多个同域分布入侵种对当地无尾两栖类的影响机制

The combined impacts of multiple co-occurring invasive species on native species is a novel and important research field in invasion ecology studies. This grant will focus on two worst aquatic invasive species in China: the American Bullfrog and the red swamp crayfish, which have co-invaded widely in the Zhoushan Archipelago, China. These two invaders have complicated interspecific interactions and shared negative effects on local species through predation, competition, and disease transmission, and therefore provide us a unique and ideal opportunity to explore how species complex interactions influence their impacts on native species. Based on field studies, mesocosm experiment, molecular techniques and ecological models, we will deeply explore how the species interactions shape their invasions success, and their joined impacts on local species. This program is theoretically important to invasion ecology by providing new insights into exploring the complex process of invasion process, and will be also helpful to the development of effective strategies to control invasive species.

伴随全球化时代越来越多的外来物种的加速引进，多个同域分布的外来种的共同入侵正愈发普遍。研究这些共同入侵种的综合生态学效应，不仅对评估生物入侵造成的当地生物多样性的损失至关重要，而且也将为我们了解外来物种入侵过程以及自然界物种共存机制提供重要理论基础。然而，与单一外来入侵种危害广受关注相比，很少研究探讨多个共同入侵种对当地物种的影响机制。本研究将以我国两种主要水生入侵种北美牛蛙和克氏原螯虾为研究对象，在两个物种已共同入侵且研究基础较好的浙江舟山群岛，利用两物种间独特的竞争－捕食－壶菌传播的多重互作模式，将野外研究－控制实验－分子技术－生态模型相结合，深入研究外来物种互作及对当地种的影响机制，探讨复杂入侵过程，发展对外来物种的防控和对当地种的保护策略。

伴随全球化时代越来越多的外来物种的加速引进，多个同域分布的外来种的共同入侵正愈发普遍。研究这些共同入侵种的综合生态学效应，不仅对评估生物入侵造成的当地生物多样性的损失至关重要，而且也会为我们了解外来物种入侵过程以及自然界物种共存机制提供重要理论基础。然而，与单一外来入侵种危害广受关注相比，很少研究探讨多个共同入侵种对当地物种的影响机制。本研究以我国两种主要水生入侵种北美牛蛙和克氏原螯虾为研究对象，在两个物种已共同入侵且研究基础较好的浙江舟山群岛，利用两物种间独特的竞争-捕食-壶菌传播的多重互作模式，将野外研究-控制实验-分子技术-生态模型相结合，同时在全球尺度整合相关互作类群的研究，深入探讨了外来物种互作及对当地种的影响机制及其复杂入侵过程，研究结果对不断增加的外来物种的防控和当地种保护策略的发展提供了科学依据。