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Hungry Ponds in a Thawing World

Wed. Oct. 17 12:30 PM - Wed. Oct. 17 01:20 PM
Location: 5L24 Lockhart Hall

Tiny ponds are an important and ubiquitous feature of circumpolar and subarctic landscapes.  Covering 25 to 40% of the land surface, they act as a long-term carbon stores, regulate the energy balance, and serve as habitat for niche species. Yet their fate under a changing climate is uncertain. As temperatures warm and permafrost thaws, tiny ponds may evaporate or see their shorelines collapse, threatening their sustainability as water bodies and changing the ecological capacity of the subarctic. Further, the release of nutrients from thawing permafrost can stimulate these otherwise nutrient-limited ("Hungry") environments. This talk will explore research around the water balance and nutrient status of ponds in the Hudson Bay Lowlands and their potential trajectory in the coming decades, and will consider the importance of these processes at a global scale. 
 
Dr. Matt MorisonDr. Morison is a postdoctoral fellow in the Department of Geography and Environmental Management at the University of Waterloo and an instructor at the University of Manitoba.   He is an alumnus of The University of Winnipeg, where he studied math and geography.  He graduated in 2012 and went on to complete his PhD at the University of Waterloo in 2018. (Photo courtesy of M. Morison)

A light lunch and refreshments provided by GESA will accompany the talk.