Ontologia

Quercus flocculenta

C.H.Mull.

ENLR Monde (IUCN)
Pays · région · aire protégée · écorégion · biome

Graphe en cours d’indexation

Calcul du tissu écologique de Quercus flocculenta.

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

Liste rouge IUCN

EN · En dangercritères B1ab(iii)+2ab(iii)?Inconnue
Évaluation complète
Évaluation
2020 · v3.1
Altitude
20002900 m
Profondeur
m
État de la populationExpert
This species grows as isolated trees in pine and oak forests on the Potosí hill in the municipality of Galeana, Nuevo León (J. Encina pers. comm. 2017). Although there has been no quantitative study on the population size and trends of Quercus flocculenta's population, it is known to be restricted geographically. It can be a dominant species for cover, but is not always dominant where it is found (Conde Vazquez 2011).

Menaces identifiées(2 menaces classées CMP-IUCN)

  • 1_1
    Housing & urban areas
    UnknownUnknownOngoing
  • 5_3_3
    Unintentional effects: (subsistence/small scale) [harvest]
    UnknownUnknownOngoing
Description complète des menacesExpert
Quercus flocculenta is threatened by the logging of timber species in its habitat, as it causes habitat degradation, as well as human induced fires. Quercus flocculenta is found near the growing urban area of Monterrey, where urban expansion and land use change threatens Q. flocculenta's natural habitat.  Much of Q. flocculenta's habitat is located on private properties, although this often means that the individuals in those populations are protected from harvesting, but it also implies they cannot be accessed for collecting or monitoring the population size (J. Encina pers. comm. 2017).

Habitats préférentiels (classification IUCN)

  • 1_4Forest - Temperate
  • 3_4Shrubland - Temperate
Mesures de conservation recommandéesExpert
Quercus flocculenta is found in the Cumbres de Monterrey National Park. It is considered a priority region and an important area for bird conservation because of its vicinity to El Taray reserve (a parrot reserve in the mountains in the east). Much of Q. flocculenta's habitat is located on private properties, although this often means that the individuals in those populations are protected from harvesting, but it also implies they cannot be accessed for collecting or monitoring the population size (J. Encina pers. comm. 2017). There are currently no ex situ collections for Q. flocculenta (BGCI 2017).
Actions de conservation (1)Expert
  • 3_4_2Genome resource bank
Stress écologiques (7)Expert
  • 1_1Ecosystem conversion
  • 1_1Ecosystem conversion
  • 1_2Ecosystem degradation
  • 1_2Ecosystem degradation
  • 2_1Species mortality
  • 2_2Species disturbance
  • 2_2Species disturbance
Priorités de recherche (2)Expert
  • 1_2Population size, distribution & trends
  • 3_1Population trends
Niche IUCN globaleExpert

Royaumes biogéographiques

Nearctic

Systèmes (terrestre/eau douce/marin)

Terrestrial

Formes de croissance

Shrub - largeTree - small
Références bibliographiques (8)Expert
  1. IUCN. 2020. The IUCN Red List of Threatened Species. Version 2020-2. Available at: <a href="www.iucnredlist.org">www.iucnredlist.org</a>. (Accessed: 13 June 2020).
  2. IUCN. 2018. The IUCN Red List of Threatened Species. Version 2018-1. Available at: <a href="www.iucnredlist.org">www.iucnredlist.org</a>. (Accessed: 28 June 2018).
  3. BGCI. 2017. PlantSearch. Available at: <a href="www.bgci.org/plant_search.php">www.bgci.org/plant_search.php</a>.
  4. Elias Rodriguez, J.L.A. 2015. Curvas de Crecimiento e Incremento de Cuatro Pinaceas en el Noreste de Mexico. Divison de Agronomia, Departamento Forestal, Universidad Autonoma Agraria Antonio Narro.
  5. Modley, R. 2012. Protecting the biodiversity of the Sierra Madre Oriental. Available at: <a href="https://www.giz.de/en/worldwide/25056.html">https://www.giz.de/en/worldwide/25056.html</a>.
  6. Vazquez, A.C. 2011. Ecología de Comunidades Vegetales en un Gradiente Altitudinal en la Sierra Madre Oriental, Nuevo León, México. Ciencias Forestales, Universidad Autonoma de Nuevo Leon.
  7. UNESCO - MAB. 2006. Biosphere Reserve Information, Mexico, Cumbres De Monterrey. Available at: <a href="http://www.unesco.org/mabdb/br/brdir/directory/biores.asp?mode=all&code=MEX+21">http://www.unesco.org/mabdb/br/brdir/directory/biores.asp?mode=all&code=MEX+21</a>.
  8. Muller, C.H. 1939. Relations of the vegetation and climatic types in Nuevo Leon, Mexico. <i>The American Midland Naturalist</i> 21(3): 687-729.
Évaluateurs & contributeurs (3)Expert
assessor
Jerome, D. & Beckman, E.
contributor
Encina, J.
evaluator
Samain, M.-S. & Rivers, M.C.
1 erratum publié après l'évaluation.

Jerome, D. & Beckman, E. 2020. Quercus flocculenta (amended version of 2018 assessment). The IUCN Red List of Threatened Species 2020: e.T78917120A173545789. Accessed on 05 May 2026.

Répartition mondiale (heatmap GBIF)Construction en cours

0 obs · 0 cellules
Construction par partitions temporelles GBIF0%

Source : GBIF — observations agrégées par hexagones 0.2° × 0.2° (~22km). Filtre qualité : précision coordonnée < 10 km. Coloration quantile (q50/70/90/99). Fond carte : OpenFreeMap · © OpenStreetMap.

Distribution mondiale

Calcul de la distribution GBIF· ~10–60 s

Phénologie

Calcul du calendrier d'apparition· ~5–30 s

Consulter sur les bases externes

Observations & statuts

Bibliographie

Note nomenclaturale & synonymesExpert

Note nomenclaturale

TAXREF v18 — INPN/MNHN

Synonymes (3)— redirigent vers cette page

  • Quercus flocculenta f. incisaC.H.Mull.
  • Quercus flocculenta f. oblongifoliaC.H.Mull.
  • Quercus flocculenta var. typicaA.Camus

Sources : Catalogue of Life Cross-References (synonymes) · TAXREF v18 INPN/MNHN (commentaires FR).