BIOL 3P85 Lecture Notes - Lecture 9: Bottom Trawling, Industrial Wastewater Treatment, Habitat Fragmentation
27 Jun 2015
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Document Summary
One of the chemical companies reported a spill of perchlorethylene, a drycleaning solvent, in. August 1985, and there"s evidence it"s part of the blob. But some geologists believe the blob is also composed of chemical waste oozing upwards from underground wells. Strip mining/quarrying involve overburden removal, runoff from sites, dust, erosion deep mines have spoil sites, collapse areas, acid drainage oil and gas: roads, ponds, brine disposal, spillage, pipelines. Habitat loss to transportation/navigation: airports and harbors cover large areas and demand large amounts of sand and gravel fill. 1 hectare asphalt per 12 cars drainage alteration, corridor disruption, habitat fragmentation. Shipping: dredge canals, change basins, destroy riparian zones, disposal of spoils, maintenance dredging. Fragmentation and isolation of wildlife habitat direct habitat conversion. Habitat loss to urbanization: modification of hydrology and climate, modification of matrix continued disturbance requires massive transportation network to other habitat-damaging activities.
