Betula globispica

Shirai

Plante

NTLR Monde (IUCN)

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

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Calcul du tissu écologique de Betula globispica.

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Liste rouge IUCN

NT · Quasi menacée?Inconnue

Évaluation complète

Évaluation: 2014 · v3.1
Altitude: – m
Profondeur: – m

État de la populationTexte officiel évaluation IUCNExpert

Betula globispica is a very distinct relict species from Honshu with no very close living relatives anywhere else in the world. It exists as small subpopulations within its range and is described as rare in the wild. This species grows on steep mountain slopes and rock outcrops and populations are therefore considered to be fragmented.

Menaces identifiées(2 menaces classées CMP-IUCN)

11_2
Droughts
Ongoing
8_1_1
Unspecified species
Ongoing

Description complète des menacesTexte détaillé évaluation IUCNExpert

This species is susceptible to drought, even as a relatively well-established tree, which could lead to future declines, potentially exacerbated by climate change. Its existence as small subpopulations also makes these populations susceptible to pest and disease and human activities, such as land clearance.

Habitats préférentiels (classification IUCN)

1_4Forest - Temperate

Mesures de conservation recommandéesStratégies de conservation IUCNExpert

This species is very rare in cultivation. Its self compatibility should allow it to be propagated easily, although some seedlings seem much slower growing than others and may be suffering from the effects of inbreeding depression. It can be propagated easily by seed although seedlings are susceptible to slugs and drought.

This species was assessed as Rare in the 1997 IUCN Red List of Threatened Plants. This species is reported to be a conservation priority by Ashburner and McAllister (2013).

Further research to determine population numbers is required. Both in situ and ex situ conservation would benefit this species.

Actions de conservation (3)Conservation Actions Classification Scheme — IUCNExpert

1_2Resource & habitat protection
3_2Species recovery
3_4_2Genome resource bank

Stress écologiques (3)Stresses Classification — IUCNExpert

1_2Ecosystem degradation
2_2Species disturbance
2_2Species disturbance

Priorités de recherche (1)Research Needed Classification — IUCNExpert

1_2Population size, distribution & trends

Niche IUCN globaleRealms · Systems · LMEs · Growth forms · FAOs — biogéographie IUCNExpert

Royaumes biogéographiques

Palearctic

Systèmes (terrestre/eau douce/marin)

Terrestrial

Formes de croissance

Tree - large

Références bibliographiques (7)Sources scientifiques de l'évaluation IUCNExpert

IUCN. 2014. The IUCN Red List of Threatened Species. Version 2014.3. Available at: <a href="www.iucnredlist.org">www.iucnredlist.org</a>. (Accessed: 13 November 2014).
Missouri Botanical Garden. 2013. Tropicos. Saint Louis, Missouri. Available at: <a href="www.tropicos.org">www.tropicos.org</a>.
Ashburner, K. and McAllister, H.A. 2013. The Genus Betula: A Taxonomic Revision of Birches. Kew Publishing, Richmond, Surrey.
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>.
USDA, ARS, National Genetic Resources Program. 2013. Germplasm Resources Information Network, GRIN (Online database). Beltsville, Maryland Available at: <a href="http://www.ars-grin.gov/cgi-bin/npgs/html/family.pl?144">http://www.ars-grin.gov/cgi-bin/npgs/html/family.pl?144</a>. (Accessed: December 13).
The Plant List. 2010. The Plant List. Available at: <a href=" http://www.theplantlist.org/"> http://www.theplantlist.org/</a>. (Accessed: 2013).
Ohwi, J. 1965. Betulaceae. In Flora of Japan. Smithsonian Institution, Washington, D.C.

Évaluateurs & contributeurs (2)Personnes ayant contribué à l'évaluation IUCNExpert

assessor

Shaw, K., Roy , S. & Wilson, B.

evaluator

Oldfield, S. & Rivers, M.C.

Shaw, K., Roy , S. & Wilson, B. 2014. Betula globispica. The IUCN Red List of Threatened Species 2014: e.T194567A2349829. Accessed on 05 May 2026.