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Biodiversity and Conservation

, Volume 29, Issue 2, pp 381–391 | Cite as

In-situ and ex situ pollination biology of the four threatened plant species and the significance for conservation

  • Rong Tang
  • Ying Li
  • Yulin Xu
  • Johann Schinnerl
  • Weibang SunEmail author
  • Gao ChenEmail author
Original Paper

Abstract

Both in situ and ex situ conservation are important strategies for protecting threatened plant species. Nevertheless, the success of conservation depends on whether the plant species can naturally regenerate and accomplish its life cycle over a long-term. Here we studied the pollination biology of the threatened species Hibiscus aridicola, Amorphophallus albus, Stemona parviflora and S. japonica aiming to get data about pollination strategies, pollinators as well as mating systems. These experiments were performed at Kunming Botanical Garden (KBG) for ex situ and the plant species’ natural habitat for in situ conservation. The results indicated that H. aridicola is self-compatible and had pollinators under both ex situ and in situ conditions. The other three species are all self-incompatible and a limited number of pollinators for S. parviflora and S. japonica were observed at cultivated and natural habitats. Amorphophallus albus had no pollinators at KBG but a large number of rove beetles (Atheta sp.) could be observed in the plant species’ natural habitat. This resulted in a high fruit set under natural conditions (73.3%, n = 30). The results showed clearly, that appropriate pollinators for the four plant species are not present all the time and all localities, which further influences the reproduction success of a plant species. Hence, for a successful conservation, it is vital to assess the species reproduction strategy prior deciding whether in situ and/or ex situ conservation should be carried out.

Keywords

Amorphophallus albus Ex situ and in situ conservation biology Hibiscus aridicola Mating system Pollination Stemona japonica Stemona parviflora 

Notes

Acknowledgements

We thank Le Zhang for H. aridicola data collection and Professor Hong-Zhang Zhou for determining the rove beetles. Support for this study was provided through grants from the NSFC-Yunnan joint fund to support key projects (U1602264), the Yunnan Science and Technology Innovation Team Program for Plant Species with Extremely Small Populations Conservation and Utilization (2019HC015), the National Natural Science Foundation of China (31670322), and the Young Academic and Technical Leader Raising Foundation of Yunnan Province (2015HB091).

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Copyright information

© Springer Nature B.V. 2019

Authors and Affiliations

  1. 1.Yunnan Key Laboratory for Integrative Conservation of Plant Species with Extremely Small Populations, Kunming Institute of BotanyChinese Academy of SciencesKunmingChina
  2. 2.Key Laboratory for Plant Diversity and Biogeography of East Asia, Kunming Institute of BotanyChinese Academy of SciencesKunmingChina
  3. 3.University of Chinese Academy of ScienceBeijngChina
  4. 4.College of Horticulture and LandscapeYunnan Agricultural UniversityKunmingChina
  5. 5.Department of Botany and Biodiversity ResearchUniversity of ViennaViennaAustria

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