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Filtering by: Creator Cuéllar, Dawn M. Christiansen Remove constraint Creator: Cuéllar, Dawn M. Christiansen Degree Field Forest Ecosystems and Society Remove constraint Degree Field: Forest Ecosystems and Society

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  • Tree Physiological, Physical, and Chemical Characteristics Related to Spruce Beetle Colonization: Engelmann versus Blue Spruce

    Creator:
    Ott, Daniel S.
    Abstract:
    Blue spruce (Picea pungens) and Engelmann spruce (Picea engelmannii) experience varying levels of spruce beetle (Dendroctonus rufipennis (Kirby)) colonization, yet the underlying differences and mechanisms resulting in lower colonization for blue spruce are not known. Both spruce species have important roles in subalpine ecosystems where examining changes in mortality, distribution,...
    Resource Type:
    Dissertation
    Full Text:
    Engelmann spruce-subalpine fir type in the central and southern Rocky Mountains. Page 144 in R. M. Burns

  • Interactions Between Wild Bee Communities and Douglas-fir Beetle (Dendroctonus pseudotsugae) Populations in Douglas-fir (Pseudotsugae menziezii) Forests of the Intermountain West

    Creator:
    Foote, Gabriel G.
    Abstract:
    This work combines both applied and basic research regarding previously undescribed relationships between two ecologically and economically important insect groups in coniferous forests, bark beetles (Coleoptera: Curculionidae, Scolytinae) and wild bee (Hymenoptera: Apiformes) communities in Western North America. Across the continent, native bark beetle outbreaks are key drivers of structural...
    Resource Type:
    Masters Thesis
    Full Text:
    sites, the Cibola National Forest of west-central New Mexico (33.991 N, -107.182° W; 2500-3000 m

  • Predator Conservation and Trophic Ecology

    Creator:
    Wolf, Christopher
    Abstract:
    Many of Earth’s terrestrial large carnivore species are threatened with extinction. As a result, some of the ecological effects associated with these species may be lost. With the goal of furthering large carnivore conservation research, I conduct three global scale analyses involving these species. First, I explore prey depletion as...
    Resource Type:
    Dissertation
    Full Text:
    (𝒑𝒓𝒆𝒚 ∙ 𝒑𝒓𝒆𝒅𝒂𝒕𝒐𝒓−𝟏 ∙ 𝒑𝒓𝒆𝒚−𝟏 ∙ 𝒎−𝟐 ∙ 𝒅𝒂𝒚−𝟏) and their components �𝛏𝒊 = 𝜶𝒊 𝜶𝟎

  • Managing Douglas-fir Mortality: Case Studies from Western Oregon

    Creator:
    Campbell, Lewis
    Abstract:
    An increase in frequency and severity of hot, dry summers has been associated with a dramatic shift in the coniferous forests of western Oregon’s valleys, especially on the privately-owned properties along the low-elevation edges of these valleys. Various conifer species, including Douglas-fir (Pseudotsuga menziesii), are declining in these forests, leaving...
    Resource Type:
    Capstone Project
    Full Text:
    understanding of forestry, Dawn, Stacy and Klaus for allowing him the opportunity to teach and give back to