Castillon, J.-B. and Castillon, J.-P. 2010. <i>Les Aloe de Madagascar/The Aloes of Madagascar</i>. J.-P. Castillon, La Réunion.
Évaluateurs & contributeurs (3)Personnes ayant contribué à l'évaluation IUCNExpert
assessor
Rakotoarisoa, S.E.
evaluator
Manjato, N., Faranirina, L., Andriambololonera, S. & Ravololomanana, N.
facilitators
Jefferson, M. & Martínez Richart, A.I.
Rakotoarisoa, S.E. 2020. Aloe alfredii. The IUCN Red List of Threatened Species 2020: e.T85998420A100531849. 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