Search Results - "Bailey, Derek W."

Development of a Novel Classification Approach for Cow Behavior Analysis Using Tracking Data and Unsupervised Machine Learning Techniques by Liu, Jiefei, Bailey, Derek W, Cao, Huiping, Son, Tran Cao, Tobin, Colin T

“…Global Positioning Systems (GPSs) can collect tracking data to remotely monitor livestock well-being and pasture use. Supervised machine learning requires…”
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Developing a Simulated Online Model That Integrates GNSS, Accelerometer and Weather Data to Detect Parturition Events in Grazing Sheep: A Machine Learning Approach by Fogarty, Eloise S, Swain, David L, Cronin, Greg M, Moraes, Luis E, Bailey, Derek W, Trotter, Mark

“…In the current study, a simulated online parturition detection model is developed and reported. Using a machine learning (ML)-based approach, the model…”
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Temporal Changes in Association Patterns of Cattle Grazing at Two Stocking Densities in a Central Arizona Rangeland by Tobin, Colin T., Bailey, Derek W., Stephenson, Mitchell B., Trotter, Mark G.

“…Proper grazing management of arid and semi-arid rangelands requires experienced personnel and monitoring. Applications of GPS tracking and sensor technologies…”
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Identification and Creation of Optimum Habitat Conditions for Livestock by Bailey, Derek W.

“…Optimum habitat condition is a concept typically used for wildlife rather than livestock. The definition for optimal livestock habitat will vary with…”
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A Case Study Using Accelerometers to Identify Illness in Ewes following Unintentional Exposure to Mold-Contaminated Feed by Gurule, Sara C, Flores, Victor V, Forrest, Kylee K, Gifford, Craig A, Wenzel, John C, Tobin, Colin T, Bailey, Derek W, Hernandez Gifford, Jennifer A

“…Sensor technologies can identify modified animal activity indicating changes in health status. This study investigated sheep behavior before and after illness…”
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Targeted Grazing in Southern Arizona: Using Cattle to Reduce Fine Fuel Loads by Bruegger, Retta A., Varelas, Leticia A., Howery, Larry D., Torell, L. Allen, Stephenson, Mitchell B., Bailey, Derek W.

“…Managing the risk of wildfires is a growing concern in the western United States. Targeted grazing, or managing livestock grazing to achieve specific…”
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Phenological changes in the nutritive value of honey mesquite leaves, pods, and flowers in the Chihuahuan Desert by Mayagoitia, Piedad, Bailey, Derek W., Estell, Richard E.

“…Honey mesquite [Prosopis glandulosa (Torr.) glandulosa] is a potential foraging resource in southwestern United States rangelands and in other semi‐arid…”
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Sensor based disease detection: A case study using accelerometers to recognize symptoms of Bovine Ephemeral Fever by Tobin, Colin, Bailey, Derek W., Trotter, Mark G., O'Connor, Lauren

“…•Two of 8 heifers monitored with accelerometers became ill with Bovine Ephemeral Fever.•Accelerometers showed a decrease in activity when heifer were ill.•No…”
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Effect of Previous Experience on Grazing Patterns and Diet Selection of Brangus Cows in the Chihuahuan Desert by Bailey, Derek W., Thomas, Milton G., Walker, John W., Witmore, Barbara K., Tolleson, Doug

“…The ability to adapt to different environments is critical when livestock are moved because of drought or other management considerations. The impact of…”
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Climate Change and North American Rangelands: Trends, Projections, and Implications by Polley, H. Wayne, Briske, David D., Morgan, Jack A., Wolter, Klaus, Bailey, Derek W., Brown, Joel R.

“…The amplified “greenhouse effect” associated with increasing concentrations of greenhouse gases has increased atmospheric temperature by 1°C since…”
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Synthesis Paper: Targeted Livestock Grazing: Prescription for Healthy Rangelands by Bailey, Derek W., Mosley, Jeffrey C., Estell, Richard E., Cibils, Andres F., Horney, Marc, Hendrickson, John R., Walker, John W., Launchbaugh, Karen L., Burritt, Elizabeth A.

“…Targeted livestock grazing is a proven tool for manipulating rangeland vegetation, and current knowledge about targeted livestock grazing is extensive and…”
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Climate-change adaptation on rangelands: linking regional exposure with diverse adaptive capacity by Briske, David D, Joyce, Linda A, Polley, H Wayne, Brown, Joel R, Wolter, Klaus, Morgan, Jack A, McCarl, Bruce A, Bailey, Derek W

“…The ecological consequences of climate change are predicted to vary greatly throughout US rangelands. Projections show warming and drying in the southern Great…”
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Evaluation of the automated reference toolset as a method to select reference plots for oil and gas reclamation on Colorado Plateau rangelands by Di Stéfano, Sean, Karl, Jason W., Bailey, Derek W., Hale, Steven

“…Rangelands are typically characterized by low precipitation and low biomass which makes them susceptible to disturbance and difficult to reclaim. These…”
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Use of GPS tracking collars and accelerometers for rangeland livestock production research by Bailey, Derek W, Trotter, Mark G, Knight, Colt W, Thomas, Milt G

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Rotational Grazing Systems and Livestock Grazing Behavior in Shrub-Dominated Semi-Arid and Arid Rangelands by Bailey, Derek W., Brown, Joel R.

“…Rotational grazing systems (RGS) are often implemented to alleviate undesirable selective grazing by livestock. At both fine and coarse scales, livestock…”
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Association patterns of visually-observed cattle on Montana, USA foothill rangelands by Stephenson, Mitchell B., Bailey, Derek W., Jensen, Delyn

“…•Associations among beef cattle explored in herd sizes from 27 to 240 cows.•Associations in herds of less than 40 cows did not differ from levels expected by…”
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Evaluation of Low-Moisture Blocks and Conventional Dry Mixes for Supplementing Minerals and Modifying Cattle Grazing Patterns by Bailey, Derek W., Welling, G. Robert

“…Two studies were conducted to evaluate the effectiveness of low-moisture blocks (LMB) and conventional dry mixes (CDM) for supplementing minerals to cattle on…”
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Individual Animal Selection Has the Potential to Improve Uniformity of Grazing on Foothill Rangeland by Bailey, Derek W., VanWagoner, Harv C., Weinmeister, Robin

“…Uneven grazing distribution is a concern in rugged topography, because resources may be adversely impacted if livestock concentrate in gentle terrain near…”
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Climate Change and North American Rangelands: Assessment of Mitigation and Adaptation Strategies by Joyce, Linda A., Briske, David D., Brown, Joel R., Polley, H. Wayne, McCarl, Bruce A., Bailey, Derek W.

“…Recent climatic trends and climate model projections indicate that climate change will modify rangeland ecosystem functions and the services and livelihoods…”
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A climate change indicator framework for rangelands and pastures of the USA by Ojima, Dennis S., Aicher, Rebecca, Archer, Steven R., Bailey, Derek W., Casby-Horton, Susan M., Cavallaro, Nancy, Reyes, Julian J., Tanaka, John A., Washington-Allen, Robert A.

“…Rangelands and pastures include grasslands, savannas, shrublands, and woodlands and are often maintained to support grazing animals. Rangelands and pastures…”
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