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This report presents the results of a harvest survey and ethnographic research project that investigated the subsistence uses of large land mammals and furbearers in Game Management Unit 25 in the Yukon Flats region of Interior Alaska. Large land mammal species harvested and used by Yukon Flats residents include moose Alces alces, caribou Rangifer tarandus, black bear Ursus americanus, and brown bear Ursus arctos. Furbearing species included in this study are marten Martes americana, lynx Lynx canadensis, and wolf Canis lupus. For the 2008–2009 study year a total of 284 of 467 households (approximately 61%) were surveyed in the 7 Yukon Flats communities of Beaver, Birch Creek, Chalkyitsik, Circle, Fort Yukon, Stevens...
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A program to control wolves (Canis lupus) in interior Alaska in 1993 and 1994 did not result in expected increases in calf survival in the Delta caribou (Rangifer tarandus) herd (DCH). Therefore, the Alaska Department of Fish and Game conducted a study to determine causes of calf mortality during 1995-1997 and monitored recruitment, mortality, and population size annually in the DCH for 6 years after wolf control ended. Despite removal of 60-62% of the autumn 1993 wolf population, wolves still killed 25% of 166 radiocollared calves between birth in mid- to late May and 30 September during 1995-1997. Although autumn calf:cow ratios in the DCH increased after wolf control, similar increases in calf:cow ratios occurred...
Studies moose or Alces alces, caribou or Rangifer tarandus and grizzly bear or Ursus arctos distribution in relation to road traffic in Denali National Park, Alaska. Development of wildlife monitoring system using 19 landscape level viewsheds stratified into four sections based on decreasing traffic along the road corridor; Absence of traffic avoidance patterns for caribou and grizzly bears.
Climatic warming has direct implications for fire-dominated disturbance patterns in northern ecosystems. A transforming wildfire regime is altering plant composition and successional patterns, thus affecting the distribution and potentially the abundance of large herbivores. Caribou (Rangifer tarandus) are an important subsistence resource for communities throughout the north and a species that depends on terrestrial lichen in late-successional forests and tundra systems. Projected increases in area burned and reductions in stand ages may reduce lichen availability within caribou winter ranges. Sufficient reductions in lichen abundance could alter the capacity of these areas to support caribou populations. To assess...
Woodland caribou (Rangifer tarandus caribou) in Alberta are classified as endangered and apparently have declined. Disturbance from petroleum exploration has been implicated as a possible cause, so we constructed a simple model to estimate the energy costs of multiple encounters with disturbance (i.e., loud noise). Our objective was to estimate if woodland caribou in northeastern Alberta have been exposed to enough disturbance from 1988 to 1993 to cause winter mass loss to exceed either (i) 15% autumn mass or (ii) 20% autumn mass. A single disturbance event costs caribou 3.46-5.81 MJ. Caribou would have to encounter (i) 20-34 (mean = 27) disturbance events to lose >15% mass over winter and (ii) 41-137 (mean = 89)...
Woodland caribou (Rangifer tarandus caribou) in Alberta are classified as endangered and apparently have declined. Disturbance from petroleum exploration has been implicated as a possible cause, so we constructed a simple model to estimate the energy costs of multiple encounters with disturbance (i.e., loud noise). Our objective was to estimate if woodland caribou in northeastern Alberta have been exposed to enough disturbance from 1988 to 1993 to cause winter mass loss to exceed either (i) 15% autumn mass or (ii) 20% autumn mass. A single disturbance event costs caribou 3.46-5.81 MJ. Caribou would have to encounter (i) 20-34 (mean = 27) disturbance events to lose >15% mass over winter and (ii) 41-137 (mean = 89)...
map background search result map search result map Subsistence Land Mammal Harvests and Uses, Yukon Flats, Alaska: 2008-2010 Harvest Report and Ethnographic Update Effects of oil field development on calf production and survival in the central arctic caribou herd: Interim research technical report, 1 July 2001 - 30 September 2006 Western Arctic caribou herd cooperative management plan, 2002-2012: approved by the Western Arctic Caribou Herd Working Group as the basis for producing a public review draft plan Three Decades of Caribou Recovery Programs in Yukon: A Paradigm Shift in Wildlife Management Marrow Fat Deposition and Skeletal Growth in Caribou Calves Diet and Habitat of Mountain Woodland Caribou Inferred from Dung Preserved in 5000-year-old Alpine Ice in the Selwyn Mountains, Northwest Territories, Canada Harvest Management Plan for the Porcupine Caribou Herd in Canada – March 2010 FINAL Western Arctic caribou herd cooperative management plan Caribou Calf mortality and population growth in the Delta caribou herd after wolf control Where the wild things are: Seasonal variation in caribou movements in relation to climate Calf mortality and population growth in the Delta caribou herd after wolf control Marrow Fat Deposition and Skeletal Growth in Caribou Calves Subsistence Land Mammal Harvests and Uses, Yukon Flats, Alaska: 2008-2010 Harvest Report and Ethnographic Update Diet and Habitat of Mountain Woodland Caribou Inferred from Dung Preserved in 5000-year-old Alpine Ice in the Selwyn Mountains, Northwest Territories, Canada Effects of oil field development on calf production and survival in the central arctic caribou herd: Interim research technical report, 1 July 2001 - 30 September 2006 Harvest Management Plan for the Porcupine Caribou Herd in Canada – March 2010 FINAL Where the wild things are: Seasonal variation in caribou movements in relation to climate Western Arctic caribou herd cooperative management plan, 2002-2012: approved by the Western Arctic Caribou Herd Working Group as the basis for producing a public review draft plan Western Arctic caribou herd cooperative management plan Three Decades of Caribou Recovery Programs in Yukon: A Paradigm Shift in Wildlife Management Caribou