Cycas wadei

Merr.

Plante

CRLR Monde (IUCN)

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

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Calcul du tissu écologique de Cycas wadei.

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Liste rouge IUCN

CR · En danger critiquecritères B1ab(iii,v)↘Décroissante

Évaluation complète

Évaluation: 2022 · v3.1
Altitude: 20 – 50 m
Profondeur: – m

État de la populationTexte officiel évaluation IUCNExpert

The Cycas wadei population size is estimated to be about 5,051 mature individuals (Marler and Ferreras 2017). Plants are fairly dispersed, but while the population occurs in a fairly restricted area, there is excellent regeneration (A. Lindström pers. comm. 2018).

Menaces identifiées(6 menaces classées CMP-IUCN)

1_1
Housing & urban areas
Ongoing
2_2_3
Scale Unknown/Unrecorded
Ongoing
2_3_2
Small-holder grazing, ranching or farming
Ongoing
4_1
Roads & railroads
Ongoing
5_2_1
Intentional use (species is the target)
Ongoing
7_1_1
Increase in fire frequency/intensity
Ongoing

Description complète des menacesTexte détaillé évaluation IUCNExpert

This species faces a range of threats (Marler and Ferreras 2017):

1. This cycad species is in demand as an ornamental plant. The seeds and seedlings of the species are also collected and sold as ornamentals in local fairs. Poaching of large specimens occurs fairly often to satisfy demand for landscape specimens on Culion Island and for coastal resorts on nearby islands. Poaching is a minor threat at this time due to the logistical constraints of transporting live plants from the remote habitat.
2. Fire damage. Purposeful setting of fires occurs annually to promote growth of young grass for cattle. This does not severely damage mature trees but can kill seedlings.

3. Habitat conversion. This is currently the greatest threat to Cycas wadei. The habitat is being used for rubber and teak plantations.

Habitats préférentiels (classification IUCN)

1_6Forest - Subtropical/Tropical Moist Lowland
4_6Grassland - Subtropical/Tropical Seasonally Wet/Flooded

Mesures de conservation recommandéesStratégies de conservation IUCNExpert

This species is listed in Appendix II of the CITES Appendices. The area is not protected. Identification of suitable sites for the formal protection of this species is needed. An education and awareness programme as well as the long-term monitoring of the population will support the conservation of this species.

Actions de conservation (9)Conservation Actions Classification Scheme — IUCNExpert

1_1Site/area protection
1_2Resource & habitat protection
2_1Site/area management
2_3Habitat & natural process restoration
3_1_1Harvest management
3_1_2Trade management
3_4_2Genome resource bank
4_3Awareness & communications
6_1Linked enterprises & livelihood alternatives

Stress écologiques (12)Stresses Classification — IUCNExpert

1_1Ecosystem conversion
1_1Ecosystem conversion
1_1Ecosystem conversion
1_1Ecosystem conversion
1_2Ecosystem degradation
1_2Ecosystem degradation
1_2Ecosystem degradation
1_2Ecosystem degradation
1_2Ecosystem degradation
2_1Species mortality
2_3_7Reduced reproductive success
2_3_8Other

Usage & commerce (3)Use & Trade — IUCNExpert

12Handicrafts, jewellery, etc.
subsistance
13Pets/display animals, horticulture
nationalsubsistance
16Establishing ex-situ production *
international

Priorités de recherche (5)Research Needed Classification — IUCNExpert

1_2Population size, distribution & trends
1_3Life history & ecology
1_4Harvest, use & livelihoods
1_6Actions
3_1Population trends

Niche IUCN globaleRealms · Systems · LMEs · Growth forms · FAOs — biogéographie IUCNExpert

Royaumes biogéographiques

Indomalayan

Systèmes (terrestre/eau douce/marin)

Terrestrial

Formes de croissance

CycadTree - small

Références bibliographiques (9)Sources scientifiques de l'évaluation IUCNExpert

IUCN. 2023. The IUCN Red List of Threatened Species. Version 2023-1. Available at: <a href="www.iucnredlist.org">www.iucnredlist.org</a>. (Accessed: 07 December 2023).
IUCN. 2022. The IUCN Red List of Threatened Species. Version 2022-1. Available at: <a href="www.iucnredlist.org">www.iucnredlist.org</a>. (Accessed: 21 July 2022).
Marler, T.E. and Ferreras, U.F. 2017. Current status, threats and conservation needs of the endemic Cycas wadei Merrill. Journal of Biodiversity and Endangered Species 5(3): DOI: 10.4172/2332-2543.1000193.
Madulid, D.A. and Agoo, E.M.G. 2009. Taxonomy and conservation of Philippine cycads. Blumea 54: 99-102.
Lindström, A.J., Hill, K.D. and Stanberg, L.C. 2008. The genus Cycas (Cycadaceae) in The Philippines. Telopea 12(1): 119-145.
Donaldson, J.S. (ed.). 2003. Cycads. Status Survey and Conservation Action Plan. IUCN/SSC Cycad Specialist Group. IUCN, Gland, Switzerland and Cambridge, UK.
Jones, D.L. 2002. Cycads of the World (2nd edition). Smithsonian Institute Press, Washington, DC.
Whitelock, L.M. 2002. The Cycads. Timber Press, Portland, Oregon.
Hill, K.D. and Stevenson, D.W. 1998-2006. The Cycad Pages. Available at: <a href="http://plantnet.rbgsyd.gov.au/PlantNet/cycad/">http://plantnet.rbgsyd.gov.au/PlantNet/cycad/</a>.

Évaluateurs & contributeurs (3)Personnes ayant contribué à l'évaluation IUCNExpert

assessor

Ferreras, U. & Marler, T.

contributor

Hill, K.D.

evaluator

Bösenberg, J.D.

⚠ 1 erratum publié après l'évaluation.

Ferreras, U. & Marler, T. 2022. Cycas wadei (errata version published in 2023). The IUCN Red List of Threatened Species 2022: e.T42097A243420961. Accessed on 05 May 2026.