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Heavy metal accumulation in a feather moss, Pleurozium schreberi, and soils in Northwestern Ontario / Robert J. K. Rinne. -- (1977)It has been determined that carpet-forming mosses are good indicators of heavy metal deposition, since they are dependent on their supply of nutrients from above rather than from the substrate. Samples of the common ...
Use of a single epiphyte lichen species Hypogymnia physodes as an indicator of air quality in northern Ontario / by Helmut N. Pfeiffer (1988)It has been determined that lichens are excellent indicators of regional air quality, since they are long-lived and totally dependent on atmospheric sources for nutrients. In the summer of 1987, samples of the ...
Vegetation and vegetation-environment relationships in a muskeg-fen near Thunder Bay, Ontario / Maureen Victoria Ketcheson. -- (1979)William's Bog (a.k.a. William Bog, Williams Bog) is located in Thunder Bay, Northwestern Ontario.