|Year||Title (Author, Description)||File Download|
Curing Environmental Dis-Integration: A Prescription for Integrating the Government of Alberta's Strategic Initiatives
Danielle Droitsch, Steven A. Kennett, and Dan Woynillowicz
The Government of Alberta lacks the regulatory ability to manage the cumulative environmental impacts of the industrial development and other human activities now occurring across Alberta's landscapes. A new approach to environmental decision-making is needed to avoid continued decline in key indicators of environmental quality and depletion of Alberta's natural capital.
|Contact ALCES for Danielle Droitsch, Steven A. Kennett, and Dan Woynillowicz, 2008|
CUMULATIVE EFFECTS THRESHOLDS FOR ARCTIC GRAYLING IN THE WAPITI RIVER WATERSHED
Adam Paul Norris
Intensity and types of land use have changed rapidly in the last century and in north-western Alberta this has coincided with the decline of Wapiti River watershed Arctic Grayling (Thymallus arcticus) populations. Data on diurnal dissolved oxygen (DO), chemical and physical stream habitat data were collected in nine sub-watersheds of the Wapiti River with historically abundant Arctic Grayling populations. Levels and fluctuations of DO and temperature were related to the status of populations; five of the nine streams had higher temperatures and lower DO during summer, anoxic conditions during winter and extirpated populations. Amount of disturbed land and road density within sub-watersheds were inversely related to DO levels and population status. Cumulative effects modelling suggests a possible mechanism for these relationships is increased phosphorous runoff, leading to impaired habitat. These relationships and thresholds may be used as a management tool to maintain or restore Arctic Grayling and other stream fishes.
|Contact ALCES for Adam Paul Norris, 2012|
Cumulative Effects of Logging Road Sediment on Salmonid Populations in the Clearwater River Jefferson County Washington
C.J. Cederholm, L.M. Reid, E.O. Salo
The nature of sediment production from logging roads and the effect of the resulting sediment on salmonid spawning success in the Clearwater River drainage have been studied for eight years. The study includes intensive and extensive analyses of field situations, supplemented by several controlled experiments. It was found that significant amounts (15-25 percent) of fine sediments (less than 0.85 mm diameter material) are accumulating in spawning gravels of some heavily roaded tributary basins. This accumulation is highest in basins where the road area exceeds 2.5 percent of the basin area. Tributaries of relatively steep gradient are less likely to accumulate high levels of fines. The survival of salmonid eggs to emergence is inversely correlated with percent fines when the percentage of fines exceeds the natural levels of 10 percent. There is a rapid decrease in survival to emergence for each 1 percent increase in fines over natural levels. The presence of 2.5 km/km2 of gravel-surfaced roads undergoing an average distribution of road uses is found to be responsible for producing sediment at 2.6-4.3 times the natural rate in a drainage basin. Sixty percent of the road-related sediment production is caused by landslides while erosion on road surfaces accounts for an additional 18-26 percent. If fine sediment alone is considered, production from road surfaces and landslides is nearly equal. The tributaries of the Clearwater River may be underseeded for coho salmon due to heavy harvest rates in the commercial and sport fisheries. This underseeded condition becomes significant when the efficiency of the spawning environment in producing recruits is lowered by logging-caused sedimentation.
|Contact ALCES for C.J. Cederholm, L.M. Reid, E.O. Salo, 1980|
COSEWIC's Assessment Process and Criteria
The Committee on the Status of Endangered Wildlife in Canada
The Committee on the Status of Endangered Wildlife in Canada (COSEWIC) exists to provide Canadians and their governments with advice regarding the status of wildlife species that are nationally at risk of extinction or extirpation. The COSEWIC process is divided into three sequential steps, each of which has a tangible outcome. These are detailed below. • selection of wildlife species requiring assessment - the COSEWIC Candidate List; • compilation of available data, knowledge and information - the COSEWIC status report; and • assessment of a wildlife species' risk of extinction or extirpation and subsequent designation - the record of COSEWIC assessment results.
|Contact ALCES for The Committee on the Status of Endangered Wildlife in Canada, 2010|
Collisions between Wildlife and Vehicles in Alberta
|Contact ALCES for Amy Carter, 2010|
Chief Mountain Cumulative Effects Study
Barry Wilson and Mark Hudson
The Chief Mountain Study attempts to balance the perspectives of different stakeholders in the area and is based on the premise that all land uses examined provide economic benefits, but these benefits may have associated environmental liabilities, such as impacts on surface and groundwater or the loss of natural biodiversity. It also recognizes some liabilities may be minor by themselves, but have more serious cumulative effects. The study attempts to identify potentially conflicting land use trends and to show that even the decisions of individuals can have beneficial or negative consequences.
|Contact ALCES for Barry Wilson and Mark Hudson, 2011|
Catchment Disturbance and Stream Response: An Overview of Stream Research at Coweeta Hydrologic Laboratory
Webster, Golladay, Benfield, Meyer, Swank, Wallace
People interested in stream pollution frequently make a distinction between point-source and non-point-source pollution. Point-source pollution comes out of a pipe; non-point pollution generally enters streams in run-off from surrounding land. It is our contention that non-point-source pollution is a major contributor to degradation of water quality and ecosystem integrity in rivers; the direct effects are primarily to small streams and are then transmitted downstream to larger rivers. In this chapter we illustrate how a terrestrial disturbance affects small streams and how these streams respond to and recover from the disturbance.
|Contact ALCES for Webster, Golladay, Benfield, Meyer, Swank, Wallace , 1992|
Catalogue of Coal Mines of the Alberta Plains
J. D. Campbell
A comprehensive catalogue is presented of all coal mines that have been registered or opened in the plains regions of Alberta. Included are data on surrounding terrain, geology and composition of the coal, and a location map on a scale of one inch to 12 miles.
|Contact ALCES for J. D. Campbell, 1964|
Better Farming; Better Air
H.H. Janzen, R.L. Desjardins, P. Rochette, M. Boehm and D. Worth
Review of agricultural practices and their contributions to GHG
|Contact ALCES for H.H. Janzen, R.L. Desjardins, P. Rochette, M. Boehm and D. Worth, 2008|
Application of a GIS for simulating hydrological responses in developing regions
Stefan W. Kienzle
Present capturing, processing and manipulation of spatial data and information as well as coupling processes between the ARC/INFO GIS and the ACRU HMS (Agricultural Catchment Research Unit) is demonstrated for the Mgeni basin in Natal, South Africa.
|Contact ALCES for Stefan W. Kienzle, 1993|