Ontologia

Quercus chihuahuensis

Trel.

LCLR Monde (IUCN)
  1. Plante
  2. Tracheophyta
  3. Magnoliopsida
  4. Fagales
  5. Fagaceae
Pays · région · aire protégée · écorégion · biome

Graphe en cours d’indexation

Calcul du tissu écologique de Quercus chihuahuensis.

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

Liste rouge IUCN

LC · Préoccupation mineure→Stable
Évaluation complète
Évaluation
2015 · v3.1
Altitude
400 – 2700 m
Profondeur
– m
État de la populationExpert
No information exists on a quantified population size for Q. chihuahuensis. This species, however, has a wide range and occurs fairly regularly throughout. A small subpopulation exists in the northern part of the Reserva de la Biosfera de La Michilía (Durango), which is a protected area. The vast majority of the population does lie outside of protected areas throughout Mexico. In the Sierra de Mazatán region, Q. chihuahuensis is considered one of four oaks among outstanding importance in this region. The relict subpopulations in Texas occur in Hudspeth County within the Quitman and Eagle Mountains, but the viability of the two subpopulations is unknown and extensive introgression with Q. grisea and Q. arizonica has been noted.

Menaces identifiées(3 menaces classées CMP-IUCN)

  • 2_3_2
    Small-holder grazing, ranching or farming
    Causing/Could cause fluctuationsMajority (50-90%)Ongoing
  • 6_1
    Recreational activities
    UnknownMinority (<50%)Ongoing
  • 7_1_3
    Trend Unknown/Unrecorded
    UnknownUnknownPast, Unlikely to Return
Description complète des menacesExpert
Cattle raising is the traditional and predominant productive activity in the Sierra de Mazatán area. Sheep raising on rancho Palo Bonito on top of the sierra is a recent activity according to local ranchers. Tourism is another known threat to this species especially during vacations when the area attracts some visitors to the oak woodland on top of the Sierra. Fires were known to be a threat to this area about a decade ago however, more recent field work has identified this threat to be at low levels of magnitude at present.

Habitats préférentiels (classification IUCN)

  • 3_4Shrubland - Temperate
  • 3_8Shrubland - Mediterranean-type Shrubby Vegetation
Mesures de conservation recommandéesExpert
This species only exists on two ex situ conservation sites in botanic gardens and arboreta worldwide.
Stress écologiques (7)Expert
  • 1_2Ecosystem degradation
  • 1_2Ecosystem degradation
  • 2_1Species mortality
  • 2_1Species mortality
  • 2_2Species disturbance
  • 2_2Species disturbance
  • 2_2Species disturbance
Usage & commerce (3)Expert
  • 3Medicine - human & veterinary
    subsistance
  • 7Fuels
    subsistance
  • 9Construction or structural materials
    subsistance
Niche IUCN globaleExpert

Royaumes biogéographiques

Nearctic

Systèmes (terrestre/eau douce/marin)

Terrestrial

Formes de croissance

Tree - large
Références bibliographiques (5)Expert
  1. IUCN. 2015. The IUCN Red List of Threatened Species. Version 2015-4. Available at: <a href="www.iucnredlist.org">www.iucnredlist.org</a>. (Accessed: 19 November 2015).
  2. le Hardÿ de Beaulieu, A. and Lamant, T. 2010. <i>Guide illustré des chênes</i>. Edilens.
  3. Sánchez-Escalante, J.J., Espericueta-Betancourt, M. and Castillo-Gámez, R.A. 2005. A Preliminary Floristic Inventory in the Sierra de Mazatán, Municipios of Ures and Mazatán, Sonora, México. Connecting mountain islands and desert seas: biodiversity and management of the madrean Archipelago II. U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station, Fort Collins, CO.
  4. A. Michael Powell. 1998. <i>Trees and Shrubs of the Trans-Pecos and Adjacent Areas</i>. University of Texas Press, Austin, TX.
  5. eFloras. 1997. Flora of North America. Vol. 3. Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA Available at: <a href="http://www.efloras.org/volume_page.aspx?volume_id=1003&flora_id=1">http://www.efloras.org/volume_page.aspx?volume_id=1003&flora_id=1</a>. (Accessed: 2015).
Évaluateurs & contributeurs (3)Expert
assessor
Kenny, L. & Wenzell , K.
evaluator
Oldfield, S.
facilitators
Kenny, L. & Wenzell , K.

Kenny, L. & Wenzell , K. 2015. Quercus chihuahuensis. The IUCN Red List of Threatened Species 2015: e.T78810736A78810739. 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

iNaturalist

Bibliographie

BHLOpenAlex
Note nomenclaturale & synonymesExpert

Note nomenclaturale

TAXREF v18 — INPN/MNHN

Synonymes (6)— redirigent vers cette page

  • Quercus chihuahuensis f. amplifoliaTrel.
  • Quercus chihuahuensis f. microphylloidesTrel.
  • Quercus chihuahuensis f. tenuisTrel.
  • Quercus infraluteaTrel.
  • Quercus jaliscensisTrel.
  • Quercus santaclarensisC.H.Mull.

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