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dc.contributor.authorGaley, M.L.
dc.contributor.authorRajakaruna, N.
dc.contributor.authorVan der Ent, A.
dc.contributor.authorIqbal, M.C.M.
dc.date.accessioned2017-05-15T08:16:38Z
dc.date.available2017-05-15T08:16:38Z
dc.date.issued2017
dc.identifier.citationGaley, M.L. et al. 2017. Ultramafic geoecology of South and Southeast Asia. Botanical studies, 58: Article no 18. [http://www.as-botanicalstudies.com/]en_US
dc.identifier.issn1817-406X
dc.identifier.issn1999-3110 (Online)
dc.identifier.urihttp://hdl.handle.net/10394/23236
dc.identifier.urihttp://dx.doi.org/10.1186/s40529-017-0167-9
dc.identifier.urihttps://as-botanicalstudies.springeropen.com/articles/10.1186/s40529-017-0167-9
dc.description.abstractGlobally, ultramafic outcrops are renowned for hosting floras with high levels of endemism, including plants with specialised adaptations such as nickel or manganese hyperaccumulation. Soils derived from ultramafic regoliths are generally nutrient-deficient, have major cation imbalances, and have concomitant high concentrations of potentially phytotoxic trace elements, especially nickel. The South and Southeast Asian region has the largest surface occurrences of ultramafic regoliths in the world, but the geoecology of these outcrops is still poorly studied despite severe conservation threats. Due to the paucity of systematic plant collections in many areas and the lack of georeferenced herbarium records and databased information, it is not possible to determine the distribution of species, levels of endemism, and the species most threatened. However, site-specific studies provide insights to the ultramafic geoecology of several locations in South and Southeast Asia. The geoecology of tropical ultramafic regions differs substantially from those in temperate regions in that the vegetation at lower elevations is generally tall forest with relatively low levels of endemism. On ultramafic mountaintops, where the combined forces of edaphic and climatic factors intersect, obligate ultramafic species and hyperendemics often occur. Forest clearing, agricultural development, mining, and climate change-related stressors have contributed to rapid and unprecedented loss of ultramafic-associated habitats in the region. The geoecology of the large ultramafic outcrops of Indonesia’s Sulawesi, Obi and Halmahera, and many other smaller outcrops in South and Southeast Asia, remains largely unexplored, and should be prioritised for study and conservationen_US
dc.language.isoenen_US
dc.publisherSpringeren_US
dc.subjectAdaptationsen_US
dc.subjectConservationen_US
dc.subjectEdaphic endemismen_US
dc.subjectEdaphic floraen_US
dc.subjectExtreme environmentsen_US
dc.subjectGeobotanyen_US
dc.subjectPlant–soil relationsen_US
dc.subjectSerpentine vegetationen_US
dc.subjectUltramafic plantsen_US
dc.subjectMetal hyperaccumulatorsen_US
dc.titleUltramafic geoecology of South and Southeast Asiaen_US
dc.typeArticleen_US
dc.contributor.researchID24678104 - Rajakaruna, Nishanta


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