Browsing Robert Lenthall Jefferies Collection by Subject "Churchill"
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Seed and vegetation dynamics in undamaged and degraded coastal habitats of the Hudson Bay lowlands. (Ottawa : National Library of Canada = Bibliotheque nationale du Canada, 2000)Grubbing and grazing by increasing numbers of lesser snow geese (Anser caerulescens caerulescens) have led to loss of vegetation and soil degradation in salt marshes and on beach ridges. These changes have had a deleterious ...
Soil Microbial and Nutrient Dynamics During Late Winter and Early Spring in Low Arctic Sedge Meadows (Toronto : University of Toronto, 2010)Microbial activity occurs year-round in Arctic soils, including during the winter when soils are frozen. From 2004 to 2008 I monitored soil microbial and nutrient dynamics in low Arctic wet and dry sedge meadows near ...