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Gap analyses to support ex situ conservation of genetic diversity in Magnolia, a flagship group

Abstract

Worldwide about one third of all plant species is estimated to be threatened with extinction. Plants are generally under-represented in conservation. However, the global strategy for plant conservation (GSPC) sets forth 16 targets to halt the current and continuing loss of plant diversity within a framework for actions at global, regional, national and local levels. Target 8 of the GSPC directs that at least 75 % of threatened plant species be present in ex situ collections by 2020, but this target is far from being met. By analyzing where gaps in ex situ collections and research exist relative to diversity hotspots of threatened species, it is possible to identify and prioritize action. We undertake a gap analysis of ex situ collection needs in the genus Magnolia, a relatively well-known and valuable genus. Results indicate three main areas of biodiversity (China, Vietnam and Colombia) for the endangered Magnolia taxa. The present paper provides a critical overview of recent conservation activities carried out in the genus Magnolia throughout the world, focusing on genetic diversity analyses of the species.

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Acknowledgments

The assistance of the members of the BGCI (Botanical Gardens Conservation International) is gratefully acknowledged. We are grateful to The Friends of the Botanical Garden Ghent (De Vrienden van de Plantentuin Gent) and the Arboretum Wespelaar, for their help and support. This research was funded by the Fondation Franklinia (Ghent University project number E/01394/01).

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Correspondence to Eduardo Cires or Marie-Stéphanie Samain.

Appendix

Appendix

See Table 5.

Table 5 List of Magnolia taxa that have been investigated and covered by the present work

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Cires, E., De Smet, Y., Cuesta, C. et al. Gap analyses to support ex situ conservation of genetic diversity in Magnolia, a flagship group. Biodivers Conserv 22, 567–590 (2013). https://doi.org/10.1007/s10531-013-0450-3

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  • DOI: https://doi.org/10.1007/s10531-013-0450-3

Keywords

  • Biodiversity loss
  • Conservation
  • IUCN
  • Magnolia
  • Red List
  • Threatened species