|Year||Title (Author, Description)||File Download|
Habitat Management in the Yukon Winter Range of the Little Rancheria Caribou Herd
J.Z. Adamczewski, R.F. Florkiewicz and V. Loewen
Woodland caribou (Rangifer tarandus caribou) ranges have shrunk substantially across North America due to the complex effects of human-caused habitat changes. As a result, COSEWIC1 listed nearly all woodland caribou populations in Canada as either Threatened or of Special Concern in May 2002. The Little Rancheria Herd (LRH) of caribou, which numbered about 1,000 in 1999, has a lowland forested winter range with some merchantable pine and spruce stands just west of Watson Lake, Yukon. Timber harvest in this range has to date (2003) been limited but the potential for habitat fragmentation is high. In this report we develop a long-term approach to habitat management of the Yukon LRH winter range, based on the herd’s habitat use and ecology, together with studies and management of woodland caribou elsewhere. The direct and indirect effects of development on woodland caribou include: • loss of fragile, slow-growing lichens, the • primary caribou winter forage, • avoidance of disturbed areas, particularly those with heavy traffic, • increased hunter access and harvest, • collisions with vehicles, • increased access to remote caribou range for predators, primarily wolves, and • improved habitat suitability for other • ungulates like moose. Where these other prey sustain elevated wolf numbers, caribou numbers often decline. Alberta studies showed that caribou were more likely to be killed by wolves in areas within 250 m of all recent cut-blocks and other developments, and that caribou used these areas much less than undisturbed forests. The development “footprint” was defined as the proportion of the land-base within such avoidance zones. Where the development footprint in a caribou range was 50% or greater, the population was likely to be declining at 1–3% annually, even with little or no hunting. Threshold levels limiting the footprint in caribou range have been proposed as a management option for the Yukon. Management guidelines for caribou ranges in British Columbia and Ontario focus on protecting critical caribou habitat from development and access, and allow carefully managed development in less sensitive caribou range. Three management zones in the Yukon LRH winter range were identified in the 1990s based first on reconnaissance surveys and later confirmed by radio-collar locations: a heavily used core, a surrounding extended range, and a migration corridor. Although just 3.6% of the land-base had been cut for timber by 2002, the development footprint in the LRH Yukon winter range was 16% overall, with 18% in the core, 18% in the extended range, and 5% in the migration zone. Like most Yukon caribou herds, the LRH is hunted. The estimated annual harvest rate averaged 5% from 1992 to 2002. To enable continued hunting of this herd, and to allow for periodic range losses to fire, development in this winter range must be kept at levels well below the 50% footprint values linked to serious declines in Alberta. The suggested management approach for the LRH Yukon winter range is based on British Columbia models, Alberta studies, and recent reports proposing thresholds for development footprint in caribou range. The main points of the approach are: • withdraw the core winter range from further logging or development, • establish a connected reserve network of high-quality habitat in the extended range and migration zone, and • establish maximum development footprint values of 30% in the extended range and 25% in the migration zone.
|Contact ALCES for J.Z. Adamczewski, R.F. Florkiewicz and V. Loewen , 2003|
Spatial Analysis of Rural Residential Expansion in South-Western Alberta
Miistakis Institute for the Rockies
|Contact ALCES for Miistakis Institute for the Rockies, 2003|
RESPONSE OF A WINTERING MOOSE POPULATION TO ACCESS MANAGEMENT AND NO HUNTING – A MANITOBA EXPERIMENT
Vince Crichton, Trevor Barker, and Doug Schindler
We report on an experiment undertaken in eastern Manitoba beginning in 1996, in which a moose population wintering in 62 km2 (24.2 mi2)was protected from hunting until September 2003. At the time of closure, it is speculated that about 37 (0.6/km2 (1.5/mi2)) moose wintered in the area based on aerial surveys and considering visibility bias. The closure was supported by the Eastern Region Committee for Moose Management, which is comprised of Manitoba Conservation staff, First Nation representatives from local communities, local hunting organizations, and other interest groups such as Tembec Manitoba Incorporated and the Manitoba Model Forest. Road access to the area was curtailed by using locked gates, millstones, and V-plowing a portion of the road in 2002. The area was surveyed from a helicopter on March 4, 2003, and 107 moose were counted in the closed area and again, based on visibility bias, it is speculated that about 142 moose (2.3/km2 (5.8/mi2 )) were present. This experiment clearly demonstrates that moose will respond positively to access management and no hunting, and that V-plowing roadbeds is a useful technique for controlling access. The cost associated with such plowing varies from about $500-$1,500/km depending on material contained in the roadbed.
|Contact ALCES for Vince Crichton, Trevor Barker, and Doug Schindler, 2004|
Integrated Landscape Management Tools for Sustainable Development Policy Making
Policy Research Initiative
Sustainable Development Briefing Note
|Contact ALCES for Policy Research Initiative, 2005|
Integrated Landscape Management Modelling Workshop
Policy Research Institute
Sound land-use decision-making requires that social, economic, and environmental values be balanced, and that any repercussions within these three areas due to a decision taken in another be identified and taken into account. Land-use planning and environmental impact assessments (both aspects of integrated landscape management) could be improved, and the decision-making process better informed, through the use of integrated landscape management models (ILMM).
|Contact ALCES for Policy Research Institute, 2005|
Energy and the Alberta Economy: Past and Future Impacts and Implications
Robert L. Mansell, Ron Schlenker
Alberta is in many respects at a crossroads. On the one hand complacency will almost certainly mean a dimming of the province’s long-term prosperity. Declines in the conventional oil and gas sector will significantly dampen growth and prosperity. There are no other sectors of the province’s economic base that could realistically expand sufficiently to offset significant declines in the dominant energy sector. On the other hand, visionary, strategic investments today can unlock non-conventional and other energy resources critical to securing a strong and prosperous long-term, sustainable future for the province. It is in this context that ISEEE has undertaken a series of papers focused on Alberta’s energy futures. The intent is to take a longer term look at the challenges, opportunities and choices and what they mean for Alberta’s future. This first paper provides both a retrospective and a prospective overview of the impacts of the oil and gas sector. It is intended to frame and highlight the longer term issues and provide an anchor for more detailed analysis in subsequent papers.
|Contact ALCES for Robert L. Mansell, Ron Schlenker, 2006|
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|
Relationships between Soil and Runoff Phosphorus in Small Alberta Watersheds
Joanne Little, Sheilah Nolan, Janna Casson, and Barry Olson
Field-scale relationships between soil test phosphorus (STP) and flow-weighted mean concentrations (FWMCs) of dissolved reactive phosphorus (DRP) and total phosphorus (TP) in runoff are essential for modeling phosphorus losses, but are lacking. The objectives of this study were (i) to determine the relationships between soil phosphorus (STP and degree of phosphorus saturation (DPS)) and runoff phosphorus (TP and DRP) from field-sized catchments under spring snowmelt and
|Contact ALCES for Joanne Little, Sheilah Nolan, Janna Casson, and Barry Olson, 2006|
A Checklist for Evaluating Alberta's New Land-Use Initiatives
Public land management in Alberta is once again under scrutiny thanks to several policy initiatives and stakeholder consultations recently launched by the provincial government. Many stakeholder groups and individuals who pay attention to land-use issues must be wondering whether or not they should participate in this flurry of activity and how likely it is to achieve significant results.
|Contact ALCES for Steve Kennett, 2006|
Phosphorus Sources and Sinks in Watersheds: A Review
Sandi Riemersma, Joanne Little, Gerald Ontkean, and Tanya Moskal-Hébert
Many regions around the world are concerned with phosphorus (P) and the risk it poses to water quality. Phosphorus is the limiting nutrient in most freshwater systems and, when in excess, it can accelerate eutrophication. Many countries have adopted some form of phosphorus management strategy to reduce the risk of phosphorus entering surface water from agricultural land. In Alberta, the Soil Phosphorus Limits Project was initiated in 1999 to develop soil phosphorus limits that will maintain or improve surface water quality by minimizing phosphorus loading from agricultural soils. With laboratory work complete, micro-watershed studies have recently been initiated to identify the relationship between dissolved phosphorus (DP) and soil test phosphorus (STP). However, on a larger scale there are a variety of phosphorus sources and sinks within watersheds that influence the phosphorus content of surface water. A key question is what proportion of phosphorus in surface water can be attributed to agricultural land, and what factors govern inconsistencies in the various sources and sinks. To better understand this complex issue, a review of literature pertaining to phosphorus sinks and sources was conducted. Research carried out in Alberta and elsewhere that attempted to integrate phosphorus fluxes on a watershed scale was assessed, and its implications on the Soil Phosphorus Limits Project discussed.
|Contact ALCES for Sandi Riemersma, Joanne Little, Gerald Ontkean, and Tanya Moskal-Hébert, 2006|