Dioon merolae

De Luca, Sabato & Vázq.Torres

Plante

VULR Monde (IUCN)

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

Graphe en cours d’indexation

Calcul du tissu écologique de Dioon merolae.

Le graphe apparaîtra automatiquement dès que le calcul est terminé (rafraîchissement toutes les 5s).

Liste rouge IUCN

VU · Vulnérablecritères A2cd; C2a(i)↘Décroissante

Évaluation complète

Évaluation: 2022 · v3.1
Altitude: 650 – 1200 m
Profondeur: – m

État de la populationTexte officiel évaluation IUCNExpert

Plants are known from a number of locations and the decline in these different locations varies between 10% and 70% within the past two generations. The possible future decline is estimated between 10% and 50%. This decline is largely due to over collection.

Menaces identifiées(1 menace classée CMP-IUCN)

5_2_1
Intentional use (species is the target)
Slow, Significant DeclinesMajority (50-90%)Ongoing

Description complète des menacesTexte détaillé évaluation IUCNExpert

Subpopulations are affected by over collection. In some cases the top portion of plants are cut off and sold as a table decoration.

Habitats préférentiels (classification IUCN)

1_5Forest - Subtropical/Tropical Dry

Mesures de conservation recommandéesStratégies de conservation IUCNExpert

This species is listed in Appendix II of CITES. Plants are known to be protected by local communities and are found in the La Sepultura Biosphere Reserve. The monitoring of populations will support the conservation of this species.

Stress écologiques (1)Stresses Classification — IUCNExpert

2_1Species mortality

Usage & commerce (1)Use & Trade — IUCNExpert

13Pets/display animals, horticulture
internationalnationalsubsistance

Priorités de recherche (3)Research Needed Classification — IUCNExpert

1_2Population size, distribution & trends
1_3Life history & ecology
1_6Actions

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 (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).
Osborne, R. and Gregory, T. 2009. Focus on Dioon merolae. Encephalartos 97: 12-17.
Donaldson, J.S. (ed.). 2003. Cycads. Status Survey and Conservation Action Plan. IUCN/SSC Cycad Specialist Group. IUCN, Gland, Switzerland and Cambridge, UK.
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>.
Jones, D.L. 1993. Cycads of the World. Reed, New Holland, Frenchs Forest, N.S.W., Australia.
De Luca, P., Sabato, S. and Vazques Torres, M. 1981. Dioon merolae (Zamiaceae), a new species from Mexico. Brittonia 33(2): 179-185.
Anonymous. Dioon merolae. Available at: <a href="http://specimens.kew.org/herbarium/K000081684 http://specimens.kew.org/herbarium/K000081687 ">http://specimens.kew.org/herbarium/K000081684 http://specimens.kew.org/herbarium/K000081687 </a>.

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

assessor

Chemnick, J. & Gregory, T.

contributor

Donaldson, J.S. & Morales, S.

evaluator

Bösenberg, J.D.

⚠ 1 erratum publié après l'évaluation.

Chemnick, J. & Gregory, T. 2022. Dioon merolae (errata version published in 2023). The IUCN Red List of Threatened Species 2022: e.T42146A243386656. Accessed on 05 May 2026.