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The Dehcho boreal caribou study was initiated in 2004 with the deployment of ten satellite collars on adult female caribou at the request of, and after consultation with Sambaa K’e Dene Band (SKDB) of Trout Lake. Extensive consultations in response to requests from other First Nations since have increased the study area and number of First Nations partners in this study. From 2004-2014 a total of 125 collars (mostly ARGOS DS or GPS) have been deployed on adult female boreal caribou (Appendix 1, Figure 1). A more detailed background history of the program, the collars used, and the deployment procedures can be found in Larter and Allaire (2010). This report provides updated results and new information from another...
Categories: Publication; Types: Citation; Tags: B5-Caribou, Dehcho Boreal Herd
* 1Large-scale habitat loss is frequently identified with loss of biodiversity, but examples of the direct effect of habitat alterations on changes in vital rates remain rare. Quantifying and understanding the relationship between habitat composition and changes in vital rates, however, is essential for the development of effective conservation strategies. * 2It has been suggested that the decline of woodland caribou Rangifer tarandus caribou populations in North America is precipitated by timber harvesting that creates landscapes of early seral forests. Such habitat changes have altered the predator?prey system resulting in asymmetric predation, where predators are maintained by alternative prey (i.e. apparent...
Categories: Publication; Types: Citation; Tags: B5-Caribou, Woodland Herd
The caribou (Rangifer tarandus ) has been the most valuable game species throughout circumpolar regions since ancient times. They have remained an important economic and cultural resource for northern communities. However, caribou are not always a dependable resource, due to marked population declines and range shifts that occur at unpredictable intervals. These fluctuations are often caused by harsh environmental conditions. In addition, since the early 19 th century, many caribou herds have experienced various levels of stress due to human encroachment on caribou ranges. Consequently, a number of populations and subspecies have recently been listed as threatened or endangered . As herd range conditions change...
Categories: Publication; Types: Citation; Tags: B5-Caribou, M1-Mammals
The Chisana caribou herd (CCH) is a small international herd occurring in Yukon and Alaska on the Klutlan Plateau and near the headwaters of the White River. During the 1990s through 2003, the herd experienced a long and steady decline in population. Low recruitment, predation, climate, habitat, and harvest pressure likely all contributed to the decline. From 2003 to 2006, a recovery effort designed to increase recruitment and calf survival was conducted. Pregnant cows were captured and enclosed within a holding pen during the last weeks of gestation and a few weeks following calving. During recovery planning and upon the completion of the program, the need for a management plan was stressed by the recovery team....
Categories: Publication; Types: Citation; Tags: 1-Yukon, A1-Wildlife, B5-Caribou, Chisana
Categories: Publication; Types: Citation; Tags: B5-Caribou
Research on impacts of human activity and infrastructure development on reindeer and caribou (Rangifer tarandus) is reviewed in the context of spatial (m to many km) and temporal (min to decades) scales. Before the 1980s, most disturbance studies were behavioral studies of individual animals at local scales, reporting few and short-term (min to h) impacts within 0-2 km from human activity. Around the mid 1980s, focus shifted to regional-scale landscape studies, reporting that Rangifer reduced the use of areas within 5 km from infrastructure and human activity by 50-95% for weeks, months or even years and increased use of remaining undisturbed habitat far beyond those distances. The extent could vary with type of...
This study looked at the efficacy of using woodland caribou fecal pellets as a source of DNA to identify sampled animals and estimate population demographics. Fecal pellet samples were collected using systematic surveys of woodland caribou ranges in Jasper National Park, Alberta and the North Interlake region, Manitoba. Collection of pellet samples took place when snow was present to allow for tracking and location of caribou cratering areas and to obtain good quality DNA. DNA was amplified at ten polymorphic loci and one sex-specific primer. To estimate population size ( N ) and population growth rate (λ), mark-recapture models were used. Model assumptions were evaluated and tested by stratifying available samples...