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Conference Proceedings (Renewable Resources)

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  1. Climatic and anthropogenic effects on atmospheric mercury accumulation rates in ombrotrophic bogs from Southern Ontario [Download]

    Title: Climatic and anthropogenic effects on atmospheric mercury accumulation rates in ombrotrophic bogs from Southern Ontario
    Creator: Givelet, N.
    Subjects: Atmospheric elements, Peat bogs, Mercury
    Date Created: 2003
  2. Analytical procedures for the determination of selected trace elements in age dated peat profiles [Download]

    Title: Analytical procedures for the determination of selected trace elements in age dated peat profiles
    Creator: Krachler, M.
    Subjects: Peat bogs, Age-dated profiles, Trace elements
    Date Created: 2003
  3. Managing fire for woodland caribou in Jasper and Banff National Parks [Download]

    Title: Managing fire for woodland caribou in Jasper and Banff National Parks
    Creator: Shepherd, L.
    Description: Abstract: Woodland caribou (Rangifer tarandus caribou) populations in Jasper (JNP) and Banff National Parks (BNP) have declined since the 1970s, coincident with reduced fire activity in both parks, relative to historic levels. Some researchers have suggested that long periods without fire may cause habitat deterioration for woodland caribou, primarily by reducing available lichen forage. We examined winter habitat selection by woodland caribou at coarse and fine scales based on GPS-derived telemetry data and used models that included stand origin (decade), topography, and several stand structure variables that are related to time since fire, to explore relationships among caribou, lichen, and fire history. Based on the relationships illustrated by the models, we assessed how fire management could be applied to caribou conservation in JNP and BNP. At a coarse scale, caribou selected old forest (> 75 years) in landscapes that have likely experienced less frequent wildfire. While the abundance of Cladonia spp. influenced caribou use at fine scales, a preference for areas with older trees within stands was also significant. We conclude that short-term habitat protection for woodland caribou in JNP and BNP likely requires fire exclusion from caribou range.
    Subjects: Rangifer tarandus caribou, Fire management, Resource selection functions, Lichen, Forage, Multi-scale models, Habitat, Cladonia, Generalized linear models
    Date Created: 2007
  4. Evaluation of carabid beetles as indicators of forest change in Canada [Download]

    Title: Evaluation of carabid beetles as indicators of forest change in Canada
    Creator: Work, T.T.
    Description: Our objective was to assess the potential of carabid beetles (Coleoptera: Carabidae) as effective bioindicators of the effects of forest management at a Canadian national scale. We present a comparison of carabid beetle assemblages reported from large-scale Studies across Canada. Based on the initial response following disturbance treatment, we found that carabid assemblages consistently responded to disturbance, but responses of individual species and changes in species composition were nested within the context of regional geography and finer scale differences among forest ecosystems. We also explored the relationship between rare and dominant taxa and species characteristics as they relate to dispersal capacity and use of within-stand habitat features such as coarse woody debris. We found no relationship between life-history characteristics (such as body size, wing morphology, or reported associations with downed wood) and the relative abundance Or frequency Of occurence of species. Our results suggest that carabids are better suited to finer scale evaluations of the effects of forest management than to regional or national monitoring programs. We also discuss several knowledge gaps that currently limit the full potential of using carabids as bioindicators.
    Subjects: Habitat fragmentation, Pitfall traps, Ground beetles, Patterns, Coleoptera, Boreal forest, Abundance, Management, Assemblages, Quebec
    Date Created: 2008
  5. A 6,000 year record of atmospheric mercury accumulation in the high Arctic from peat deposits on Bathurst Island, Nunavut, Canada [Download]

    Title: A 6,000 year record of atmospheric mercury accumulation in the high Arctic from peat deposits on Bathurst Island, Nunavut, Canada
    Creator: Givelet, N.
    Subjects: Atmospheric elements, Mercury, Peat bogs
    Date Created: 2003
  6. Atmospheric deposition of arsenic and selenium in ombrotrophic peat bogs [Download]

    Title: Atmospheric deposition of arsenic and selenium in ombrotrophic peat bogs
    Creator: Frank, J.
    Subjects: Peat bogs, Atmospheric deposition, Arsenic, Selenium
    Date Created: 2003
  7. Low intensity surface fire instigates movement by adults of Calosoma frigidum (Coleoptera, Carabidae) [Download]

    Title: Low intensity surface fire instigates movement by adults of Calosoma frigidum (Coleoptera, Carabidae)
    Creator: Jacobs, J. M
    Description: Abstract: The genus Calosoma (Coleoptera: Carabidae) is a group of large, sometimes ornate beetles, which often voraciously attack caterpillars. Many studies have reported Calosoma beetles being highly conspicuous during defoliator outbreaks. Based on observations of individual beetle behavior, patterns of activity density and phenology we provide a hypothesis on how environmental cues may synchronize Calosoma activity with periods of high defoliation. We have observed that adults of Calosoma frigidum construct underground burrows similar to those reported to be created by larvae for pupation. We propose that small increases in soil surface temperature caused either by defoliation events or decreased albedo of blackened, burned soil causes beetles to leave their underground burrows and begin foraging. Indirect support for this hypothesis comes from high levels of adult C. frigidum collected in relatively small patches of burned forest (<200m(2)) relative to the surrounding mosaic of unburned forest shortly after a prescribed surface burn.
    Subjects: Defoliation, Behavior, Calosoma, Prescribed fire, Foraging
    Date Created: 2011
  8. Bellography: Life and contributions of Ross and Joyce Bell, two New England Naturalists [Download]

    Title: Bellography: Life and contributions of Ross and Joyce Bell, two New England Naturalists
    Creator: Spence, J. R.
    Description: Abstract: The lives and contributions of Ross and Joyce Bell are described with particular attention to studies of invertebrate natural history in the state of Vermont and carabid beetles of several groups, including the world rhysodine fauna. Their work, all done at the University of Vermont, was mainly taxonomic in nature and included aspects of the biology of the species considered. During their careers they described more than 75% of the c. 340 rhysodine species known to science. Ross Bell also wrote a number of seminal papers about the basal relationships of the Adephaga and the comparative anatomy of carabid coxal cavities. Ross and Joyce inspired several generations of students at UVM to take up advanced work in entomology and natural history.
    Subjects: Ross Bell, Rhysodini, Joyce Bell, Carabidae, Vermont
    Date Created: 2011
  9. Retention of atmospheric Cu, Ni, Cd and Zn in an ombrotrophic peat profile near the Outokumpu Cu Ni mine, SE Finland [Download]

    Title: Retention of atmospheric Cu, Ni, Cd and Zn in an ombrotrophic peat profile near the Outokumpu Cu Ni mine, SE Finland
    Creator: Rausch, N.
    Subjects: Peat bogs, Retention of atmospheric elements
    Date Created: 2003
  10. Maintaining Arthropods in Northern Forest Ecosystems: Symposium Proceedings [Download]

    Title: Maintaining Arthropods in Northern Forest Ecosystems: Symposium Proceedings
    Creator: Langor, D. W.
    Subjects: Arthropods, Northern forest ecosystems
    Date Created: 2008