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dc.contributor.author MacLellan, Patricia. en_US
dc.date.accessioned 2009-12-01T20:15:47Z
dc.date.available 2009-12-01T20:15:47Z
dc.date.issued 1982 en_US
dc.identifier ocm72792811 en_US
dc.identifier.uri http://hdl.handle.net/1993/3451
dc.description.abstract The floristic variation was examined along the high voltage direct current (HVDC) transmission line right-of-way, which extends from the 50oN to the 56oN latitude in Manitoba. Over its 895 km length the right-of-way intersects six of the recognized natural vegetation zones in the province. The right-of-way (ROW) plant community at each site was compared to an adjacent, relatively undisturbed community, which was designated as a control area (CONTROL). The ROW communities differ from the CONTROL communities in both species composition and physiognomy. The majority of ROW communities are characterized by a high graminold richness and a high graminoid cover, principally as a result of such disturbances as grazing, mowing, herbicide treatment, and fire. Most of the CONTROL communities are elther woodland or forest areas. The overstory of the CONTROL communities is dominated by aspen (Populus tremuloides) in the southern woodlands, while in the northern forests the canopy is comprised mainly of either black spruce (Picea mariana), jack pine (Pinus banksiana), or aspen, or a mixture of these... en_US
dc.format.extent x, 181 [i.e. 213] leaves : en_US
dc.format.extent 9572708 bytes
dc.format.mimetype application/pdf
dc.language en en_US
dc.language.iso en_US
dc.rights The reproduction of this thesis has been made available by authority of the copyright owner solely for the purpose of private study and research, and may only be reproduced and copied as permitted by copyright laws or with express written authorization from the copyright owner. en_US
dc.title Floristic variation along the HVDC transmission line right-of-way in Manitoba en_US
dc.degree.discipline Botany en_US
dc.degree.level Master of Science (M.Sc.) en_US


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