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High-Latitude Responses of Diatom and Chironomid Assemblages to Regional Climate Changes and Other Environmental Stressors
(2015-07-03)
High-latitude freshwater ecosystems are amongst the most vulnerable to climate change impacts. However, the response to warming is rarely straightforward and may be modulated by local or regional factors, producing variability ...
Large-Scale Exogenous Forcing of Long-Term Pacific Salmon Production and Ecosystem Interactions in Western North America
(2008-09-27)
Pacific salmon (Oncorhynchus spp.) production strongly influences the ecosystems, cultures and economies of the Northeast Pacific. Historical variability in population sizes is complex, reflecting natural and human drivers. ...
A Paleolimnological Examination of Cladoceran (Branchiopoda, Crustacea) Assemblages in Softwater Nova Scotia (Canada) Lakes and Their Responses to Multiple Stressors
(2012-08-22)
The Canadian province of Nova Scotia has an abundance of lakes impacted by multiple stressors, including acidification, lakewater calcium (Ca) decline, climate change, and fish introductions. In spite of this, little is ...
A comparative paleolimnological assessment of the influences of early Arctic population groups on freshwater ecosystems from southern Baffin Island, Nunavut
(2011-10-04)
Recent paleolimnological research in the eastern Canadian high Arctic on the ecological impact of the Thule c.1000-1500 AD has documented the influence of prehistoric anthropogenic activities. Six lake and pond sites ...
Paleoecological Reconstruction of the Holocene Fire Regime at Mud Lake, Eastern Ontario, near St. Lawrence Islands National Park
(2010-02-01)
Wildfire is an ecological disturbance that plays an important role in ecosystem function and interacts with climate and vegetation, relationships that may be altered by ongoing climate change. Insights from paleoecology ...
Assessing long-term changes in chironomid assemblages linked to past fluctuations in Leach’s Storm-Petrel populations on islands in the Western Atlantic Ocean
Nutrient loading is an important factor that can indirectly deplete dissolved oxygen concentrations in lakes. In environments where seabirds nest and breed, guano is a prominent source of nutrients that can eutrophy ...
Importance of Climate on Boreal Lakes from Northwest Ontario Over Millennia: A Paleolimnological Perspective
(2014-12-08)
The lack of long-term data on the response of boreal lakes to climate change has been seen as an impediment to the assessment of the vulnerability and risks that northwest Ontario faces in light of future climate change. ...
A diatom-based paleolimnological investigation of historical water-quality and ecological changes in the Lake of the Woods, Ontario
(2010-05-28)
A two-part paleolimnological study was conducted to examine changes in historical and modern water-quality in Lake of the Woods (LoW) in response to multiple stressors, such as climate change and shoreline residential ...
Assessing Thule Inuit impacts on High Arctic lakes and ponds : a paleolimnological approach
(2008-01-03)
Until recently it has been widely believed that significant anthropogenic influences on the environment began in Canada following the onset of European colonization. However, our paleolimnological data indicate that ...
Diatom Community Responses to Water Quality Improvements in Lakes Recovering From Acidification and Metal-Contamination Near Wawa, Ontario, Canada: a Paleolimnological Perspective
(2009-04-30)
In response to sulphur dioxide emission reductions in North America and Europe, there has been a recent shift in research focus towards understanding ecosystem recovery. Evidence for reversibility in the effects of ...