Skip to main content
Advanced Search

Filters: Tags: B5-Caribou (X)

350 results (43ms)   

View Results as: JSON ATOM CSV
To conserve woodland caribou, resource managers and biologists must understand the processes governing movements and distribution of those animals. I employed a scale-explicit approach to understand some of the mechanisms influencing caribou behaviour. I trailed caribou in forested and alpine habitats and recorded attributes of feeding sites and patches. At larger scales, I used GPS collars to record the movements of caribou. At the scale of the feeding site, caribou cratered at locations with lower snow depths and greater amounts of a variety of terrestrial lichen species. Following increases in snow depth, hardness, and density, caribou in the forest fed more frequently at trees with abundant arboreal lichens....
Traditional aboriginal caribou-hunting peoples in northern Canada moved seasonally on the land until the late 1950s and this relationship is thousands of years old (Gordon 1996). Archaeological evidence in the Yukon shows that the relationship between humans and caribou in some parts of the Canadian North is up to 25 000 years old (Cinq-Mars 2001). The distribution of many Dene peoples anticipated the changing migratory movements of the barren ground caribou, especially before settlement. A recent economic valuation of just two of these barren ground herds (the Beverly and Qamanirjuaq herds) found that the domestic hunt of the more than 13 000 aboriginal peoples living on the ranges of these herds has an equivalent...
* 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
* 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
none. Brief research progress summary.
Categories: Publication; Types: Citation; Tags: B5-Caribou
In this study, we develop a method to analyse the relationships between seasonal caribou distribution and cli¬ mate, to estimate how climatic conditions affect interactions between humans and caribou, and ultimately to predict patterns of distribution relative to climate change. Satellite locations for the Porcupine (Rangifer tarandus granti) and Bathurst (R. t. groenlandicus) caribou herds were analysed for eight ecologically-defined seasons. For each season, two levels of a key environmental factor influencing caribou distribution were identified, as well as the best climate data available to indicate the factor's annual state. Satellite locations were grouped according to the relevant combination of season...
In this study, we develop a method to analyse the relationships between seasonal caribou distribution and cli¬ mate, to estimate how climatic conditions affect interactions between humans and caribou, and ultimately to predict patterns of distribution relative to climate change. Satellite locations for the Porcupine (Rangifer tarandus granti) and Bathurst (R. t. groenlandicus) caribou herds were analysed for eight ecologically-defined seasons. For each season, two levels of a key environmental factor influencing caribou distribution were identified, as well as the best climate data available to indicate the factor's annual state. Satellite locations were grouped according to the relevant combination of season...
map background search result map search result map Ecology of boreal woodland caribou in the lower Mackenzie Valley, NT: work completed in the Inuvik region, April 2003 to November 2004 Ecology of boreal woodland caribou in the lower Mackenzie Valley, NT: work completed in the Inuvik region, April 2003 to November 2004