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Skip to Search Results- 29Nielsen, Scott (Renewable Resources)
- 12Spence, John (Renewable Resources)
- 3Macdonald, Ellen (Renewable Resources)
- 2Acorn, John (Renewable Resources)
- 2Bayne, Erin (Biological Sciences)
- 2Langor, David (Canadian Forest Service)
- 1Abele, Suzanne E
- 1Amos, Jared J. H.
- 1Barber, Quinn E.
- 1Bell, Aaron J
- 1Carpenter, Thea MS
- 1Castillo Ayala, Claudia I.
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Assessing the vulnerability of rare plants using climate change velocity, habitat connectivity and dispersal ability
DownloadFall 2015
Climate change generally requires species to migrate northward or to higher elevation to maintain constant climate conditions, but migration requirement and migration capacity of individual species can vary greatly. Individual populations of species occupy different positions in the landscape...
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Changes in peatland plant community composition and stand structure due to road induced flooding and desiccation
DownloadFall 2017
Roads built through peatlands with horizontal water flow can to act as dams that affect local hydrology and thus vegetation composition and structure. On the ‘upstream’ side of roads, soils can become waterlogged causing either increased tree mortality, or stunted tree growth; conversely, the...
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Conservation of boreal moth communities in the mixedwood boreal forests of northwestern Alberta: Impacts of green tree retention and slash-burning
DownloadFall 2012
Green tree retention (GTR), which involves leaving dispersed or clustered live trees on harvested stands, is being adopted as an alternative to clear-cutting, and to conserve biodiversity on managed forests. This thesis examines the post-harvest (7-10yrs) recovery of boreal moths following...
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Fall 2016
Primates play an important role in the maintenance and functioning of tropical ecosystems. However, habitat loss due to land use conversion threatens the persistence of primates worldwide. Colombia has a diverse fauna of primates with 12% of its terrestrial territory protected under the country’s...
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Fall 2015
The Canadian boreal forest is vital breeding habitat for North American songbirds. Extensive anthropogenic disturbances within this biome are therefore of conservation concern. Using unharvested stands as controls, I examined the effects of variable retention management (VRM) relative to...
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Displacement and Mortality of Birds by High Voltage Transmission Lines in the Canadian Dry Mixed Prairie
DownloadFall 2018
Canadian grasslands are continuing to experience loss in habitat and degradation in quality due to agricultural expansion and fragmentation from roads, pipelines, and transmission lines. Today, only 43% of Canadian mixed grass prairie remains. This loss and fragmentation has led to a decline in...
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Distribution and breeding ecology of boreal and northern saw-whet owls in the Boreal forests of Alberta, Canada
DownloadSpring 2018
The boreal forest is an ecologically dynamic region with a long history of natural disturbances. These dynamics now run at a different and more rapid pace in Alberta because of land-use change, forestry, and developments in the energy industry. Although boreal owls Aegolius funereus and northern...
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Disturbance, habitat variability and biodiversity of a boreal carabid (Coleoptera: Carabidae) fauna 15 years after variable retention harvest
DownloadFall 2018
Species diversity patterns and the processes that drive them are a central focus of modern ecology. Although the spatial effects of habitat variation and disturbance on aggregate metrics like diversity and abundance have received considerable attention at local scales, ecologists have virtually...
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Effectiveness of Retention Harvesting for Biodiversity Conservation: Evidence for Understory Vegetation and Wildlife
DownloadSpring 2018
Natural disturbance emulation is being used in forest management in an attempt to mitigate the negative effects of harvesting on biodiversity. In the western Canadian boreal forest where the predominant large-scale natural disturbance is wildfire, harvests that leave live mature trees behind at...
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Effects of burn severity and time since fire on songbird communities in the northern boreal forest
DownloadFall 2018
Wildfire shapes the boreal ecosystem in western Canada and thereby enhances and diminishes important breeding habitat for many songbird species. Two aspects of wildfire, burn severity and time since fire, fundamentally alter the forest structure that songbirds use. The objectives of this study...