EAPSI: Evaluating the Interactions Among Species Selected for Assisted Colonization as a New Conservation Strategy for Chinese Orchids

EAPSI：评估辅助定植物种之间的相互作用作为中国兰花的新保护策略

• 批准号: 1414633
• 负责人: Jason Downing
• 金额: $ 0.51万
• 依托单位: Downing Jason L
• 依托单位国家: 美国
• 项目类别: Fellowship Award
• 财政年份: 2014
• 资助国家: 美国
• 起止时间: 2014-06-01 至 2015-05-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1414633&HistoricalAwards=false
• 关键词: EAPSI; Evaluating; Interactions; Among; Species

The moving of species beyond their natural ranges in response to a changing climate, also known as "assisted colonization", is a newly-emerged and controversial conservation measure. As a rare example of such an effort, dozens of species of wild orchids in southwestern China were moved to higher elevation sites in anticipation of the completion of the Longtan reservoir near the Yachang National Orchid Reserve in Guangxi Province. One important factor to consider when undertaking such actions is to understand the interaction of the moved species with other species in their new ranges. This project will examine the beneficial fungi associated with the roots of selected orchid species in both the current and new ranges. This project will be conducted in collaboration with Dr. Gao Jiangyun, orchid ecologist and faculty at the Xishuangbanna Tropical Botanical Garden (XTBG) of the Chinese Academy of Sciences. The results will not only provide valuable insights into this debatable conservation strategy but will help promote research and science-based conservation of Chinese orchids.Under the context of climate change, understanding how range expansions can influence biotic relationships becomes more urgent since global changes may have the most impact on taxa that are heavily dependent on other taxa. Mycorrhizal fungi and plant interactions are among the most important of these vulnerable relationships. Using modern microbiological and DNA sequencing techniques, this project will identify the mycorrhiza associated with orchids that are part of the ongoing assisted colonization experiments at Yachang Reserve. After isolating and identifying the fungi in the root tissues, substrate samples will be collected to determine the distribution and abundance of compatible fungi in both the donor and recipient sites. The results of this project will be used to develop better protocols for this long-term project and will provide a critical evaluation on the role of biotic factors in the success of assisted colonization's. This NSF EAPSI award is funded in collaboration with the Chinese Ministry of Science and Technology.

气候变化导致物种迁移到其自然分布范围之外，也被称为“协助殖民”，这是一种新出现的有争议的保护措施。作为这种努力的一个罕见例子，中国西南部的几十种野生兰花被转移到海拔较高的地方，以期待广西省雅昌国家兰花保护区附近的龙潭水库建成。在采取这种行动时要考虑的一个重要因素是了解迁移物种与新分布区其他物种的相互作用。该项目将研究与当前和新范围内选定的兰花物种根相关的有益真菌。该项目将与中国科学院西双版纳热带植物园的兰花生态学家、教授高江云博士合作进行。研究结果不仅将为这一有争议的保护策略提供有价值的见解，而且将有助于促进中国兰花的研究和科学保护。在气候变化的背景下，了解范围扩张如何影响生物关系变得更加紧迫，因为全球变化可能对严重依赖其他类群的类群产生最大的影响。菌根真菌和植物的相互作用是这些脆弱的关系中最重要的。利用现代微生物和DNA测序技术，该项目将确定与兰花相关的菌根，这是雅昌保护区正在进行的辅助定殖实验的一部分。在分离和鉴定根组织中的真菌后，将收集基质样品以确定供体和受体部位中相容性真菌的分布和丰度。该项目的结果将用于为该长期项目制定更好的协议，并将对生物因素在辅助殖民成功中的作用进行重要评估。NSF EAPSI奖是与中国科技部合作资助的。