Zamia disodon
D.W.Stev. & Sabato
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Calcul du tissu écologique de Zamia disodon.
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Liste rouge IUCN
EN · En dangercritères B1ab(iii,v)+2ab(iii,v); C2a(i)↘Décroissante- Évaluation
- 2022 · v3.1
- Altitude
- 0 – 200 m
- Profondeur
- – m
État de la populationTexte officiel évaluation IUCNExpert
Zamia disodon is known from a few subpopulations (three subpopulations identified to date). A few demographic studies have been carried out for the species (years 2012 to 2017 in two localities, the third one has been impossible to visit for security reasons). These studies suggest that the known subpopulations have small numbers of adults (less than 250 individuals). It is possible that the species has more subpopulations (although field work has been carried out in many localities in the Uraba region without finding the species), therefore further research on population distribution and abundance is required. The total population size is likely to be less than 1,000 adults.
Menaces identifiées(5 menaces classées CMP-IUCN)
2_1_3Agro-industry farmingRapid DeclinesMinority (<50%)Ongoing2_3_2Small-holder grazing, ranching or farmingRapid DeclinesMajority (50-90%)Ongoing2_1_2Small-holder farmingSlow, Significant DeclinesMajority (50-90%)Ongoing5_3_3Unintentional effects: (subsistence/small scale) [harvest]Slow, Significant DeclinesMajority (50-90%)Ongoing2_3_3Agro-industry grazing, ranching or farmingVery Rapid DeclinesMinority (<50%)Ongoing
Description complète des menacesTexte détaillé évaluation IUCNExpert
All subpopulations of the species occur in landscapes threatened with high deforestation rates, caused by agricultural and urban expansion, mostly forest destruction for cattle ranching and crops. The forest patches where subpopulations remain are very small (less than 100 hectares) and they are degraded by human activities like logging and hunting. None of the subpopulations occur within protected areas, and the habitat is highly threatened and could disappear in the next decades.
Habitats préférentiels (classification IUCN)
1_5Forest - Subtropical/Tropical Dry★1_6Forest - Subtropical/Tropical Moist Lowland★
Mesures de conservation recommandéesStratégies de conservation IUCNExpert
Two subpopulations are within local reserves managed by the regional environmental authority (Corpuraba), but the species is not effectively protected in these reserves. The species has no representation in ex situ collections in botanical gardens in Colombia, and has proven to be difficult to propagate ex situ. A restoration programme has been going for the species since the year 2013, where seedlings are produced at greenhouses near to the original forest habitat and juveniles plants are reintroduced to supplement the local populations. Further actions are required urgently to improve population and habitat viability in the long term. The conservation action plan for Colombian Cycads has proposed specific conservation actions for the species, and there is a species conservation strategy, but the strategy still requires to secure funding for the long term.
Actions de conservation (15)Conservation Actions Classification Scheme — IUCNExpert
1_1Site/area protection1_2Resource & habitat protection2_1Site/area management2_3Habitat & natural process restoration3_2Species recovery3_4_1Captive breeding/artificial propagation4_2Training4_3Awareness & communications5_1_2National level5_1_3Sub-national level5_2Policies and regulations5_4_2National level5_4_3Sub-national level6_1Linked enterprises & livelihood alternatives6_4Conservation payments
Stress écologiques (9)Stresses Classification — IUCNExpert
1_1Ecosystem conversion1_1Ecosystem conversion1_1Ecosystem conversion1_1Ecosystem conversion1_1Ecosystem conversion1_2Ecosystem degradation1_2Ecosystem degradation1_2Ecosystem degradation1_2Ecosystem degradation
Usage & commerce (1)Use & Trade — IUCNExpert
13Pets/display animals, horticultureinternational
Priorités de recherche (9)Research Needed Classification — IUCNExpert
1_2Population size, distribution & trends1_3Life history & ecology1_4Harvest, use & livelihoods1_5Threats1_6Actions2_1Species Action/Recovery Plan2_2Area-based Management Plan3_1Population trends3_4Habitat trends
Niche IUCN globaleRealms · Systems · LMEs · Growth forms · FAOs — biogéographie IUCNExpert
Royaumes biogéographiques
Systèmes (terrestre/eau douce/marin)
Formes de croissance
Références bibliographiques (3)Sources scientifiques de l'évaluation IUCNExpert
- 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).
- Lopez-Gallego, C. 2015. <i>Plan de Accion para la Conservacion de las Zamias de Colombia</i>. Ministerio de Ambiente y Desarrollo Sostenible de Colombia, Bogota.
- Stevenson, D.W. 2004. Cycads of Colombia. <i>The Botanical Review</i> 70(2): 194-234.
Évaluateurs & contributeurs (2)Personnes ayant contribué à l'évaluation IUCNExpert
Lopez-Gallego, C. 2022. Zamia disodon. The IUCN Red List of Threatened Species 2022: e.T42109A69833464. Accessed on 05 May 2026.