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Now showing items 31-40 of 62
Using a novel methodology to test whether group size affects foraging behaviour in elk
(2012-11-10)
Group formation is one of the most striking patterns in the natural world.
Elk (Cervus elaphus and C. canadensis) are well known for their social and gregarious nature, but motivations for this behaviour are not fully ...
Modelling the radial and longitudinal variation in wood density and its sensitivity to climate in black spruce (Picea mariana (Mill.) B.S.P.)
(2014-01-22)
Wood density variation affects structural timber performance and is correlated with different sources (genetic diversity, stand dynamics and climatic effects) which, to date, have not been comprehensively quantified in ...
A critical examination of chemical extremes in freshwater systems
(2015-06-15)
The objectives of this thesis are to explore and identify: 1) the causative factors for
extreme endpoints in freshwater chemistry, specifically eutrophication and
acidification, and 2) the convergence of anthropogenic ...
The distribution and role of downed woody debris in nutrient retention and cycling during early stand establishment
(2013-02-12)
Coarse woody debris (CWD) in boreal ecosystems has been hypothesized to play an important nutritional role following stand-replacing disturbances such as fire or harvest. Sites with shallow soil over bedrock or those with ...
Characteristics of the boreal mixedwood forest associated with subnivean access by the American Marten (Martes americana)
(2012-11-10)
Habitat selection by the American marten (Martes americana ), in studies throughout its range, has been associated with forest types that offer higher structural complexity. Such structure has been proposed to facilitate ...
Leaf morphological and anatomical variations of paper birch populations along environmental gradients across Canada
(2014-12-12)
Leaf morphology and anatomy have been found to vary considerably among tree
species, and leaf characteristics have widely been used for analyzing plant growth and
resource use strategies because of their structural ...
Species diversity and aboveground productivity relationships in forest ecosystems
(2012-11-10)
Empirical and theoretical studies have attributed the observed positive diversity-productivity relationship (DPR) across various ecosystems to a complementarity effect through niche differentiation and/or facilitation among ...
Investigating productivity and foliar nutrient status in second growth white spruce (Picea glauca) and trembling aspen (Populus tremuloides)
(2012-11-10)
This thesis synthesizes two related papers investigating competitive interactions of second growth white spruce (Picea glauca [Moench] Voss) and trembling aspen (Populus tremuloides Michx.) at the Fallingsnow Ecosystem ...
Adaptability in moose (Alces alces L) : habitat selection in two landscapes in Newfoundland, Canada
(2014-01-22)
Moose (Alces alces [L.]) exist circumglobally and in a vast array of different habitats. I explore differences in habitat selection in relation to differences in availability of forest stands by habitat type and number of ...