Ontologia

Betula delavayi

Franch.

  1. Plante
  2. Tracheophyta
  3. Magnoliopsida
  4. Fagales
  5. Betulaceae
Pays · région · aire protégée · écorégion · biome

Graphe en cours d’indexation

Calcul du tissu écologique de Betula delavayi.

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

Liste rouge IUCN

DD · Données insuffisantes↘Décroissante
Évaluation complète
Évaluation
2018 · v3.1
Altitude
0 – 2400 m
Profondeur
– m
État de la populationExpert
There is no information about the population of the species.

Menaces identifiées(4 menaces classées CMP-IUCN)

  • 5_3_1
    Intentional use: (subsistence/small scale) [harvest]
    UnknownOngoing
  • 5_3_2
    Intentional use: (large scale) [harvest]
    UnknownOngoing
  • 5_3_3
    Unintentional effects: (subsistence/small scale) [harvest]
    UnknownOngoing
  • 5_3_4
    Unintentional effects: (large scale) [harvest]
    UnknownOngoing
Description complète des menacesExpert
Deforestation is common within Xizang (Tibet). It therefore could pose a threat to this species.

Habitats préférentiels (classification IUCN)

  • 1_4Forest - Temperate
  • 3_4Shrubland - Temperate
Mesures de conservation recommandéesExpert
This species is held in six ex situ collections (BGCI 2017). This species has been cultivated at Liverpool University Botanic Gardens. It is a self-incompatible species, therefore successful establishment in cultivation will probably depend on the maintenance of at least one breeding population to provide viable seed for wide distribution. Cuttings taken from seedlings root very easily and viable seed which comes true is produced where the different clones are grown together. This species would benefit from further research and increased conservation action through in situ and ex situ conservation.
Stress écologiques (8)Expert
  • 2_1Species mortality
  • 2_1Species mortality
  • 2_1Species mortality
  • 2_1Species mortality
  • 2_2Species disturbance
  • 2_2Species disturbance
  • 2_2Species disturbance
  • 2_2Species disturbance
Priorités de recherche (2)Expert
  • 1_2Population size, distribution & trends
  • 2_1Species Action/Recovery Plan
Niche IUCN globaleExpert

Royaumes biogéographiques

Palearctic

Systèmes (terrestre/eau douce/marin)

Terrestrial

Formes de croissance

Tree - small
Références bibliographiques (6)Expert
  1. 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).
  2. Govaerts, R. 2013. World Checklist of Betulaceae. Facilitated by the Royal Botanic Gardens, Kew Available at: <a href="http://www.kew.org/wcsp/">http://www.kew.org/wcsp/</a>.
  3. Missouri Botanical Garden. 2013. Tropicos. Saint Louis, Missouri. Available at: <a href="www.tropicos.org">www.tropicos.org</a>.
  4. Ashburner, K. and McAllister, H.A. 2013. <i>The Genus </i>Betula<i>: A Taxonomic Revision of Birches</i>. Kew Publishing, Richmond, Surrey.
  5. The Plant List. 2010. The Plant List. Available at: <a href=" http://www.theplantlist.org/"> http://www.theplantlist.org/</a>. (Accessed: 2013).
  6. Grimshaw, J. and Bayton, R. 2009. <i>New Trees: Recent Introductions to Cultivation</i>. Kew Publishing, Kew.
Évaluateurs & contributeurs (3)Expert
assessor
Beech, E.
evaluator
Oldfield, S.
institutions
Botanic Gardens Conservation International

Beech, E. 2018. Betula bomiensis. The IUCN Red List of Threatened Species 2018: e.T194275A2308616. 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 (11)— redirigent vers cette page

  • Betula bomiensisP.C.Li
  • Betula chinensis var. delavayi(Franch.) C.K.Schneid.
  • Betula delavayi var. delavayi
  • Betula delavayi var. forrestiiW.W.Sm.
  • Betula delavayi var. forrestiiFranch.
  • Betula delavayi var. microstachyaP.C.Li
  • Betula delavayi var. microstachyaFranch.
  • Betula delavayi var. polyneuraFranch.
  • Betula delavayi var. polyneuraHu ex P.C.Li
  • Betula delavayi var. polyneuraL.C.Hu
  • Betula forrestii(W.W.Sm.) Hand.-Mazz.

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