报告题目： Linking the ecology of streams and the forest — experimental studies of cross-ecosystem resource flows and population responses
报告人： Prof. John S. Richardson（UBC大学 教授）
时间： 2016年05月13日（周五）下午13:30
地点： 学研大厦A0104
报告人简介：
John S. Richardson, UBC 大学森林科学和环境保护系主任、同时任职于Peter Wall 高等研究院和动物科学系。主要研究领域为河流及流域生态学、群落和群体生态学，地下无脊椎动物及保护生物学。Richardson教授担任多个重要期刊编辑，已在Nature Geoscience, Trends in Ecology & Evolution, Biology Letters, Global Change Biology, Environmental Reviews, Ecosphere, Ecosystems, Ecology, Oikos, Forest Ecology and Management, Marine Ecology 等重要国际期刊上发表论文近200篇。
报告摘要：
Many adjacent ecosystems are linked by cross-ecosystem resource subsidies, which are important ecological flows of energy and nutrients. Examples include leaf litter and invertebrates falling into streams, salmon carcasses returning to freshwater, etc. In a series of experiments we have tested hypotheses about the quantitative consequences of the resource flows on recipient consumer populations and communities. Using experimental augmentation or exclusion of leaf litter or terrestrial invertebrates to streams we have demonstrated that consumer populations are often limited by the rates of flows of these resources. The quality and timing of these resource inputs is also important, demonstrating an adaptation to the consistency of these inputs. Land management, as in management of riparian area during forest harvesting, can alter the magnitude, quality and timing of these flows. Our theory has now developed to a stage where we can test specific hypotheses about how shifts in the magnitude, quality and timing of cross-ecosystem resource subsidies can affect recipient populations and their communities.

本期论坛联系人：毛建丰 副教授
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生物科学与技术学院