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Public lands are an important source of outdoor recreation opportunities. These opportunities provide a variety of public benefits, including promoting physical and mental well-being, contributing to local economies, and raising conservation awareness. In response to current and potential demand, it is ever more important to meet and anticipate infrastructure and user needs. With aging infrastructure (e.g., trails, access points, parking lots), managers face the need to maintain existing, and establish new, recreation opportunities to meet user expectations and contribute to positive percepti...
AuthorsAshley E. Askew, Eric M. White, Gary T. GreenKeywordsSourceJournal of Park and Recreation Administration. 42(1): 21-41.Year2024 -
Accurate measurements of particle diameter are necessary for quantitative characterization of key aerosol properties including the Cunningham slip correction factor, charging probability, diffusion coefficient, coagulation coefficient, and optical properties. In this study, we use four techniques to measure the diameter of nominal 100 nm reference spheres having a distributional standard deviation of less than 2 nm. The instruments used are a differential mobility analyzer (DMA), atomic force microscopy (AFM), scanning electron microscopy (SEM), and an electrical-gravitational aerosol balance ...
AuthorsGeorge W. Mulholland, Kaleb J. Duelge, Vincent A. Hackley, Natalia Farkas, John A. Kramar, Michael R. Zachariah, Keiji Takahata, Hiromu Sakurai, Kensei EharaKeywordsSourceAerosol Science and TechnologyYear2024 -
Climate change affects populations over broad geographic ranges due to spatially autocorrelated abiotic conditions known as the Moran effect. However, populations do not always respond to broad-scale environmental changes synchronously across a landscape. We combined multiple datasets for a retrospective analysis of time-series count data (5–28 annual samples per segment) at 144 stream segments dispersed over nearly 1,000 linear kilometers of range to characterize the population structure and scale of spatial synchrony across the southern native range of a coldwater stream fish (brook trout, S...
AuthorsGeorge Valentine, Xinyi Lu, Evan S. Childress, C. Andrew Dolloff, Nathaniel P. Hitt, Matthew A. Kulp, Benjamin H. Letcher, Kasey C. Pregler, Jacob M. Rash, Mevin B. Hooten, Yoichiro KannoKeywordsSourceGlobal Change Biology. 2023: e17029.Year2024 -
Conservationists increasingly position conservation that is mutually beneficial to people and biodiversity on the promise of empowerment of people through participatory discourse, metrics, processes, and outcomes. Empowerment represents multidimensional concepts and theories that permeate the interlinking levels of power, from the psychological to the political, and social scales in which conservation operates. The multifaceted nature of empowerment makes it challenging to understand, pursue, and evaluate as a central philosophical commitment and goal-oriented practice in conservation. Moreove...
AuthorsMichael A. Petriello, Lauren Redmore, Aby L. Sène, Dhananjaya Katju, Lilian Barraclough, Sara Boyd, Carly Madge, Anastasia Papadopoulos, Reddi S. YalamalaKeywordsSourceConservation Biology. 2024: e14249.Year2024 -
Las pautas propuestas en Monitoreo de árboles urbanos: una guía de recursos (en adelante llamado la Guía de recursos) se crearon y depuraron a lo largo de muchos años para atender la necesidad de protocolos estandarizados para el monitoreo de árboles urbanos. La Guía de recursos ofrece orientación detallada a los encargados e investigadores de bosques urbanos que desean diseñar y poner en práctica un proyecto de monitoreo de árboles urbanos. Esta Guía de recursos es complemento de Monitoreo de árboles urbanos: una guía de campo; no obstante, la Guía de recursos también puede utilizarse por sí ...
AuthorsNatalie S. van Doorn, Lara A. Roman, E. Gregory McPherson, Bryant C. Scharenbroch, Jason G. Henning, Johan P.A. Ostberg, Lee S. Mueller, Andrew K. Koeser, John R. Mills, Richard A. Hallet, John E. Sanders, John Battles, Debra J. Boyer, Jason P. Fristensky, Sarah K. Mincey, Paula J. Peper, Jessica M. VogtSourceGen. Tech. Rep. PSW-GTR-266-ES.Year2024 -
The transition from Late Pleistocene to Holocene climates triggered biogeographical upheavals worldwide that included species’ range shifts, changes in community composition and structure, altered disturbance regimes, and development of new ecological interactions. The Great Basin, with its hundreds of high mountain ranges interspersed by broad basins, was a prominent stage on which such dynamics unfolded. Many plant and animal species remained scattered at low elevations throughout the Great Basin during the cold Late Pleistocene. Without significant displacements in latitude, they responded ...
AuthorsC.I. Millar, D.H. ThomasSourceShoshonean ethnogenesis and the Numic spreadings. The Archaeology of Monitor Valley, Contribution 6.Year2024 -
Near-infrared (NIR) spectroscopy is widely used as a nondestructive evaluation (NDE) tool for predicting wood properties. When deploying NIR models, one faces challenges in ensuring representative training data, which large datasets can mitigate but often at a significant cost. Machine learning and deep learning NIR models are at an even greater disadvantage because they typically require higher sample sizes for training. In this study, NIR spectra were collected to predict the modulus of elasticity (MOE) of southern pine lumber (training set = 573 samples, testing set = 145 samples). To accou...
AuthorsSyed Ali, Sameen Raut, Joseph Dahlen, Laurence Schimleck, Richard Bergman, Zhou Zhang, Vahid NasirKeywordsSourceSensorsYear2024 -
Degradation of insulation paper is a key contributor to the failure of power transformers. Insulation degradation accelerates at elevated temperatures, which highlights the potential for better thermal management to prolong life. While several studies have analyzed the benefits of high thermal conductivity oil for reducing temperatures inside a transformer, this study is an initial assessment of the benefits of high thermal conductivity paper on transformer life. Blending particulates with cellulosic fibers offers a pathway for high thermal conductivity paper (with good dielectric properties),...
AuthorsS. Bilyaz, A. Bhati, M. Hamalian, K. Maynor, T. Soori, A. Gattozzi, C. Penney, D. Weeks, Y. Xu, L. Hu, J.Y. Zhu, J.K. Nelson, R. Hebner, V. BahadurKeywordsSourceHeliyonYear2024 -
In deconstructing lignocellulosic biomass, processing solvents directly and indirectly influence the process efficiency by reducing recalcitrance, fractionating target components, preserving/modifying biomass components, etc. Hydrotropic solvents have shown effective biomass fractionation performance due to their unique amphiphilic structure. In particular, these hydrotropes effectively separate lignin from the cellulose-rich fraction with minimum modification and maximum recovery, which aligns well with the biorefinery strategy by enhancing the recovered lignin quality and quantity. Hydrotrop...
AuthorsSoyeon Jeong, Jiae Ryu, Qiang Yang, J.Y. Zhu, Chang Geun. YooSourceGreen ChemistryYear2024 -
Approaches to forest management have changed markedly in the Pacific Northwest in recent decades, yet legacies of past management persist on the landscape. Following clearcut logging, woody residues were typically burned to reduce future fire hazard, create planting spots, facilitate natural recruitment, and retard growth of competing vegetation. We asked whether legacies of broadcast burning persist in the forest understory during the early stages of stand closure, how they manifest structurally or compositionally, whether they are altered by subsequent management (pre-commercial thinning), a...
AuthorsCharles B. Halpern, Ann L. Lezberg, Richard E. BigleyKeywordsSourceForest Ecology and Management. 558: 121772.Year2024