John J. Wiens
【个人简介】：John J. Wiens is a Professor in the Department of Ecology and Evolutionary Biology at the University of Arizona. Prior to coming to Arizona in 2013, he was Associate and Assistant Professor at Stony Brook University in New York (2003–2012) and before that was a curator of herpetology at the Carnegie Museum of Natural History in Pittsburgh (1995–2002). He obtained his Ph.D. at the University of Texas at Austin (1995), and his B.S. degree at the University of Kansas (1991). He has served as an Associate Editor for several journals in ecology and evolution (e.g. American Naturalist, Ecography, Ecology Letters, Evolution, Systematic Biology) and as Editor-in-Chief of the Quarterly Review of Biology. He is an ISI Highly Cited Researcher and a winner of the President’s Award of the American Society of Naturalists. He has published >250 scientific papers. He studies many questions in ecology and evolutionary biology, and especially the origins of biodiversity patterns and the impacts of climate change. Major research questions include: (1) how many species exist on Earth? (2) why do different groups of organisms have different numbers of species? (3) why do different habitats and regions differ in species richness? (4) how will climate change impact biodiversity in the future? He is also interested in phylogeny, speciation, sexual selection, and niche evolution, and the biology of reptiles and amphibians.
【报告题目】：How will climate change impact biodiversity?
【报告摘要】：In this talk, I will describe recent research from my lab examining climate-related extinctions, at both the global and local scales. In the first part, I will describe our research on extinctions that have already occurred. This research, based on resurvey studies from the literature, suggests that nearly half of surveyed plant and animal species have experienced climate-related local extinctions. Combining these results with future climate projections suggests that most species will not disperse quickly enough to avoid extinction, but that many species might survive by shifting their climatic niches. Overall, these estimates (and others) project that ~20–30% of Earth's species may be lost under pessimistic climate-change scenarios. In the second part, I will describe our local research on a lizard (Sceloporus jarrovii) in southeastern Arizona, combining field surveys, climatic data, and population genomics. Comparison of our results to those from other species suggests that this species experienced ~70 years worth of climate-related local extinction in the last 7 years. Local extinction rates have recently tripled in this species, and ~3 million year old lineage is on the brink of extinction. The results also show surprising variability in which populations have gone extinct and which have survived. This variability can be explained by different rates of climate change and by different levels of genetic variation among populations.
刘慧
【个人介绍】：刘慧，中国科学院华南植物园研究员，博士生导师，植物生理生态学方向。2005年北京师范大学本科，2008年中国科学院植物研究所硕士，2012年英国谢菲尔德大学博士，2012年在中国科学院华南植物园工作至今，2018-19年在美国亚利桑那大学访问。共发表SCI论文60余篇，代表论文包括The Innovation、Nature Ecology & Evolution、Science Advances、New Phytologist (2)、Journal of Experimental Botany (2)、Functional Ecology (封面文章) 等。任Plant Diversity、Biological Diversity编委，The Innovation、Eco-Environ. & Health青年编委。入选国家级青年人才计划，中国科学院青年创新促进会优秀会员、广东省杰出青年等。
【报告题目】：全球尺度植物的水热适应策略
【报告摘要】：植物水热适应性对植物的存活、生长和分布至关重要，针对全球变化下植物的水热适应机理这一核心科学问题，采用生理实验、演化分析、生态模型等方法，以“性状-环境-分布-演化”为框架开展研究，案例包括：1)多类群植物性状的演化保守性及其水热生态适应策略；2)全球植物气候生态位的时空格局及其演化规律；3)全球植物的碳-水-热协同假说；4)植物功能性状变异的环境和演化驱动机制，及其和生物多样性研究的内在联系。这些研究对评估和预测全球变化下植物的适应潜力具有重要意义。
