Browsing Biology by Subject "paleolimnology"
Now showing items 1-8 of 8
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Characterizing current and past hydroecological conditions in shallow tundra ponds of the Hudson Bay Lowlands
(University of Waterloo, 2012-01-10)Due to accelerated climatic warming during the past fifty years, interest and concerns have been growing about changes in the ecological integrity of shallow freshwater ponds that dominate the landscape of the Hudson Bay ... -
Developing pre-industrial baselines from floodplain lake sediment cores to quantify the extent of metals pollution within the Alberta Oil Sands Region
(University of Waterloo, 2018-11-28)Oil sands mining operations began in 1967, but the onset of a monitoring program to assess water and sediment quality in the Athabasca River watershed began 30 years later. Consequently, no knowledge of pre-industrial, ... -
Evaluating the role of local climate change on reduced freshwater availability at the Peace-Athabasca Delta using paleolimnology
(University of Waterloo, 2022-06-02)Abundant small, shallow lakes across northern freshwater landscapes are particularly sensitive to alteration of hydrological processes, which makes them vulnerable to multiple potential stressors. At the Peace-Athabasca ... -
An interdisciplinary approach to monitoring the hydroecology of thermokarst lakes in Old Crow Flats, Yukon Territory, Canada
(University of Waterloo, 2012-09-28)Lake-rich thermokarst landscapes, such as Old Crow Flats (OCF) in northern Yukon, Canada have been identified as amongst the most vulnerable to climate change. This has raised concerns of the Vuntut Gwitchin First Nation ... -
Investigating the role of the Smoky River watershed on past ice-jam flood regimes at the Peace-Athabasca Delta via analysis of oxbow lake sediment cores
(University of Waterloo, 2022-06-06)The Peace-Athabasca Delta (PAD) in northern Alberta has been a focus of concern for decades due to decline in frequency and magnitude of ice-jam floods that sustain ecologically and culturally significant shallow perched ... -
Lakes of the Peace-Athabasca Delta: Controls on nutrients, chemistry, phytoplankton, epiphyton and deposition of polycyclic aromatic compounds (PACs)
(University of Waterloo, 2012-02-07)Floodplain lakes are strongly regulated by river connectivity because floodwaters exert strong influence on the water balance, the physical, chemical and biological limnological conditions, and the influx of contaminants. ... -
The origin, transformation and deposition of sediments in Lake Bosomtwe/Bosumtwi (Ghana, West Africa)
(University of Waterloo, 2010-05-21)Recent drought over West Africa (1970s-present) has been a global concern, and the ability to predict the frequency and severity of future droughts is important to mitigate the devastating socio-economic effects of drought. ... -
Spatiotemporal patterns of arsenic, antimony, and lead deposition in a sub-arctic gold mining region of Canada
(University of Waterloo, 2021-01-25)Mining operations at Giant and Con mines (Northwest Territories, Canada) resulted in the release of >20,000 tonnes of arsenic trioxide (As2O3) into the atmosphere, mainly during the 1950s, which were deposited on the ...