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An Exploratory Study Of Extremesport Athletes’ Nature Interactions:From Well-Being To Pro-Environmental Behavior, Tadhg Eoghan Macintyre, Andree M. Walkin, Juergen Beckmann, Giovanna Calogiuri, Susan Gritzka, Greig Oliver, Aoife Donnelly, Giles Warrington
An Exploratory Study Of Extremesport Athletes’ Nature Interactions:From Well-Being To Pro-Environmental Behavior, Tadhg Eoghan Macintyre, Andree M. Walkin, Juergen Beckmann, Giovanna Calogiuri, Susan Gritzka, Greig Oliver, Aoife Donnelly, Giles Warrington
Articles
Traditionally, perceptions about extreme sport athletes being disconnected fromnature and a risk-taking population have permeated the research literature. Drawingupon theoretical perspectives from environmental, sport, organizational and positivepsychology, this qualitative study attempts to explore the lived experiences of fourmale and four female extreme sport athletes. The purpose of this study was togain insight and understanding into the individuals’ attitudes toward the benefits ofextreme sport activities for well-being, resilience and pro-environmental behavior. Eightparticipants (Mean age = 40.5 years;SD=±12.9) provided written informed consentto partake in semi-structured interviews. Each athlete provided written consented toallow the publication of their identifiable data and in order to …
Vegetation Response To Piñon And Juniper Tree Shredding, Jordan Bybee, Bruce A. Roundy, Kert R. Young, April Hulet, Darrell B. Roundy, Leann Crook, Zachary Aanderud, Dennis L. Eggett, Nathan L. Cline
Vegetation Response To Piñon And Juniper Tree Shredding, Jordan Bybee, Bruce A. Roundy, Kert R. Young, April Hulet, Darrell B. Roundy, Leann Crook, Zachary Aanderud, Dennis L. Eggett, Nathan L. Cline
Articles
Piñon (Pinus spp.) and juniper (Juniperus spp.) expansion and infilling in sagebrush (Artemisia L.) steppe communities can lead to high-severity fire and annual weed dominance. To determine vegetation response to fuel reduction by tree mastication (shredding) or seeding and then shredding, we measured cover for shrub and herbaceous functional groups on shredded and adjacent untreated areas on 44 sites in Utah. We used mixed model analysis of covariance to determine significant differences among ecological site type (expansion and tree climax) and treatments across a range of pretreatment tree cover as the covariate. Although expansion and tree climax …
Incorporating Hydrologic Data And Ecohydrologic Relationships Into Ecological Site Descriptions, Christopher Jason Williams, Frederick B. Pierson, Kenneth E. Spaeth, Joel R. Brown, Osama Z. Al-Hamdan, Mark A. Weltz, Mark A. Nearing, Jeffrey E. Herrick, Jan Boll, Peter R. Robichaud, David C. Goodrich, Phillip Heilman, D. Phillip Guertin, Mariano Hernandez, Haiyan Wei, Stuart P. Hardegree, Eva K. Strand, Jonathan D. Bates, Loretta J. Metz, Mary H. Nichols
Incorporating Hydrologic Data And Ecohydrologic Relationships Into Ecological Site Descriptions, Christopher Jason Williams, Frederick B. Pierson, Kenneth E. Spaeth, Joel R. Brown, Osama Z. Al-Hamdan, Mark A. Weltz, Mark A. Nearing, Jeffrey E. Herrick, Jan Boll, Peter R. Robichaud, David C. Goodrich, Phillip Heilman, D. Phillip Guertin, Mariano Hernandez, Haiyan Wei, Stuart P. Hardegree, Eva K. Strand, Jonathan D. Bates, Loretta J. Metz, Mary H. Nichols
Articles
The purpose of this paper is to recommend a framework and methodology for incorporating hydrologic data and ecohydrologic relationships in Ecological Site Descriptions (ESDs) and thereby enhance the utility of ESDs for assessing rangelands and guiding resilience-based management strategies. Resilience-based strategies assess and manage ecological state dynamics that affect state vulnerability and, therefore, provide opportunities to adapt management. Many rangelands are spatially heterogeneous or sparsely vegetated where the vegetation structure strongly influences infiltration and soil retention. Infiltration and soil retention further influence soil water recharge, nutrient availability, and overall plant productivity. These key ecohydrologic relationships govern the ecologic resilience of …
Plant Establishment In Masticated Utah Juniper Woodlands, Kert R. Young, Bruce A. Roundy, Dennis L. Eggett
Plant Establishment In Masticated Utah Juniper Woodlands, Kert R. Young, Bruce A. Roundy, Dennis L. Eggett
Articles
Juniper (Juniperus spp.) encroachment into sagebrush (Artemisia spp.)-bunchgrass communities has reduced understory cover on millions of hectares of semiarid rangelands. Mechanical masticators shred trees to restore desirable vegetation and reduce the potential for catastrophic wildfire. Mechanical mastication where juniper density is high and perennial grass cover is low brings a risk of invasive weed dominance unless perennial species are established. To determine whether juniper mastication favors annual- or perennial-grass establishment, we compared seedling emergence, tillers, and aboveground biomass of cheatgrass (Bromus tectorum L.) and Anatone bluebunch wheatgrass (Pseudoroegneria spicata [Pursh] A. Löve). Comparisons were made among …
Utah Juniper And Two-Needle Piñon Reduction Alters Fuel Loads, Kert R. Young, Bruce A. Roundy, Stephen C. Bunting, Dennis L. Eggett
Utah Juniper And Two-Needle Piñon Reduction Alters Fuel Loads, Kert R. Young, Bruce A. Roundy, Stephen C. Bunting, Dennis L. Eggett
Articles
Juniper (Juniperus spp.) and piñon (Pinus spp.) trees have encroached millions of hectares of sagebrush (Artemisia spp.)–bunchgrass communities. Juniper–piñon trees are treated to reduce canopy fuel loads and crown fire potential. We measured the effects of juniper–piñon infilling and fuel-reduction treatments on fuel load characteristics at four locations in Utah. At each location, treatment areas were burned, left untreated, or trees were cut or masticated in a randomised complete-block design. We measured standing and downed fuels by size and type along 30-m transects on 15 subplots (30 × 33 m) per location before and 1–3 years after …
Response Of Conifer-Encroached Shrublands In The Great Basin To Prescribed Fire And Mechanical Treatments, Richard F. Miller, Jaime Ratchford, Bruce A. Roundy, Robin J. Tausch, April Hulet, Jeanne C. Chambers
Response Of Conifer-Encroached Shrublands In The Great Basin To Prescribed Fire And Mechanical Treatments, Richard F. Miller, Jaime Ratchford, Bruce A. Roundy, Robin J. Tausch, April Hulet, Jeanne C. Chambers
Articles
In response to the recent expansion of piñon and juniper woodlands into sagebrush-steppe communities in the northern Great Basin region, numerous conifer-removal projects have been implemented, primarily to release understory vegetation at sites having a wide range of environmental conditions. Responses to these treatments have varied from successful restoration of native plant communities to complete conversion to nonnative invasive species. To evaluate the general response of understory vegetation to tree canopy removal in conifer-encroached shrublands, we set up a region-wide study that measured treatment-induced changes in understory cover and density. Eleven study sites located across four states in the Great …
Piñon-Juniper Reduction Increases Soil Water Availability Of The Resource Growth Pool, Bruce A. Roundy, Kert Young, Nathan Cline, April Hulet, Richard F. Miller, Robin J. Tausch, Jeanne C. Chambers, Benjamin Rau
Piñon-Juniper Reduction Increases Soil Water Availability Of The Resource Growth Pool, Bruce A. Roundy, Kert Young, Nathan Cline, April Hulet, Richard F. Miller, Robin J. Tausch, Jeanne C. Chambers, Benjamin Rau
Articles
Managers reduce piñon (Pinus spp.) and juniper (Juniperus spp.) trees that are encroaching on sagebrush (Artemisia spp.) communities to lower fuel loads and increase cover of desirable understory species. All plant species in these communities depend on soil water held at &spigt; -1.5 MPa matric potential in the upper 0.3 m of soil for nutrient diffusion to roots and major growth in spring (resource growth pool). We measured soil water matric potentials and temperatures using gypsum blocks and thermocouples buried at 0.01–0.3 m on tree, shrub, and interspace microsites to characterize the seasonal soil climate of 13 …
Understory Cover Responses To Piñon-Juniper Treatments Across Tree Dominance Gradients In The Great Basin, Bruce A. Roundy, Richard F. Miller, Robin J. Tausch, Kert Young, April Hulet, Benjamin Rau, Brad Jessop, Jeanne C. Chambers, Dennis Eggett
Understory Cover Responses To Piñon-Juniper Treatments Across Tree Dominance Gradients In The Great Basin, Bruce A. Roundy, Richard F. Miller, Robin J. Tausch, Kert Young, April Hulet, Benjamin Rau, Brad Jessop, Jeanne C. Chambers, Dennis Eggett
Articles
Piñon (Pinus spp.) and juniper (Juniperus spp.) trees are reduced to restore native vegetation and avoid severe fires where they have expanded into sagebrush (Artemisia tridentata Nutt.) communities. However, what phase of tree infilling should treatments target to retain desirable understory cover and avoid weed dominance? Prescribed fire and tree felling were applied to 8–20-ha treatment plots at 11 sites across the Great Basin with a tree-shredding treatment also applied to four Utah sites. Treatments were applied across a tree infilling gradient as quantified by a covariate tree dominance index (TDI = tree cover/[tree + shrub + …