Microcycas calocoma

(Miq.) A.DC.

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 Microcycas calocoma.

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Liste rouge IUCN

CR · En danger critiquecritères C2a(i)↘Décroissante

Évaluation complète

Évaluation: 2022 · v3.1
Altitude: 40 – 665 m
Profondeur: – m

État de la populationTexte officiel évaluation IUCNExpert

Del Risco and Morell (1984) studied plants at five localities and they estimated that there were 10-25 plants per locality. In 1996/7, Pena Garcia et al., studied plants at 17 sites and their study included 540 plants. The largest locality had 124 plants present. Julio Lazcano (pers. comm.) undertook a Masters research project at Vinales National Park and counted 1,200 individuals in his study. Lazcano (pers. comm.) estimated that there were 1,540 documented plants in Cuba. The subpopulation at Loma el Corcho is well known and has 13-15 plants and has shown a 90% decline in the last 50 years. However, this subpopulation is in the most heavily transformed part of the range and overall estimates of decline across the range are closer to 20% over 50 years (Gonzalez-Oliva et al. 2014). While there are reported to be >1,000 individuals of this species, the Red List assessment focuses on mature individuals capable of reproduction and Gonzalez-Oliva et al. (2014) estimate that the number of mature individuals to be < 250, with no subpopulation containing more than 26 mature individuals.

Menaces identifiées(2 menaces classées CMP-IUCN)

2_1_2
Small-holder farming
Rapid DeclinesMajority (50-90%)Ongoing
5_2_1
Intentional use (species is the target)
Slow, Significant DeclinesMajority (50-90%)Ongoing

Description complète des menacesTexte détaillé évaluation IUCNExpert

The plants are affected by habitat destruction/fragmentation (moderate) and over collecting of plants from the wild. Reproductive failure (pollinator extinction) is a concern, although this still needs to be verified. Mechanical damage to stems has also been reported in several localities (Peña Garcia et al. 1996/7).

Habitats préférentiels (classification IUCN)

1_5Forest - Subtropical/Tropical Dry
1_6Forest - Subtropical/Tropical Moist Lowland
4_5Grassland - Subtropical/Tropical Dry

Mesures de conservation recommandéesStratégies de conservation IUCNExpert

This species is listed in Appendix I of CITES. Plants are protected in the Vinales Nationl Park and are also found in the "Mil Cumbres" protected area. The National Botanical Garden of Cuba has 156 live specimens in their collection. Microcycas calocoma (Miq.) A.DC. was declared a Natural Monument of the Republic of Cuba because it was considered a jewel of Cuban flora.

Actions de conservation (1)Conservation Actions Classification Scheme — IUCNExpert

4_3Awareness & communications

Stress écologiques (4)Stresses Classification — IUCNExpert

1_1Ecosystem conversion
1_2Ecosystem degradation
2_1Species mortality
2_3_4Loss of pollinator

Usage & commerce (1)Use & Trade — IUCNExpert

13Pets/display animals, horticulture
internationalnational

Priorités de recherche (3)Research Needed Classification — IUCNExpert

1_2Population size, distribution & trends
1_3Life history & ecology
3_1Population trends

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

Royaumes biogéographiques

Neotropical

Systèmes (terrestre/eau douce/marin)

Terrestrial

Formes de croissance

CycadTree - large

Références bibliographiques (12)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).
González-Oliva, L., González-Torres, L.R., Palmarola, A. and Barrios, D. 2014. Categorización de taxones de la flora de Cuba. Bissea 8(número especial 1): 1-314.
Pinares, A., González-Astorga, J., Vovides A.P., Lazcano, J. and Vendrame, W.A. 2009. Genetic diversity of the endangered endemic Microcycas calocoma (Miq.) A. DC (Zamiaceae, Cycadales): Implications for conservation. Biochemical Systematics and Ecology 37: 385-394.
Haynes, J. 2007. A taxonomic and bibliographic history of Microcycas calocoma (Miq.) A. DC. The Cycad Newsletter 30(4): 18-19.
Chaves, R. and Ferrer, Y. 2007. Some news of Microcycas in Cuba. The Cycad Newsletter 30(4): 10-14.
Lazcano, J. 2007. Notes on Microcycas calocoma. The Cycad Newsletter 30(4): 15-17.
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>.
Peña García, E., López García, P.I., Lazcano Lara, J.C., Leiva Sánchez, A.T. and Seal, U. 1998. Memoirs of the 1st Conservation Assessment and Management Plan of Wild Cuban Plants Workshop, CAMP 1. IUCN/SSC Conservation & Breeding Specialist Group, Apple Valley, MN.
Peña Garcia, E., Lopez Garcia, P.I., Lazcano Lara, J., Pérez Montesimos, D. and Torriente Campos, Z. 1996-97. La reproducción sexual en Microcycas. I, Estudios de monitoreo in situ. Revista del Jardín Botánico Nacional 17/18: 147-158.
Osborne, R. and Santana, R.M. 1995. Focus on Microcycas calocoma (Miq.) A. DC. Encephalartos 42: 4-11.
Del Risco, E. and Morell, J. 1984. Algunos apuntes sobre Microcycas calocoma (Miq.) A. DC. Revista del Jardín Botánico Nacional 5(1): 111-131.

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

assessor

Bösenberg, J.D.

contributor

Gonzalez-Oliva, L.

evaluator

Donaldson, J.S.

⚠ 1 erratum publié après l'évaluation.

Bösenberg, J.D. 2022. Microcycas calocoma (errata version published in 2023). The IUCN Red List of Threatened Species 2022: e.T42107A243384251. Accessed on 05 May 2026.