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Articles 1 - 30 of 466
Full-Text Articles in Leisure Studies
Understanding Avidities Of Recreational Activities For People Possessing Fishing Licenses And Residing In Urban Environments, Kyle F. Hansen
Understanding Avidities Of Recreational Activities For People Possessing Fishing Licenses And Residing In Urban Environments, Kyle F. Hansen
School of Natural Resources: Dissertations, Theses, and Student Research
Recreational fishing is one of the world's most popular pastimes, wherein participation is associated with sociodemographic factors. Even so, fishing license sales are declining in the USA in conjunction with a reduction in rural populations as people move to urban areas. Thus, urban areas are constantly growing in population size, population diversity, and geographic size suggesting a need to understand fishing participation in these growing areas. Natural resource managers often use participation to understand recreationists, yet avidity could provide a new way to understand recreationists. The goal of our study is to understand what sociodemographic factors influence the fishing avidity …
Go Pick Me Out A Winner: Visitor Perceptions And Priorities Regarding Operational Attributes At U-Pick Farms In Western New York, Nicholas Pitas, Ya-Ling Chen
Go Pick Me Out A Winner: Visitor Perceptions And Priorities Regarding Operational Attributes At U-Pick Farms In Western New York, Nicholas Pitas, Ya-Ling Chen
The Journal of Extension
This study seeks to identify visitor priorities for and perceptions of operational attributes at U-pick farms. Using a survey of farm visitors in the Rochester/Finger Lakes region, we applied importance-performance analysis to identify priorities, and the repositioning framework to create strategies for addressing them. Our results indicate that U-pick visitors generally perceive high levels of service quality, especially on attributes that they perceive as most important. Priorities for improvement include produce-related factors (price and availability of specific varieties) and visit logistics (information to plan a visit). Real, psychological, and associative repositioning strategies for Extension professionals and U-pick operators are discussed.
How Community Satisfaction Can Determine The Success Of Tourism Development In A Community, Carter Unrau
How Community Satisfaction Can Determine The Success Of Tourism Development In A Community, Carter Unrau
Posters-at-the-Capitol
Many counties in Eastern Kentucky and central Appalachia in general have suffered intense economic hardship in the past decades due to the decline in coal and other mining industries which once supplied many jobs to the people of the region. A common remedy to this is increasing tourism development in these communities. While this tactic has seen positive effects in the region, there's been communities that have given a negative review of the increase in tourism development. With such an economic gain to be had, its imperative that the source of this issue should be rooted out and resolved to …
An Exploration Of Different Motivations Between Stakeholders And Visitors Of The Potomac Heritage National Scenic Trail, Colin Mccormack
An Exploration Of Different Motivations Between Stakeholders And Visitors Of The Potomac Heritage National Scenic Trail, Colin Mccormack
Human Movement Sciences & Special Education Theses & Dissertations
Visitors have different motivations associated with parks and protected areas, and the people who run those areas are also different from visitors due to their unique positions. This is especially true for the Potomac Heritage National Scenic Trail (POHE), where stakeholders – ranging from park managers and Department of Transportation planners to volunteers of nonprofits and historical societies collaborate to manage sections along the 822-mile extent of the trail. Building on previous work itemizing the diversity of motivations for visitation to parks and protected areas, this study investigates similarities and differences in stakeholder and manager Recreation Experience Preferences by clustering …
Snapshot Of Recreational Users In The Adirondacks 2020, Jill Weiss, Jordan Elliott, Deanna Sullivan
Snapshot Of Recreational Users In The Adirondacks 2020, Jill Weiss, Jordan Elliott, Deanna Sullivan
Adirondack Journal of Environmental Studies
With a marked increase in recreation in popular wilderness areas and user motivations diversifying, management practices can no longer be reactionary and based on narratives and so-called anecdotal evidence. The High Peaks Wilderness Area of the Adirondacks, considered a hot spot for hiking, is faced with heavy use that threatens trail and ecosystem health. For managers to effectively protect fragile ecosystems and provide positive recreational experiences to users, a baseline of empirical data is needed. This pilot study starts that process by characterizing recreational users of the High Peaks, exploring their intent and preparation, and gaining their perspective on management …
Outdoor Recreation Benefits And Promotion Through A Youth-Focused Program In State Parks, Kiley Foss
Outdoor Recreation Benefits And Promotion Through A Youth-Focused Program In State Parks, Kiley Foss
Electronic Theses and Dissertations
A family’s participation in outdoor recreation activities can provide numerous benefits to each individual. Children’s participation is influenced from various factors, but parents have one of the greatest influences on their child’s outdoor recreation behavior. The purpose of this study is to assess the outcomes of a statewide outdoor recreation program in relation to using state parks as outdoor wellness centers, as well as investigate the relationship between parents’ outdoor recreation participation and perception and their children’s outdoor recreation involvement. A total of 104 parents or guardians recalled their family’s participation in the Go Forth program. Those responses were analyzed …
“You Can’T Hide Behind Being A House”: Examining The Policy Process, Design, And Implementation Of Short-Term Rental Regulations, A Case Study Of Nashville, Tn, Jamie L. Cathey
All Dissertations
Following the economic crash of 2008, the rapid expansion of platform capitalism and the recruitment of others to work for themselves using a company’s platform, has led to a ‘paradigm shift’ in which a sharing economy business model has enabled small entrepreneurial endeavors to become industry giants (Srnricek, 2017). One such platform, Airbnb, has created a new, informal tourism accommodation sector that is bringing with it questions of regulation and community impact. Airbnb regulation thus is a growing national and international trend affecting cities of all sizes and forcing policy response and change at the local government level. Current trends …
Choose Your Own Adventure: A Comparative Analysis Of Storytelling Elements In Selected Immersive Experience Attractions, John E. Balido
Choose Your Own Adventure: A Comparative Analysis Of Storytelling Elements In Selected Immersive Experience Attractions, John E. Balido
Experience Industry Management
Stories are powerful tools used to both connect and communicate through a multitude of mediums. Movies, marketing campaigns, and experience design in theme parks are modern examples of storytelling, using various practices to bring the narrative to life. The purpose of this study was to analyze the manipulation of storytelling elements to create and build an immersive adventure experience in selected theme park attractions. A comparative analysis was conducted on theIndiana Jones Adventure and the Star Wars: Rise of the Resistance rides at Disneyland using an instrument that analyzed both experience design and storytelling practices. Findings concluded that the practices …
Protocol For Monitoring Fish Communities In Small Streams In The Heartland Inventory And Monitoring Network, Version 2.0, Hope R. Dodd, David G. Peitz, Gareth Rowell, Janice A. Hinsey, David E. Bowles, Lloyd W. Morrison, Michael D. Debacker, Jennifer L. Haack-Gaynor, Jeffrey M. Williams
Protocol For Monitoring Fish Communities In Small Streams In The Heartland Inventory And Monitoring Network, Version 2.0, Hope R. Dodd, David G. Peitz, Gareth Rowell, Janice A. Hinsey, David E. Bowles, Lloyd W. Morrison, Michael D. Debacker, Jennifer L. Haack-Gaynor, Jeffrey M. Williams
United States National Park Service: Publications
Executive Summary
Fish communities are an important component of aquatic systems and are good bioindicators of ecosystem health. Land use changes in the Midwest have caused sedimentation, erosion, and nutrient loading that degrades and fragments habitat and impairs water quality. Because most small wadeable streams in the Heartland Inventory and Monitoring Network (HTLN) have a relatively small area of their watersheds located within park boundaries, these streams are at risk of degradation due to adjacent land use practices and other anthropogenic disturbances. Shifts in the physical and chemical properties of aquatic systems have a dramatic effect on the biotic community. …
Ecological Risk Assessment Of Managed Relocation As A Climate Change Adaptation Strategy, Aviv Karasov-Olson, Mark W. Schwartz, Julian D. Olden, Sarah Skikne, Jessica J. Hellmann, Sarah Allen, Christy Brigham, Danielle Buttke, David J. Lawrence, Abraham J. Miller-Rushing, Jeffrey T. Morisette, Gregor W. Schuurman, Melissa Trammell, Cat Hawkins Hoffman
Ecological Risk Assessment Of Managed Relocation As A Climate Change Adaptation Strategy, Aviv Karasov-Olson, Mark W. Schwartz, Julian D. Olden, Sarah Skikne, Jessica J. Hellmann, Sarah Allen, Christy Brigham, Danielle Buttke, David J. Lawrence, Abraham J. Miller-Rushing, Jeffrey T. Morisette, Gregor W. Schuurman, Melissa Trammell, Cat Hawkins Hoffman
United States National Park Service: Publications
Executive Summary
Changing climate and introduced species are placing an increasing number of species at risk of extinction. Increasing extinction risk is increasing calls to protect species by relocating, or translocating, them to locations with more favorable biotic or climatic conditions. Managed relocation, or assisted migration, of species entails risks to both the conservation target organisms being moved as well as the recipient ecosystems into which they are moved.
Recognizing this risk, calls have been made for practitioners interested in considering a managed relocation project to engage in a serious risk assessment prior to advancing a project. We engaged a …
Protocol For Monitoring Aquatic Invertebrates Of Small Streams In The Heartland Inventory & Monitoring Network, Version 2.1, David E. Bowles, Michael H. Williams, Hope R. Dodd, Lloyd W. Morrison, Janice A. Hinsey, J. Tyler Cribbs, Gareth A. Rowell, Michael D. Debecker, Jennifer L. Haack-Gaynor, Jeffrey M. Williams
Protocol For Monitoring Aquatic Invertebrates Of Small Streams In The Heartland Inventory & Monitoring Network, Version 2.1, David E. Bowles, Michael H. Williams, Hope R. Dodd, Lloyd W. Morrison, Janice A. Hinsey, J. Tyler Cribbs, Gareth A. Rowell, Michael D. Debecker, Jennifer L. Haack-Gaynor, Jeffrey M. Williams
United States National Park Service: Publications
Executive Summary
The Heartland Inventory and Monitoring Network (HTLN) is a component of the National Park Service’s (NPS) strategy to improve park management through greater reliance on scientific information. The purposes of this program are to design and implement long-term ecological monitoring and provide information for park managers to evaluate the integrity of park ecosystems and better understand ecosystem processes. Concerns over declining surface water quality have led to the development of various monitoring approaches to assess stream water quality. Freshwater streams in network parks are threatened by numerous stressors, most of which originate outside park boundaries. Stream condition and …
The Economic Impact Of Paradise Cove Aquatic Center In Richmond, Kentucky, Laruen Kilburn, Michael J. Bradley, James N. Maples
The Economic Impact Of Paradise Cove Aquatic Center In Richmond, Kentucky, Laruen Kilburn, Michael J. Bradley, James N. Maples
Faculty Publications - Tourism
One of the most effective ways for rural communities to improve the local economy is by exploring opportunities related to tourism. When communities focus their resources on expanding and improving the tourism industry, it leads to additional opportunities for these communities to increase their revenue, provide jobs and revitalize the local economy. Like many other agencies, the Richmond Parks and Recreation Department has gradually expanded the tourism industry within the City of Richmond in Madison County, Kentucky. To help continue the expansion of this industry, Paradise Cove Aquatic Center opened in 2008. This decision was made because waterparks were becoming …
A Novel Spatio-Temporal Examination Of Children's Accessibility, Exposure, And Engagement To Parks And Recreation Spaces In Middlesex-London, Ontario, Malcolm K. Little
A Novel Spatio-Temporal Examination Of Children's Accessibility, Exposure, And Engagement To Parks And Recreation Spaces In Middlesex-London, Ontario, Malcolm K. Little
Electronic Thesis and Dissertation Repository
Children are spending more free time engaged in activities indoors, rather than in outdoor environments such as parks and recreation spaces. Parks and recreation spaces provide amenities that promote physical, cognitive, and social health among children. As it relates to the complexities of children’s living situations, properly measuring children’s levels of interactions with these spaces is poorly understood in geography research.
By examining various attributes of children, this thesis improves on the measurement of children’s levels of interactions with parks and recreation spaces. Research herein utilized household survey data, a high-resolution GIS dataset of environmental factors, and GPS logs from …
Air Pollution And Outdoor Recreation On Urban Trails: A Case Study Of The Elizabeth River Trail, Norfolk, Va, James E. Mccann
Air Pollution And Outdoor Recreation On Urban Trails: A Case Study Of The Elizabeth River Trail, Norfolk, Va, James E. Mccann
Human Movement Sciences & Special Education Theses & Dissertations
Poor air quality represents a significant health risk, especially when recreating outdoors in urban parks and trails. It is important for managers of urban parks and trail to understand how potential visitors’ perceptions of air quality and health risks and benefits may affect visitation. The goal of this study was to investigate temporal variance in air quality along the Elizabeth River Trail, an urban trail located in Norfolk, Virginia, as well as trail users’ perceptions of air quality and of health benefits in relation to trail use. The researcher rode a bicycle with a Dylos DC1700-PM mobile air quality monitor …
Ua12/2/1 Fit 2020, Wku Student Affairs
Ua12/2/1 Fit 2020, Wku Student Affairs
WKU Archives Records
Special edition of the College Heights Herald regarding fitness, includes articles:
- Dees, Marshall. Nostalgic Fun for the Child in You
- Rock Steady, Rock Strong – Boxing
- Dowell, Macie. Red Towel Workouts
- Bowling Green Course Welcomes New Golfers – Bowling Green Parks & Recreation
- Get Out, Get Fit – Parks
- Gym Jams
Agate Fossil Beds National Monument, Paleontological Resources Management Plan (Public Version), Scott Kottkamp, Vincent L. Santucci, Justin S. Tweet, Jessica De Smet, Ellen Stark
Agate Fossil Beds National Monument, Paleontological Resources Management Plan (Public Version), Scott Kottkamp, Vincent L. Santucci, Justin S. Tweet, Jessica De Smet, Ellen Stark
United States National Park Service: Publications
Executive Summary
Since Agate Springs Ranch was founded by James H. Cook in 1887, exquisite examples of transitional Miocene mammalian fauna have been found along this stretch of the Niobrara River valley. Collectively these paleontological discoveries, along with the existing archeological and historical Native American collection, were the basis for establishing Agate Fossil Beds National Monument (AGFO) as a unit of the National Park System (NPS). The fossil remains from the Harrison and Anderson Ranch formations span a short, but important, time period within the Miocene Epoch. AGFO has provided science with an intimate look into North American mammalian evolution …
Rfia: An R Package For Estimation Of Forest Attributes With The Us Forest Inventory And Analysis Database, Hunter Stanke, Andrew O. Finley, Aaron S. Weed, Brian F. Walters, Grant M. Domke
Rfia: An R Package For Estimation Of Forest Attributes With The Us Forest Inventory And Analysis Database, Hunter Stanke, Andrew O. Finley, Aaron S. Weed, Brian F. Walters, Grant M. Domke
United States National Park Service: Publications
Forest Inventory and Analysis (FIA) is a US Department of Agriculture Forest Service program that aims to monitor changes in forests across the US. FIA hosts one of the largest ecological datasets in the world, though its complexity limits access for many potential users. rFIA is an R package designed to simplify the estimation of forest attributes using data collected by the FIA Program. Specifically, rFIA improves access to the spatiotemporal estimation capacity of the FIA Database via space–time indexed summaries of forest variables within user-defined population boundaries (e.g., geographic, temporal, biophysical). The package implements multiple design-based estimators, and has …
Development Of A Modified Floristic Quality Index As A Rapid Habitat Assessment Method In The Northern Everglades, Rebakah E. Gibble, Donatto D. Surratt
Development Of A Modified Floristic Quality Index As A Rapid Habitat Assessment Method In The Northern Everglades, Rebakah E. Gibble, Donatto D. Surratt
United States National Park Service: Publications
Floristic quality assessments (FQA) using floristic quality indices (FQIs) are useful tools for assessing and comparing vegetation communities and related habitat condition. However, intensive vegetation surveys requiring significant time and technical expertise are necessary, which limits the use of FQIs in environmental monitoring programs. This study modified standard FQI methods to develop a rapid assessment method for characterizing and modeling change in wetland habitat condition in the northern Everglades. Method modifications include limiting vegetation surveys to a subset of taxa selected as indicators of impact and eliminating richness and/or abundance factors from the equation. These modifications reduce the amount of …
Fire Monitoring Handbook
United States National Park Service: Publications
Fire is a powerful and enduring force that has had, and will continue to have, a profound influence on National Park Service (NPS) lands. Fire management decisions within the National Park Service require information on fire behavior and on the effects of fire on park resources. With good reason, the public is holding park management increasingly accountable, especially in the area of fire management. Federal and state agencies are instituting progressively more stringent guidelines for burning, monitoring, and evaluation. The impetus behind these guidelines and the purpose of this handbook are to ensure that management objectives are being met, to …
Citizen Engagement In Aquatics Equity: The Case Of Winston Waterworks, Steven N. Waller Phd, James H. Bemiller Jd, Emliy J. Johnson, Chermaine D. Cole, Jason Scott Phd, Angela Wozencroft, Phd
Citizen Engagement In Aquatics Equity: The Case Of Winston Waterworks, Steven N. Waller Phd, James H. Bemiller Jd, Emliy J. Johnson, Chermaine D. Cole, Jason Scott Phd, Angela Wozencroft, Phd
International Journal of Aquatic Research and Education
Historically, swimming pools have been a source of inequity when it comes to the distribution of recreation services in the United States. Many of the problems that correlate with the inequitable allocation of recreation resources including public swimming pools began with ideas about race, geography, poor planning practices and faulty policymaking (Rothstein, 2017). Moreover, one of the primary outcomes of engaged, inclusive planning is equity in the provision of recreation programs and facilities. In this essay, we offer a summary of key legal cases that help address questions related resource allocation related to public swimming pools. Finally, we present a …
A Comprehensive Analysis Of Aquatic Programming At Historically Black Colleges And Universities (Hbcus), Tiffany Monique Quash, Knolan C. Rawlins, Shaun M. Anderson
A Comprehensive Analysis Of Aquatic Programming At Historically Black Colleges And Universities (Hbcus), Tiffany Monique Quash, Knolan C. Rawlins, Shaun M. Anderson
International Journal of Aquatic Research and Education
This article provides a comprehensive examination of aquatic programming at Historically Black Colleges and Universities (HBCUs). HBCUs consist of public, private, 2-year, and 4-year institutions (U.S. Department of Education, 2018). Historically, HBCUs provided descendants of the enslaved access to higher education opportunities (Brown, Donahoo, & Bertrand, 2001). HBCUs now serve a more diverse community and the core focus remains on inclusion, social justice, diversity, empowerment, leadership, and cultural competence (Kennedy, 2012; Rawlins, 2018). Consequently, HBCUs may provide an ideal environment to address aquatic activity and the drowning disparity in the African American community. In the current study, researchers sent a …
Acoustically Advertising Male Harbour Seals In Southeast Alaska Do Not Make Biologically Relevant Acoustic Adjustments In The Presence Of Vessel Noise, Leanna P. Matthews, Michelle E.H. Fournet, Christine Gabriele, Holger Klinck, Susan E. Parks
Acoustically Advertising Male Harbour Seals In Southeast Alaska Do Not Make Biologically Relevant Acoustic Adjustments In The Presence Of Vessel Noise, Leanna P. Matthews, Michelle E.H. Fournet, Christine Gabriele, Holger Klinck, Susan E. Parks
United States National Park Service: Publications
Aquatically breeding harbour seal (Phoca vitulina) males use underwater vocalizations during the breeding season to establish underwater territories, defend territories against intruder males, and possibly to attract females. Vessel noise overlaps in frequency with these vocalizations and could negatively impact breeding success by limiting communication space. In this study, we investigated whether harbour seals employed anti-masking strategies to maintain communication in the presence of vessel noise in Glacier Bay National Park and Preserve, Alaska. Harbour seals in this location did not sufficiently adjust source levels or acoustic parameters of vocalizations to compensate for acoustic masking. Instead, for every 1 dB …
Carnivore Population Structure Across An Urbanization Gradient: A Regional Genetic Analysis Of Bobcats In Southern California, Julia G. Smith, Megan K. Jennings, Erin E. Boydston, Kevin R. Crooks, Holly B. Ernest, Seth Riley, Laurel E. K. Serleys, Shaelynn Sleater-Squires, Rebecca L. Lewison
Carnivore Population Structure Across An Urbanization Gradient: A Regional Genetic Analysis Of Bobcats In Southern California, Julia G. Smith, Megan K. Jennings, Erin E. Boydston, Kevin R. Crooks, Holly B. Ernest, Seth Riley, Laurel E. K. Serleys, Shaelynn Sleater-Squires, Rebecca L. Lewison
United States National Park Service: Publications
Context In human-dominated landscapes, habitat fragmentation and barriers to movement can interrupt gene flow. While often considered at a local extent, regional analyses are also needed to reveal broader landscape-mediated population processes.
Objectives To explore the relationship between patterns of gene flow and fragmentation resulting from urbanization across southern California, we used the bobcat as an indicator species. We assembled data for a landscape level genetic analysis across southern California from both archived and new samples, including two northern Californian populations for comparison, to identify local and regional areas affected by isolation.
Methods Our regional analyses focused on a dataset …
Asynchronous Carbon Sink Saturation In African And Amazonian Tropical Forests, Wannes Hubau, Simon L. Lewis, Et. Al. Authors
Asynchronous Carbon Sink Saturation In African And Amazonian Tropical Forests, Wannes Hubau, Simon L. Lewis, Et. Al. Authors
United States National Park Service: Publications
Structurally intact tropical forests sequestered about half of the global terrestrial carbon uptake over the 1990s and early 2000s, removing about 15 percent of 1–3 anthropogenic carbon dioxide emissions. Climate-driven vegetation models 4,5 typically predict that this tropical forest ‘carbon sink’ will continue for decades . Here we assess trends in the carbon sink using 244 structurally intact African tropical forests spanning 11 countries, compare them with 321 published plots from Amazonia and investigate the underlying drivers of the trends. The carbon sink in live aboveground biomass in intact African tropical forests has been stable for the three decades to …
Problematic Plant Monitoring In Homestead National Monument Of America, 2006–2017, Craig C. Young
Problematic Plant Monitoring In Homestead National Monument Of America, 2006–2017, Craig C. Young
United States National Park Service: Publications
Abstract
Managers are challenged with the impact of problematic plants, including exotic, invasive, and pest plant species. Information on the abundance, distribution, and location of these plants is essential for developing risk-based approaches to managing these species. Based on surveys conducted in 2006, 2009, 2013, and 2017, Heartland Inventory and Monitoring Network staff and contractors identified a cumulative total of 20 potentially problematic plant species in Homestead National Monument of America (NMA). Of the 13 species found in 2017, we characterized 4 as very low frequency, 4 as low frequency, 2 as medium frequency, and 3 as high frequency. Only …
Problematic Plant Monitoring In Tallgrass Prairie National Preserve, 2006–2018, Craig C. Young
Problematic Plant Monitoring In Tallgrass Prairie National Preserve, 2006–2018, Craig C. Young
United States National Park Service: Publications
Abstract
Managers are challenged with the impact of problematic plants, including exotic, invasive, and pest plant species. Information on the abundance, distribution, and location of these plants is essential for developing risk-based approaches to managing these species. Based on surveys conducted in 2006, 2010, 2014, and 2018, Heartland Inventory and Monitoring Network staff and contractors identified a cumulative total of 33 problematic plant species in Tallgrass Prairie National Preserve. Of the 27 species found in 2018, we characterized 14 as very low frequency, 9 as low frequency, 4 as medium frequency, and 0 as high frequency. Only 4 (14.8%) of …
Estimation Of Available Epinephrine Dose In Expired And Discolored Autoinjectors Via Quantitative Smartphone Imaging, Amirus Saleheen, Bill M. Campbell, Rebecca A. Prosser, Christopher A. Baker
Estimation Of Available Epinephrine Dose In Expired And Discolored Autoinjectors Via Quantitative Smartphone Imaging, Amirus Saleheen, Bill M. Campbell, Rebecca A. Prosser, Christopher A. Baker
United States National Park Service: Publications
Epinephrine autoinjectors (EAIs) are important first aid medications for treating anaphylaxis. A 10-fold price increase over the past 12 years and evidence that expired EAIs may still contain significant doses of available epinephrine have motivated interest in the efficacy of expired EAIs as treatments of last resort. Degradation of expired EAIs, which can be caused by improper storage conditions, results in various degrees of discoloration of the epinephrine solution. Previous studies have determined that significant epinephrine remains available in expired EAIs, but these have only considered EAIs that show no discoloration. Here, we investigate the potential for colorimetric estimation of …
Nurse Rock Microclimates Significantly Buffer Exposure To Freezing T Temperature And Moderate Summer Temperature, Joshua L. Conver, Elliott Yarwood, Lucas D. Hetherington, Don E. Swann
Nurse Rock Microclimates Significantly Buffer Exposure To Freezing T Temperature And Moderate Summer Temperature, Joshua L. Conver, Elliott Yarwood, Lucas D. Hetherington, Don E. Swann
United States National Park Service: Publications
Nurse tree canopies mitigate exposure to freezing temperatures that could result in injury or mortality to the saguaro cactus (Carnegiea gigantea). Abiotic objects have been hypothesized to provide similar beneficial microclimates. We used data loggers at 11 nurse rock sites to record daily daytime summer maximum and winter nighttime minimum temperatures at Saguaro National Park, Arizona, to examine the effectiveness of rocks to moderate seasonal temperature extremes in the microclimate. Temperatures at rock sites averaged 2 °C warmer than exposed open control sites in winter. We found that the efficiency of rocks to act as insulators significantly increased as temperature …
Effects Of Culling White-Tailed Deer On Tree Regeneration And Microstegium Vimineum, An Invasive Grass, John Paul Schmit, Elizabeth R. Matthews, Andrejs Brolis
Effects Of Culling White-Tailed Deer On Tree Regeneration And Microstegium Vimineum, An Invasive Grass, John Paul Schmit, Elizabeth R. Matthews, Andrejs Brolis
United States National Park Service: Publications
Reduction of forest regeneration due to overbrowsing by white-tailed deer is a growing concern for land managers. Abundant deer can impede forest regeneration through direct predation on tree seedlings. Additionally high deer density can facilitate the establishment of a dense understory of browse tolerant plant species that shades seedlings and persists even in the absence of deer. In response to these challenges, land managers have sought to reduce deer herds to restore tree regeneration, but few studies have evaluated the effectiveness of this management. Our study took place in Catoctin Mountain Park, a US National Park Service unit with a …
Implications Of Organic Mass To Carbon Ratios Increasing Over Time In The Rural United States, W.C. Malm, B.A. Schichtel, J.L. Hand, A.J. Prenni
Implications Of Organic Mass To Carbon Ratios Increasing Over Time In The Rural United States, W.C. Malm, B.A. Schichtel, J.L. Hand, A.J. Prenni
United States National Park Service: Publications
The thermal evolution procedure used by most monitoring programs in the United States to determine carbonaceous aerosol concentrations is referred to as the thermal‐optical reflectance method, where an aerosol sample that has been collected on a quartz filter is heated and evolved carbon is characterized as either organic (OC) or light absorbing carbon (LAC). Evolved carbon assigned to OC is multiplied by a factor, Roc, to achieve an estimate of organic mass. Over the last 10–15 years, Roc, estimated through multiple linear regression analysis of data collected in the Interagency Monitoring of Protected Visual Environments (IMPROVE) program, has increased at …