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Showing 1 to 20 of 24 for “"Picea glauca"”.

  1. WHITE SPRUCE (PICEA GLAUCA), MOOSE (ALCES ALCES) AND THE ORIGIN OF A ZOOTIC DISCLIMAX COMMUNITY ON ISLE ROYALE

    Caird, Stephen C2015

    … and competitive responses of white spruce (<em>Picea glauca</em>), a non-palatable species, to the savanna environment. Most tree species had lower densities in savannas, however bird-dispersed species mountain ash (<em>Sorbus decora</em>)<em> </em>and chokecherry (<em>Prunus virginiana</em>) …

    nmu Repository record

  2. Caractérisation moléculaire des communautés microbiennes associées à la rhizosphère de picea glauca non génétiquement modifiés et génétiquement modifiés avec le transgène BT(CryIa(b))

    LeBlanc, Philippe M.Université de Moncton2006

    … peuplant la rhizosphère d'épinette blanches (Picea glauca ) génétiquement modifiées par l'insertion biolistique des transgènes cryIa(b)/uidA/nptII furent comparées avec celles des communautés microbiennes associées à la rhizosphère de plants homologues non génétiquement modifiés, ainsi qu'à …

    moncton Repository record

  3. Structure, distribution and innervation of sensilla on the ovipositor of the spruce budworm Choristoneura fumiferana, and electrophysiological reponses from type II sensilla

    Banga, Neil1997

    … from their most preferred host, white spruce (Picea glauca), revealed no differences between unmated and mated insects. Mated and unmated females' sensilla responded differently to common polar nutrients. Results from this study suggest that mated females may be using polar compounds rather …

    concordia Repository record

  4. The effects of harvest intensity and seedbed type on germination and early survival of balsam fir and white spruce in the southern boreal forest

    Calogeropoulos, Catherine2001

    … ( Abies balsamea (L.) Mill) and white spruce ( Picea glauca (Moench) Voss) were examined. The harvest intensities canopies included a 1/3 rd and 2/3 rd partial cut, a clearcut and a control (full canopy). The seedbeds were mineral, humus (O h ) and organic (O f ). In clearcuts, seedbeds included …

    concordia Repository record

  5. Sexual recruitment of trees following fire in the southern mixedwood boreal forest of Canada

    Charron, Isabelle1998

    … of four tree species, Pinus banksiana Lamb., Picea mariana (L.) Mill., Picea glauca (Moench) Voss and Populus tremuloides Michx., was studied in the mixedwood boreal forest of Saskatchewan, Canada. The main objective of the study was to estimate the recruitment densities of germinants as a …

    concordia Repository record

  6. Plant Community Development of Isle Royale's Moose-Spruce Savannas

    Rotter, Michael C2014

    … moisture regimes and plant communities. <em>Picea glauca</em> and <em>Poa pratensis </em>competed in a dynamic inhibitory relationship. The former facilitated forest plants while the latter out-competed other plants and promoted open swards. These interactions are dramatically changing the …

    nmu Repository record

  7. Soil based vegetation productivity modeling for a northern Michigan surface mining region

    Corr, Dustin L.2012

    … red maple (Acer rubrum L.), white spruce (Picea glauca [Moench] Voss), red pine (Pinus resinosa Aniton), eastern white pine (Pinus strobus L.), jack pine (Pinus banksiana Lamb.), and lilac (Syringa vulgaris L.). Soil attributes that were examined in this research include: available water …

    msu Repository record

  8. Spruce bark beetle disturbance in the forest-tundra ecotones of southwest Yukon: impacts and predisposing factors

    Mazzocato, Michelle2015

    … on the growth and establishment of white spruce (Picea glauca). Specific objectives were to evaluate (i) the relationships between stand structure and variance in beetle-induced mortality and (ii) growth patterns between stands affected and relatively unaffected by the outbreak. Information on …

    queens Repository record

  9. Fine-Scale Mechanisms Influencing Germination Success, Seedling Growth and Survival in an Alpine Forest-Tundra Ecotone

    Kambo, Dasvinder2017

    … To that end, I studied the white spruce (Picea glauca) alpine treeline in the Kluane region of southwest Yukon to explore two important questions related to treeline ecology: (1) Is there sufficient viable seed dispersed at and beyond treeline for successful advance? (2) What are the most …

    queens Repository record

  10. Nuclear and cytoplasmic genetic variation in Picea: DNA markers for evaluating past migration, introgression and evolutionary history

    Germano-Presby, Joselle

    … identified in range-wide populations of white (Picea glauca), black (P. mariana ) and red spruce (P. rubens). The chloroplast genome exhibited more intraspecific variation than the mitochondrial genome. Red spruce displayed the most total chloroplast genetic diversity (H T = 0.52). …

    unh-thes Repository record

  11. Interacting effects of soil nitrogen supply and light availability on understory sapling growth and foliar attributes

    Kranabetter, John MartyUniversity of British Columbia2008

    … forests, understory Tsuga heterophylla and Picea glauca x sitchensis had consistent foliar N% across gradients of light availability; in contrast, foliar N% of Betula papyrifera and Thuja plicata declined with increasing shade, which would distort assessments of soil fertility and perhaps …

    ubc Repository record

  12. Habitat Selection By Female White-Tailed Deer in the Northern Black Hills, South Dakota and Wyoming

    Kennedy, John F.

    … selection in those habitats in winter. Spruce (Picea glauca), aspen/beaked hazel/spiraea (Populus tremuloides/Corylus cornuta/Spiraea betulifolia), and pine/aspen habitats were avoided in winter. During spring, deer selected agricultural lands and aspen/beaked hazel/spiraea habitat, while all …

    sdstate Repository record

  13. Dendroarchaeology in the Mackenzie Mountains: The Moose Horn Pass Caribou Fence (KjRx-1)

    Beckhusen, Gary Jason Rya 1976-University of Saskatchewan2019

    … fences ages. To do this, living white spruce (Picea glauca) trees in the area were cored to determine the overall growth pattern in the local environment. The arrangement of wide and narrow rings reflects local growing conditions. This pattern, ending at a known point in time, provides a …

    sask Repository record

  14. A Dendroclimatic Investigation of Southwestern Saskatchewan

    Kerr, Samantha AliciaFaculty of Graduate Studies and Research, University of Regina2013

    … albicaulis, Pinus ponderosa, Pinus contorta, Picea glauca, and Pseudotsuga menziesii) were collected and updated from the Sweet Grass Hills and Bears Paw Mountains (Montana, USA), and the Cypress Hills (Alberta and Saskatchewan, Canada). Correlation analysis was used to identify significant …

    regina Repository record

  15. Tracking nuclear generating station emissions and fossil fuel contributions using tree rings in southern Ontario, Canada

    Martin, Danielle S.Brock University2024

    … Δ14C tree-ring signatures from white spruce (Picea glauca) and blue spruce (Picea pungens) can track 14C-enrichment from NGS 14C emissions when comparing peaks in tree-ring Δ14C offset data and 14C emissions during the trees’ growing season. Tree-ring Δ14C signatures are also observed in …

    brock Repository record

  16. Vegetative storage protein accumulation and physiological changes occurring within interior spruce seedlings

    Binnie, Sheila CatherineUniversity of British Columbia1993

    … in nursery-grown Interior spruce seedlings (Picea glauca and P.engelmanni complex) was evaluated along with changes in seedling physiology. The 30 kD and 27 kD vegetative storage proteins (VSP) appeared after vegetative maturity (budset) and accumulated during the development of rest and the …

    ubc Repository record

  17. Distribution and Abundance of American Martens and Cougars in the Black Hills of South Dakota and Wyoming

    Fecske, Dorothy Marie

    … Hills coincided with white spruce-dominated (Picea glauca) forests and associated contiguous forests of other types (predominantly ponderosa pine, Pinus ponderosa). High-quality marten habitat consisted of mature, dense canopied (>50%), spruce-dominated forests, in riparian areas, and at …

    sdstate Repository record

  18. Habitat Selection of White-tailed and Mule Deer in the Southern Black Hills, South Dakota

    Dubreuil, Robert P.

    … female white-tailed deer selected spruce (Picea glauca) and ponderosa pine/spruce. Male white-tailed deer selected ponderosa pine habitats. All white-tailed deer avoided meadows during the summer and selected habitats with > 40% canopy cover. Habitats with a shrub understory component also …

    sdstate Repository record

  19. Réponse spatio-temporelle de la communauté de coléoptères forestiers suite à l'éclaircie commerciale de plantations sous aménagement intensif

    Gandiaga, FranckUniversité de Moncton2021

    … dans des plantations d’épinettes blanches (Picea glauca) de 2011 à 2014, où nous avons testé quatre types de traitements d’éclaircie dans six plantations (24 parcelles expérimentales au total). Dans chaque parcelle, nous avons déterminé l’abondance et la richesse spécifique des coléoptères …

    moncton Repository record

  20. Ecological site quality, site index, and height growth of white spruce stands in the sub-boreal spruce zone of British Columbia

    Wang, Gaofeng G.University of British Columbia1993

    … ecological site quality and white spruce [Picea glauca (Moench) Voss] height growth, vegetation, soil, foliar nutrient, and stem analysis data were obtained from 102 white spruce-dominated stands across a wide range of sites throughout the Sub-Boreal Spruce (SBS) biogeoclimatic zone of …

    ubc Repository record

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