Effects of the White River Ash Event and Climate Change on Aquatic Ecosystems in the Southwest Yukon

"Freshwater lake environments are affected by disturbances on several scales that influence the composition of biological communities. A volcanic eruption is an abrupt and severe disturbance, and evidence of its impact is seen in lake sediments and soils as a layer of ash. These volcanic deposits affect aquatic ecosystems in lakes: large volumes of tephra can literally smother organisms living at the sediment-water interface, though the thinner layers of ash deposited farther from the source may have more subtle impacts. A less catastrophic, more gradual disturbance affecting aquatic ecosystems is climate change. Variations in temperature and precipitation over time indirectly influence the aquatic environment and have the potential to alter species composition \nand abundance."

Aquatic ecosystem · Climate change · Ecosystem · Geography · Physical geography · White (mutation) · Climate change and permafrost · Ecology · Environmental Science · Geology · Geology and Paleoclimatology Research · Oceanography · Peatlands and Wetlands Ecology

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  Open Access•Stephen D Robinson•ARCTIC•2001

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• The Mt Logan Holocene—late Wisconsinan isotope record

  Open Access•David Fisher, E C Osterberg et al.•The Holocene•2008

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