Ponapea palauensis
Kaneh.
Pays · région · aire protégée · écorégion · biome
Pas d'interactions documentées pour cette espèce.
Liste rouge IUCN
EN · En dangercritères B2ab(iii,v); C2a(ii)↘Décroissante- Évaluation
- 2024 · v3.1
- Altitude
- 0 – 30 m
- Profondeur
- – m
État de la populationTexte officiel évaluation IUCNExpert
This species has a very small and restricted range. It is considered rare and has a scattered distribution within its range. It was estimated that the total mature population consists of 622 individuals, and at least 95% of the individuals occur in one subpopulation (Costion et al. 2013). In 2022 the subpopulation of Ponapea palauensis on Ngermalk Island was surveyed by the Belau National Museum Natural History and Koror State DCLE, and 42 individual trees were measured and georeferenced.
Menaces identifiées(3 menaces classées CMP-IUCN)
1_1Housing & urban areasOngoing8_1_2Named speciesOngoing8_1_2Named speciesOngoing
Description complète des menacesTexte détaillé évaluation IUCNExpert
Two introduced parrots, Papuan Eclectus (Eclectus polychloros) and Sulphur-crested Cockatoos (Cacatua galerita), are known to feed on the terminal bud of the palms, killing entire trees. The habitat is threatened by urbanization on some of the islands.
Habitats préférentiels (classification IUCN)
1_6Forest - Subtropical/Tropical Moist Lowland
Mesures de conservation recommandéesStratégies de conservation IUCNExpert
The range of this species falls within a protected area. It is kept in at least one ex situ collection (BGCI 2023). Ex situ conservation efforts are carried out, and propagation and seedling translocations has in 2022 expanded the species' habitat within the Koror State by 12.06 hectares.
Actions de conservation (2)Conservation Actions Classification Scheme — IUCNExpert
1_1Site/area protection3_4_1Captive breeding/artificial propagation
Priorités de recherche (1)Research Needed Classification — IUCNExpert
1_5Threats
Niche IUCN globaleRealms · Systems · LMEs · Growth forms · FAOs — biogéographie IUCNExpert
Royaumes biogéographiques
Oceanian
Systèmes (terrestre/eau douce/marin)
Terrestrial
Formes de croissance
Tree - small
Références bibliographiques (5)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. 2023. 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: 2023).
- Conservation International Pacific Islands Program. 2013. Biodiversity Conservation Lessons Learned Technical Series 19: Threatened Endemic Plants of Palau.
- Costion, C.M., Hillmann-Kitalong, A., Perlman, S. and Edwards, W. 2013. Palau's rare and threatened palm <i>Ponapea palauensis</i> (Arecaceae): Population density, distribution, and threat assessment 1. <i>Pacific Science</i> 67(4): 599-607.
- Costion, C.M., Kitalong, A.H. and Holm, T. 2009. Plant endemism, rarity, and threat in Palau, Micronesia: A geographical checklist and preliminary Red List assessment. <i>Micronesica</i> 41: 131-164.
Évaluateurs & contributeurs (2)Personnes ayant contribué à l'évaluation IUCNExpert
assessor
Kitalong, A. & Svensson, M.S.
evaluator
Fowler, K.
Kitalong, A. & Svensson, M.S. 2024. Ponapea palauensis. The IUCN Red List of Threatened Species 2024: e.T156523493A158428737. 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
Note nomenclaturale & synonymesDétails taxonomiques + synonymes CoLExpert
Note nomenclaturale
TAXREF v18 — INPN/MNHNSynonymes (1)— redirigent vers cette page
- Ptychosperma palauense(Kaneh.) H.E.Moore & Fosberg
Sources : Catalogue of Life Cross-References (synonymes) · TAXREF v18 INPN/MNHN (commentaires FR).