Silent Spring again? Song Birds Decline Linked to Environment Mercury (寂静的春天再次来临？鸟类种群数量下降与环境汞污染相关)
Dr. Yanju Ma, University of Western Ontario, Canada.
Seminar Hall，SKL (亚热带农业生物资源保护与利用国家重点实验室学术报告厅)
16:30-17:30, November 27th (Tuesday)
Yanju Ma is an eco-toxicologist that has great interests in understanding the role of environmental stressors in ecosystems, most particularly contaminants in birds. During her Ph. D., she studied the global pollutant, mercury (Hg) in migratory songbirds at University of Western Ontario, Canada. By applying advanced methodologies (wind tunnel and stable isotopes), the studies that she carried out demonstrated the negative effects of environmental Hg on songbird migration and survival. Specifically, her findings suggest migratory songbirds that refuel at a highly contaminated stopover site can rapidly bioaccumulate Hg in blood, muscles and organs within 2-weeks, and treated birds had a reduced flight ability. Additionally, Hg exposure in the breeding areas could have a carry-over effect to reduce migration success and survival of insectivorous songbirds that undergo extensive and demanding migratory journeys.