Ontologia

Nolina orbicularis

L.Hern.

VULR Monde (IUCN)
  1. Plante
  2. Tracheophyta
  3. Liliopsida
  4. Asparagales
  5. Asparagaceae
Pays · région · aire protégée · écorégion · biome

Pas d'interactions documentées pour cette espèce.

Liste rouge IUCN

VU · Vulnérablecritères A2ac↘Décroissante
Évaluation complète
Évaluation
2020 · v3.1
Altitude
1300 – 2700 m
Profondeur
– m
État de la populationExpert
The population size of this species appears to be fairly large, but with an estimated less than 10,000 mature individuals. In the last decades this population size has been reduced due to the habitat threats. It is estimated a population size reduction of 30% has taken place in the last three generations (E. Martínez Salas pers. comm 2019).

Menaces identifiées(1 menace classée CMP-IUCN)

  • 2_1_3
    Agro-industry farming
    Very Rapid DeclinesMajority (50-90%)Ongoing
Description complète des menacesExpert
The habitat loss of this species is a major threat and is caused by human pressures on the land. More specifically, there are areas where the vocation and use of the land have been altered, causing the removal of natural vegetation (Wilken et al. 2011). The expansion of the agriculture frontier in the range is relatively high, which has caused direct mortality as well as the continuing decline in EOO, AOO, and habitat quality.

Habitats préférentiels (classification IUCN)

  • 3_5Shrubland - Subtropical/Tropical Dry★
  • 3_4Shrubland - Temperate
Mesures de conservation recommandéesExpert

There are three current conservation actions in place: Forest Protection Zone and Wildlife Refuge "Sierra de Álvarez" (San Luis Potosí), National Park "El Potosí" (San Luis Potosí), State Conservation Reserve "Pinal del Zamorano" (Guanajuato). The species is not known from any ex situ collections (BGCI 2019). Habitat and natural process restoration would be beneficial with support for non-agricultural and non-livestock activities, to avoid change of land use in the region with sustainable production and livelihood alternatives. In addition, monitoring of the habitat is recommended.

 

Actions de conservation (2)Expert
  • 2_3Habitat & natural process restoration
  • 6_1Linked enterprises & livelihood alternatives
Stress écologiques (3)Expert
  • 1_1Ecosystem conversion
  • 1_2Ecosystem degradation
  • 2_1Species mortality
Priorités de recherche (1)Expert
  • 3_4Habitat trends
Niche IUCN globaleExpert

Royaumes biogéographiques

NearcticNeotropical

Systèmes (terrestre/eau douce/marin)

Terrestrial

Formes de croissance

Succulent - tree
Références bibliographiques (6)Expert
  1. IUCN. 2020. The IUCN Red List of Threatened Species. Version 2020-1. Available at: <a href="www.iucnredlist.org">www.iucnredlist.org</a>. (Accessed: 19 March 2020).
  2. BGCI. 2019. Botanic Gardens Conservation International: Threat Search. Richmond Available at: <a href="http://www.bgci.org/threat_search.php">http://www.bgci.org/threat_search.php</a>. (Accessed: 2019).
  3. Hernández-Sandoval, L. 2019. Dos especies nuevas de Nolina (Asparagaceae) del centro de México. <i>Phytoneuron</i> 12: 1-9.
  4. BGCI. 2018. Botanic Gardens Conservation International (BGCI) - Plant Search. Available at: <a href="https://www.bgci.org/plant_search.php">https://www.bgci.org/plant_search.php</a>.
  5. Bachman, S., Moat, J., Hill, A. W., de Torre, J. & Scott, B. 2011. Supporting Red List threat assessments with GeoCAT: Geospatial conservation assessment tool. . <i>ZooKeys</i> 150: 117-126.
  6. Wiken, Ed., Jiménez Nava, F. and Griffith, G. 2011. <i>North American Terrestrial Ecoregions—Level III</i>. Commission for Environmental Cooperation, Montreal, Canada.
Évaluateurs & contributeurs (2)Expert
assessor
Martínez Salas, E., Samain, M.-S., Fuentes, A.C.D. & Hernández Sandoval, L.
evaluator
Oldfield, S.

Martínez Salas, E., Samain, M.-S., Fuentes, A.C.D. & Hernández Sandoval, L. 2020. Nolina orbicularis. The IUCN Red List of Threatened Species 2020: e.T162239864A162240870. Accessed on 05 May 2026.

Répartition mondiale

Aucune observation géoréférencée avec précision suffisante (<10 km) dans GBIF pour cette espèce.

Consulter sur les bases externes

Observations & statuts

iNaturalist

Bibliographie

BHLOpenAlex