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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....
* 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
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...
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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....
Woodland caribou (Rangifer tarandus caribou (Gmelin)) populations are in decline throughout much of their range. With increasingly rapid industrial, recreational, residential, and agricultural development of caribou habitat, tools are required to make clear, knowledgeable, and explainable management decisions to support effective conservation of caribou and their range. We developed a series of Bayesian belief networks to evaluate conservation policy scenarios applied to caribou seasonal range recovery areas. We demonstrate the utility of the networks to articulate ecological understanding among stakeholders, to clarify and explicitly depict threats to seasonal range. We also show how simulated forecasts of spatially...
* 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
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...
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This report presents a historical survey of the caribou population of British Columbia, based largely on written sources such as explorers' accounts, scientific articles, and archival records. Results are presented by ecoprovince for northern, mountain, and boreal caribou. The current geographic distribution of the species is discussed along with historic trends in the change in the caribou populations. Threats to these populations are also described, including habitat loss, predation, hunting, weather & disease, and land use impacts. The appendix contains a report on the Queen Charlotte Islands population of caribou, now extinct.
map background search result map search result map The early history of woodland caribou (Rangifer tarandus caribou) in British Columbia Ecology of boreal woodland caribou in the lower Mackenzie Valley, NT: work completed in the Inuvik region, April 2003 to November 2004 A multi-scale behavioural approach to understanding the movements of woodland caribou Interpreting Resource Selection at Different Scales for Woodland Caribou in Winter A multi-scale behavioural approach to understanding the movements of woodland caribou Interpreting Resource Selection at Different Scales for Woodland Caribou in Winter Ecology of boreal woodland caribou in the lower Mackenzie Valley, NT: work completed in the Inuvik region, April 2003 to November 2004 The early history of woodland caribou (Rangifer tarandus caribou) in British Columbia