Alnus formosana
(Burkill) Makino
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Pays · région · aire protégée · écorégion · biome
Graphe en cours d’indexation
Calcul du tissu écologique de Alnus formosana.
Le graphe apparaîtra automatiquement dès que le calcul est terminé (rafraîchissement toutes les 5s).
Liste rouge IUCN
LC · Préoccupation mineure→Stable- Évaluation
- 2014 · v3.1
- Altitude
- 400 – 2900 m
- Profondeur
- – m
État de la populationTexte officiel évaluation IUCNExpert
This species is common, forming the most dominant deciduous pure forests throughout the mid-altitude mountains on the island. It is widely distributed along New Central Cross-Island Highway from 112 km to Tataka area.
Menaces identifiées(1 menace classée CMP-IUCN)
8_2Problematic native species/diseasesRapid DeclinesMajority (50-90%)Past, Likely to Return
Description complète des menacesTexte détaillé évaluation IUCNExpert
Leaf Beetle (Linaeidea formosana) was found in Yushan National Park in 2008 and subpopulations across the whole mountain areas were damaged by the beetles. The trees have been gradually recovering and are no longer withering or losing leaves. This is one of the major pests of Alnus formosana, with its larva and imago both feeding on new leaves and buds.
Habitats préférentiels (classification IUCN)
1_4Forest - Temperate
Mesures de conservation recommandéesStratégies de conservation IUCNExpert
There are no conservation actions currently reported or needed for this species, as it appears to naturally regenerate well following disturbance. However, as there is a known pest posing a threat to the species, it would benefit from monitoring this pest to ensure that the wild population does not become threatened by the spread of the pest.
Priorités de recherche (1)Research Needed Classification — IUCNExpert
1_5Threats
Niche IUCN globaleRealms · Systems · LMEs · Growth forms · FAOs — biogéographie IUCNExpert
Royaumes biogéographiques
Indomalayan
Systèmes (terrestre/eau douce/marin)
Terrestrial
Formes de croissance
Tree - large
Références bibliographiques (9)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).
- 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).
- 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>.
- Missouri Botanical Garden. 2013. Tropicos. Missouri Available at: <a href="www.tropicos.org">www.tropicos.org</a>.
- Haivangang, B. 2011. The Battle between Formosan Alder and Leaf Beetle - Keeping Tabs on Formosan Alder in Tataka Area in Yushan National Park. Taiwan Available at: <a href="http://np.cpami.gov.tw/english/index.php?option=com_mgzen&view=detail&catid=30&id=387&Itemid=67&limitstart=1">http://np.cpami.gov.tw/english/index.php?option=com_mgzen&view=detail&catid=30&id=387&Itemid=67&limitstart=1</a>. (Accessed: 6, Feb).
- The Plant List. 2010. The Plant List. Available at: <a href=" http://www.theplantlist.org/"> http://www.theplantlist.org/</a>. (Accessed: 2013).
- Grimshaw, J. and Bayton, R. 2009. <i>New Trees: Recent Introductions to Cultivation</i>. Kew Publishing, Kew.
- eFloras. 2008. Flora of China. Available at: <a href="www.efloras.org">www.efloras.org</a>.
- Huang, T.C. 1996. <i>Flora of Taiwan</i>. Editorial Committee of the Flora of Taiwan, Taipai, Taiwan.
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. Alnus formosana. The IUCN Red List of Threatened Species 2014: e.T194587A2351128. Accessed on 05 May 2026.
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
Cartographie
Note nomenclaturale & synonymesDétails taxonomiques + synonymes CoLExpert
Note nomenclaturale
TAXREF v18 — INPN/MNHNSynonymes (4)— redirigent vers cette page
- Alnus japonicaSiebold & Zucc.
- Alnus maritima var. japonicaRegel
- Alnus japonica var. formosana(Burkill) Callier
- Alnus maritima var. formosanaBurkill
Sources : Catalogue of Life Cross-References (synonymes) · TAXREF v18 INPN/MNHN (commentaires FR).