Caryota kiriwongensis
Hodel
Pays · région · aire protégée · écorégion · biome
Graphe en cours d’indexation
Calcul du tissu écologique de Caryota kiriwongensis.
Le graphe apparaîtra automatiquement dès que le calcul est terminé (rafraîchissement toutes les 5s).
Liste rouge IUCN
CR · En danger critiquecritères C2a(i,ii); D↘Décroissante- Évaluation
- 2025 · v3.1
- Altitude
- 1000 – 1200 m
- Profondeur
- – m
État de la populationTexte officiel évaluation IUCNExpert
This species is known only from a single subpopulation of approximately 50 large individuals, scattered across an area of approximately 5 km wide. A survey of the population in 1998 found that only a small number of individuals were actually reproductive, with few seedlings or saplings noted (Hodel 1998; 2009). The number of mature individuals is therefore likely to be much smaller than 50. Given that this occurs in montane areas at the bottom of steep slopes, it may be that some individuals have been overlooked due to their inaccessibility or remote locality. It was noted by Hodel (1998) that a photograph of a palm published in 1973 from southern Thailand could have represented this species, but no further work to survey this species is known to have been carried out. It should be possible to spot individuals of this species on high resolution aerial photographs (Anders Barford pers. comm. 2023) and this method could be used to try to identify new individuals. Given the apparent low rate of reproduction within the population, it is inferred that the population will be slowly declining, due to an insufficient rate of replacement of adult trees following their natural death.
Menaces identifiées(2 menaces classées CMP-IUCN)
2_1_2Small-holder farmingFuture2_2_1Small-holder plantationsFuture
Description complète des menacesTexte détaillé évaluation IUCNExpert
This species is found within Khao Luang National Park, which appears from satellite imagery to have extensive intact forest remaining. However, there has been encroachment from Kiriwong into the lower slopes of the park caused by replacement of forest by plantations, but this has so far only reached up to around 800 m asl (Round et al. 2006). Small plantation patches are visible on satellite imagery (Google Earth 2023) within 5 to 8 km of where this species occurs. Though not currently considered to be a threat to this species, continued and unchecked encroachment into forests at higher elevations could potentially pose a serious threat to this species in the future should deforestation activities reach the site at which it grows.
Habitats préférentiels (classification IUCN)
1_6Forest - Subtropical/Tropical Moist Lowland
Mesures de conservation recommandéesStratégies de conservation IUCNExpert
There are five ex situ collections of this species held by botanic gardens worldwide (BGCI 2023). The only known subpopulation occurs within Khao Luang National Park (UNEP-WCMC and IUCN 2023).
Actions de conservation (2)Conservation Actions Classification Scheme — IUCNExpert
2_1Site/area management3_4_1Captive breeding/artificial propagation
Stress écologiques (6)Stresses Classification — IUCNExpert
1_1Ecosystem conversion1_1Ecosystem conversion1_2Ecosystem degradation1_2Ecosystem degradation2_1Species mortality2_2Species disturbance
Usage & commerce (1)Use & Trade — IUCNExpert
13Pets/display animals, horticultureinternational
Priorités de recherche (6)Research Needed Classification — IUCNExpert
1_2Population size, distribution & trends1_3Life history & ecology1_5Threats2_2Area-based Management Plan3_1Population trends3_4Habitat trends
Niche IUCN globaleRealms · Systems · LMEs · Growth forms · FAOs — biogéographie IUCNExpert
Royaumes biogéographiques
Indomalayan
Systèmes (terrestre/eau douce/marin)
Terrestrial
Formes de croissance
Tree - large
Références bibliographiques (11)Sources scientifiques de l'évaluation IUCNExpert
- IUCN. 2025. The IUCN Red List of Threatened Species. Version 2025-2. Available at: <a href="www.iucnredlist.org">www.iucnredlist.org</a>. (Accessed: 10 October 2025).
- UNEP-WCMC and IUCN. 2023. Protected Planet: The World Database on Protected Areas (WDPA) and World Database on Other Effective Area-based Conservation Measures (WD-OECM) [Online]. Cambridge, UK. UNEP-WCMC and IUCN. Available at: <a href="https://www.protectedplanet.net">https://www.protectedplanet.net</a>. (Accessed: 2023).
- Google Earth. 2023. Satellite Imagery. Available at: <a href="https://www.google.co.uk/intl/en_uk/earth/">https://www.google.co.uk/intl/en_uk/earth/</a>. (Accessed: 2023).
- GBIF. 2023. Global Biodiversity Information Facility. Available at: <a href="https://www.gbif.org/">https://www.gbif.org/</a>.
- 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).
- Dinerstein, E., Olson, D., Joshi, A., Vynne, C., Burgess, N.D., Wikramanayake, E., Hahn, N., Palminteri, S., Hedao, P., Noss, R., Hansen, M., Locke, H., Ellis, E.C., Jones, B., Barber, C.V., Hayes, R., Kormos, C., Martin, V., Crist, E., Sechrest, W., Price, L., Baillie, J.E.M., Weeden, D., Suckling, K., Davis, C., Sizer, N., Moore, R., Thau, D., Birch, T., Potapov, P., Turubanova, S., Tyukavina, A., Souza, N., Pintea, L., Brito, J.C., Llewellyn, O.A., Miller, A.G., Patzelt, A., Ghazanfar, S.A., Timberlake, J., Klöser, H., Shennan-Farpón, Y., Kindt, R., Lillesø, J.-P.B., Breugel, P., Graudal, L., Voge, M., Al-Shammari, K.F. and Saleem, M. 2017. An ecoregion-based approach to protecting half the terrestrial realm. <i>BioScience</i> bix014.
- Bachman, S., Moat, J., Hill, A.W., de la Torre, J. and Scott, B. 2011. Supporting Red List threat assessments with GeoCAT: geospatial conservation assessment tool. In: V. Smith and L. Penev (eds) e-Infrastructures for data publishing in biodiversity science. <i>Zookeys</i> 150: 117–126.
- Henderson, A. 2009. <i>Field Guide to the Palms of Southern Asia</i>. Princeton University Press, Princeton, New Jersey.
- Hodel, D. 2009. <i>Caryota kiriwongensis</i> revisited. <i>Palms; Journal of the International Palm Society</i> 53(4): 171-172.
- Round, P.D., Gale, G.A. and Brockleman, W.Y. 2006. A comparison of bird communities in mixed fruit orchards and natural forests at Khao Luang, southern Thailand. <i>Biodiversity and Conservation</i> 15: 2873-2891.
- Hodel, D. 1998. <i>The palms and cycads of Thailand</i>. Allen Press, Lawrence, Kansas.
Évaluateurs & contributeurs (3)Personnes ayant contribué à l'évaluation IUCNExpert
assessor
Barker, A.
evaluator
Barfod, A.
institutions
Royal Botanic Gardens, Kew
Barker, A. 2025. Caryota kiriwongensis. The IUCN Red List of Threatened Species 2025: e.T191333A1976361. Accessed on 05 May 2026.
Distribution mondiale
Calcul de la distribution GBIF· ~10–60 s
Phénologie
Calcul du calendrier d'apparition· ~5–30 s