|Year||Title (Author, Description)||File Download|
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|
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|
DELIVERING UNPOPULAR MESSAGES: Don’t just survive. Succeed!
Lorne Fitch, P. Biol.
We’d all like to deliver popular messages, the ones people want to hear, the positive and uncontroversial ones and those that evoke emotional responses like gratitude, pleasure and warmth. In a perfect world what other messages would there be to deliver? In that other sphere those that listen to messages would be well informed, rational, interested, motivated, knowledgeable and broad-minded. The fact that people, in this world, often don’t display these characteristics is not an indictment against them. It isn’t right, it isn’t wrong; it is just that way. As someone who is going to deliver an unpopular message it is the recognition that some responses are predictable, unsurprising and not totally unjustified. As the deliverer of that message, you are challenging the beliefs, perceptions and opinions of someone. Most people are driven by a combination of beliefs that are largely ill formed, lack crucial information and can be irrational because of other circumstances. There is a lack of time, application of critical thinking and interest to sort through a complex situation, until the message deliverer holds up a mirror forcing people to face the issues. Who wouldn’t be wracked with anxiety, anger or fear with that prospect?
|Contact ALCES for Lorne Fitch, P. Biol., 2006|
Demand Letter to Minister Prentice
Jack Woodward, Woodward & Co. LLP
We are legal counsel for Beaver Lake Cree Nation, Enoch Cree Nation, Chipewyan Prairie Dene First Nation and Athabasca Chipewyan First Nation (collectively, the “First Nations Petitioners”) in respect of this matter. We write on behalf of the First Nations Petitioners to request that you take immediate steps to protect the full ranges of the remaining woodland caribou herds in northeastern Alberta by preventing any further industrial activity anywhere within those ranges. Leading woodland caribou biologists have been recommending this course of action to you and to your ministry (Environment Canada) for several years. You and your ministry have also known for several years about the precipitous decline of woodland caribou in northeastern Alberta, but to date you have done nothing to protect woodland caribou or their habitat.
|Contact ALCES for Jack Woodward, Woodward & Co. LLP, 2010|
Lorne Fitch, P. Biol.
It was a sight to behold and one greater to comprehend the eating of, that chocolate cream pie. We had whipped it together from graham cracker crumbs and chocolate pudding, shaken and then chilled in a snow bank on a backpacking trip. The anticipation of eating it brought me to the level of a child, thinking only of immediate gratification. My two companions showed considerably more restraint, electing to divide each of their respective thirds in half, to have a piece at breakfast the next morning. I ate my third immediately. The saved piece of pie was enclosed in a rock cairn to protect it from marauders. I was teased unmercifully about how good the remainder would taste in the morning, had I saved some of my pie. The early glow of morning light revealed the cairn had been transformed into a scatter of rocks. No pie remains were left and the aluminum pie plate retained gouges on its surface. A mule deer doe was beating a hasty retreat from the scene saving me from instant suspicion. But, a closer inspection of the crime scene with all the intensity of a CSI unit showed a porcupine was the culprit. Somewhere in the headwaters of the Castle River there may well be a line of porcupines still hardwired to remember a meal of non-wood, chocolate ambrosia tinged with a slight metallic aftertaste. It was my turn to laugh, since I had lost nothing in this porcupine perpetrated crime. The moral of the story, I pontificated, was that “gluttony is its own reward”. Saving a piece of the pie was foolish, because how could we predict the events of the future, and indeed the tragic loss of the saved pie? Eating it all, now, was the smart thing to do. It was only later, upon reflection that I realized how much the incident revealed of human nature and our province, if not the world.
|Contact ALCES for Lorne Fitch, P. Biol., 2012|
Ecological basis for stand management: A synthesis of ecological responses to wildfire and harvesting
Samantha Song (editor)
Public concern over the ecological impacts of clearcutting and loss of old growth forest, as well as the increased knowledge of natural disturbance dynamics of forests, has prompted a number of agencies in North America to re-evaluate forest practices. Increasingly, in an attempt to address these concerns, many government departments and corporations have released new policies and guidelines to supplement or replace the current suite of harvesting practices with a broader range of approaches that are intended to use natural disturbance as a model. Generally, the intent of the natural disturbance template is that biotic systems adapted to natural disturbance may be better managed under a harvesting regime that attempts to emulate those disturbances rather than under existing clearcutting practices. This represents a different focus for altering harvest practices than models that aim to protect old forest seral stages, although there are many overlapping components. The objective of the Ecological Basis for Stand Management project was to review, synthesize, and evaluate the ecological basis for harvest practices at the stand level in boreal mixedwood forests. Our approach critically assessed two strategies for forest management: management for old growth seral stages, and management to emulate natural disturbances, particularly wildfire. Using a chronosequence approach and with some re-analysis of existing data, we reviewed the ecological effects of wildfires on forests, then compared with clearcutting and retention of residual trees. We compared ecological elements at each seral stage to old seral stage forests. We also documented existing information on biotic responses to riparian areas and forest edges.
|Contact ALCES for Samantha Song (editor), 2002|
Ecological Infrastructure Mapping - Southern Alberta Region
02 Planning + Design Inc.
An assessment of ecosystem goods and services (EGS) in southern Alberta was initiated in 2006 by Alberta Environment. Ecosystem services are the conditions and processes through which natural ecosystems, and the species that make them up, sustain and fulfill human life (Daily 1997). The current study builds on the first two project phases by expanding the discussion of landscape patterns required to sustain the provision of ecosystem goods and services based on an identification of ecological infrastructure in the Southern Alberta region. Ecological infrastructure refers to the core features of a network that provides ecosystem services (Tzoulas et al. 2007): in this case, in the Southern Alberta region. At a regional scale, it includes the system of structural and functional terrestrial and aquatic landscape features such as clean water and habitat (Quinn, unpublished work, 2007). Components of ecological infrastructure chosen for mapping in the scope and scale of the current project include: 1. Stream corridors 2. Natural vegetation patches and stepping stones 3. Waterbody complexes 4. Areas of high species richness potential 5. Alluvial soils 6. Unique land cover types or areas GIS models were created in ArcGIS 9.2 to support the identification and mapping of ecological infrastructure components. The stream corridors map showed a high density of stream corridors in the forested landscapes to the west and southeast; very few corridors exist in the central Southern Alberta region. The largest patches of natural vegetation over 10 000 ha in size are located in the southeast and northeast. The central part of Southern Alberta has few large patches of natural vegetation, and those that remain in this area will be regionally valuable. The greatest concentration of waterbody complexes is in the northeast portion of Southern Alberta, which has a number of small complexes of standing water. When the top five classes (highest 50%) of species rich areas were selected, grasslands, forests, riparian areas and wetland cover types were picked out. Alluvial soils were found to be concentrated near the base of the Rocky Mountains along the western border of Southern Alberta. Unique land cover types including ridges and low percentage cover types were mapped, but ridges were difficult to analyze at this scale. A combined map of all ecological infrastructure components was created in which each pixel was assigned a sum value of each ecological infrastructure component it included. The high value of several landscape units to overall regional ecological infrastructure was evident. To identify the areas of coincidence between ecological infrastructure and a spatial representation of ecosystem services in the region, the ecological infrastructure was analyzed against a map representing areas with high importance to the provision of ecosystem services. O2 Planning + Design Inc. – DRAFT ii The ecological infrastructure was found to encompass 99.6% of all areas identified as high ecosystem service provision. In terms of the condition of ecosystem services, those areas of high service provision that are coincident with ecological infrastructure are most likely to be in good condition through landscape connections and within large natural patches that promote functioning ecological processes. For future application, each component of ecological infrastructure can be mapped on smaller scales, depending on the desired objectives. These processes and models can therefore support informed land use planning in the region.
|Contact ALCES for 02 Planning + Design Inc., 2008|
Ecosystem Service Assessment of Wetland Water Purification for the Shepard Slough Study Area
Irena F. Creed Consulting
There is a critical need for regional scale assessments of wetlands for ecosystem services. This study reports on a regional scale assessment using Geographical Information Systems (GIS) and remote sensing (RS) technologies for water purification services provided by wetlands in Shepard Slough, the study area for the Ecosystem Services Pilot Project (ESPP). Prototypes were developed for both a basic (readily available GIS and RS data, most of it freely downloadable from the Internet) and advanced (higher quality datasets with higher spatial resolution) approach. Due to the severe time constraints of the contract (during which we were unable to gain access to the required data for the advanced approach), only the “Regional-Basic” approach was implemented. Based on this Regional-Basic approach, we found monetary benefits to increase from 1990 to 2010 for water purification, with the monetary increase due mainly to an increase in wetland area defined by inundated water. We expect the “Regional-Advanced” approach to provide a more precise analysis, as the basic approach is based largely on the area of wetlands for water purification and ignores many of the other wetland features important for water purification.
|Contact ALCES for Irena F. Creed Consulting, 2011|
Ecosystem Services Approach Pilot on Wetlands An Exploration of Approaches to Understand Cultural Services and Benefits to Ecosystem Service Assessments
Courtney Hughes, Glenn Brown, Cory Habulin, Gillian Kerr, Krista Tremblett
This report summarizes the socio-cultural studies completed during the ES Pilot. There are a number of complementary deliverables prepared for the ES Pilot including: an Integrated Assessment Report that summarizes the results for a technical audience, an ES Approach Report that focuses on methods and process, a Project Evaluation Report, a Summary Report for Decision makers and a Summary Report for a general audience. In addition there are a number of technical reports including: reports for various components of the biophysical assessment, and a socio-economic report. As such, a detailed overview of the methods used is not included in this report. The combined deliverables for the ES Pilot together provide all the key elements for understanding the results, the methods, project evaluation and the learning’s from the Ecosystem Services Approach Pilot on Wetlands that can support future work on ES in Alberta and internationally. The socio-cultural work completed does not necessarily capture all potential cultural services and/or benefits that may be associated with the wetland under investigation or wetlands across Alberta. While attempts were made to be comprehensive in the selection of cultural services and benefits to investigate, as well as methods selected and analysis undertaken, there may be other cultural services or benefits, or other conceptualizations of these services and benefits, relevant to the study site. As such, further inquiries are likely necessary and would likely prove beneficial to an increasing understanding about cultural services and benefits related to wetlands in Alberta.
|Contact ALCES for Courtney Hughes, Glenn Brown, Cory Habulin, Gillian Kerr, Krista Tremblett, 2011|
Ecosystem Service Approach Pilot on Wetlands Assessment of Water Storage and Flood Control Ecosystem Services
O2 Planning + Design Inc.
Geographic Information Systems (GIS) technologies were used to model water storage and flood control functions as well as related beneficiaries and ecosystem services of wetlands in the Shepard Slough study area east of Calgary. The water storage model used a raster-based computer script using LiDAR inputs combined with a rating curve to estimate water storage capacity volumes for each wetland in the study area. The flood control model used eight separate predictor variables of wetland flood control functions. Notable results and conclusions of the study included: Study area wetlands provides a total water storage capacity of over 36 million m3-greater than the combined total volume of the Glenmore Reservoir and Lake Chestermere; Wetland water storage provides many supporting and regulating ecosystem services upon which all other ecosystem services depend; Much water storage is located in the large central Shepard Slough Wetlands; however, the large number of small wetlands add up to a considerable storage volume on a cumulative basis; In the study area, Class IV wetlands tend to store the most water volume, both on a per wetland basis and on a cumulative basis, although variability within the class was very high; Class V wetlands also store large volumes, but there are fewer of them and they are less important on a cumulative basis than Class III wetlands overall; Class I and II wetlands have very small average wetland volumes, but they can add up to a considerable volume when taken together as a whole; A large number of wetlands have been drained in the study area, particularly within urban areas but also in agricultural areas, and the trend calculated over 1965-2005 is a 20% drop in wetland water storage volume; Users/beneficiaries of wetland water storage provisioning services are low in the study area; Cattle are the largest ecosystem service beneficiary of water storage and supply in the study area, with up to 144,000 m3/year used by cattle; The flood control index indicates that many medium and small wetlands at high landscape positions provide considerable flood control benefits, particularly on a cumulative effects basis; “Hotspots” of high flood control services included a large cluster of wetlands near the north boundary of the study area, several wetlands east of Chestermere and in the north half of the Belvedere Area Structure Plan area in The City of Calgary; Smaller areas of wetlands with high flood control indicator values are dispersed throughout the study area; All wetlands have the potential to provide some measure of flood control ecosystem services, although this occurs to differing degrees and at different scales; According to a rough calculation, if all study area wetlands were drained effectively, peak flows in the Bow River immediately downstream would increase by up to 37%, indicating the level of importance of these wetlands at mitigating peak flows in the region; and Comparisons of the WESPUS site-scale results to the GIS model results showed: - WESPUS hydrologic function scores weakly positively correlated with water storage volume - WESPUS hydrologic scores moderately positively correlated with the flood control indicator - very high variability and in particular several outliers highlighted model mismatches - caution is required when interpreting indicator values from WESPUS or GIS models.
|Contact ALCES for O2 Planning + Design Inc., 2011|